Despite its simple design, the esbe three-way valve is one of those elements on which the life support of the entire house directly depends. Devices of this type are available for sale in several varieties.
general information
A three-way valve is a device for adjusting pipeline networks with liquid working medium. To explain it in a popular way, after being included in the heating system, the device will perform the function of a well-known mixer tap, the task of which is to switch or mix flows.
Thanks to the ESBE three-way valve, the following results are achieved:
- Redirecting streams from different networks.
- The working fluid is brought to the required temperature by mixing cold and hot fluid.
- Dynamic redirection makes it possible to obtain a stream of stable temperature.
Design features of the three-way valve ESBE
The three-way valve is adjusted using a rod or ball. In the first case, the adjusting element moves in the vertical direction, in the second - around its axis. This element moves in such a way that the flow of working fluid is not completely blocked: it is only mixed and redirected. The simplest example of such a device is a regular faucet. His strong point is simple design and low cost; weak – impossibility of obtaining a stable outlet temperature. Despite all their shortcomings, taps are widely used in underfloor heating systems.
If you introduce an electric drive into the design of a conventional faucet, you will be able to significantly increase its functionality: the device will be able to regulate the temperature of the liquid medium automatically. The task of simple balancing valves is to adjust the cross-section to the flow of the working flow.
The device works something like this:
- When the handle is turned halfway, the two flows are evenly mixed, which is ensured by the equality of the inlet valves.
- If you turn the handle all the way, the first valve will be pressed in, causing the liquid flow to be completely blocked.
For commercially available models, the knob turns may differ slightly, which does not in any way affect the principle of operation of the devices.
Main varieties
Three-way valves come in three types:
- Hydraulic.
- Electrically driven.
- Pneumatic.
Electrically driven devices (for example, the ESBE model) differ slightly in their operating principle. The electrical appendage acts here like a regular thermostat: thanks to it, the flows are not only mixed, but also maintained at the desired temperature. During a decrease or increase in temperature, the position of the shut-off valves is automatically changed. As a result, the flow cross-section increases or decreases. At the same time, the cross-section at the inlet of the cold flow changes, which makes it possible to impart a stable temperature to the outlet water. In this case, the three-way valve is completely dispensed with without human control: the control of the equipment falls on automation.
The ESBE valve with electric drive and thermostat can be successfully used in heating systems and hot water supply. Strictly speaking, such a valve can be equipped with any type of pipeline where it is necessary to mix two liquid streams and maintain a stable temperature. Even the highest quality and reliable models of a three-way valve with a thermostat have one common drawback for products of this type: the inlet points through which liquid flows are greatly narrowed. As a consequence, this provokes an increase in hydraulic resistance.
These types of taps are great for water pipes. ESBE valves are often equipped with heated floors, although a special connection diagram is used. Along with the modifications mentioned above, three-way thermostatic valves can be found on sale. Despite the apparent similarity of these devices, their functions differ in many ways. Thermostatic varieties use thermostats with a remote-type sensor. In addition, the operating principle here is also different.
Unlike standard models, thermostatic valves control flow at only one point. The other two inlets are in a permanently open position, with a stable cross-section. When purchasing such a design, it is important to test the second point for narrowness, otherwise difficulties in the operation of the device may arise due to high hydraulic resistance. If such a defect is detected, the problem can be solved by installing a mixing valve in an additional circuit.
ESBE tap connection principle
For the vast majority of commercially available three-way devices, one connection scheme is used. For example, you can consider installing an esbe three-way valve. It's better to start with plumbing system, where mixing taps are most often found. The valves in this case prevent the formation of reverse flow. The fact is that cold and hot flows have different pressures, which provokes differences. This may result in backflow. Systems with ESBE valves are completely safe in this regard.
In heating systems, only three areas can be equipped with devices of this type:
- Mixers for the "warm floor" system.
- Pipe entering the boiler. In this way, stabilization of the temperature of the coolant in the incoming pipeline is achieved.
- Outlet pipe to reduce the supply of heated coolant.
Mixing unit
The use of the esbe valve for heated floors has its own specifics. The location of the mixing unit is an additional circuit. Switching with the manifold-distributor is carried out through two points: this allows the coolant at the inlet to constantly circulate. The inlet flow is opened only when there is a need for additional heat.
The mixing unit is connected to the valve and thermostat. You need to understand that a thermostat for a water heated floor allows you to reduce heating costs. Considering the narrowness of all valves at point 2, the pump may encounter problems with insufficient flow. To solve the problem, it is necessary to install a second line that reduces the level of electricity consumption. But such a need does not always arise, because The cross-section of some three-way valves is quite large.
In a situation where the first line has insufficient flow power, the thermostat does not block the passage on the required scale.
To get out of this situation, two options are usually used:
- The second line will narrow.
- A balancing valve is installed.
The second method is considered more effective, because In this case, the flow is adjusted more accurately. There is another scheme for connecting an esbe three-way valve for a heated floor - connecting the pump to the second line: here a balancing valve is not needed. This allows you to level temperature regime in the input and output stream.
