Purpose and scope of application of the universal water meter with connectors, VSKM 90-15
Water meters VSKM 90-15 designed for measuring the volume of network water according to SNiP 2.04.07 and drinking water according to GOST R 51232, flowing in supply or return pipelines closed or open systems heating, cold and hot water supply systems in the temperature range from 5 to 90°C at a pressure of no more than 1.0 MPa. The meters have a counting mechanism with roller and pointer indicators showing the measured volume in m3 and its fractions.
Brief description of the universal water meter with connectors, VSKM 90-15
The operating principle of vane meters is based on measuring the number of revolutions of an impeller rotating at a speed proportional to the flow of water flowing in the pipeline.
Structurally, the meter consists of a housing with a filter, a measuring chamber and a counting mechanism placed in a glass made of non-magnetic material.
Water meters VSKM belong to the so-called “multi-jet” type of devices, when water enters the impeller through holes in the guide in which the impeller itself is located. This increases the accuracy of measurements, as well as the reliability of the water meter.
Basic specifications Universal water meter with connectors, VSKM 90-15
| № | Parameter name | ||
| 1 | Metrological class | ||
| 2 | Water consumption, m3/h | ||
| - minimum, Qmin | |||
| - transitional, Qt | |||
| - nominal, Qnom | |||
| - largest, Qmax | |||
| 3 | Maximum volume of water, m3, measured per | ||
| - day | |||
| - month | |||
| 4 | Sensitivity threshold, m3/h, no more | ||
| 5 | Minimum division price of the counting mechanism, m3 | ||
| 6 | Counting mechanism capacity, m3 | ||
| 7 | Limits of permissible relative error, % | ||
| - in the flow range from Qmin to Qt | |||
| - in the flow range from Qt to Qmax | |||
| 8 | Temperature of the measured medium, °C | ||
| 9 | Pressure of the measured medium, MPa, no more | ||
| 10 | Pressure loss at highest consumption, MPa, no more | ||
| 11 | Ambient air temperature, °C | ||
| 12 | Relative humidity,%, no more | ||
| 13 | Weight, kg, no more | ||
| 14 | Overall dimensions, mm, no more (LxHxW) | ||
| 15 | Mean time between failures, hours, not less | ||
| 16 | Average service life, years, not less | ||
Dimensions and connecting dimensions Universal water meter with connectors, VSKM 90-15
Installation of a universal water meter with connectors, VSKM 90-15
Water meters are designed to be installed on horizontal section pipeline with a straight section of 5 DN before the meter and 2 DN after the meter (DN - nominal diameter).
Water meters can be installed on a vertical section of the pipeline. At the same time, they operate in a flow range corresponding to class A.
Vertical installation - class A
Horizontal installation - class B
Delivery set of universal water meter with connectors, VSKM 90-15
Water meter, VSKM 90-15 - 1 pc.
Connectors - 2 pcs.
Passport - 1 pc.
Packaging - 1 pc.
Test interval for universal water meter with connectors, VSKM 90-15
- for counters cold water- 6 years;
- for counters hot water- 6 years.
Documentation for Universal water meter with connectors, VSKM 90-15
- type approval certificate,
- certificate of conformity,
- hygiene certificate,
- type description,
- passport.
standard version:
modification of the counter with pulse output (DG):
flange version for VSKM 90 50F:
Advantages
- INTERVALIDATION INTERVAL 6 YEARS;
- ENCLOSURE PROTECTION DEGREE IP68;
- The water meter is multi-jet, due to the location of the impeller in a bowl with coaxial holes, this design is highly reliable, especially under conditions of sudden changes in pressure and flow;
- the length of the straight section is provided by a set of connecting parts included in the delivery set;
- fully complies with GOST R 50193 and the requirements of sanitary and epidemiological control;
- unique design of the water meter DN 50 - threaded and flanged (VSKM 90 "Atlant" 50F);
- maintaining the declared metrological characteristics throughout the entire service life even when working in unfavorable conditions;
- does not require gasket electrical networks– the meter is independent of power sources;
- high overload capacity for flow and pressure;
- for ease of reading, the counting mechanism rotates 350 degrees;
- low pressure loss;
- minimum costs for installation and operation;
- reliable structural protection from external magnetic influences;
- Reinforced bearings made of sapphire with low friction guarantee long term services;
- service life of at least 12 years.
Accuracy
The multi-jet design is highly reliable. The impeller is located in a protective bowl, which divides the flow into several jets, which equalizes the load on the impeller axis, thereby ensuring the best accuracy of readings and protection against water hammer. All this affects the long-term correct operation of the devices.
