Approved

By order of the Ministry of Regional Development of Russia

dated December 29, 2011 N 626
SET OF RULES
INTERNAL WATER PIPELINE AND SEWERAGE OF BUILDINGS
UPDATED EDITION OF SNIP 2.04.01-85*
Domestic water supply and drainage systems in buildings
SP 30.13330.2012
OKS 91.140.60,

OKS 91.140.80
Date of introduction

January 1, 2013
Preface
The goals and principles of standardization in the Russian Federation are established by the Federal Law of December 27, 2002 N 184-FZ “On Technical Regulation”, and the development rules are established by the Decree of the Government of the Russian Federation of November 19, 2008 N 858 “On the procedure for the development and approval of sets of rules ".
Rulebook Details
1. Executors - OJSC SantekhNIIproekt, OJSC Scientific Research Center Construction.

2. Introduced by the Technical Committee for Standardization TC 465 "Construction".

3. Prepared for approval by the Department of Architecture, Construction and Urban Development Policy.

4. Approved by Order of the Ministry of Regional Development of the Russian Federation (Ministry of Regional Development of Russia) dated December 29, 2011 N 626 and put into effect on January 1, 2013.

5. Registered by the Federal Agency for Technical Regulation and Metrology (Rosstandart). Revision of SP 30.13330.2010 "SNiP 2.04.01-85*. Internal water supply and sewerage of buildings."
Information about changes to this set of rules is published in the annually published information index "National Standards", and the text of changes and amendments is published in the monthly published information index "National Standards". In case of revision (replacement) or cancellation of this set of rules, the corresponding notice will be published in the monthly published information index "National Standards". Relevant information, notices and texts are also posted in the public information system - on the official website of the developer (Ministry of Regional Development of Russia) on the Internet.
Introduction
This set of rules is an updated edition of SNiP 2.04.01-85* “Internal water supply and sewerage of buildings”. The basis for the development of the regulatory document is: Federal Law of December 30, 2009 N 384-FZ “Technical Regulations on the Safety of Buildings and Structures”, Federal Law N 184-FZ “On Technical Regulation”, Federal Law N 261-FZ “On Energy Saving” and on improving energy efficiency."

The updating of SNiP was carried out by a team of authors: OJSC SantekhNIIproekt (candidate of technical sciences A.Ya. Sharipov, engineer T.I. Sadovskaya, engineer E.V. Chirikova), OJSC Mosproekt (engineers E.N. Chernyshev , K.D. Kunitsyna), NP "ABOK" (Doctor of Technical Sciences, Prof. Yu.A. Tabunshchikov, engineer A.N. Kolubkov), JSC "CNS" (engineer V.P. Bovbel) , Chamber of Commerce and Industry of the Russian Federation (engineer A.S. Verbitsky), State Unitary Enterprise "MosvodokanalNIIproekt" (engineer A.L. Lyakmund).
The mandatory application of Section 1 ensures compliance with the requirements of Federal Law dated December 30, 2009 N 384-FZ “Technical Regulations on the Safety of Buildings and Structures” (RF Government Decree dated December 26, 2014 N 1521).

1 area of ​​use
1.1. This set of rules applies to the designed and reconstructed internal systems of cold and hot water supply, sewerage and drains of buildings and structures (hereinafter referred to as buildings) for various purposes with a height of up to 75 meters.

1.2. These rules do not apply to:

for internal fire water supply of buildings and structures;

automatic water fire extinguishing systems;

heating points;

hot water treatment plants;

hot water supply systems that supply water for medical procedures, technological needs of industrial enterprises and water supply systems within technological equipment;

special industrial water supply systems (deionized water, deep cooling, etc.).
2. Normative references
This set of rules uses references to the following regulatory documents:

SP 5.13130.2009 Fire protection systems. Fire alarm and fire extinguishing installations are automatic. Design standards and rules

SP 10.13130.2009 Fire protection systems. Internal fire water supply. Fire safety requirements

SP 21.13330.2012 "SNiP 2.01.09-91 Buildings and structures in undermined areas and subsidence soils"

SP 31.13330.2012 "SNiP 2.04.02-84* Water supply. External networks and structures"

SP 32.13330.2012 "SNiP 2.04.03-85 Sewerage. External networks and structures"

SP 54.13330.2011 "SNiP 31-01-2003 Residential multi-apartment buildings"

SP 60.13330.2012 "SNiP 41-01-2003 Heating, ventilation and air conditioning"

SP 61.13330.2012 "SNiP 41-03-2003 Thermal insulation of equipment and pipelines"

SP 73.13330.2012 "SNiP 3.05.01-85 Internal sanitary systems of buildings"

SP 118.13330.2012 "SNiP 31-06-2009 Public buildings and structures"

SP 124.13330.2012 "SNiP 41-02-2003 Heating networks"

GOST 17.1.2.03-90 Nature conservation. Hydrosphere. Criteria and indicators of water quality for irrigation

SanPiN 2.1.4.1074-01 Drinking water. Hygienic requirements for water quality of centralized drinking water supply systems. Quality control. Hygienic requirements for ensuring the safety of hot water supply systems

SanPiN 2.1.4.2496-09 Hygienic requirements for ensuring the safety of hot water supply systems

SanPiN 2.1.2.2645-10 Sanitary and epidemiological requirements for living conditions in residential buildings and premises

SN 2.2.4/2.1.8.562-96 Noise in workplaces, in residential and public buildings and in residential areas

SN 2.2.4/2.1.8.566-96 Industrial vibration, vibration in residential and public buildings.

Note. When using this standard, it is advisable to check the validity of reference standards and classifiers in the public information system - on the official website of the national body of the Russian Federation for standardization on the Internet or according to the annually published information index "National Standards", which was published as of January 1 of the current year, and according to the corresponding monthly information indexes published in the current year. If the reference standard is replaced (changed), then when using this set of rules you should be guided by the replacing (changed) document. If the reference document is canceled without replacement, then the provision in which a reference to it is given applies to the part that does not affect this reference.
3. Terms and definitions
This document uses terms whose definitions are adopted according to the Rules for the use of public water supply and sewerage systems in the Russian Federation, approved by the Russian Federation, as well as the following terms with corresponding definitions:

3.1. Subscriber: legal entity, as well as entrepreneurs without the formation of a legal entity, who own, have economic management or operational management of objects, water supply and (or) sewerage systems that are directly connected to public water supply and (or) sewerage systems, who have entered into a water supply agreement with the organization sewerage system in accordance with the established procedure, an agreement for the supply (reception) of water and (or) reception (discharge) of wastewater;

3.2. Accident of engineering systems: damage or failure of water supply, sewerage systems or individual structures, equipment, devices, resulting in the cessation or significant reduction in the volume of water consumption and wastewater disposal, the quality of drinking water or causing damage to the environment, property of legal entities or individuals and public health;

3.3. Water consumption balance: the volume of water used per year for drinking, sanitary, fire-fighting, industrial needs and their satisfaction from all sources of water supply, including drinking water supply, recycled water supply, collection and treatment of storm drains, etc.;

3.4. Internal sewerage system (internal sewerage): a system of pipelines and devices within the boundaries of the external contour of a building and structures, limited by outlets to the first inspection well, ensuring the disposal of waste, rain and melt water into the sewerage network of the appropriate destination of the settlement or enterprise;

3.5. Internal water supply system (internal water supply): a system of pipelines and devices that provides water supply to sanitary fixtures, technological equipment and fire hydrants within the boundaries of the external contour of the walls of one building or group of buildings and structures and has a common water-measuring device from the external water supply networks of the populated area point or enterprise. In special natural conditions, the boundary of the internal water supply is calculated from the control well closest to the building (structure);

3.6. Water supply and sewerage devices and structures for connection to water supply and sewerage systems (water supply inlet or sewerage outlet): devices and structures through which the subscriber receives drinking water from the water supply system and (or) discharges wastewater into the sewerage system;

3.7. Water consumption: the use of water by the subscriber (sub-subscriber) to meet their needs;

3.8. Water supply: a technological process that ensures the collection, preparation, transportation and transfer of drinking water to subscribers;

3.9. Water disposal: a technological process that ensures the reception of wastewater from subscribers with its subsequent transfer to sewerage treatment facilities;

3.10. Water supply network: a system of pipelines and structures on them intended for water supply;

3.11. Guaranteed pressure: pressure at the subscriber's inlet, which is guaranteed to be provided by the water supply organization according to technical conditions;

3.12. Sewer network: a system of pipelines, collectors, canals and structures on them for the collection and disposal of wastewater;

3.13. Ventilated sewer riser: a riser that has an exhaust part and through it a connection with the atmosphere, facilitating air exchange in the pipelines of the sewer network;

3.14. Ventilated valve: a device that allows air to pass in one direction - following the liquid moving in the pipeline and does not allow air to pass in the opposite direction;

3.15. Unventilated sewer riser: a riser that has no communication with the atmosphere. Non-ventilated risers include:

a riser that does not have an exhaust part;

a group (at least four) of risers connected at the top by a collection pipeline, without an exhaust part;

3.16. Local treatment facilities: structures and devices designed to treat wastewater from a subscriber (sub-subscriber) before discharge (reception) into the public sewer system or for use in the recycling water supply system;

3.17. Water consumption (wastewater disposal) limit: the maximum volume of supplied (received) drinking water and received (discharged) wastewater for a certain period of time established to the subscriber by technical conditions;

3.18. Organization of water supply and sewerage services ("Vodokanal"): an enterprise (organization) that supplies water from the water supply system and (or) receives wastewater into the sewerage system and operates these systems;

3.19. Drinking water: water after treatment or in its natural state, meeting the hygienic requirements of sanitary standards and intended for drinking and domestic needs of the population and (or) food production;

3.20. Capacity of a device or structure for connection: the ability of a water supply inlet (sewer outlet) to pass the calculated amount of water (wastewater) under a given mode for a certain time;

3.21. Estimated water consumption: consumption standards based on research and operational practice, taking into account the main influencing factors (number of consumers, number of sanitary fixtures, occupancy of apartments in residential buildings, volume of production, etc.);

calculated water consumption and consumption rates cannot be used to determine the actual volume of water consumption and commercial calculations;

3.22. Estimated wastewater costs: justified by research and operational practice, the values ​​of costs predicted for the sewerage facility as a whole or part of it, taking into account influencing factors (number of consumers, number and characteristics of sanitary fixtures and equipment, capacity of drainage pipelines, etc.);

3.23. Permitting documentation: permission to connect to water supply (sewage) systems, issued by local governments in agreement with local services of Rospotrebnadzor, and technical conditions for connection, issued by the water supply and sewerage organization;

3.24. Mode of supply (receipt) of drinking water: guaranteed flow (hourly, second) and free pressure at a given characteristic water consumption for the needs of the subscriber;

3.25. Open hot water collection system: collection of hot water directly from the heating system network;

3.26. Closed hot water system: heating water for hot water supply in heat exchangers and water heaters;

3.27. Recycling water supply system: treatment system in local treatment facilities and reuse of wastewater for economic and technological needs;

3.28. Composition of wastewater: characteristics of wastewater, including a list of pollutants and their concentration;

3.30. Wastewater: water generated as a result of human economic activity (domestic wastewater) and subscribers after using water from all sources of water supply (drinking, technical, hot water supply, steam from heat supply organizations);

3.31. Metering unit for consumed drinking water and discharged wastewater (metering unit): a set of instruments and devices that ensure accounting of the amount of consumed (received) water and discharged (received) wastewater;

3.32. Centralized water supply system: a complex of engineering structures in populated areas for the collection, preparation, transportation and transfer of drinking water to subscribers;

3.33. Centralized sewerage system: a complex of engineering structures in populated areas for collecting, purifying and discharging wastewater into water bodies and treating sewage sludge.
4. General provisions
The mandatory application of clause 4.1 ensures compliance with the requirements of Federal Law dated December 30, 2009 N 384-FZ “Technical Regulations on the Safety of Buildings and Structures” (RF Government Decree dated December 26, 2014 N 1521).

4.1. Pipelines for water supply systems (including external fire extinguishing) and sewerage systems laid outside buildings must comply with the standards for external water supply and sewerage networks (SP 31.13330 and SP 32.13330).

4.2. The preparation of hot water should be provided in accordance with the standards for heating networks SP 124.13330.

4.3. In buildings of any purpose erected in sewerage areas, internal water supply and sewerage systems should be provided.

The quality of wastewater after treatment in local installations must comply with the technical conditions for receiving it in the external sewerage network and departmental standards.

4.4. In non-sewered areas of populated areas, internal water supply systems with the installation of local apartment and/or collective drinking water purification systems and sewerage systems with the installation of local treatment facilities should be provided in residential buildings with a height of more than two floors, hotels, boarding homes for the disabled and elderly, hospitals, maternity hospitals, clinics, outpatient clinics, dispensaries, sanitary and epidemiological stations, sanatoriums, rest homes, boarding houses, sports and recreational institutions, preschool educational institutions, boarding schools, institutions of primary and secondary vocational education, secondary schools, cinemas, clubs and leisure and entertainment institutions, catering establishments, sports facilities, bathhouses and laundries.

Before sending an electronic appeal to the Ministry of Construction of Russia, please read the rules of operation of this interactive service set out below.

1. Electronic applications within the sphere of competence of the Ministry of Construction of Russia, filled out in accordance with the attached form, are accepted for consideration.

2. An electronic appeal may contain a statement, complaint, proposal or request.

3. Electronic appeals sent through the official Internet portal of the Ministry of Construction of Russia are submitted for consideration to the department for working with citizens' appeals. The Ministry ensures objective, comprehensive and timely consideration of applications. Review of electronic appeals is free of charge.