Installation of a faucet with a thermostat can be carried out in single-circuit systems. Their simplest variation is heated floors small area. In this case, using a large mixing unit is not very practical. A more expedient solution would be to connect a single-circuit heated floor. The installation of a three-way valve with a thermostat is carried out on the return pipe containing the cooled coolant. Thanks to the thermostat, shut-off valves are activated, which increases the cross-section. When the pipe heats up, the temperature sensor detects this and reduces the flow.
Application of valves for heating boilers
Three-way valves for heating boilers deserve special attention. They perform the task of preventing the cooled coolant from entering the pipeline entering the boiler. If this is not done, the pipes will begin to become covered with condensation, and a dangerous temperature difference will arise in the system. This is fraught with deformation of the connecting areas, the most harmless consequence of which will be the appearance of small leaks. If you do not react in time, the system may completely fail.
Particular responsibility should be taken when installing shut-off valves in the piping solid fuel boiler, during the operation of which significant temperature changes occur (read also: " "). The mixing valve allows you to protect the boiler equipment from the ingress of coolant with a temperature below +50 degrees. This reduces the temperature difference, which has a beneficial effect on the efficiency and durability of the system.
Experts recommend using mixing valves also in systems with plastic pipelines. Although polymer communications have a number of advantages, frequent excesses of operating temperature parameters have a destructive effect on them. According to standards, the most comfortable temperature range is in the range of +75-85 degrees. Valves protect plastic pipes from many negative consequences. The selection of a device model must be taken responsibly, taking into account the technical characteristics utility network.
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In the wide range of shut-off valves used in heating networks, there is one element that is rarely used. It is similar in shape to a tee, but internal filling very different from the latter. And its purpose is completely different. This is a three-way valve for heating with a thermostat. The installation diagram, as well as the principle of operation, will be discussed in today's review.
Three-way valve with zone type thermal head
Three-way valves are mainly divided according to their operating principle. There are three positions here:
- mixing,
- dividing,
- switchable.
The former mix two coolant flows with different temperatures into one, while the latter, on the contrary, divide one flow into two. And still others simply switch the movement of water from one direction (circuit) to another. The first two varieties appearance They are similar to each other, so a diagram is applied to their body, which shows for what purposes the device should be used.
As for the third position, it is easy to distinguish it from the rest. It additionally has a block with the help of which switching occurs. A valve of this type is usually installed in a dual-circuit system when it is necessary to redirect the flow from the heating system to and vice versa.
Related article:
The design and principle of operation of a three-way valve in a heating system
So, first of all, let's look at the device. To make it easier to understand what’s inside the valve, you need to look at the photo below, which shows the device in cross-section. It consists of three pipes (two side, one bottom), between which the mixing chamber is located. On the fourth side (top) there is a thermal head responsible for controlling the temperature of the coolant.
Inside the device, from the thermostat there is a spring-loaded rod with two flat round valves. Their diameter corresponds to the diameter of the nozzle seats. Instead, one ball valve can be installed, located inside the mixing chamber between two seats. When there is pressure on the rod, the valves partially block the flow from the lower pipe and open the upper one. The same thing only happens the other way around if the rod rises up.
But here you need to figure out what laws the rod works by, under what force it lowers or rises. It's all about the thermal head itself. Inside it is a temperature sensor filled with a special liquid. She is heat sensitive. As soon as the temperature of the coolant begins to rise, the liquid expands and rises through the capillary tube into a special bellows (container), which is located in the thermal head. The reservoir itself begins to expand, which puts pressure on the rod. The latter lowers and opens the lower pipe, from where it enters the three-way valve cold water. Hot water comes from the left pipe (see photo).
Of course, pressure simply cannot happen with any increase in water temperature. To do this, a temperature gradation is installed on the thermal head, which is adjusted manually. It is the set parameter that is the moment of pressing the rod.
So, the rod reacted to a change in the temperature of the coolant in the supply pipe, opened the lower one for cold water, and inside the valve the hot and cold media mixed until required temperature. That is, it turns out that the temperature of the coolant at the inlet has not changed, but at the outlet it has become lower.
If the coolant continues to heat up, the rod can drop to the lowest possible position. That is, it will completely close the supply hot water and will completely open the cold supply. And this will continue until the coolant inside the heating system drops to the required temperature. After which the top valve will open, it will release hot water.
This is how a three-way mixing control valve works. As for the separation model, its operating principle is almost the same, only in reverse. The coolant enters one pipe; inside the device body it is divided into two streams and exits through two adjacent pipes.
This type of shut-off valve is installed in those areas where the coolant flow needs to be divided into two circuits. One of them will have a constant thermal regime, the other will have a variable one. The first is the fluid flow, which has quality requirements. The second with quantity requirements. In this case, purely structurally, the flow with a constant hydraulic regime is never blocked, because in the design of the device the length of the rod is made in such a way that the valve does not close the constant circuit.