Reading
The counting mechanism provides display of readings in m³ and its fractions. The front panel of the counting mechanism contains a scoreboard of 8 drums, with printed 6 mm numbers. A specially selected font of numbers allows you to accurately determine meter readings from different viewing angles. The counting mechanism rotates 350 degrees, which ensures ease of use in any position and placement of the counter. In addition, the device has a special metal arrow indicator “MID-sensor” (in the DG version the arrow is made of plastic). In addition, the meter can be equipped with a pulse sensor (DG).
Principle of operation
The principle of operation of the water meter is to measure the speed of the impeller, which rotates under the influence of flowing water. The number of revolutions of the impeller is proportional to the amount of water flowing. The rotation of the impeller is transmitted to the counting mechanism through a magnetic coupling. The scaling gearbox of the counting mechanism adjusts the speed of the impeller to the values of flowed water in m³ and its fractions.
Equipment
- water meter;
- passport;
- set of connecting parts;
- reed sensor – for modification of diesel generator.
Specifications
Parameter name Standard for meters with nominal diameter, D U, mm 25 32 40 50 Metrological class A IN A IN A IN A IN Water consumption, m 3 /hour: - minimum consumption water q min
0,14 0,07 0,24 0,12 0,40 0,20 1,20 0,45 - transition water flow q t
0,350 0,280 0,600 0,480 1,000 0,800 4,500 3,000 - nominal (operating) water flow q n
3,5 6,0 10,0 15,0 - maximum water flow q max
7 12 20 30 Sensitivity threshold, m 3 / h, no more 0,02 0,03 0,05 0,10 Water temperature range °C - hot
from +5 to +120 - cold
from +5 to +50 Maximum pressure water, MPa 1,6 Minimum division price, m 3 0,0001 0,001 Highest value roller indicator, m 3 99999 999999 Mounting length L, mm 260 260 300 300
Prices for metering devices vary depending on the brand, smart components and technical characteristics. PK Pribor, a Russian company, has been working in this segment for a long time and produces VSKM 90-15 water, its price is affordable, and the quality, in some respects, is higher than foreign ones. In particular, Russian flow meters are better able to withstand externally directed magnetic fields.
Water meter VSKM 90-15, design and technical characteristics
Water meters intended for individual housing usually have a tachometer principle of operation. The VSKM water meter is not much different from its counterparts - it is a two-chamber device, where the counting device, located in a transparent capsule, is separated from the meter operating in a liquid medium.
A completely sealed counting mechanism allows for short-term immersion of the device in a liquid medium. In addition, dust and moisture do not enter the capsule, which prolongs the performance of the mechanism, which consists of many gears.
Visual reproduction of consumption data is made in the form of 8 digital windows with well-defined inscriptions. The ability to rotate the top chamber 360° creates additional convenience for users. That is why the VSKM 90-15 water meter receives mostly positive feedback from consumers.
The meter is in the form of an impeller, made of durable plastic, approved for production in Food Industry. The rotational moment from the impeller is transmitted to the scaling gearbox of the counting mechanism in a non-contact manner, through a magnetic coupling.
The lower chamber body is made of brass alloy, designed for precision machining. The high level of smoothness of the body and its additional coating with peel-resistant paint completely eliminates the ingress of harmful substances into drinking water. The leading magnetic coupling half, located in the “wet” chamber, is isolated from the influence magnetic field directed from the outside, by a special screen.
Operation of VSKM Atlant meters in automated systems in Moscow
Data accounting systems are being actively implemented in major cities. Despite the costs of its implementation, more and more residents of apartment complexes are switching to automated transmission of flow meter readings and condition monitoring utility networks. The VSKM 90-15 Atlant water meter integrates well into such systems; consumer reviews confirm this fact.
To successfully integrate devices into the system, the company produces water meters with a reed switch sensor and a universal MID sensor. Water meters with a pulse output are equipped with a sealed contact that interacts with a magnet located on the water flow indicator. The outputs from the reed switch are connected to the storage module, data transfer from it can be carried out both via wires and using radio communications and other technical means. The contact pulse is adjusted to a certain volume of water that has passed through the meter. The price of an impulse varies from 1 to 100 liters, and is set by the manufacturer.
The Pulse and Data Module (PDM) is a sensor that, using inductive coils, takes into account the revolutions of the water meter dial indicator. A sensor is attached to the arrow, just like in the pulse version. Using a non-contact method, the sensor, by changing the quality factor of the coils, due to the circular frequency of oscillations, determines the number of revolutions of the pointer. The MID sensor is installed on the meter in special sockets, without removing or disassembling the device.