4. In accordance with Federal Law No. 59-FZ dated May 2, 2006 “On the procedure for considering appeals from citizens of the Russian Federation,” electronic appeals are registered within three days and sent, depending on the content, to the structural divisions of the Ministry. The appeal is considered within 30 days from the date of registration. An electronic appeal containing issues the solution of which is not within the competence of the Ministry of Construction of Russia is sent within seven days from the date of registration to the relevant body or the relevant official whose competence includes resolving the issues raised in the appeal, with notification of this to the citizen who sent the appeal.

5. Electronic appeal is not considered if:
- absence of the applicant’s surname and name;
- indication of an incomplete or unreliable postal address;
- the presence of obscene or offensive expressions in the text;
- the presence in the text of a threat to the life, health and property of an official, as well as members of his family;
- using a non-Cyrillic keyboard layout or only capital letters when typing;
- absence of punctuation marks in the text, presence of incomprehensible abbreviations;
- the presence in the text of a question to which the applicant has already been given a written answer on the merits in connection with previously sent appeals.

6. The response to the applicant is sent to the postal address specified when filling out the form.

7. When considering an appeal, disclosure of information contained in the appeal, as well as information relating to the private life of a citizen, is not permitted without his consent. Information about applicants’ personal data is stored and processed in compliance with the requirements of Russian legislation on personal data.

8. Appeals received through the site are summarized and presented to the leadership of the Ministry for information. Answers to the most frequently asked questions are periodically published in the sections “for residents” and “for specialists”

SP 50.13330.2012 Thermal protection of buildings. Updated version of SNiP 02/23/2003 (with Amendment No. 1)

SP 60.13330.2012 Heating, ventilation and air conditioning Updated version of SNiP 41-01-2003

SP 70.13330.2012 Load-bearing and enclosing structures. Updated edition of SNiP 3.03.01-87 (with Amendments No. 1, 3)

SP 78.13330.2012 Highways. Updated edition of SNiP 3.06.03-85 (with Amendment No. 1)

• SP 4.13130.2013 Fire protection systems. Limiting the spread of fire at protection facilities. Requirements for space-planning and design solutions
• SP 6.13130.2013 Fire protection systems. Electrical equipment. Fire safety requirements
• SP 7.13130.2013 Heating, ventilation and air conditioning. Fire safety requirements

• SP 165.1325800.2014 Engineering and technical measures for civil defense. Updated version of SNiP 2.01.51-90 (with Amendment No. 1)
• SP 223.1326000.2014 Railway telecommunications Rules for the use of station radio communications and two-way park communications
• SP 224.1326000.2014 Traction power supply for railways
• SP 225.1326000.2014 Station buildings, structures and devices
• SP 226.1326000.2014 Power supply of non-traction consumers Rules for design, construction and reconstruction

• Amendment No. 1 SP 108.13330.2012 Enterprises, buildings and structures for grain storage and processing Updated version of SNiP 2.10.05-85
• Amendment No. 1 SP 109.13330.2012 Refrigerators Updated edition of SNiP 2.11.02-87
• Amendment No. 1 SP 113.13330.2012 Parking lots Updated version of SNiP 02/21/99*
• Amendment No. 1 SP 13.13130.2009 Nuclear power plants Fire safety requirements
• Change No. 1 SP 14.13330.2014 Construction in seismic areas Updated version of SNiP II-7-81*
• Amendment No. 1 SP 141.13330.2012 Social service institutions for people with limited mobility Rules for calculation and placement
• Amendment No. 1 SP 142.13330.2012 Buildings of resocialization centers Design rules Updated version of SP 35-107-2003
• Amendment No. 1 SP 143.13330.2012 Premises for leisure and physical culture and recreational activities of people with limited mobility Design rules
• Change No. 1 SP 144.13330.2012 Centers and departments of geriatric care Design rules
• Amendment No. 1 SP 145.13330.2012 Boarding houses Design rules
• Change No. 1 SP 146.13330.2012 Gerontological centers, nursing homes, hospices Design rules
• Amendment No. 1 SP 147.13330.2012 Buildings for social service institutions Reconstruction rules
• Amendment No. 1 SP 148.13330.2012 Premises in social and medical care institutions Design rules
• Amendment No. 1 SP 149.13330.2012 Rehabilitation centers for children and adolescents with disabilities Design rules
• Amendment No. 1 SP 150.13330.2012 Boarding houses for disabled children Design rules
• Change No. 1 SP 19.13330.2011 Master plans of agricultural enterprises Updated version of SNiP II-97-76*
• Change No. 1 SP 28.13330.2012 Protection of building structures from corrosion Updated version of SNiP 2.03.11-85
• Change No. 1 SP 31.13330.2012 Water supply External networks and structures Updated version of SNiP 2.04.02-84
• Change No. 1 SP 59.13330.2012 Accessibility of buildings and structures for people with limited mobility Updated version of SNiP 01/35/2001
• Amendment No. 1 SP 63.13330.2012 Concrete and reinforced concrete structures. Basic provisions Updated edition of SNiP 52-01-2003
• Change No. 1 SP 90.13330.2012 Thermal power plants Updated version of SNiP II-58-75
• Change No. 1 SP 92.13330.2012 Warehouses of dry mineral fertilizers and chemical plant protection products Updated version of SNiP II-108-78
• Amendment No. 2 SP 31.13330.2012 Water supply External networks and structures Updated version of SNiP 2.04.02-84
• Change No. 2 SP 63.13330.2012 Concrete and reinforced concrete structures Basic provisions Updated edition of SNiP 52-01-2003
• SP 230.1325800.2015 Building enclosing structures Characteristics of thermal inhomogeneities
• SP 231.1311500.2015 Construction of oil and gas fields Fire safety requirements
• SP 232.1311500.2015 Fire protection of enterprises General requirements
• SP 233.1326000.2015 Railway transport infrastructure High-precision coordinate system
• SP 234.1326000.2015 Railway automation and telemechanics Rules for construction and installation
• SP 235.1326000.2015 Railway automation and telemechanics Design rules
• SP 236.1326000.2015 Acceptance and commissioning of railway infrastructure facilities
• SP 237.1326000.2015 Railway transport infrastructure General requirements
• SP 238.1326000.2015 Railway track
• SP 239.1326000.2015 Passenger information systems, warnings to those working on the tracks and park communications in railway transport
• SP 240.1311500.2015 Liquefied natural gas storage facilities Fire safety requirements
• SP 241.1311500.2015 Fire protection systems Automatic water fire extinguishing systems for high-rise rack warehouses Design standards and rules
• SP 242.1325800.2015 Buildings of territorial bodies of the Pension Fund of the Russian Federation Design rules
• SP 243.1326000.2015 Design and construction of low-traffic roads
• SP 244.1326000.2015 Cable lines of railway infrastructure facilities
• SP 245.1325800.2015 Corrosion protection of linear objects and structures in the oil and gas complex Rules for the production and acceptance of work

• SP 20.13330.2016 Loads and impacts. Updated version of SNiP 2.01.07-85* (with Amendment No. 1)
• SP 22.13330.2016 Foundations of buildings and structures. Updated version of SNiP 2.02.01-83*
• SP 246.1325800.2016 Regulations on designer's supervision over the construction of buildings and structures
• SP 264.1325800.2016 Light camouflage of populated areas and national economic facilities. Updated version of SNiP 2.01.53-84
• SP 30.13330.2016 Internal water supply and sewerage of buildings. Updated version of SNiP 2.04.01-85* (with Amendment)
• SP 42.13330.2016 Urban planning. Planning and development of urban and rural settlements. Updated version of SNiP 2.07.01-89*
• SP 47.13330.2016 Engineering surveys for construction. Basic provisions. Updated version of SNiP 11-02-96
• SP 52.13330.2016 Natural and artificial lighting. Updated version of SNiP 23-05-95*
• SP 60.13330.2016 Heating, ventilation and air conditioning. Updated version of SNiP 41-01-2003
• SP 72.13330.2016 Protection of building structures and structures from corrosion. Updated version of SNiP 3.04.03-85
• SP 73.13330.2016 Internal sanitary systems of buildings Updated version of SNiP 3.05.01-85
• SP 76.13330.2016 Electrical devices. Updated version of SNiP 3.05.06-85
• SP 93.13330.2016 Protective structures for civil defense in underground mine workings. Updated version of SNiP 2.01.54-84
• SP 94.13330.2016 Adaptation of municipal facilities for sanitary treatment of people, special treatment of clothing and rolling stock of vehicles. Updated version of SNiP 2.01.57-85
• SP 95.13330.2016 Concrete and reinforced concrete structures made of dense silicate concrete. Updated version of SNiP 2.03.02-86
• SP 96.13330.2016 "SNiP 2.03.03-85 Reinforced cement structures"

• SP 127.13330.2017 Landfills for the neutralization and disposal of toxic industrial waste. Basic provisions for design. SNiP 2.01.28-85
• SP 16.13330.2017 "Steel structures. Updated edition of SNiP II-23-81*" (with Amendment, with Change No. 1)
• SP 17.13330.2017 Roofs. Updated edition of SNiP II-26-76
• SP 382.1325800.2017 Glued wooden structures on glued rods. Calculation methods
• SP 71.13330.2017 Insulating and finishing coatings. Updated edition of SNiP 3.04.01-87 (with Amendment No. 1)

• SP 32.13330.2018 Sewerage. External networks and structures. SNiP 2.04.03-85
• SP 383.1325800.2018 Sports and recreation complexes. Design Rules
• SP 384.1325800.2018 Tent construction structures. Design Rules
• SP 385.1325800.2018 Protection of buildings and structures from progressive collapse. Design rules. Basic provisions
• SP 386.1325800.2018 Translucent polycarbonate structures. Design Rules
• SP 388.1311500.2018 Objects of cultural heritage for religious purposes. Fire safety requirements
• SP 390.1325800.2018 Buildings and structures of adaptive sports schools and adaptive sports centers. Design Rules
• SP 392.1325800.2018 Main and field pipelines for oil and gas. As-built documentation for construction. Forms and requirements for maintenance and registration
• SP 407.1325800.2018 Earthworks. Rules for production using hydromechanization
• SP 408.1325800.2018 Detailed seismic zoning and seismic microzoning for territorial planning