But it is necessary to indicate that the length of the rod can be adjusted. This makes it possible to adjust the required volume of coolant on a constant circuit. As for the variable, it can completely overlap. This is how the flow and pressure of the coolant in the heating system is regulated. As you can see, the operating principle of a three-way valve is quite simple. The main thing is to accurately select the type of device and install it in the required location in the circuit.
How does a three-way thermostatic valve work in a heated floor system?
To make it clear how the valve circuit works, we can give an example of coolant circulation in a heated floor system. The three-way valve for underfloor heating is a mixing valve. The circulation scheme here is as follows:
- hot water enters the underfloor heating system through the collector;
- it must have a certain temperature, which is monitored precisely as it passes through the three-way valve;
- as soon as its value exceeds the permissible value, the valve opens one of the circuits, which is connected to the heating return;
- cooled coolant enters inside, lowering the temperature,
- after which the mixed water enters the heating circuit of the heated floor;
- as soon as the temperature drops to the required value, the return circuit inside the valve is closed with a rod.
Three-way valves with actuators
Experts say that adjusting a three-way valve using a thermal head and sensor is the simplest and most accurate. In addition, there is no energy consumption. This is why this type of three-way valve is popular today. But you can control the process in other ways. The simplest one is manual. Let's face it, it's not the most accurate option, because the range of the rod's immersion depth is set by a handle located outside the valve body.
Attention! A valve with such an adjustment is recommended to be used only in those heating systems where the temperature differences of the coolant are insignificant.
The second option is temperature control using electric drives. They receive commands from the controller.
Motorized 3-way valve
Motors mounted on valves are often called servos. In fact, these are ordinary electric motors in which the shaft does not rotate, but rotates by a certain degree. It should be noted that this category includes any types of engines, for example, thermal ones. The main thing is to fulfill the condition of rotation, not rotation.
Manufacturers today offer two items regarding configuration. The first is a complete package that includes a controller and temperature sensor. It is possible to immediately adjust the device to the required temperature, as well as to the rotation angle, for example, from 0 to 180°. In this case, any intermediate values are possible. The second is a separate drive with a sensor inside, to which you need to add a controller as a separate element.
As for the controller, it is a device that solves problems of signal management. In the case of heating, it reacts to temperature changes that are signaled to it by a temperature sensor. It processes the signals and decides what to do - open the valve or close it, or rather, turn it clockwise or counterclockwise. Today, manufacturers offer a huge model line of three-way valves with electric drives. One of the most popular brands is “ESBE” (Sweden).
Electrically actuated 3-way valve ESBE
First of all, it should be noted that this brand of valve has a ball inside with through slots. The latter open or close two channels, the third always remains open. Through it, coolant enters the heating system. Rotation degree – 90÷180°.
In stores, the valve of this model is sold separately from the servo drive, so before installation they are connected to each other by inserting the actuator axis (shaft) into the upper part of the rod. There is a hole in it for the axle. After that, you need to carry out adjustments in terms of temperature conditions exactly according to the instructions included with the device.
Today, the manufacturer offers a fairly wide range of ESBE three-way valves with and without a drive:
| Photo | Model | Purpose |
|---|---|---|
 | VTA 200 | Designed for systems where there is no water recirculation. |
 | VTA 270 | This is thermo mixing valve for heated floors. It is installed if heating is organized in a room with an area of at least 100 m² |
 | VTA 310 | Valve for general use in any heating systems where the coolant temperature does not exceed +95°C and the pressure is 0.3 atm. |
 | VTA 300/ VTA 360 | The two models differ from each other only in the direction of movement of water in the heating system. The temperature is well controlled even during pressure surges within the network. |
 | VTC300 | This is a three-way valve without servomotor. It can be installed in systems that use low-power boilers– up to 30 kW. |
 | DN25 | This is a three-way valve for solid fuel boilers. That is, it can withstand coolant temperatures up to +110°C. In this case, the boiler power should not be less than 150 kW. This is one of the most unpretentious devices on the market. It can work under any conditions in any heating networks without changing quality. |
 | VRG131 | This is the most popular and in demand device, which is used in apartments and private houses. |
Other models of three-way valves
Another famous brand– Navien three-way valve from a South Korean company. It should be noted that this device is an integral part of the double-circuit boiler of this manufacturer. And it is installed inside the heating equipment. Its main purpose is to separate the coolant into the heating network and the hot water supply.
Attention! Navien valves cannot be repaired. The main cause of failure is the gear transmission from the motor to the rod. Spare parts are not sold anywhere. If the device fails, it must be replaced with a new one.
Danish company Danfoss – famous manufacturer three-way valves. It offers four models that are designed for different systems:
| Photo | Model | Purpose |
|---|---|---|
 | VF3 | Used in air conditioning and heating systems. Manufacturing material – cast iron. With flange connection. |
 | VMV | For use in heating systems only. Material of manufacture: bronze or stainless steel. |
 | VRB3 | This is a mixer that is used both in heating systems and in refrigeration units. Material – stainless steel. |
 | VRG3 | Installed in heating networks or when transporting refrigerant. The material is either stainless steel or cast iron. |
Connection diagrams for a three-way valve to a heating network
After all the analysis regarding the design of the valve and its operating principle, an understanding emerged of how it can be used in various heating systems. Most often it is used in three cases.