The MID communication module is a self-sufficient element and remotely transmits data directly from the device, using the selected communication technology, to the base station. The built-in battery is designed for 8-9 years of continuous operation, and a stable signal is transmitted over a distance of up to 10 km. Besides:
- thanks to non-contact rotation control, the sensor does not affect the measuring qualities of the device;
- simple installation of the device on the front surface of the device;
- there is no clanging or rattling inherent in reed switches;
- recognizes the direction of movement of water flow;
- Additionally, it can collect information about abnormal operating conditions of the water meter.
VSKM 90-25 is suitable for house water metering units; its price is optimal and corresponds to the quality and reliability of the device. Our company, with high level competencies - will conduct preparatory work, will install and put into operation a house unit that takes into account the input water flow from the city network.
Purpose and scope of application of the universal water meter with connectors, VSKM 90-25
Water meters VSKM 90-25 designed for measuring the volume of network water according to SNiP 2.04.07 and drinking water according to GOST R 51232, flowing in the supply or return pipelines of closed or open heat supply systems, cold and hot water supply systems in the temperature range from 5 to 120 ° C at a pressure of no more than 1 .0 MPa. The meters have a counting mechanism with roller and pointer indicators showing the measured volume in m3 and its fractions.
Brief description of the universal water meter with connectors, VSKM 90-25
The operating principle of vane meters is based on measuring the number of revolutions of an impeller rotating at a speed proportional to the flow of water flowing in the pipeline.
Structurally, the meter consists of a housing with a filter, a measuring chamber and a counting mechanism placed in a glass made of non-magnetic material.
Water meters VSKM belong to the so-called “multi-jet” type of devices, when water enters the impeller through holes in the guide in which the impeller itself is located. This increases the accuracy of measurements, as well as the reliability of the water meter.
Main technical characteristics of the universal water meter with connectors, VSKM 90-25
| № | Parameter name | ||
| 1 | Metrological class | ||
| 2 | Water consumption, m3/h | ||
| - minimum, Qmin | |||
| - transitional, Qt | |||
| - nominal, Qnom | |||
| - maximum, Qmax | |||
| 3 | Maximum volume of water, m3, measured per | ||
| - day | |||
| - month | |||
| 4 | Sensitivity threshold, m3/h, no more | ||
| 5 | Minimum division price of the counting mechanism, m3 | ||
| 6 | Counting mechanism capacity, m3 | ||
| 7 | Limits of permissible relative error, % | ||
| - in the flow range from Qmin to Qt | |||
| - in the flow range from Qt to Qmax | |||
| 8 | Temperature of the measured medium, °C | ||
| 9 | Pressure of the measured medium, MPa, no more | ||
| 10 | Pressure loss at the highest flow rate, MPa, no more | ||
| 11 | Ambient air temperature, °C | ||
| 12 | Relative humidity,%, no more | ||
| 13 | Weight, kg, no more | ||
| 14 | Overall dimensions, mm, no more (LxHxW) | ||
| 15 | Mean time between failures, hours, not less | ||
| 16 | Average service life, years, not less | ||
Overall and connecting dimensions of the universal water meter with connectors, VSKM 90-25
Installation of a universal water meter with connectors, VSKM 90-25
Water meters are designed for installation on a horizontal section of a pipeline with a straight section of 5 DN before the meter and 2 DN after the meter (DN - nominal diameter).
Water meters can be installed on a vertical section of the pipeline. At the same time, they operate in a flow range corresponding to class A.
Vertical installation - class A
Horizontal installation - class B
Delivery set of universal water meter with connectors, VSKM 90-25
Water meter, VSKM 90-25 - 1 pc.
Connectors - 2 pcs.
Passport - 1 pc.
Packaging - 1 pc.
Test interval for universal water meter with connectors, VSKM 90-25
- for cold water meters - 6 years;
- for hot water meters - 6 years.
Hydraulic resistance VSKM 90-25
Graph of pressure loss on the VSKM 90-25 meter (third curve from the left) 
Documentation for Universal water meter with connectors, VSKM 90-25
- type approval certificate,
- certificate of conformity,
- hygiene certificate,
- type description,
- passport.
VSKM water meters are manufactured by PC Pribor. These are multi-jet vane devices for metering the consumption of hot and cold water. Various options devices differ in diameter of nominal diameter, installation length and volume of water passed through.
Why do you need a VSKM counter with a pulse output?
The VSKM meter is needed to accurately determine the volume of drinking or network water supplied in return and supply pipelines related to open or closed systems heating, hot and cold water supply. The temperature range at which the device can operate is from +5 to +90 o C. The pressure is not more than 1.6 MPa. The operation of the device is based on measuring the number of revolutions of the impeller, which rotates at a speed directly proportional to the flow of liquid through the pipeline.