• SNiPs
  • Section 1. Organizational and methodological normative documents
    • 01. System of regulatory documents in construction
      • SNiP 1.01.01-82* System of regulatory documents in construction Basic provisions (with Amendments No. 1, 2)
    • 02. Organization, methodology and economics of design and engineering surveys
      • SNiP 1.02.01-85 Instructions on the composition, procedure for development, coordination and approval of design and estimate documentation for the construction of enterprises, buildings and structures (with Amendments No. 1, 2, 3)
      • SNiP 1.02.03-83 Instructions for the design of facilities for construction abroad
      • SNiP 1.02.07-87 Engineering surveys for construction
    • 03. Organization of construction. Construction management
    • 04. Design and construction duration standards
      • SNiP 1.04.03-85 Standards for construction duration and backlog in the construction of enterprise buildings and structures part 1-1
      • SNiP 1.04.03-85 Standards for construction duration and backlog in the construction of enterprise buildings and structures part 1-2
      • SNiP 1.04.03-85 Standards for construction duration and backlog in the construction of enterprise buildings and structures, part 2
    • 05. Construction Economics
      • SNiP 1.05.03-87 Backlog standards in housing construction, taking into account complex development
    • 06. Regulations on organizations and officials
      • SNiP 1.06.04-85 Regulations on the chief engineer (chief architect) of the project
      • SNiP 1.06.05-85 Regulations on designer’s supervision of design organizations over the construction of enterprises, buildings and structures (as amended)
    • 10. Standardization, regulation, certification
      • SNiP 10-01-2003 System of regulatory documents in construction Basic provisions
      • SNiP 10-01-94 System of regulatory documents in construction Basic provisions (with Amendments No. 1, 2)
    • 11. Engineering surveys for construction and design
      • SNiP 11-01-95 Instructions on the procedure for development, coordination, approval and composition of design documentation for the construction of enterprises, buildings and structures
      • SNiP 11-02-96 Engineering surveys for construction Basic provisions
      • SNiP 11-03-2001 Standard design documentation
      • SNiP 11-04-2003 Instructions on the procedure for development, coordination, examination and approval of urban planning documentation
    • 12. Production
      • SNiP 12-01-2004 Organization of construction
      • SNiP 12-03-2001 Labor safety in construction. Part 1. General requirements
      • SNiP 12-03-99 Labor safety in construction. Part 1. General requirements (With Amendment No. 1)
      • SNiP 12-04-2002 Labor safety in construction. Part 2. Construction production
    • 13. Operation
    • 14. Urban planning cadastre
      • SNiP 14-01-96 Basic provisions for the creation and maintenance of the state urban planning cadastre of the Russian Federation
    • 15. Architectural and urban planning activities
    • SNiP I-2 Construction terminology
  • Section 2. General technical regulatory documents
    • 01. General design standards
      • SNiP 2.01.01-82 Construction climatology and geophysics
      • SNiP 2.01.02-85* Fire safety standards
      • SNiP 2.01.07-85* Loads and impacts (with Amendments No. 1, 2)
      • SNiP 2.01.09-91 Buildings and structures in mined areas and planting soils
      • SNiP 2.01.14-83 Determination of design hydrological characteristics
      • SNiP 2.01.15-90 Engineering protection of the territories of buildings and structures from hazardous geological processes. Basic principles of design.
      • SNiP 2.01.28-85 Landfills for the neutralization and disposal of toxic industrial waste Basic design provisions
      • SNiP 2.01.51-90 Engineering and technical measures of civil defense
      • SNiP 2.01.53-84 Light camouflage of populated areas and national economic facilities
      • SNiP 2.01.54-84 Protective structures for civil defense in underground mine workings
      • SNiP 2.01.55-85 National economic facilities in underground mine workings
      • SNiP 2.01.57-85 Adaptation of municipal facilities for sanitary treatment of people, special treatment of rolling stock of vehicles
    • 02. Foundations and foundations
      • SNiP 2.02.01-83* Foundations of buildings and structures
      • SNiP 2.02.02-85* Foundations of hydraulic structures (with Amendment No. 1)
      • SNiP 2.02.03-85 Pile foundations
      • SNiP 2.02.04-88 Foundations and foundations on permafrost soils
      • SNiP 2.02.05-87 Foundations of machines with dynamic loads
    • 03. Building structures
      • SNiP 2.03.01-84* Concrete and reinforced concrete structures (with Amendments No. 1, 2)
      • SNiP 2.03.02-86 Concrete and reinforced concrete structures made of dense silicate concrete
      • SNiP 2.03.03-85 Reinforced cement structures
      • SNiP 2.03.04-84 Concrete and reinforced concrete structures intended for operation under conditions of exposure to elevated and high temperatures
      • SNiP 2.03.06-85 Aluminum structures
      • SNiP 2.03.09-85 Asbestos-cement structures
      • SNiP 2.03.11-85 Protection of building structures from corrosion
      • SNiP 2.03.13-88 Floors
    • 04. Engineering equipment of buildings and structures. External networks
      • SNiP 2.04.01-85* Internal water supply and sewerage of buildings
      • SNiP 2.04.02-84 (as amended 1 1986, amendment 2000) Water supply. External networks and structures
      • SNiP 2.04.03-85 Sewerage. External networks and structures (with Amendment No. 1)
      • SNiP 2.04.05-91 Heating, ventilation and air conditioning (with Amendments No. 1, 2, 3)
      • SNiP 2.04.07-86 Heating networks
      • SNiP 2.04.08-87* Gas ​​supply (with Amendments 1, 2, 3, 4)
      • SNiP 2.04.09-84 (as amended 1 1997) Fire automatics of buildings and structures
      • SNiP 2.04.12-86 Strength calculation of steel pipelines
      • SNiP 2.04.14-88 Thermal insulation of equipment and pipelines
    • 05. Transport structures
      • SNiP 2.05.02-85 Highways
      • SNiP 2.05.03-84* Bridges and pipes.
      • SNiP 2.05.06-85 (2000) Main pipelines
      • SNiP 2.05.07-91 (1996, as amended 1 1996) Industrial transport
      • SNiP 2.05.09-90 Tram and trolleybus lines
      • SNiP 2.05.11-83 (1984) On-farm roads in collective farms, state farms and other agricultural enterprises and organizations.
      • SNiP 2.05.13-90 Oil product pipelines laid in cities and other populated areas
    • 06. Hydraulic and energy structures, reclamation systems and structures
      • SNiP 2.06.01-86 (1988) Hydraulic structures. Design Basics
      • SNiP 2.06.03-85 Reclamation systems and structures.
      • SNiP 2.06.04-82* Loads and impacts on hydraulic structures (wave, ice and from ships).
      • SNiP 2.06.05-84* Dams made of soil materials.
      • SNiP 2.06.06-85 (1987) Concrete and reinforced concrete dams.
      • SNiP 2.06.07-87 Retaining walls, shipping locks, fish passages and fish protection structures.
      • SNiP 2.06.08-87 Concrete and reinforced concrete structures of hydraulic structures.
      • SNiP 2.06.09-84 Hydraulic tunnels (replaces SN 238-73)
      • SNiP 2.06.14-85 (1989) Protection of mine workings from ground and surface waters
      • SNiP 2.06.15-85 Engineering protection of the territory from flooding and flooding
    • 07. Planning and development of settlements
      • SNiP 2.07.01-89* Urban planning. Planning and development of urban and rural settlements
    • 08. Residential and public buildings
      • SNiP 2.08.01-89 Residential buildings
      • SNiP 2.08.02-89 Public buildings and structures
    • 09. Industrial enterprises, industrial buildings and structures, auxiliary buildings. Inventory buildings
      • SNiP 2.09.02-85 Industrial buildings
      • SNiP 2.09.03-85 Constructions of industrial enterprises.
      • SNiP 2.09.04-87 (2000) Administrative and domestic buildings
    • 10. Agricultural enterprises, buildings and structures
      • SNiP 2.10.02-84 (as amended 1 2000) Buildings and premises for processing and storage of agricultural products
      • SNiP 2.10.03-84 (as amended 1 2000) Livestock poultry and fur farming buildings and premises
      • SNiP 2.10.04-85 (as amended 1 2000) Greenhouses and greenhouses
      • SNiP 2.10.05-85 (1988, as amended 1 2000) Enterprises, buildings and structures for grain storage and processing.
    • 11. Warehouses
      • SNiP 2.11.01-85* Warehouse buildings
      • SNiP 2.11.02-87 (as amended 1 2000) Refrigerators
      • SNiP 2.11.03-93 Oil and petroleum products warehouses. Fire regulations
      • SNiP 2.11.04-85 Underground storage facilities for oil, petroleum products and liquefied gases
      • SNiP 2.11.06-91 Warehouses of forest materials. Fire safety design standards (replaces SN 473-75)
    • 12. Land allocation norms
    • 20. Basic provisions for the reliability of building structures
    • 21. Fire safety
      • SNiP 21-01-97* Fire safety of buildings and structures (with Amendments No. 1, 2)
      • SNiP 21-02-99 Parking lots
      • SNiP 03/21/2003 Warehouses of forest materials. Fire regulations
    • 22. Protection from dangerous geophysical influences
      • SNiP 22-01-95 Geophysics of hazardous natural influences
      • SNiP 02/22/2003 Engineering protection of territories, buildings and structures from hazardous geological processes. Basic provisions
    • 23. Indoor climate and protection from harmful influences
      • SNiP 23-01-99* Construction climatology (with Amendment No. 1)
      • SNiP 02/23/2003 Thermal protection of buildings
      • SNiP 23-03-2003 Noise protection
      • SNiP 23-05-95 Natural and artificial lighting (with Amendment No. 1)
    • 24. Size interchangeability and compatibility
    • SNiP II-108-78 Warehouses for dry mineral fertilizers and chemical plant protection products
    • SNiP II-11-77* Protective structures for civil defense
    • SNiP II-12-77 Noise protection
    • SNiP II-22-81 (1995) Stone and reinforced masonry structures
    • SNiP II-23-81* Steel structures (as amended, as amended)
    • SNiP II-25-80 (1988) Wooden structures
    • SNiP II-26-76 Roofs (as amended)
    • SNiP II-3-79* Construction heating engineering (with Amendments No. 1-4)
    • SNiP II-35-76* Boiler installations
    • SNiP II-44-78 Railway and road tunnels
    • SNiP II-58-75 Thermal power plants
    • SNiP II-7-81* Construction in seismic areas
    • SNiP II-89-80* General plans for industrial enterprises
    • SNiP II-90-81 Industrial buildings of industrial enterprises
    • SNiP II-94-80 Underground mine workings
    • SNiP II-97-76 General plans for agricultural enterprises
    • SNiP II-A.3-62 Classification of buildings and structures. Design Basics
    • SNiP II-V.8-71 Floors. Design standards
    • SNiP II-K.2-62 Planning and development of populated areas. Design standards
  • Section 3. Regulatory documents on urban planning, buildings and structures
    • 01. General rules of construction production
      • SNiP 3.01.01-85* Organization of construction production (with Amendments No. 1, 2)
      • SNiP 3.01.03-84 Geodetic work in construction
      • SNiP 3.01.04-87 Acceptance into operation of completed construction facilities
      • SNiP 3.01.09-84 Acceptance into operation of completed protective structures and their maintenance in peacetime (instead of SN 464-74)
    • 02. Foundations and foundations
      • SNiP 3.02.01-87 Earthworks, bases and foundations
      • SNiP 3.02.03-84 Underground mine workings
    • 03. Building structures
      • SNiP 3.03.01-87 Load-bearing and enclosing structures
    • 04. Protective, insulating and finishing coatings
      • SNiP 3.04.01-87 Insulating and finishing coatings
      • SNiP 3.04.03-85 Protection of building structures and structures from corrosion
    • 05. Engineering and technological equipment and networks
      • SNiP 3.05.01-85 Internal sanitary systems (with Amendment No. 1)
      • SNiP 3.05.02-88* Gas ​​supply (with Amendments 1 and 2)
      • SNiP 3.05.03-85 Heating networks
      • SNiP 3.05.04-85* External networks and water supply and sewerage structures
      • SNiP 3.05.05-84 Process equipment and process pipelines
      • SNiP 3.05.06-85 Electrical devices
      • SNiP 3.05.07-85 (as amended 1 1990) Automation systems
    • 06. Transport structures
      • SNiP 3.06.03-85 Highways
      • SNiP 3.06.04-91 Bridges and pipes
      • SNiP 3.06.07-86 Bridges and pipes Rules for inspection and testing
    • 07. Hydraulic and energy structures, reclamation systems and structures
      • SNiP 3.07.01-85 River hydraulic structures
      • SNiP 3.07.02-87 Hydraulic sea and river transport structures
      • SNiP 3.07.03-85 (as amended 1 1991) Reclamation systems and structures
    • 08. Mechanization of construction production
      • SNiP 3.08.01-85 Mechanization of construction production. Rail tracks for tower cranes
    • 09. Production of building structures, products and materials
      • SNiP 3.09.01-85 (as amended 1 1988, 2 1994) Production of prefabricated reinforced concrete structures and products
    • 30. Urban planning
      • SNiP 30-02-97* Planning and development of territories of gardening dacha associations of citizens, buildings and structures (with Amendment No. 1)
    • 31. Residential, public and industrial buildings and structures
      • SNiP 01/31/2003 Residential multi-apartment buildings
      • SNiP 02/31/2001 Single-apartment residential houses
      • SNiP 31-03-2001 Industrial buildings
      • SNiP 31-04-2001 Warehouse buildings
      • SNiP 05/31/2003 Public buildings for administrative purposes
      • SNiP 06/31/2009 Public buildings and structures
    • 32. Transport structures
      • SNiP 32-01-95 1520 mm gauge railways
      • SNiP 02/32/2003 Subways
      • SNiP 32-03-96 Aerodromes
      • SNiP 32-04-97 Railway and road tunnels
    • 33. Hydraulic and reclamation structures
      • SNiP 01/33/2003 Hydraulic structures. Basic provisions
    • 34. Main and field pipelines
      • SNiP 34-02-99 Underground storage facilities for gas, oil and their products
    • 35. Ensuring an accessible living environment for people with disabilities and other groups of the population with limited mobility
      • SNiP 35-01-2001 Accessibility of buildings and structures for people with limited mobility
    • SNiP III-10-75 Landscaping
    • SNiP III-18-75 (as amended 1978, 1985, 1995) Metal structures
    • SNiP III-24-75 Industrial furnaces and brick pipes
    • SNiP III-39-76 Tram tracks
    • SNiP III-4-80* Safety precautions in construction (With Amendments 1-5)
    • SNiP III-41-76 Contact networks for electrified transport
    • SNiP III-42-80 (as amended in 1983, 1987, 1997) Main pipelines
    • SNiP III-44-77 (as amended in 1981) Railway, road and hydraulic tunnels. Subways
    • SNiP III-46-79 Aerodromes
    • SNiP III-V.5-62* Metal structures. Rules for manufacturing, installation and acceptance
  • Section 4. Regulatory documents for engineering equipment of buildings and structures and external networks
    • 40. Water supply and sewerage
    • 41. Heat supply, heating, ventilation and air conditioning
      • SNiP 41-01-2003 Heating, ventilation and air conditioning
      • SNiP 41-02-2003 Heating networks
      • SNiP 41-03-2003 Thermal insulation of equipment and pipelines. (replaced SNiP 2.04.14-88 (1998))
    • 42. Gas supply
      • SNiP 42-01-2002 Gas distribution systems
    • SNiP 4.02-91 Basic estimate standards and prices. Collections of estimate standards and prices for construction work
    • SNiP 4.03-91 Collection of estimated standards and prices for the operation of construction machines
    • SNiP 4.04-91 Collection of estimated prices for materials, products and structures
    • SNiP 4.05-91 General provisions for the application of estimate standards and prices for construction work
    • SNiP 4.06-91 Collections of prices for equipment installation
    • SNiP 4.07-91 Collection of estimated standards for additional costs during construction and installation work in winter
    • SNiP 4.09-91 Collection of estimated cost standards for the construction of temporary buildings and structures
    • SNiP IV-13-84 Collections of estimated cost standards for equipment and inventory of public and administrative buildings
    • SNiP IV-2-82 Collection of elemental estimate standards for building structures and work
  • Section 5. Regulatory documents for building structures and products
    • 01. Material consumption standards
      • SNiP 5.01.01-82 Consumption standards for materials, products and pipes per 1 million rubles. estimated cost of construction and installation work. Municipal construction. Consumer services for the population
      • SNiP 5.01.02-83 Consumption standards for materials, products and pipes per 1 million rubles. estimated cost of construction and installation work. Microbiological industry. Medical industry. Geology and subsoil exploration. Film industry (instead of SN 501-77, SN 520-79,
      • SNiP 5.01.03-85 Consumption standards for materials, products and pipes per 1 million rubles. estimated cost of construction and installation work on gas industry facilities (instead of SN 505-78, SN 526-80 in terms of pipe consumption)
      • SNiP 5.01.04-84 Consumption standards for materials, products and pipes per 1 million rubles. estimated cost of construction and installation work. Chemical industry. Petrochemical industry (instead of SN 424-78, SN 526-80)
      • SNiP 5.01.05-85 Consumption standards for materials, products and pipes per 1 million rubles. estimated cost of construction and installation work on water management construction projects
      • SNiP 5.01.06-86 Consumption standards for materials, products and pipes per 1 million rubles. estimated cost of construction and installation work on electric power facilities
      • SNiP 5.01.07-84 Consumption standards for materials, products and pipes per 1 million rubles. estimated cost of construction and installation work for oil production, oil refining and oil and petroleum products transport facilities (instead of SN 504-78, SN-505-78, SN 526
      • SNiP 5.01.08-84 Consumption standards for materials, products and pipes per 1 million rubles. estimated cost of construction and installation work. Building materials industry, construction, building structures and parts industry
      • SNiP 5.01.09-84 Consumption standards for materials, products and pipes per 1 million rubles. estimated cost of construction and installation work. Trade and catering. Printing industry. River transport. Meat and dairy industry. Flour and cereals
      • SNiP 5.01.10-84 Consumption standards for materials, products and pipes per 1 million rubles. estimated cost of construction and installation work on forestry and woodworking, pulp and paper industry and forestry facilities (instead of SN 501-77, SN 415-78, SN 526-80
      • SNiP 5.01.11-85 Consumption standards for materials, products and pipes per 1 million rubles. estimated cost of construction and installation work on ferrous metallurgy facilities
      • SNiP 5.01.12-85 Consumption standards for materials, products and pipes per 1 million rubles. estimated cost of construction and installation work on mechanical engineering projects
      • SNiP 5.01.13-85 Consumption standards for materials, products and pipes per 1 million rubles. estimated cost of construction and installation work for light, food and fishing industries
      • SNiP 5.01.14-85 Consumption standards for materials, products and pipes per 1 million rubles. estimated cost of construction and installation works for non-ferrous metallurgy, coal, peat and shale industries
      • SNiP 5.01.16-85 Consumption standards for materials, products and pipes per 1 million rubles. estimated cost of construction and installation work on agricultural construction projects
      • SNiP 5.01.17-85 Consumption standards for materials, products and pipes per 1 million rubles. estimated cost of construction and installation work on railway, air, sea, road transport, highway and subway construction facilities
      • SNiP 5.01.18-86 Regulations on production regulation of material consumption in construction
      • SNiP 5.01.23-83 Standard norms for cement consumption for the preparation of concrete, prefabricated and monolithic concrete, reinforced concrete products and structures
    • 02. Standards for the need for construction equipment, tools and mechanisms
      • SNiP 5.02.02-86 Standards for the need for construction tools
    • 03. Rationing and payment for design and survey work
    • 04. Rationing and remuneration of labor in construction
    • 50. Foundations and foundations of buildings and structures
    • 51. Stone and reinforced stone structures
    • 52. Reinforced concrete and concrete structures
      • SNiP 52-01-2003 Concrete and reinforced concrete structures. Basic provisions
    • 53. Metal structures
    • 54. Wooden structures
    • 55. Structures made of other materials
    • 56. Windows, doors, gates and fittings for them
  • Section 8. Regulatory documents on economics
    • 82. Material and fuel and energy resources
      • SNiP 82-01-95 Development and application of norms and standards for the consumption of material resources in construction. Basic provisions
      • SNiP 82-02-95 Federal (standard) elemental standards for cement consumption in the manufacture of concrete and reinforced concrete products and structures