- In a heated floor system, the coolant temperature should be within +45°C. It is this mode that is supported by the device. This has already been discussed above, and it has been shown how it should work.
- To protect against the formation of condensation inside the firebox. This happens when relatively very cold return water enters the generator heat exchanger. This causes water droplets from condensed steam to form on the outer surfaces. This should not be allowed, because condensation shortens the life of the equipment.
- If there is a need to maintain different temperatures in different parts heating system.
The first option will not be considered, because it has already been described. As for the second case, we need to take the photo below as a basis for analysis.
The diagram shows a double circuit: one large one passes through the radiators, the second a short one through (this is a vertical red line, the beginning of which is at the top to the radiators, the end rests at the bottom of the valve). Until the boiler warms up, the coolant moves along a short circuit. The temperature has risen to the required level, the valve closes the bypass and opens the return (lower blue line).
And the third position, which is based on the distribution of coolant among consumers, in them the required temperature is not always the same. For example, for a boiler indirect heating water with a higher temperature is required, for batteries with a lower temperature, and for heated floors even less.
Attention! In such a scheme, there is no need to install control shut-off valves in front of the boiler.
The wiring diagram for installing a three-way valve should be approximately as shown in the photo below.
Three-way valves for heating with a fixed coolant temperature
This is the so-called a budget option. In terms of price, it is 30-35% cheaper than devices with drives. How is he different from everyone else? There are no rods, sensors, or thermal heads in its design. There is a so-called thermostatic element installed inside, which is set to a certain coolant temperature. For example, it can be either +45°C or +65°C. That is, the indicator can be anything depending on the requirements of the hot water consumer.
The element is selected at the factory and installed there, so it is necessary to indicate on the valve what the outlet temperature will be after it. For example, if you need a valve for a heated floor, then choose one with a temperature of +45°C. On the positive side The main advantage of these devices is their low cost. Negative – the inability to adjust the temperature of the water.
Attention! If a valve of this type is installed on the bypass of a solid fuel boiler, then it is necessary to study the passport of the generator itself before purchasing. The main indicator for the valve is the temperature of the water in the return circuit. It is for this reason that the device is selected.
The Swedish company ESBE has been a recognized leader in the field of water heating and cooling control systems for many years. ESBE three-way mixing valves series VRG 131 and 3F, as well as electric drives ESBE ARA and 90 series are an example of excellent quality and reliability at an affordable price. Esbe's wide range of mixing valves allows you to make optimal choice depending on system requirements. The materials used are high-quality brass alloys or cast iron. Valves are available with threaded or flanged connections.
| Model | vendor code | DN, mm | Connection | Kvs, m³/hour | Weight, kg | Replaces |
|---|---|---|---|---|---|---|
| VRG131-15-0.4 price >> | 11600100 | 15 | Rp 1/2" | 0,4 | 0,40 | - |
| VRG131-15-0.63 price >> | 11600200 | 15 | Rp 1/2" | 0,63 | 0,40 | - |
| VRG131-15-1 price >> | 11600300 | 15 | Rp 1/2" | 1,0 | 0,40 | - |
| VRG131-15-1.6 price >> | 11600400 | 15 | Rp 1/2" | 1,6 | 0,40 | - |