The equipment has a dry-propelled design. The liquid contains only the impeller, which rotates during operation of the device. Between it and the counting mechanism, the kinematic connection is performed using magnetic interaction directly through the partition, which is sealed. The impeller has supporting elements, special counting mechanisms, which are equipped with special watch stones for long-term operation and optimal reliability of the metering device.
Types and features of VSKM meters
The equipment of the presented type is intended for domestic and general use. A wide range of devices are available for sale, which differ in application and other characteristics.
Household
Water meters for household use are intended to account for the consumption of drinking water. The devices are installed in private houses and cottages, country houses, apartments and small offices. The nominal diameter is 15-20 mm. For counters that are needed for home use, such parameters as accuracy, reliability, ease of operation and comfort in use are important.
Currently, such models of devices for domestic use are available on the market.
- VSKM 90 15;
- VSKM 90 20;
- VSKM 90 15 with pulse output.
- VSKM 90 20 with pulse output.
Structurally presented models contain a housing with a filter, counting mechanisms that are located in a glass made of a special non-magnetic material, as well as a measuring chamber.
The presented devices belong to a multi-jet type of measuring technology: water is sent through holes to the impeller in the guide where it is located. Thanks to this feature, the accuracy of measurements is significantly increased. In addition, we can talk about the reliability of the water meter.
Technical characteristics of VSKM 90-15 and VSKM 90-20.
| Parameter | VSKHM 90-15 | VSKHM 90-20 |
|---|---|---|
| Diameter (DN), mm | 15 | 20 |
| Pressure (Py), MPa | 1.6 | 1.6 |
| Height, mm | 85 | 85 |
| Width, mm | 190 | 230 |
| Mounting length | 80/110 | 130 |
| Minimum flow rate, m3/h | 0.06 | 0.1 |
| Nominal flow, m3/h | 1.5 | 2.5 |
| Maximum flow rate, m3/h | 3 | 5 |
| Accuracy class | A, B | A, B |
| Connection type | Threaded | Threaded |
| Temperature, °C | from +5 to +90 | from +5 to +90 |
| Weight, kg | 0.6 | 0.7 |
Common house
The devices are intended for installation on water supply units in shops, medium and small enterprises, residential buildings. They most often have a nominal bore diameter in the range of 25-50mm. The following models of meters for general house use are available for sale:
- VSKM 90-25;
- VSKM 90-32;
- VSKM 90-50.
- VSKM 90-50F.
VSKM 90 meters are highly reliable. They have special protection from the influence of impurities in the liquid (even if it is a fraction). If we talk about other models similar devices, in them the mechanism is connected by a shaft to the measuring part. The impeller is the only part that moves in the meters. To extend the life of the most vulnerable component of the meter design, it is made of a material that is resistant to the aggressive effects of hard water and neutral to electrical random fields.
Technical characteristics of VSKM 90-25, VSKM 90-32, VSKM 90-40 and VSKM 90-50.
| Parameter | VSKHM 90-25 | VSKHM 90-32 | VSKHM 90-40 | VSKHM 90-50 |
|---|---|---|---|---|
| Diameter (DN), mm | 15 | 20 | 50 | 50 |
| Pressure (Py), MPa | 1.6 | 1.6 | 1.6 | 1.6 |
| Height, mm | 120 | 120 | 155 | 185 |
| Width, mm | 260 | 260 | 300 | 300 |
| Mounting length | 260 | 260 | 300 | 300 |
| Minimum flow rate, m3/h | 0.07 | 0.12 | 0.2 | 0.45 |
| Nominal flow, m3/h | 3.5 | 6 | 10 | 15 |
| Maximum flow rate, m3/h | 7 | 12 | 20 | 30 |
| Accuracy class | A, B | A, B | A, B | A, B |
| Connection type | Threaded | Threaded | Threaded | Threaded |
| Temperature, °C | from +50 to +90* | from +50 to +90* | from +50 to +90* | from +50 to +90* |
| Weight, kg | 2.2 | 2.5 | 4.5 | 6 |
*There are modifications operating at temperatures from +5 to +120 o C.
terms of Use
Household and general house meters VSKM are designed for use in the same environment. Nevertheless, various models devices differ from each other in diameters, flow ranges, and overall lengths. It is recommended to clarify these parameters before purchasing the device.
Where are VSKM meters used?
Basically, meters of this type are used in everyday life. The main task is to account for hot and cold water. The presented models showed excellent results in measuring the volume of water that flows through city highway pipelines.
Depending on the model, it can be used on closed/open pipelines. The devices fully comply with generally accepted standards. A working pressure of 1.6 MPa is quite sufficient to perform routine measurements, as well as to protect against possible water hammer.
Features of installation of VSKM meters
Installation of meters must be carried out both on a horizontal section of the pipe and on a vertical one.
The VSKM water meter package includes a meter, components, passport and packaging.