SP 30.13330.2012 Internal water supply and sewerage of buildings Updated version of SNiP 2.04.01-85*

SET OF RULES

SP 30.13330.2012 Internal water supply and sewerage of buildings.
Domestic water supply and drainage systems in buildings
Updated edition

Date of introduction 2013-01-01

Status: partially canceled since June 17, 2017,
except for items
included in the List of national standards
and sets of rules

Reference.

On June 17, 2017, by order of the Ministry of Construction and Housing and Communal Services of the Russian Federation dated December 16, 2016 N 951/pr, the updated version came into force.

PREFACE

The goals and principles of standardization in the Russian Federation are established by Federal Law No. 184-FZ of December 27, 2002 “On Technical Regulation”, and the development rules are established by Decree of the Government of the Russian Federation of November 19, 2008 No. 858 “On the procedure for the development and approval of sets of rules "

Rulebook Details

1 CONTRACTORS - OJSC SantekhNIIproekt, OJSC Scientific Research Center Construction

2 INTRODUCED by the Technical Committee for Standardization TC 465 “Construction”

3 PREPARED for approval by the Department of Architecture, Construction and Urban Development Policy

4 APPROVED by order of the Ministry of Regional Development of the Russian Federation (Ministry of Regional Development of Russia) dated December 29, 2011 No. 626 and put into effect on January 1, 2013.

5 REGISTERED by the Federal Agency for Technical Regulation and Metrology (Rosstandart). Revision of SP 30.13330.2010 “Internal water supply and sewerage of buildings”

Information about changes to this set of rules is published in the annually published information index “National Standards”, and the text of changes and amendments is published in the monthly published information index “National Standards”. In case of revision (replacement) or cancellation of this set of rules, the corresponding notice will be published in the monthly published information index “National Standards”. Relevant information, notices and texts are also posted in the public information system - on the official website of the developer (Ministry of Regional Development of Russia) on the Internet