| VRG131-15-2.5 price >> | 11600500 | 15 | Rp 1/2" | 2,5 | 0,40 | 3MG15, 3G15 |
| VRG131-15-4 price >> | 11600600 | 15 | Rp 1/2" | 4,0 | 0,40 | - |
| VRG131-20-2.5 price >> | 11600700 | 20 | Rp 3/4" | 2,5 | 0,43 | - |
| VRG131-20-4 price >> | 11600800 | 20 | Rp 3/4" | 4,0 | 0,43 | - |
| VRG131-20-6.3 price >> | 11600900 | 20 | Rp 3/4" | 6,3 | 0,43 | 3MG20, 3G20 |
| VRG131-25-6.3 price >> | 11601000 | 25 | Rp 1" |
6,3 | 0,70 | - |
| VRG131-25-10 price >> | 11601100 | 25 | Rp 1" |
10 | 0,70 | 3MG25, 3G25 |
| VRG131-32-16 price >> | 11601200 | 32 | Rp 1 1/4" | 16 | 0,95 | 3MG32, 3G32 |
| VRG131-40-25 price >> | 11603400 | 40 | Rp 1 1/2" | 25 | 1,68 | 3G40 |
| VRG131-50-40 price >> | 11603600 | 50 | Rp 2" |
40 | 2,30 | 3G50 |
| VRG132-25-10 price >> | 11602500 | 25 | G 1 1/4" | 10 | 0,70 | 3MGA25 |
| VRG132-32-16 price >> | 11602600 | 32 | G 1 1/2" | 16 | 0,95 | 3MGA25 |
 |
Flanged mixing valves Esbe 3F, 4FMixing flange valves ESBE 3F, 4F are made of cast iron and are widely used in heating and cooling systems. Esbe 3F valves can be used in closed systems with water that does not contain dissolved oxygen. When the Esbe 3F, 4F valve operates, the hotter coolant is mixed with the cold one entering the boiler, which ensures an increase in the temperature of the coolant returning to the boiler. This reduces the risk of low-temperature corrosion. The valves are manufactured in sizes DN 32-150. Flange connections, cast iron body, brass spool, EPDM seal, T=-10C...110C. Pmax=6 bar |
| Model | vendor code | DN, mm | Torque required drive, Nm |
Kvs, m³/hour | Weight, kg |
|---|---|---|---|---|---|
| 3F-20 price >> | 11100100 | 20 | 3 | 12 | 3,5 |
| 3F-25 price >> | 11100200 | 25 | 3 | 18 | 4,0 |
| 3F-32 price >> | 11100300 | 32 | 5 | 28 | 5,9 |
| 3F-40 price >> | 11100400 | 40 | 5 | 44 | 6,8 |
| 3F-50 price >> | 11100600 | 50 | 10 | 60 | 9,1 |
| 3F-65 price >> | 11100800 | 65 | 10 | 90 | 10,0 |
| 3F-80 price >> | 11101000 | 80 | 10 | 150 | 16,2 |
| 3F-100 price >> | 11101200 | 100 | 15 | 225 | 21,0 |
| 3F-125 price >> | 11101400 | 125 | 15 | 280 | 27,0 |
| 3F-150 price >> | 11101600 | 150 | 15 | 400 | 37,0 |
| 4F-50 price >> | 11101900 | 50 | 10 | 60 | 11,0 |
| 4F-65 price >> | 11102000 | 65 | 10 | 90 | 12,2 |
| 4F-80 price >> | 11102100 | 80 | 10 | 150 | 20,0 |
| 4F-100 price >> | 11102200 | 100 | 15 | 225 | 25,0 |
 |
Electric drives, Esbe ARA 600 drives for three-way mixing valves.Esbe ARA 600 actuators are designed to automate the control of valves of the VRG, VRB, MG, G, F series< DN50. Выпускаются для 24В и 230 В (частота 50 Гц). Некоторые виды клапанов и приводов сконструированы таким образом, что между ними образуется специальное соединение «клапан – привод», образующее устройство с уникальными характеристиками точности и устойчивости. Диапазон действия приводов составляет от 90°. Разные модели предусматривают разное время закрывания, в среднем от 15 до 240 секунд. Надёжность, экономичность и комфорт в использовании – главные принципы, которыми руководствуются специалисты компании Esbe при разработке Esbe servo drives ARA. |
| Model | vendor code | Email nutrition | Time closing |
Control | An effort | Replaces |
|---|---|---|---|---|---|---|
| ARA639 price >> | 12520100 | AC/DC 24 V | 15/30/60/120 sec. |
0-10V/4-20mA |
6 Nm |
- |
| ARA642 price >> | 12101600 | AC 230 V | 30 sec. |
3-point with additional off |
6 Nm | - |
| ARA651 price >> | 12101200 | AC 230 V | 60 sec. |
3-point | 6 Nm | 65 |
| ARA652 price >> | 12101700 | AC 230 V | 60 sec. | 3-point with additional off | 6 Nm | 65M |
| ARA655 price >> | 12120900 | AC 230 V | 60 sec. | 2-point | 6 Nm | 68 |
| ARA659 price >> | 12520200 | AC/DC 24 V | 45/120 sec. | 0-10V/4-20mA | 6 Nm | 62P |
| ARA661 price >> | 12101300 | AC 230 V | 120 sec. | 3-point | 6 Nm | 66 |
| ARA662 price >> | 12101800 | AC 230 V | 120 sec. | 3-point with additional off | 6 Nm | 66M |