4.2 The preparation of hot water should be provided in accordance with the standards for heating networks SP 124.13330. 4.3 In buildings of any purpose erected in sewerage areas, internal water supply and sewerage systems should be provided. The quality of wastewater after treatment in local installations must comply with the technical conditions for receiving it in the external sewerage network and departmental standards. 4.4 In non-sewered areas of populated areas, internal water supply systems with the installation of local apartment and/or collective drinking water purification systems and sewerage systems with the installation of local treatment facilities should be provided in residential buildings with a height of more than two floors, hotels, boarding homes for the disabled and elderly, hospitals, maternity hospitals, clinics, outpatient clinics, dispensaries, sanitary and epidemiological stations, sanatoriums, rest homes, boarding houses, sports and recreational institutions, preschool educational institutions, boarding schools, institutions of primary and secondary vocational education, secondary schools, cinemas, clubs and leisure and entertainment institutions, catering establishments, sports facilities, bathhouses and laundries. Notes: According to the design assignment, it is allowed to install internal water supply and sewerage systems in unsewered areas of populated areas for one- and two-story residential buildings. In production and auxiliary buildings, internal water supply and sewerage systems may not be provided in cases where the enterprise does not have a centralized water supply and the number of employees is no more than 25 people. per shift. In buildings equipped with internal drinking water supply or industrial water supply, it is necessary to provide an internal sewerage system. 4.5 In non-sewered areas of settlements, in agreement with local authorities of Rospotrebnadzor, it is allowed to equip the following buildings with backlash closets or dry closets (without installing water supply inlets): production and auxiliary buildings of industrial enterprises with the number of employees up to 25 people per shift; residential buildings 1 - 2 floors high; dormitories with a height of 1 - 2 floors for no more than 50 people; physical education and recreational facilities with no more than 240 seats, used only in the summer; club and leisure and entertainment institutions; open planar sports facilities; catering establishments with no more than 25 seats. Notes: Backlash closets may be installed in buildings in climatic regions I - III. Methods for disposing of the contents of backlash closets and dry closets are determined by the project according to the technical conditions of local utilities. 4.6 The need to install internal drains is established by the architectural and construction part of the project. 4.7 Pipes, fittings, equipment and materials used in the installation of internal systems of cold and hot water supply, sewerage and drains must comply with the requirements of these norms, national standards, sanitary and epidemiological norms and other documents approved in the prescribed manner. To transport and store drinking water, pipes, materials and anti-corrosion coatings should be used that have passed sanitary and epidemiological examination and have the appropriate permits and certificates for use in domestic and drinking water supply. Determination of estimated water and waste flow rates 4.8 For hydraulic calculation of water pipelines and selection of equipment, the following estimated flow rates of hot and cold water should be used: daily water consumption (total, hot, cold), for the estimated time of water consumption, for which the average hourly consumption is established, m 3 / day; maximum hourly water consumption (total, hot, cold), m 3 /h; minimum hourly water consumption (total, hot, cold), m 3 /h; maximum second water consumption (total, hot, cold), l/s. Notes: 4.9 Estimated water flow rates in cold water pipelines should be determined depending on: a) specific average hourly water consumption, l/h, related to one consumer or sanitary fixture; b) the type and total number of water consumers and/or the type and total number of sanitary fixtures (for the water supply system as a whole or for individual sections of the design scheme of the water supply network). If the number of sanitary fixtures (water collection points) is unknown, it is allowed to take the number of fixtures equal to the number of consumers. 4.10 Estimated water flow rates in hot water pipelines should be determined: for water withdrawal mode - similar to 4.2 a), b) taking into account the residual circulation flow in the areas from the place of heating to the place of the first water withdrawal; for circulation mode - in thermal-hydraulic calculation. 4.11 For risers of sewerage systems, the calculated flow rate is the maximum second flow rate of wastewater from sanitary fixtures connected to the riser, which does not cause the breakdown of hydraulic valves of any types of sanitary fixtures (wastewater receivers). This flow rate should be determined as the sum of the calculated maximum second flow rate of water from all sanitary fixtures, determined from the appendix table, and the calculated maximum second flow rate from the device with maximum drainage (as a rule, the maximum second flow rate from the toilet flush cistern should be taken equal to 1 .6 l/s). 4.12 For horizontal outlet pipelines of sewerage systems, the calculated flow rate should be considered the flow rate q sL, l/s, the value of which is calculated depending on the number of sanitary fixtures N, connected to the design section of the pipeline, and the length of this section of the pipeline L, m, according to the formula where is the total maximum hourly water flow in the design area, m 3 /h; K S- coefficient accepted by ; Estimated maximum wastewater flow, l/s, from a device with maximum water removal. Table 1. SP 30.13330.2012 Internal water supply and sewerage of buildings updated current edition Values K S depending on the number of devices N and length of the outlet pipeline Length of outlet (horizontal) pipeline, m Note. The length of the outlet pipeline should be taken as the distance from the last riser in the design section to the nearest connection of the next riser or, in the absence of such connections, to the nearest sewer well. 5 Plumbing system 5.1 Quality and temperature of water in the water supply system 5.1.1 The quality of cold and hot water (sanitary and epidemiological indicators) supplied for household and drinking needs must comply with SanPiN 2.1.4.1074 and SanPiN 2.1.4.2496. The quality of water supplied for production needs is determined by the design specifications (technological requirements). 5.1.2 The temperature of hot water in water supply points must comply with the requirements of SanPiN 2.1.4.1074 and SanPiN 2.1.4.2496 and, regardless of the heat supply system used, must be no lower than 60°C and no higher than 75°C. Note. The requirement of this paragraph does not apply to places of water collection for production (technological) needs, as well as to places of water collection for the needs of service personnel of these institutions. 5.1.3 In the premises of preschool institutions, the temperature of hot water supplied to the water fittings of showers and washbasins should not exceed 37°C. 5.1.4 The choice of hot water preparation scheme and, if necessary, its treatment should be carried out in accordance with SP 124.13330. 5.1.5 In hot water supply systems of public catering establishments and others, whose consumers require water at a temperature higher than that specified in, additional heating of water should be provided in local water heaters. 5.1.6 In populated areas and enterprises, in order to save potable quality water, with a feasibility study and in agreement with Rospotrebnadzor authorities, it is allowed to supply non-potable quality water to urinals and toilet flush tanks. 5.2 Cold and hot water systems 5.2.1 Cold water supply systems can be centralized or local. The choice of a building's internal water supply system (centralized or local) should be made depending on sanitary, hygienic and fire safety requirements, production technology requirements, as well as taking into account the adopted external water supply scheme. A hot water supply system should, as a rule, have a closed water supply with the preparation of hot water in heat exchangers and water heaters (water-water, gas, electric, solar, etc.). According to the design assignment, it is allowed to provide a hot water supply system in the building with an open (directly from the heating network) water supply. 5.2.2 In buildings (structures), depending on their purpose, internal water supply systems should be provided: The fire-fighting water supply system in buildings with drinking water or industrial water supply systems should, as a rule, be combined with one of them, provided that the requirements of SP 10.13130 ​​and this set of rules are met: utility and drinking water supply with fire-fighting water supply (service and fire-fighting water supply); industrial water supply with fire-fighting water supply (industrial and fire-fighting water supply); Networks of cold and hot drinking water supply systems are not allowed to be combined with networks of water supply systems supplying water of non-drinking quality. 5.2.3 Internal water supply systems (domestic and drinking, hot water supply, industrial, fire protection) include: inputs to buildings, metering units for cold and hot water consumption, distribution network, risers, connections to sanitary fixtures and technological installations, water supply, mixing, shut-off and control valves . Depending on local conditions and production technology, it is allowed to provide spare (battery) and control tanks in the internal water supply system. 5.2.4 The choice of heating and water treatment scheme for centralized hot water supply systems should be provided in accordance with SP 124.13330. 5.2.5 In centralized hot water supply systems, if it is necessary to maintain water temperature in places where water is drawn at least as specified, a hot water circulation system should be provided during the period when water is not drawn. In hot water supply systems with time-regulated hot water consumption, hot water circulation may not be provided if its temperature at the water supply points does not drop below the established one. 5.2.6 Heated towel rails installed in bathrooms and shower rooms to maintain a given air temperature in them in accordance with SP 60.13330 and SanPiN 2.1.2.2645 should be connected to the supply pipelines of the hot water supply system or to the consumer's power supply system. When justified, heated towel rails may be connected to the circulation pipes of the hot water supply system, provided that a shut-off valve and a closing section are installed. 5.2.7 In residential and public buildings with a height of more than 4 floors, water risers should be combined by ring jumpers into sectional units with each water outlet connected by one circulation pipeline to the combined circulation pipeline of the system. From three to seven water risers should be combined into sectional units. Ring jumpers should be laid: in a warm attic, in a cold attic if the pipes are thermally insulated, under the ceiling of the upper floor when supplying water to the water risers from below, or in the basement when supplying water to the risers from above. 5.2.8 In a hot water supply system, connecting water taps to circulation pipelines is not allowed. 5.2.9 Pipelines of hot water supply systems, except for connections to appliances, should be insulated to protect against heat loss. Pipelines of the cold water supply system (except for dead-end fire risers) laid in channels, shafts, sanitary cabins, tunnels, as well as in rooms with high humidity, should be insulated to prevent moisture condensation in accordance with SP 61.13330. 5.2.10 The hydrostatic pressure in the drinking water or fire-fighting water supply system at the level of the lowest located sanitary fixture should be no more than 0.45 MPa (for buildings designed in existing buildings no more than 0.6 MPa), at the level of the highest located devices - according to the passport data of these devices, and in the absence of such data, not less than 0.2 MPa. In the fire-fighting water supply system, during fire extinguishing, it is allowed to increase the pressure to 0.6 MPa at the level of the lowest located sanitary fixture. In a two-zone fire-fighting water supply system (in schemes with overhead piping), in which fire risers are used to supply water to the upper floor, the hydrostatic pressure should not exceed 0.9 MPa at the level of the lowest located sanitary fixture. 5.2.11 When the design pressure in the network exceeds the pressure specified in the pressure, it is necessary to provide devices (pressure regulators) that reduce the pressure. Pressure regulators installed in the drinking water supply system must provide after themselves the design pressure both in static and dynamic modes of operation of the system. In buildings where the design water pressure of sanitary fixtures, water taps and mixing fittings exceeds the permissible values ​​specified in, it is allowed to use fittings with built-in water flow regulators. 5.3 Fire water systems 5.3.1 For residential, public, as well as administrative buildings of industrial enterprises, as well as for industrial and warehouse buildings, the need to install an internal fire-fighting water supply system, as well as the minimum water consumption for fire extinguishing, should be determined in accordance with the requirements of SP 10.13130. 5.3.2 For integrated fire-fighting water supply systems, the pipeline networks should be taken according to the highest calculated water flow and pressure: for water consumption needs in accordance with this set of rules; for fire extinguishing needs in accordance with SP 10.13130. 5.4 Cold and hot water networks 5.4.1 Cold water supply networks should be: dead-end, if a break in the water supply is allowed and the number of fire hydrants is less than 12; ring or with looped inputs with two dead-end pipelines with branches to consumers from each of them to ensure a continuous supply of water; ring fire risers for a combined service and fire water supply system in buildings with a height of 6 floors or more. At the same time, to ensure the replacement of water in the building, it is necessary to provide for a ringing of fire risers with one or several water risers with the installation of shut-off valves. 5.4.2 Two or more inputs should be provided for buildings: 5.4.3 When installing two or more inlets, provision should be made for connecting them, as a rule, to different sections of the outer ring water supply network. Shut-off devices should be installed between inputs to the building on the external network to ensure water supply to the building in the event of an accident in one of the network sections. 5.4.4 If it is necessary to install pumps in a building to increase pressure in the internal water supply network, the inlets must be combined in front of the pumps with the installation of shut-off valves on the connecting pipeline to ensure water supply to each pump from any inlet. When installing independent pumping units at each input, there is no need to combine inputs. 5.4.5 It is necessary to provide for the installation of check valves at water supply inlets if several inlets are installed on the internal water supply network, having measuring devices and interconnected by pipelines inside the building. The horizontal clear distance between the inlets of the drinking water supply system and the outlets of the sewerage system or drains should be taken at least: 1.5 m - with an inlet pipeline diameter of up to 200 mm inclusive; 3 m - with an input pipeline diameter of more than 200 mm. Joint installation of water supply inlets for various purposes is allowed. 5.4.6 On the inlet pipelines, stops should be provided at pipe turns in the vertical or horizontal plane, when the resulting forces cannot be absorbed by the pipe connections. 5.4.7 The intersection of the input pipeline with the walls of the building should be carried out: in dry soils - with a gap of 0.2 m between the pipeline and building structures and sealing the hole in the wall with waterproof and gas-tight (in gasified areas) elastic materials, in wet soils - with the installation of oil seals. 5.4.8 The laying of distribution networks of cold and hot water supply pipelines in residential and public buildings should be provided in undergrounds, basements, technical floors and attics, and in the absence of attics - on the ground floor in underground channels together with heating pipelines or under the floor with a removable covering device, and also on building structures where open laying of pipelines is allowed, or under the ceiling of non-residential premises on the upper floor. 5.4.9 Water risers and cold and hot water inlets into apartments and other premises, as well as shut-off valves, measuring instruments, and regulators should be placed in communication shafts with the installation of special technical cabinets that provide free access to them for technical personnel. The laying of risers and wiring may be provided in shafts, openly - along the walls of showers, kitchens and other similar premises, taking into account the placement of the necessary shut-off, regulating and measuring devices. For premises with high finishing requirements, and for all networks with pipelines made of polymeric materials (except for pipelines in sanitary facilities), hidden installation should be provided. Hidden installation of steel pipelines connected with threads (with the exception of elbows for connecting wall-mounted water fittings) without access to the butt joints is not permitted. 5.4.10 The laying of water supply networks inside industrial buildings, as a rule, should be provided open - along trusses, columns, walls and under ceilings. It is allowed to provide for the placement of water pipelines in common channels with other pipelines, except for pipelines transporting flammable, combustible or toxic liquids and gases. The joint laying of utility and drinking water pipelines with sewerage pipelines may be provided in through channels, while the sewerage pipelines should be placed below the water supply system. Water pipelines may be laid in special channels during a feasibility study and according to design instructions. Pipelines supplying water to process equipment may be laid in the floor or under the floor, with the exception of basements. 5.4.11 When installed together in channels with pipelines transporting hot water or steam, the cold water supply network must be placed below these pipelines with a thermal insulation device. 5.4.12 The laying of pipelines should be provided with a slope of at least 0.002; for justification, a slope of 0.001 is allowed. 5.4.13 Pipelines, except for fire risers, laid in channels, shafts, cabins, tunnels, as well as in rooms with high humidity, should be insulated from moisture condensation. 5.4.14 The installation of year-round internal cold water supply should be provided in rooms with air temperatures above 2°C in winter. When laying pipelines in rooms with air temperatures below 2°C, it is necessary to take measures to protect pipelines from freezing (electric heating or thermal support). If it is possible to temporarily reduce the room temperature to 0°C or lower, as well as when laying pipes in the zone influenced by external cold air (near external entrance doors and gates), thermal insulation of the pipes should be provided. 5.4.15 Air release devices should be provided at the highest points of the pipelines of hot water supply systems. The release of air from the pipeline system is allowed through water fittings located at the highest points of the system (upper floors). Drainage devices should be provided at the lowest points of pipeline systems, except in cases where water dispensing fittings are provided at these points. 5.4.16 When designing hot water supply networks, measures should be taken to compensate for temperature changes in pipe length. 5.4.17 Thermal insulation should be provided for supply and circulation pipelines of hot water supply systems, except for connections to water taps. 5.4.18 Pressure losses in sections of pipelines of cold and hot water supply networks, including when combining risers into water supply units, should be determined taking into account the roughness of the pipe material and the viscosity of water. 5.5 Calculation of the cold water supply network 5.5.1 Hydraulic calculations of cold water water supply networks must be made based on maximum second water flow rates. Hydraulic calculation of cold water pipelines includes: determination of estimated water flow rates, selection of diameters of supply pipelines, ring jumpers and risers, pressure losses and establishment of normalized free pressure at control points of water collection. For groups of buildings for which hot water is prepared and/or water pressure is increased in separate (or internal) pumping stations and heating points, the determination of the estimated water flow rates and hydraulic calculations of pipelines should be carried out in accordance with these standards. 5.5.2 Networks of combined utility-fire-fighting and industrial-fire-fighting water supply systems must be checked to pass the calculated water flow for fire extinguishing at the calculated maximum second flow for household, drinking and production needs. At the same time, water costs for using showers, washing floors, and watering the territory are not taken into account. Hydraulic calculation of water supply networks is carried out for design diagrams of ring networks without excluding any sections of the network, risers or equipment. Note. For residential areas, during fire extinguishing and liquidation of an emergency on the external water supply network, it is allowed not to provide water supply to a closed hot water supply system. 5.5.3 When calculating utility, drinking and industrial networks, including those combined with a fire water supply system, it is necessary to ensure the necessary water pressure for devices located highest and furthest from the input. 5.5.4 Hydraulic calculations of water supply networks fed by several inputs should be made taking into account the shutdown of one of them. With two inputs, each of them must be designed for 100% water flow. 5.5.5 The diameters of the pipes of internal water supply networks should be taken based on the use of the maximum guaranteed water pressure in the external water supply network. The diameters of the ring jumper pipelines should be no less than the larger diameter of the water riser. 5.5.6 The speed of water movement in pipelines of internal networks should not exceed 1.5 m/s, with the throughput of pipelines of integrated economic-fire-fighting and industrial-fire-fighting systems being checked at a speed of 3 m/s. The diameters of the pipelines of water risers in the water distribution unit should be selected according to the calculated maximum second water flow in the riser with a coefficient of 0.7. 5.6 Calculation of the hot water supply network 5.6.1 Hydraulic calculations of hot water circulation systems should be made for two water supply modes (water withdrawal and circulation): a) determination of the calculated second water consumption, selection of the diameters of the supply pipelines and determination of pressure losses along the supply pipelines in water collection mode; b) selection of diameters of circulation pipelines, determination of the required circulation flow per second and linking pressure losses along individual rings of hot water supply networks in circulation mode. 5.6.2 The selection of the diameters of the supply pipelines of hot water supply networks in water withdrawal mode should be carried out at the calculated maximum second flow of hot water with the coefficient K circus, which takes into account the residual circulation flow in water collection mode. The coefficient K circus should be taken: 1.1 - for water heaters and sections of supply pipelines of hot water supply networks to the last water outlet of the main settlement branch; 1.0 - for other sections of supply pipelines. In the minimum water withdrawal mode at night, the value of the circulation flow of hot water should be taken equal to 30 - 40% of the calculated average second water flow. 5.6.3 The diameters of the water risers in the water distribution unit should be selected according to the estimated maximum second water flow rate in the riser with a coefficient of 0.7, provided that the length of the ring jumpers from the place of the last water withdrawal (along the direction of water movement) of one water riser to a similar point in another water riser does not exceed the length of the water riser itself. The diameters of the ring jumpers should be no less than the maximum diameter of the water riser. 5.6.4 In networks of open hot water withdrawal from pipelines of the heating network, pressure losses should be determined taking into account the pressure in the return pipeline of the heating network. 5.6.5 The circulation flow in hot water supply networks should be determined: when the circulation flow is distributed in proportion to heat loss (due to the variable resistance of the circulation risers) - by the sum of heat losses of the supply pipelines and the temperature difference from the outlet of the heater to the point of water selection. Changing the resistance of circulation risers must be done by selecting their diameter, using balancing valves, automatic control devices and throttling diaphragms (diameter of at least 10 mm). 5.6.6 If there is a ring jumper between the water risers, when calculating the heat loss of the water distribution unit, the heat loss of the pipelines of the ring jumper is taken into account. 5.6.7 Pressure losses in circulation mode in individual branches of the hot water supply system (including circulation pipelines) should not differ for different branches by more than 10%. 5.6.8 The speed of movement of hot water in the pipelines of the hot water supply system should not exceed 1.5 m/s. 6 Additional requirements for internal water supply networks in special natural and climatic conditions 6.1 Collapsed soils 6.1.1 It is recommended to place water supply pipelines inside the building above the floor level of the first or basement floors with an open installation accessible for inspection and repair. 6.1.2 The installation of water supply inlets and the laying of pipelines under the floor inside the building under type II soil conditions should be provided in waterproof channels with a slope towards the control wells. The length of waterproof channels at the entrances to buildings from the outer edge of the building foundation to the control well must be taken depending on the thickness of the subsidence soil layer and the diameters of the pipelines.

1 area of ​​use

1.1 This set of rules applies to the designed and reconstructed internal systems of cold and hot water supply, sewerage and drains of buildings and structures (hereinafter referred to as buildings) for various purposes with a height of up to 75 meters.

1.2 These standards do not apply to: the internal fire water supply of buildings and structures; automatic water fire extinguishing systems; heating points; hot water treatment plants; hot water supply systems that supply water for medical procedures, technological needs of industrial enterprises and water supply systems within technological equipment; special industrial water supply systems (deionized water, deep cooling, etc.).

This set of rules uses references to the following regulatory documents: SP 5.13130.2009 Fire protection systems. Fire alarm and fire extinguishing installations are automatic. Design standards and rules SP 10.13130.2009 Fire protection systems. Internal fire water supply. Fire safety requirements SP 21.13330.2012 “SNiP 2.01.09-91 Buildings and structures in mined areas and subsidence soils” SP 31.13330.2012 “SNiP 2.04.02-84* Water supply. External networks and structures" SP 32.13330.2012 "SNiP 2.04.03-85 Sewerage. External networks and structures" SP 54.13330.2011 "SNiP 31-01-2003 Residential multi-apartment buildings" SP 60.13330.2012 "SNiP 41-01-2003 Heating, ventilation and air conditioning" SP 61.13330.2012 "SNiP 41-03-2003 Heat" new insulation equipment and pipelines" SP 73.13330.2012 "SNiP 3.05.01-85 Internal sanitary systems of buildings" SP 118.13330.2012 "SNiP 31-06-2009 Public buildings and structures" SP 124.13330.2012 "SNiP 41-02-2003 Thermal networks" GOST 17.1.2.03-90 Nature conservation. Hydrosphere. Criteria and indicators of water quality for irrigation SanPiN 2.1.4.1074-01 Drinking water. Hygienic requirements for water quality of centralized drinking water supply systems. Quality control. Hygienic requirements for ensuring the safety of hot water supply systems. SanPiN 2.1.4.2496-09 Hygienic requirements for ensuring the safety of hot water supply systems SanPiN 2.1.2.2645-10 Sanitary and epidemiological requirements for living conditions in residential buildings and premises SN 2.2.4/2.1.8.562-96 Noise in workplaces, in residential premises , public buildings and in residential areas SN 2.2.4/2.1.8.566-96 Industrial vibration, vibration in residential and public buildings

Note- When using this standard, it is advisable to check the validity of reference standards and classifiers in the public information system - on the official website of the national body of the Russian Federation for standardization on the Internet or according to the annually published information index “National Standards”, which was published as of January 1 of the current year , and according to the corresponding monthly information indexes published in the current year. If the reference standard is replaced (changed), then when using this set of rules you should be guided by the replacing (changed) document. If the reference document is canceled without replacement, then the provision in which a reference to it is given applies to the part that does not affect this reference.