| ARA663 price >> | 12100300 | AC 24 V | 120 sec. | 3-point | 6 Nm | 62 |
| ARA664 price >> | 12100800 | AC 24 V | 120 sec. | 3-point with additional off | 6 Nm | 62M |
 |
Electric drives, Esbe series 90 drives.Esbe series 90 compact reversible actuators are designed to control Esbe control valves of sizes DN 15-150, torque 5-15 Nm. These servo drives are supplied in three versions depending on the type of control signal: 2-point, 3-point or proportional, equipped with limit switches in extreme positions and have the ability to adjust the operating angle in the range of 30–180°. The Esbe 90 electric drive allows you to control the valve in manual mode, and the position is displayed on the indicator disk. In this series, actuators are available with both 24 V and 230 V power supplies and with different opening times. Esbe Series 90 actuators work effectively with the VRG100, VRG200, VRG300, VRB100, F, MG, G, BIV and H series valves. |
| Model | vendor code | Email nutrition | Time closing |
Control | An effort |
|---|---|---|---|---|---|
| 92 price >> | 12050600 | AC 24 V | 60 sec. |
3-point | 15 Nm |
| 92P price >> | 12550100 | AC/DC 24 V | 60/90/120 sec. | 0-10V/4-20mA | 15 Nm |
| 93 price >> | 12051300 | AC 24 V | 240 sec. |
3-point | 15 Nm |
| 94 price >> | 12051700 | AC 230 V | 15 sec. | 3-point | 5 Nm |
| 95 price >> | 12051900 | AC 230 V | 60 sec. |
3-point | 15 Nm |
| 95-2 price >> | 12052000 | AC 230 V | 120 sec. |
3-point | 15 Nm |
| 95M price >> | 12052200 | AC 230 V | 60 sec. | 3-point with additional off | 15 Nm |
| 95-2M price >> | 12052100 | AC 230 V | 120 sec. | 3-point with additional off | 15 Nm |
| 96 price >> | 12052300 | AC 230 V | 240 sec. |
3-point | 15 Nm |
| 97 price >> | 12052500 | AC 230 V | 15 sec. |
2-point | 5 Nm |
| 98 price >> | 12052600 | AC 230 V | 60 sec. |
2-point | 15 Nm |
 |
Esbe controllers of the CRB, CRA, 90C, CUA series.Esbe's modern CRB, CRA, 90C and CUA series controllers have been designed to provide more high level comfort and energy savings. The CRA series includes combined drives and constant temperature controllers with the ability to regulate temperatures from 5 to 95°C. CRB controllers with integrated drive and user-friendly interface consist of a drive and a display with sensor room temperature, based on the readings of which the adjustment is made. ESBE CRB and CRA controllers are used with valves of the following series: VRG100, VRG200, VRG300, VRB100, G, BIV, H and HG, F<=DN40, Для клапанов серии F предназначены контроллеры CRA120, CRB 120. |
| Model | vendor code | Email nutrition | Time closing |
An effort |
|---|---|---|---|---|
| CRA111 price >> | 12720100 | AC 230 V | 30 sec. |
6 Nm |
| CRA121 price >> | 12742100 | AC 230 V | 120 sec. | 15 Nm |
| CRA122 price >> | 12742200 | AC 24 V | 120 sec. | 15 Nm |
| CRB111 price >> | 12660100 | AC 230 V | 30 sec. | 6 Nm |
| CRB114 price >> | 12661400 | AC 230 V | 30 sec. | 6 Nm |
| CRB122 price >> | 12662200 | AC 230 V | 30 sec. | 6 Nm |
| CRC111 price >> | 12820100 | AC 230 V | 30 sec. | 6 Nm |
| CRC121 price >> | 12842100 | AC 230 V | 120 sec. | 15 Nm |
| CUA111 price >> | 12640100 | AC 230 V | 120 sec. | 15 Nm |
| CUA122 price >> | 12642200 | AC 230 V | 120 sec. | 15 Nm |
| 90C-1A-90 price >> | 12601500 | AC 230 V | 120 sec. | 15 Nm |
| 90C-1B-90 price >> | 12601600 | AC 230 V | 120 sec. | 15 Nm |
| 90C-1C-90 price >> | 12601700 | AC 230 V | 120 sec. | 15 Nm |
| 90C-3B-90 price >> | 12603600 | AC 230 V | 120 sec. | 15 Nm |
| 90C-3C-90 price >> | 12603700 | AC 230 V | 120 sec. | 15 Nm |
 |