3 Terms and definitions

This document uses terms whose definitions are adopted according to the Rules for the Use of Public Water Supply and Sewerage Systems in the Russian Federation, approved by , as well as the following terms with the corresponding definitions:

3.1 subscriber: Legal entity, as well as entrepreneurs without forming a legal entity, who own, have economic management or operational management of objects, water supply and (or) sewerage systems that are directly connected to public water supply and (or) sewerage systems, who have entered into a water supply agreement with the organization - sewerage facilities, in accordance with the established procedure, an agreement for the supply (reception) of water and (or) reception (discharge) of wastewater;

3.2 accident of engineering systems: Damage or failure of water supply, sewerage systems or individual structures, equipment, devices, resulting in the cessation or significant reduction in the volume of water consumption and wastewater disposal, the quality of drinking water or causing damage to the environment, property of legal entities or individuals and public health;

3.3 water consumption balance: The volume of water used per year for drinking, sanitary, fire-fighting, industrial needs and their satisfaction from all sources of water supply, including drinking water supply, recycled water supply, collection and treatment of storm water, etc. ;

3.4 internal sewerage system (internal sewerage): A system of pipelines and devices within the boundaries of the external contour of a building and structures, limited by outlets up to the first inspection well, ensuring the disposal of waste, rain and melt water into the sewerage network of the corresponding purpose of the settlement or enterprise;

3.5 internal water supply system (internal water supply): A system of pipelines and devices that provides water supply to sanitary fixtures, technological equipment and fire hydrants within the boundaries of the external contour of the walls of one building or a group of buildings and structures and has a common water-measuring device from external water supply networks settlement or enterprise. In special natural conditions, the boundary of the internal water supply is calculated from the control well closest to the building (structure); 3.6 water supply and sewerage devices and structures for connection to water supply and sewerage systems (water supply inlet or sewerage outlet): Devices and structures through which the subscriber receives drinking water from the water supply system and (or) discharges wastewater into the sewerage system;

3.7 water consumption: Use of water by a subscriber (sub-subscriber) to meet their needs;

3.8 water supply: Technological process that ensures the collection, preparation, transportation and transfer of drinking water to subscribers;

3.9 water disposal: A technological process that ensures the reception of wastewater from subscribers with its subsequent transfer to sewerage treatment facilities;

3.10 water supply network: A system of pipelines and structures on them intended for water supply;

3.11 guaranteed pressure: Pressure at the subscriber input, which is guaranteed to be provided by the water supply organization according to technical conditions;

3.12 sewer network: A system of pipelines, collectors, canals and structures on them for the collection and disposal of wastewater;

3.13 ventilated sewer riser: A riser that has an exhaust part and through it a connection with the atmosphere, facilitating air exchange in the pipelines of the sewer network;

3.14 ventilated valve: A device that allows air to pass in one direction - following the liquid moving in the pipeline and does not allow air to pass in the opposite direction;

3.15 sewer unventilated riser: A riser that has no communication with the atmosphere. Non-ventilated risers include: a riser that does not have an exhaust part; riser equipped with a ventilation valve; a group (at least four) of risers connected at the top by a collection pipeline, without an exhaust part;

3.16 local treatment facilities: Structures and devices designed to treat wastewater from a subscriber (sub-subscriber) before discharge (reception) into the public sewer system or for use in the recycling water supply system;

3.17 water consumption (water disposal) limit: The maximum volume of supplied (received) drinking water and received (discharged) wastewater for a certain period of time established for the subscriber by technical conditions;

3.18 water supply and sewerage organization (“Vodokanal”): An enterprise (organization) that supplies water from the water supply system and (or) receives wastewater into the sewerage system and operates these systems;

3.19 drinking water: Water after treatment or in its natural state, meeting the hygienic requirements of sanitary standards and intended for drinking and domestic needs of the population and (or) food production;

3.20 throughput of a device or structure for connection: The ability of a water supply input (sewer outlet) to pass the calculated amount of water (wastewater) under a given mode for a certain time;

3.21 estimated water consumption: Consumption standards justified by research and operational practice, taking into account the main influencing factors (number of consumers, number of sanitary fixtures, occupancy of apartments in residential buildings, volume of production, etc.); calculated water consumption and consumption rates cannot be used to determine the actual volume of water consumption and commercial calculations;

3.22 estimated waste flows: Justified by research and operational practice, the values ​​of costs predicted for the sewerage facility as a whole or part of it, taking into account influencing factors (number of consumers, number and characteristics of sanitary fixtures and equipment, capacity of drainage pipelines, etc.);

3.23 permitting documentation: Permission for connection to water supply (sewage) systems, issued by local governments in agreement with local services of Rospotrebnadzor, and technical conditions for connection, issued by the water supply and sewerage organization;

3.24 mode of supply (receipt) of drinking water: Guaranteed flow (hourly, second) and free pressure at a given characteristic water consumption for the needs of the subscriber; 3.25 open hot water collection system: Collection of hot water directly from the heating system network;

3.26 closed hot water supply system: Heating water for hot water supply in heat exchangers and water heaters;

3.27 recycling water supply system: Treatment system in local treatment facilities and reuse of wastewater for economic and technological needs;

3.28 composition of wastewater: Characteristics of wastewater, including a list of pollutants and their concentration;

3.29 measuring instrument (device): A technical instrument intended for measurements, having standardized metrological characteristics, reproducing and (or) storing a unit of physical quantity, the size of which is assumed unchanged (within the established error) for a certain time interval, and authorized for use for commercial accounting. According to the design specifications, the device must also have the ability to transmit data remotely;

3.30 wastewater: Water generated as a result of human economic activity (domestic wastewater) and subscribers after using water from all sources of water supply (drinking, technical, hot water supply, steam from heat supply organizations); accounting): A set of instruments and devices that provide accounting of the amount of consumed (received) water and discharged (received) wastewater;

3.31 centralized water supply system: A complex of engineering structures of settlements for the collection, preparation, transportation and transfer of drinking water to subscribers;

3.32 centralized sewerage system: A complex of engineering structures of settlements for the collection, purification and disposal of wastewater into water bodies and the treatment of sewage sludge.

UPDATED EDITION OF SNIP 2.04.01-85*

Domestic water supply and drainage systems in buildings

SP 30.13330.2012

OKS 91.140.60,
OKS 91.140.80

Preface

The goals and principles of standardization in the Russian Federation are established by the Federal Law of December 27, 2002 N 184-FZ “On Technical Regulation”, and the development rules are established by the Decree of the Government of the Russian Federation of November 19, 2008 N 858 “On the procedure for the development and approval of sets of rules ".

Rulebook Details

1. Executors - OJSC SantekhNIIproekt, OJSC Scientific Research Center Construction.
2. Introduced by the Technical Committee for Standardization TC 465 "Construction".
3. Prepared for approval by the Department of Architecture, Construction and Urban Development Policy.
4. Approved by Order of the Ministry of Regional Development of the Russian Federation (Ministry of Regional Development of Russia) dated December 29, 2011 N 626 and put into effect on January 1, 2013.
5. Registered by the Federal Agency for Technical Regulation and Metrology (Rosstandart). Revision of SP 30.13330.2010 "SNiP 2.04.01-85*. Internal water supply and sewerage of buildings."

Information about changes to this set of rules is published in the annually published information index "National Standards", and the text of changes and amendments is published in the monthly published information index "National Standards". In case of revision (replacement) or cancellation of this set of rules, the corresponding notice will be published in the monthly published information index "National Standards". Relevant information, notices and texts are also posted in the public information system - on the official website of the developer (Ministry of Regional Development of Russia) on the Internet.

Introduction

This set of rules is an updated edition of SNiP 2.04.01-85* “Internal water supply and sewerage of buildings”. The basis for the development of the regulatory document is: Federal Law of December 30, 2009 N 384-FZ “Technical Regulations on the Safety of Buildings and Structures”, Federal Law N 184-FZ “On Technical Regulation”, Federal Law N 261-FZ “On Energy Saving” and on improving energy efficiency."
The updating of SNiP was carried out by a team of authors: OJSC SantekhNIIproekt (candidate of technical sciences A.Ya. Sharipov, engineer T.I. Sadovskaya, engineer E.V. Chirikova), OJSC Mosproekt (engineers E.N. Chernyshev , K.D. Kunitsyna), NP "ABOK" (Doctor of Technical Sciences, Prof. Yu.A. Tabunshchikov, engineer A.N. Kolubkov), JSC "CNS" (engineer V.P. Bovbel) , Chamber of Commerce and Industry of the Russian Federation (engineer A.S. Verbitsky), State Unitary Enterprise "MosvodokanalNIIproekt" (engineer A.L. Lyakmund).

1 area of ​​use

1.1. This set of rules applies to the designed and reconstructed internal systems of cold and hot water supply, sewerage and drains of buildings and structures (hereinafter referred to as buildings) for various purposes with a height of up to 75 meters.
1.2. These rules do not apply to:
for internal fire water supply of buildings and structures;
automatic water fire extinguishing systems;
heating points;
hot water treatment plants;
hot water supply systems that supply water for medical procedures, technological needs of industrial enterprises and water supply systems within technological equipment;
special industrial water supply systems (deionized water, deep cooling, etc.).

This set of rules uses references to the following regulatory documents:
SP 5.13130.2009 Fire protection systems. Fire alarm and fire extinguishing installations are automatic. Design standards and rules
SP 10.13130.2009 Fire protection systems. Internal fire water supply. Fire safety requirements
SP 21.13330.2012 "SNiP 2.01.09-91 Buildings and structures in undermined areas and subsidence soils"
SP 31.13330.2012 "SNiP 2.04.02-84* Water supply. External networks and structures"
SP 32.13330.2012 "SNiP 2.04.03-85 Sewerage. External networks and structures"
SP 54.13330.2011 "SNiP 31-01-2003 Residential multi-apartment buildings"
SP 60.13330.2012 "SNiP 41-01-2003 Heating, ventilation and air conditioning"
SP 61.13330.2012 "SNiP 41-03-2003 Thermal insulation of equipment and pipelines"
SP 73.13330.2012 "SNiP 3.05.01-85 Internal sanitary systems of buildings"
SP 118.13330.2012 "SNiP 31-06-2009 Public buildings and structures"
SP 124.13330.2012 "SNiP 41-02-2003 Heating networks"
GOST 17.1.2.03-90 Nature conservation. Hydrosphere. Criteria and indicators of water quality for irrigation
SanPiN 2.1.4.1074-01 Drinking water. Hygienic requirements for water quality of centralized drinking water supply systems. Quality control. Hygienic requirements for ensuring the safety of hot water supply systems
SanPiN 2.1.4.2496-09 Hygienic requirements for ensuring the safety of hot water supply systems
SanPiN 2.1.2.2645-10 Sanitary and epidemiological requirements for living conditions in residential buildings and premises
SN 2.2.4/2.1.8.562-96 Noise in workplaces, in residential and public buildings and in residential areas
SN 2.2.4/2.1.8.566-96 Industrial vibration, vibration in residential and public buildings.
Note. When using this standard, it is advisable to check the validity of reference standards and classifiers in the public information system - on the official website of the national body of the Russian Federation for standardization on the Internet or according to the annually published information index "National Standards", which was published as of January 1 of the current year, and according to the corresponding monthly information indexes published in the current year. If the reference standard is replaced (changed), then when using this set of rules you should be guided by the replacing (changed) document. If the reference document is canceled without replacement, then the provision in which a reference to it is given applies to the part that does not affect this reference.

3. Terms and definitions

This document uses terms whose definitions are adopted according to the Rules for the use of public water supply and sewerage systems in the Russian Federation, approved by the Russian Federation, as well as the following terms with corresponding definitions:
3.1. Subscriber: legal entity, as well as entrepreneurs without the formation of a legal entity, who own, have economic management or operational management of objects, water supply and (or) sewerage systems that are directly connected to public water supply and (or) sewerage systems, who have entered into a water supply agreement with the organization sewerage system in accordance with the established procedure, an agreement for the supply (reception) of water and (or) reception (discharge) of wastewater;
3.2. Accident of engineering systems: damage or failure of water supply, sewerage systems or individual structures, equipment, devices, resulting in the cessation or significant reduction in the volume of water consumption and wastewater disposal, the quality of drinking water or causing damage to the environment, property of legal entities or individuals and public health;
3.3. Water consumption balance: the volume of water used per year for drinking, sanitary, fire-fighting, industrial needs and their satisfaction from all sources of water supply, including drinking water supply, recycled water supply, collection and treatment of storm drains, etc.;
3.4. Internal sewerage system (internal sewerage): a system of pipelines and devices within the boundaries of the external contour of a building and structures, limited by outlets to the first inspection well, ensuring the disposal of waste, rain and melt water into the sewerage network of the appropriate destination of the settlement or enterprise;
3.5. Internal water supply system (internal water supply): a system of pipelines and devices that provides water supply to sanitary fixtures, technological equipment and fire hydrants within the boundaries of the external contour of the walls of one building or group of buildings and structures and has a common water-measuring device from the external water supply networks of the populated area point or enterprise. In special natural conditions, the boundary of the internal water supply is calculated from the control well closest to the building (structure);
3.6. Water supply and sewerage devices and structures for connection to water supply and sewerage systems (water supply inlet or sewerage outlet): devices and structures through which the subscriber receives drinking water from the water supply system and (or) discharges wastewater into the sewerage system;
3.7. Water consumption: the use of water by the subscriber (sub-subscriber) to meet their needs;
3.8. Water supply: a technological process that ensures the collection, preparation, transportation and transfer of drinking water to subscribers;
3.9. Water disposal: a technological process that ensures the reception of wastewater from subscribers with its subsequent transfer to sewerage treatment facilities;
3.10. Water supply network: a system of pipelines and structures on them intended for water supply;
3.11. Guaranteed pressure: pressure at the subscriber's inlet, which is guaranteed to be provided by the water supply organization according to technical conditions;
3.12. Sewer network: a system of pipelines, collectors, canals and structures on them for the collection and disposal of wastewater;
3.13. Ventilated sewer riser: a riser that has an exhaust part and through it a connection with the atmosphere, facilitating air exchange in the pipelines of the sewer network;
3.14. Ventilated valve: a device that allows air to pass in one direction - following the liquid moving in the pipeline and does not allow air to pass in the opposite direction;
3.15. Unventilated sewer riser: a riser that has no communication with the atmosphere. Non-ventilated risers include:
a riser that does not have an exhaust part;
riser equipped with a ventilation valve;
a group (at least four) of risers connected at the top by a collection pipeline, without an exhaust part;
3.16. Local treatment facilities: structures and devices designed to treat wastewater from a subscriber (sub-subscriber) before discharge (reception) into the public sewer system or for use in the recycling water supply system;
3.17. Water consumption (wastewater disposal) limit: the maximum volume of supplied (received) drinking water and received (discharged) wastewater for a certain period of time established to the subscriber by technical conditions;
3.18. Organization of water supply and sewerage services ("Vodokanal"): an enterprise (organization) that supplies water from the water supply system and (or) receives wastewater into the sewerage system and operates these systems;
3.19. Drinking water: water after treatment or in its natural state, meeting the hygienic requirements of sanitary standards and intended for drinking and domestic needs of the population and (or) food production;
3.20. Capacity of a device or structure for connection: the ability of a water supply inlet (sewer outlet) to pass the calculated amount of water (wastewater) under a given mode for a certain time;
3.21. Estimated water consumption: consumption standards based on research and operational practice, taking into account the main influencing factors (number of consumers, number of sanitary fixtures, occupancy of apartments in residential buildings, volume of production, etc.);
calculated water consumption and consumption rates cannot be used to determine the actual volume of water consumption and commercial calculations;
3.22. Estimated wastewater costs: justified by research and operational practice, the values ​​of costs predicted for the sewerage facility as a whole or part of it, taking into account influencing factors (number of consumers, number and characteristics of sanitary fixtures and equipment, capacity of drainage pipelines, etc.);
3.23. Permitting documentation: permission to connect to water supply (sewage) systems, issued by local governments in agreement with local services of Rospotrebnadzor, and technical conditions for connection, issued by the water supply and sewerage organization;
3.24. Mode of supply (receipt) of drinking water: guaranteed flow (hourly, second) and free pressure at a given characteristic water consumption for the needs of the subscriber;
3.25. Open hot water collection system: collection of hot water directly from the heating system network;
3.26. Closed hot water system: heating water for hot water supply in heat exchangers and water heaters;
3.27. Recycling water supply system: treatment system in local treatment facilities and reuse of wastewater for economic and technological needs;
3.28. Composition of wastewater: characteristics of wastewater, including a list of pollutants and their concentration;
3.29. Measuring instrument (device): a technical instrument intended for measurements, having standardized metrological characteristics, reproducing and (or) storing a unit of physical quantity, the size of which is assumed unchanged (within the established error) for a certain time interval, and authorized for use for commercial purposes. accounting. According to the design specifications, the device must also have the ability to transmit data remotely;
3.30. Wastewater: water generated as a result of human economic activity (domestic wastewater) and subscribers after using water from all sources of water supply (drinking, technical, hot water supply, steam from heat supply organizations);
3.31. Metering unit for consumed drinking water and discharged wastewater (metering unit): a set of instruments and devices that ensure accounting of the amount of consumed (received) water and discharged (received) wastewater;
3.32. Centralized water supply system: a complex of engineering structures in populated areas for the collection, preparation, transportation and transfer of drinking water to subscribers;
3.33. Centralized sewerage system: a complex of engineering structures in populated areas for collecting, purifying and discharging wastewater into water bodies and treating sewage sludge.

4. General provisions

4.1. Pipelines for water supply systems (including external fire extinguishing) and sewerage systems laid outside buildings must comply with the standards for external water supply and sewerage networks (SP 31.13330 and SP 32.13330).
4.2. The preparation of hot water should be provided in accordance with the standards for heating networks SP 124.13330.
4.3. In buildings of any purpose erected in sewerage areas, internal water supply and sewerage systems should be provided.
The quality of wastewater after treatment in local installations must comply with the technical conditions for receiving it in the external sewerage network and departmental standards.
4.4. In non-sewered areas of populated areas, internal water supply systems with the installation of local apartment and/or collective drinking water purification systems and sewerage systems with the installation of local treatment facilities should be provided in residential buildings with a height of more than two floors, hotels, boarding homes for the disabled and elderly, hospitals, maternity hospitals, clinics, outpatient clinics, dispensaries, sanitary and epidemiological stations, sanatoriums, rest homes, boarding houses, sports and recreational institutions, preschool educational institutions, boarding schools, institutions of primary and secondary vocational education, secondary schools, cinemas, clubs and leisure and entertainment institutions, catering establishments, sports facilities, bathhouses and laundries.
Notes
1. According to the design assignment, it is allowed to install internal water supply and sewerage systems in unsewered areas of populated areas for one- and two-story residential buildings.
2. In production and auxiliary buildings, internal water supply and sewerage systems may not be provided in cases where the enterprise does not have a centralized water supply and the number of employees is no more than 25 people per shift.
3. In buildings equipped with internal drinking or industrial water supply, it is necessary to provide an internal sewage system.

4.5. In non-sewered areas of settlements, in agreement with local authorities of Rospotrebnadzor, it is allowed to equip the following buildings with backlash closets or dry closets (without installing water supply inlets):
production and auxiliary buildings of industrial enterprises with the number of employees up to 25 people per shift;
residential buildings 1 - 2 floors high;
dormitories with a height of 1 - 2 floors for no more than 50 people;
physical education and recreational facilities with no more than 240 seats, used only in the summer;
club and leisure and entertainment institutions;
open planar sports facilities;
catering establishments with no more than 25 seats.
Notes
1. Backlash closets may be installed in buildings in climatic regions I - III.
2. Methods for disposing of the contents of backlash closets and dry closets are determined by the project according to the technical conditions of local utilities.

4.6. The need to install internal drains is established by the architectural and construction part of the project.
4.7. Pipes, fittings, equipment and materials used in the installation of internal systems of cold and hot water supply, sewerage and drains must comply with the requirements of these norms, national standards, sanitary and epidemiological norms and other documents approved in the prescribed manner.
To transport and store drinking water, pipes, materials and anti-corrosion coatings should be used that have passed sanitary and epidemiological examination and have the appropriate permits and certificates for use in domestic and drinking water supply.

Determination of estimated water and waste flow rates

4.8. For hydraulic calculation of water pipelines and selection of equipment, the following estimated flow rates of hot and cold water should be used:
daily water consumption (total, hot, cold) for the estimated time of water consumption, for which the average hourly consumption is established, m3/day;
maximum hourly water consumption (total, hot, cold), m3/h;
minimum hourly water consumption (total, hot, cold), m3/h;
maximum second water consumption (total, hot, cold), l/s.
Notes
1. The calculated average hourly and maximum second water flow rates should be taken in accordance with Table A.1 of Appendix A.
2. Estimated (specific) annual average daily water consumption in residential buildings per 1 person (l/day) should be taken according to Table A.2 of Appendix A.
3. Estimated (specific) annual average daily water consumption for various consumers (l/day) should be taken according to Table A.3 of Appendix A.

4.9. Estimated water flow rates in cold water pipelines should be determined depending on:
a) specific average hourly water consumption, l/h, related to one consumer or sanitary fixture;
b) the type and total number of water consumers and/or the type and total number of sanitary fixtures (for the water supply system as a whole or for individual sections of the design scheme of the water supply network). If the number of sanitary fixtures (water collection points) is unknown, it is allowed to take the number of fixtures equal to the number of consumers.
4.10. Estimated water flow rates in hot water pipelines should be determined:

ConsultantPlus: note.
There appears to be a typo in the official text of the document: in paragraph 4.2, subparagraphs a) and b) are missing.

for water withdrawal mode - similar to 4.2 a), b) taking into account the residual circulation flow in the areas from the place of heating to the place of the first water withdrawal;
for circulation mode - in thermal-hydraulic calculation.
4.11. For risers of sewerage systems, the calculated flow rate is the maximum second flow rate of wastewater from sanitary fixtures connected to the riser, which does not cause the breakdown of hydraulic valves of any types of sanitary fixtures (wastewater receivers). This flow rate should be determined as the sum of the calculated maximum second flow rate of water from all sanitary fixtures, determined according to Table A.1 of Appendix A, and the calculated maximum second flow rate of flow from the device with maximum water removal (should, as a rule, take the maximum second flow rate of flow from the flush toilet cistern equal to 1.6 l/s).
4.12. For horizontal outlet pipelines of sewerage systems, the design flow rate should be considered the flow rate, the value of which is calculated depending on the number of sanitary fixtures N connected to the design section of the pipeline, and the length of this section of the pipeline L, m, according to the formula

where is the total maximum hourly water flow in the design area, m3/h;
- coefficient accepted according to table 1;
- estimated maximum wastewater flow, l/s, from the device with maximum water removal.

Table 1

Values ​​depending on the number of devices N
and length of the outlet pipeline

N Length of outlet (horizontal) pipeline, m
1 3 5 7 10 15 20 30 40 50 100 500 1000
4 0,61 0,51 0,46 0,43 0,40 0,36 0,34 0,31 0,27 0,25 0,23 0,15 0,13
8 0,63 0,53 0,48 0,45 0,41 0,37 0,35 0,32 0,28 0,26 0,24 0,16 0,13
12 0,64 0,54 0,49 0,46 0,42 0,39 0,36 0,33 0,29 0,26 0,24 0,16 0,14
16 0,65 0,55 0,50 0,47 0,43 0,39 0,37 0,33 0,30 0,27 0,25 0,17 0,14
20 0,66 0,56 0,51 0,48 0,44 0,40 0,38 0,34 0,30 0,28 0,25 0,17 0,14
24 0,67 0,57 0,52 0,48 0,45 0,41 0,38 0,35 0,31 0,28 0,26 0,17 0,15
28 0,68 0,58 0,53 0,49 0,46 0,42 0,39 0,36 0,31 0,29 0,27 0,18 0,15
32 0,68 0,59 0,53 0,50 0,47 0,43 0,40 0,36 0,32 0,30 0,27 0,18 0,15
36 0,69 0,59 0,54 0,51 0,47 0,43 0,40 0,37 0,33 0,30 0,28 0,19 0,16
40 0,70 0,60 0,55 0,52 0,48 0,44 0,41 0,37 0,33 0,31 0,28 0,19 0,16
100 0,77 0,69 0,64 0,60 0,56 0,52 0,49 0,45 0,40 0,37 0,34 0,23 0,20
500 0,95 0,92 0,89 0,88 0,86 0,83 0,81 0,77 0,73 0,70 0,66 0,50 0,44
1000 0,99 0,98 0,97 0,97 0,96 0,95 0,94 0,93 0,91 0,90 0,88 0,77 0,71
Note. The length of the outlet pipeline should be taken
distance from the last riser on the design section to the nearest
connecting the next riser or, in the absence of such connections,
to the nearest sewer well.

5. Plumbing system

5.1. Water quality and temperature in the water supply system
5.1.1. The quality of cold and hot water (sanitary and epidemiological indicators) supplied for household and drinking needs must comply with SanPiN 2.1.4.1074 and SanPiN 2.1.4.2496. The quality of water supplied for production needs is determined by the design specifications (technological requirements).
5.1.2. The temperature of hot water at water supply points must comply with the requirements of SanPiN 2.1.4.1074 and SanPiN 2.1.4.2496 and, regardless of the heat supply system used, must be no lower than 60 °C and no higher than 75 °C.
Note. The requirement of this paragraph does not apply to places of water collection for production (technological) needs, as well as to places of water collection for the needs of service personnel of these institutions.

5.1.3. In the premises of preschool institutions, the temperature of hot water supplied to the water fittings of showers and washbasins should not exceed 37 °C.
5.1.4. The choice of hot water preparation scheme and, if necessary, its treatment should be carried out in accordance with SP 124.13330.
5.1.5. In hot water supply systems of public catering establishments and others, whose consumers require water with a temperature higher than that specified in 5.1.2, additional heating of water should be provided in local water heaters.
5.1.6. In populated areas and enterprises, in order to save potable quality water, with a feasibility study and in agreement with Rospotrebnadzor authorities, it is allowed to supply non-potable quality water to urinals and toilet flush tanks.