Thermostatic mixing valves Esbe VTA320, VTA370, VTA570Esbe thermostatic valves of the basic series VTA 320, VTA 370 have a high throughput and have increased functionality. Depending on the model, they can be used in domestic hot water supply and underfloor heating systems. The main functions of these valves are asymmetric flow direction and burn protection. Anti-scald protection is based on automatically stopping the hot water supply when the cold water supply stops. Coupling connection, valve body - DZR brass, spool - brass, EPDM seal, PN=10, coolant temperature max. 95C. |
| Model | vendor code | Accession | Kvs, m³/hour | Pace. range, °С | Weight, kg |
|---|---|---|---|---|---|
| VTA321-15 price >> | 31100300 | Rp 1/2" | 1,5 | 20 - 43 | 0,45 |
| VTA321-20 price >> | 31100700 | Rp 3/4" | 1,6 |
20 - 43 | 0,48 |
| VTA321-20 price >> | 31100800 | Rp 3/4" | 1,6 |
35 - 60 |
0,48 |
| VTA322-25 price >> | 31101000 | G 1" | 1,6 |
35 - 60 | 0,48 |
| VTA372-25 price >> | 31200100 | G 1" | 3,4 |
20 - 55 |
0,52 |
| VTA572-25 price >> | 31702100 | G 1" | 4,5 |
20 - 55 | 0,86 |
VLA121 Series 2-Way Control Valve
| Model | vendor code | DN | Kvs, m³/hour | Accession | Bec, kg |
|---|---|---|---|---|---|
| VLA121-15-1.6 | 21150100 | 15 | 1.6 | Rp 1/2" | 1.0 |
| VLA121-15-2.5 price >> | 21150200 | 15 | 2.5 | Rp 1/2" | 1.0 |
| VLA121-15-4 price >> | 21150300 | 15 | 4 | Rp 1/2" | 1.0 |
| VLA121-20-6.3 price >> | 21150400 | 20 | 6.3 | Rp 3/4" | 1.2 |
| VLA121-25-10 price >> | 21150500 | 25 | 10 | Rp 1" | 1.3 |
| VLA121-32-16 price >> | 21150600 | 32 | 16 | Rp 1 1/4" | 1.8 |
| VLA121-40-25 price >> | 21150700 | 40 | 25 | Rp 1 1/2" | 2.7 |
| VLA121-50-38 price >> | 21150800 | 50 | 38 | Rp 2" | 4.2 |
VLA131 Series 3-Way Control Valve
| Model | vendor code | DN | Kvs, m³/hour | Accession | Bec, kg |
|---|---|---|---|---|---|
| VLA131-15-1.6 | 21150900 | 15 | 1.6 | Rp 1/2" | 1.1 |
| VLA131-15-2.5 | 21151000 | 15 | 2.5 | Rp 1/2" | 1.1 |
| VLA131-15-4 price >> | 21151100 | 15 | 4 | Rp 1/2" | 1.1 |
| VLA131-20-6.3 price >> | 21151200 | 20 | 6.3 | Rp 3/4" | 1.3 |
| VLA131-25-10 price >> | 21151300 | 25 | 10 | Rp 1" | 1.5 |
| VLA131-32-16 price >> | 21151400 | 32 | 16 | Rp 1 1/4" | 2.1 |
| VLA131-40-25 price >> | 21151500 | 40 | 25 | Rp 1 1/2" | 3.0 |
| VLA131-50-38 price >> | 21151600 | 50 | 38 | Rp 2" | 4.7 |
VLE122 Series 2-Way Control Valve
| Model | vendor code | DN | Kvs, m³/hour | Accession | Bec, kg |
|---|---|---|---|---|---|
| VLE122-15-0.25 | 21250100 | 15 | 0.25 | G 1" | 1.0 |
| VLE122-15-0.4 price >> | 21250200 | 15 | 0.4 | G 1" | 1.0 |
| VLE122-15-0.63 price >> | 21250300 | 15 | 0.63 | G 1" | 1.0 |
| VLE122-15-1 price >> | 21250400 | 15 | 1 | G 1" | 1.0 |
| VLE122-15-1.6 price >> | 21250500 | 15 | 1.6 | G 1" | 1.0 |
| VLE122-15-2.5 price >> | 21250600 | 15 | 2.5 | G 1" | 1.0 |
| VLE122-15-4 price >> | 21250700 | 15 | 4 | G 1" | 1.0 |
| VLE122-20-6.3 price >> | 21250800 | 20 | 6.3 | G 1 1/4" | 1.2 |
| VLE122-25-10 price >> | 21250900 | 25 | 10 | G 1 1/2" | 1.4 |
| VLE122-32-16 price >> | 21251000 | 32 | 16 | G 2" | 1.8 |
| VLE122-40-25 price >> | 21251100 | 40 | 25 | G 2 1/4" | 2.6 |
| VLE122-50-38 price >> | 21251200 | 50 | 38 | G 2 3/4" | 4.3 |
VLE132 Series 3-Way Control Valve
| Model | vendor code | DN | Kvs, m³/hour | Accession | Bec, kg |
|---|---|---|---|---|---|
| VLE132-15-1.6 | 21251300 | 15 | 1.6 | G 1" | 1.1 |
| VLE132-15-2.5 price >> | 21251400 | 15 | 2.5 | G 1" | 1.1 |
| VLE132-15-4 price >> | 21251500 | 15 | 4 | G 1" | 1.1 |
| VLE132-20-6.3 price >> | 21251600 | 20 | 6.3 | G 1 1/4" | 1.3 |
| VLE132-25-10 price >> | 21251700 | 25 | 10 | G 1 1/2" | 1.6 |
| VLE132-32-16 price >> | 21251800 | 32 | 16 | G 2" | 2.0 |
| VLE132-40-25 price >> | 21251900 | 40 | 25 | G 2 1/4" | 2.9 |
| VLE132-50-38 price >> | 21252000 | 50 | 38 | G 2 3/4" | 4.6 |
VLA325 Series 2-Way Control Valve
| Model | vendor code | DN | Kvs, m³/hour | Rod stroke, mm | Bec, kg |
|---|---|---|---|---|---|
| VLA325-15-1.6 price >> | 21200100 | 15 | 1.6 | 20 | 2.1 |
| VLA325-15-2.5 price >> | 21200200 | 15 | 2.5 | 20 | 2.1 |
| VLA325-15-4 price >> | 21200300 | 15 | 4 | 20 | 2.1 |