5.2. Cold and hot water plumbing systems
5.2.1. Cold water supply systems can be centralized or local. The choice of a building's internal water supply system (centralized or local) should be made depending on sanitary, hygienic and fire safety requirements, production technology requirements, as well as taking into account the adopted external water supply scheme.
A hot water supply system should, as a rule, have a closed water supply with the preparation of hot water in heat exchangers and water heaters (water-water, gas, electric, solar, etc.). According to the design assignment, it is allowed to provide a hot water supply system in the building with an open (directly from the heating network) water supply.
5.2.2. In buildings (structures), depending on their purpose, internal water supply systems should be provided:
household and drinking water;
hot;
fire protection according to 5.3;
negotiable;
production
The fire-fighting water supply system in buildings with drinking water or industrial water supply systems should, as a rule, be combined with one of them, provided that the requirements of SP 10.13130 ​​and this set of rules are met:
utility and drinking water supply with fire-fighting water supply (service and fire-fighting water supply);
industrial water supply with fire-fighting water supply (industrial and fire-fighting water supply);
Networks of cold and hot drinking water supply systems are not allowed to be combined with networks of water supply systems supplying non-potable water.
5.2.3. Internal water supply systems (domestic and drinking, hot water supply, industrial, fire protection) include: inputs to buildings, metering units for cold and hot water consumption, distribution network, risers, connections to sanitary fixtures and technological installations, water supply, mixing, shut-off and control valves . Depending on local conditions and production technology, it is allowed to provide spare (battery) and control tanks in the internal water supply system.
5.2.4. The choice of heating and water treatment scheme for centralized hot water supply systems should be provided in accordance with SP 124.13330.
5.2.5. In centralized hot water supply systems, if it is necessary to maintain the water temperature in places where water is drawn at least as specified in 5.1.2, a hot water circulation system should be provided during the period when water is not drawn.
In hot water supply systems with time-regulated consumption of hot water, hot water circulation may not be provided if its temperature at the water supply points does not drop below that established in 5.1.2.
5.2.6. Heated towel rails installed in bathrooms and shower rooms to maintain a given air temperature in them in accordance with SP 60.13330 and SanPiN 2.1.2.2645 should be connected to the supply pipelines of the hot water supply system or to the consumer's power supply system. When justified, heated towel rails may be connected to the circulation pipes of the hot water supply system, provided that a shut-off valve and a closing section are installed.
5.2.7. In residential and public buildings with a height of more than 4 floors, water risers should be combined by ring jumpers into sectional units with each water outlet connected by one circulation pipeline to the combined circulation pipeline of the system.
From three to seven water risers should be combined into sectional units. Ring jumpers should be laid: in a warm attic, in a cold attic if the pipes are thermally insulated, under the ceiling of the upper floor when supplying water to the water risers from below, or in the basement when supplying water to the risers from above.
5.2.8. In a hot water supply system, connecting water taps to circulation pipelines is not allowed.
5.2.9. Pipelines of hot water supply systems, except for connections to appliances, should be insulated to protect against heat loss. Pipelines of the cold water supply system (except for dead-end fire risers) laid in channels, shafts, sanitary cabins, tunnels, as well as in rooms with high humidity, should be insulated to prevent moisture condensation in accordance with SP 61.13330.
5.2.10. The hydrostatic pressure in the drinking water or fire-fighting water supply system at the level of the lowest located sanitary fixture should be no more than 0.45 MPa (for buildings designed in existing buildings no more than 0.6 MPa), at the level of the highest located devices - according to the passport data of these devices, and in the absence of such data, not less than 0.2 MPa.
In the fire-fighting water supply system, during fire extinguishing, it is allowed to increase the pressure to 0.6 MPa at the level of the lowest located sanitary fixture.
In a two-zone fire-fighting water supply system (in schemes with overhead piping), in which fire risers are used to supply water to the upper floor, the hydrostatic pressure should not exceed 0.9 MPa at the level of the lowest located sanitary fixture.
5.2.11. When the design pressure in the network exceeds the pressure specified in 5.2.10, it is necessary to provide devices (pressure regulators) that reduce the pressure. Pressure regulators installed in the drinking water supply system must provide after themselves the design pressure both in static and dynamic modes of operation of the system. In buildings where the design water pressure of sanitary fixtures, water taps and mixing fittings exceeds the permissible values ​​specified in 5.2.10, the use of fittings with built-in water flow regulators is allowed.

5.3. Fire water systems
5.3.1. For residential, public, as well as administrative buildings of industrial enterprises, as well as for industrial and warehouse buildings, the need to install an internal fire-fighting water supply system, as well as the minimum water consumption for fire extinguishing, should be determined in accordance with the requirements of SP 10.13130.
5.3.2. For integrated fire-fighting water supply systems, the pipeline networks should be taken according to the highest calculated water flow and pressure:
for water consumption needs in accordance with this set of rules;
for fire extinguishing needs in accordance with SP 10.13130.

5.4. Cold and hot water supply networks
5.4.1. Cold water supply networks should be:
dead-end, if a break in the water supply is allowed and the number of fire hydrants is less than 12;
ring or with looped inputs with two dead-end pipelines with branches to consumers from each of them to ensure a continuous supply of water;
ring fire risers for a combined service and fire water supply system in buildings with a height of 6 floors or more. At the same time, to ensure the replacement of water in the building, it is necessary to provide for a ringing of fire risers with one or several water risers with the installation of shut-off valves.
5.4.2. Two or more inputs should be provided for buildings:
residential with more than 400 apartments, clubs and leisure and entertainment institutions with a stage, cinemas with more than 300 seats;
theaters, clubs and leisure and entertainment institutions with a stage, regardless of the number of seats;
baths with a number of places of 200 or more;
laundries for 2 or more tons of linen per shift;
buildings with 12 or more fire hydrants;
with ring cold water networks or with looped inputs in accordance with 5.4.1;
buildings equipped with sprinkler and deluge systems in accordance with SP 5.13130 ​​with more than three control units.
5.4.3. When installing two or more inlets, provision should be made for connecting them, as a rule, to different sections of the outer ring water supply network. Shut-off devices should be installed between inputs to the building on the external network to ensure water supply to the building in the event of an accident in one of the network sections.
5.4.4. If it is necessary to install pumps in a building to increase pressure in the internal water supply network, the inlets must be combined in front of the pumps with the installation of shut-off valves on the connecting pipeline to ensure water supply to each pump from any inlet.
When installing independent pumping units at each input, there is no need to combine inputs.
5.4.5. It is necessary to provide for the installation of check valves at water supply inlets if several inlets are installed on the internal water supply network, having measuring devices and interconnected by pipelines inside the building.
The horizontal clear distance between the inlets of the drinking water supply and the outlets of the sewerage system or drains should be no less than:
1.5 m - with an input pipeline diameter of up to 200 mm inclusive;
3 m - with an input pipeline diameter of more than 200 mm.
Joint installation of water supply inlets for various purposes is allowed.
5.4.6. On the inlet pipelines, stops should be provided at pipe turns in the vertical or horizontal plane, when the resulting forces cannot be absorbed by the pipe connections.
5.4.7. The intersection of the input pipeline with the walls of the building should be carried out:
in dry soils - with a gap of 0.2 m between the pipeline and building structures and sealing the hole in the wall with waterproof and gas-tight (in gasified areas) elastic materials; in wet soils - with the installation of seals.
5.4.8. The laying of distribution networks of cold and hot water supply pipelines in residential and public buildings should be provided in undergrounds, basements, technical floors and attics, and in the absence of attics - on the ground floor in underground channels together with heating pipelines or under the floor with a removable covering device, and also on building structures where open laying of pipelines is allowed, or under the ceiling of non-residential premises on the upper floor.
5.4.9. Water risers and cold and hot water inlets into apartments and other premises, as well as shut-off valves, measuring instruments, and regulators should be placed in communication shafts with the installation of special technical cabinets that provide free access to them for technical personnel.
The laying of risers and wiring may be provided in shafts, openly - along the walls of showers, kitchens and other similar premises, taking into account the placement of the necessary shut-off, regulating and measuring devices.
For premises with high finishing requirements, and for all networks with pipelines made of polymeric materials (except for pipelines in sanitary facilities), hidden installation should be provided.
Hidden installation of steel pipelines connected with threads (with the exception of elbows for connecting wall-mounted water fittings) without access to the butt joints is not permitted.
5.4.10. The laying of water supply networks inside industrial buildings, as a rule, should be provided open - along trusses, columns, walls and under ceilings. It is allowed to provide for the placement of water pipelines in common channels with other pipelines, except for pipelines transporting flammable, combustible or toxic liquids and gases.
The joint laying of utility and drinking water pipelines with sewerage pipelines may be provided in through channels, while the sewerage pipelines should be placed below the water supply system.
Water pipelines may be laid in special channels during a feasibility study and according to design instructions.
Pipelines supplying water to process equipment may be laid in the floor or under the floor, with the exception of basements.
5.4.11. When installed together in channels with pipelines transporting hot water or steam, the cold water supply network must be placed below these pipelines with a thermal insulation device.
5.4.12. The laying of pipelines should be provided with a slope of at least 0.002; for justification, a slope of 0.001 is allowed.
5.4.13. Pipelines, except for fire risers, laid in channels, shafts, cabins, tunnels, as well as in rooms with high humidity, should be insulated from moisture condensation.
5.4.14. The installation of year-round internal cold water supply should be provided in rooms with air temperatures above 2 °C in winter. When laying pipelines in rooms with air temperatures below 2 °C, it is necessary to take measures to protect pipelines from freezing (electric heating or thermal support).
If it is possible to temporarily reduce the room temperature to 0 °C or lower, as well as when laying pipes in the area influenced by external cold air (near external entrance doors and gates), thermal insulation of the pipes should be provided.
5.4.15. Air release devices should be provided at the highest points of the pipelines of hot water supply systems. The release of air from the pipeline system is allowed through water fittings located at the highest points of the system (upper floors).
Drainage devices should be provided at the lowest points of pipeline systems, except in cases where water dispensing fittings are provided at these points.
5.4.16. When designing hot water supply networks, measures should be taken to compensate for temperature changes in pipe length.
5.4.17. Thermal insulation should be provided for supply and circulation pipelines of hot water supply systems, except for connections to water taps.
5.4.18. Pressure losses in sections of pipelines of cold and hot water supply networks, including when combining risers into water supply units, should be determined taking into account the roughness of the pipe material and the viscosity of water.

5.5. Calculation of the cold water supply network
5.5.1. Hydraulic calculations of cold water water supply networks must be made based on maximum second water flow rates. Hydraulic calculation of cold water pipelines includes: determination of estimated water flow rates, selection of diameters of supply pipelines, ring jumpers and risers, pressure losses and establishment of normalized free pressure at control points of water collection.
For groups of buildings for which hot water is prepared and/or water pressure is increased in separate (or internal) pumping stations and heating points, the determination of the estimated water flow rates and hydraulic calculations of pipelines should be carried out in accordance with these standards.
5.5.2. Networks of combined utility-fire-fighting and industrial-fire-fighting water supply systems must be checked to pass the calculated water flow for fire extinguishing at the calculated maximum second flow for household, drinking and production needs. At the same time, water costs for using showers, washing floors, and watering the territory are not taken into account.
Hydraulic calculation of water supply networks is carried out for design diagrams of ring networks without excluding any sections of the network, risers or equipment.
Note. For residential areas, during fire extinguishing and liquidation of an emergency on the external water supply network, it is allowed not to provide water supply to a closed hot water supply system.

5.5.3. When calculating utility, drinking and industrial networks, including those combined with a fire water supply system, it is necessary to ensure the necessary water pressure for devices located highest and furthest from the input.
5.5.4. Hydraulic calculations of water supply networks fed by several inputs should be made taking into account the shutdown of one of them.
With two inputs, each of them must be designed for 100% water flow.
5.5.5. The diameters of the pipes of internal water supply networks should be taken based on the use of the maximum guaranteed water pressure in the external water supply network.
The diameters of the ring jumper pipelines should be no less than the larger diameter of the water riser.
5.5.6. The speed of water movement in the pipelines of internal networks should not exceed 1.5 m/s, with the capacity of pipelines of integrated economic-fire-fighting and industrial-fire-fighting systems being checked at a speed of 3 m/s.
The diameters of the pipelines of water risers in the water distribution unit should be selected according to the calculated maximum second water flow in the riser with a coefficient of 0.7.

5.6. Calculation of hot water supply network
5.6.1. Hydraulic calculations of hot water circulation systems should be made for two water supply modes (water withdrawal and circulation):
a) determination of the calculated second water consumption, selection of the diameters of the supply pipelines and determination of pressure losses along the supply pipelines in water collection mode;
b) selection of diameters of circulation pipelines, determination of the required circulation flow per second and linking pressure losses along individual rings of hot water supply networks in circulation mode.
5.6.2. The selection of the diameters of the supply pipelines of hot water supply networks in water collection mode should be carried out at the calculated maximum second flow of hot water with a coefficient taking into account the residual circulation flow in water collection mode. The coefficient should be taken:
1.1 - for water heaters and sections of supply pipelines of hot water supply networks to the last water outlet of the main settlement branch;
1.0 - for other sections of supply pipelines.
In the minimum water withdrawal mode at night, the value of the circulation flow of hot water should be taken equal to 30 - 40% of the calculated average second water flow.
5.6.3. The diameters of the water risers in the water distribution unit should be selected according to the estimated maximum second water flow rate in the riser with a coefficient of 0.7, provided that the length of the ring jumpers from the place of the last water withdrawal (along the direction of water movement) of one water riser to a similar point in another water riser does not exceed the length of the water riser itself.
The diameters of the ring jumpers should be no less than the maximum diameter of the water riser.
5.6.4. In networks of open hot water withdrawal from pipelines of the heating network, pressure losses should be determined taking into account the pressure in the return pipeline of the heating network.
5.6.5. The circulation flow in hot water supply networks should be determined:
when distributing the circulation flow rate in proportion to heat loss (due to the variable resistance of the circulation risers) - according to the sum of heat losses of the supply pipelines and the temperature difference from the outlet of the heater to the point of water selection.
Changing the resistance of circulation risers must be done by selecting their diameter, using balancing valves, automatic control devices and throttling diaphragms (diameter of at least 10 mm).
5.6.6. If there is a ring jumper between the water risers, when calculating the heat loss of the water distribution unit, the heat loss of the pipelines of the ring jumper is taken into account.
5.6.7. Pressure losses in circulation mode in individual branches of the hot water supply system (including circulation pipelines) should not differ for different branches by more than 10%.
5.6.8. The speed of movement of hot water in the pipelines of the hot water supply system should not exceed 1.5 m/s.

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