| VLA325-20-6.3 price >> | 21200400 | 20 | 6.3 | 20 | 2.6 |
| VLA325-25-10 price >> | 21200500 | 25 | 10 | 20 | 3.2 |
| VLA325-32-16 price >> | 21200600 | 32 | 16 | 20 | 4.6 |
| VLA325-40-25 price >> | 21200700 | 40 | 25 | 20 | 5.8 |
| VLA325-50-38 price >> | 21200800 | 50 | 38 | 20 | 8.0 |
VLB325 Series 2-Way Control Valve
| Model | vendor code | DN | Kvs, m³/hour | Rod stroke, mm | Bec, kg | Replaces |
|---|---|---|---|---|---|---|
| VLB325-65-63 price >> | 21220100 | 65 | 63 | 25 | 23.0 | VLB225 21203100 |
| VLB325-80-100 price >> | 21220200 | 80 | 100 | 45 | 30.0 | VLB225 21203200 |
| VLB325-100-130 price >> | 21220300 | 100 | 130 | 45 | 45.6 | VLB225 21203300 |
| VLB325-125-200 | 21220400 | 125 | 200 | 45 | 55.0 | VLB225 21203400 |
| VLB325-150-300 | 21220500 | 150 | 300 | 45 | 71.0 | VLB225 21203500 |
VLA335 Series 3-Way Control Valve
| Model | vendor code | DN | Kvs, m³/hour | Rod stroke, mm | Bec, kg |
|---|---|---|---|---|---|
| VLA335-15-1.6 | 21200900 | 15 | 1.6 | 20 | 2,5 |
| VLA335-15-2.5 price >> | 21201000 | 15 | 2.5 | 20 | 2,5 |
| VLA335-15-4 price >> | 21201100 | 15 | 4 | 20 | 2,5 |
| VLA335-20-6.3 price >> | 21201200 | 20 | 6.3 | 20 | 3,2 |
| VLA335-25-10 price >> | 21201300 | 25 | 10 | 20 | 3,8 |
| VLA335-32-16 price >> | 21201400 | 32 | 16 | 20 | 6,6 |
| VLA335-40-25 price >> | 21201500 | 40 | 25 | 20 | 7,5 |
| VLA335-50-38 price >> | 21201600 | 50 | 38 | 20 | 10 |
VLB335 Series 3-Way Control Valve
| Model | vendor code | DN | Kvs, m³/hour | Rod stroke, mm | Bec, kg | Replaces |
|---|---|---|---|---|---|---|
| VLB335-65-63 price >> | 21221100 | 65 | 63 | 25 | 19.0 | VLB235 21203600 |
| VLB335-80-100 price >> | 21221200 | 80 | 100 | 45 | 24.0 | VLB235 21203700 |
| VLB335-100-130 price >> | 21221300 | 100 | 130 | 45 | 32.0 | VLB235 21203800 |
| VLB335-125-200 | 21221400 | 125 | 200 | 45 | 46.0 | VLB235 21203900 |
| VLB335-150-300 | 21221500 | 150 | 300 | 45 | 61.0 | VLB235 21204000 |
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Seat control valves ESBE VLC125ESBE VLC125 2-way flanged control valves are used to regulate the flow of coolant. The valves are made of high-strength cast iron, which allows their use in heating and cooling systems with pressures up to 25 bar. VLC125 series has flange connections and is produced in sizes DN15-DN50. The valves are designed for automatic operation in combination with ESBE electric drives. | ||||
| VLC125-40-16 | 21302600 | 40 | 16 | 20 | 7.7 |
| VLC125-40-25 price >> | 21301100 | 40 | 25 | 20 | 8.8 |
| VLC125-50-38 price >> | 21301200 | 50 | 38 | 20 | 12.6 |
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Electric actuators for seated control valves ESBEESBE series of linear actuators available in 230 V or 24 V, with analogue or pulse control. The actuators have different forces and are adapted for valves with different strokes. A separate line of actuators with a return spring is also presented. Depending on the model, valves equipped with such actuators can be normally closed or normally open. ALD121 22150500AC/DC 24 V |
2200 |
20 sec. | ALD144 22151200 | ||
| ALH134 price >> | 22220100 | 3-position/0...10 V | AC/DC 24 V | 900 |
15 sec. |
- |
| ALH234 price >> | 22221100 | 3-position/0...10 V | AC/DC 24 V | 900 |
15 sec. | - |
Three way mixing valve has a fairly simple device. It consists of a body with two inputs and one output, as well as a specially shaped rod on which a handle (for manual control) or an electric drive (for automatic control of the flow temperature) is installed. The rod is capable of rotating along a vertical axis, blocking to one degree or another the inlet of hot or cold water, due to which a certain flow ratio is created and, as a result, a mixture of a given temperature is obtained at the output. The body material of a three-way valve is most often brass alloy or cast iron. The rod is made of brass, cast iron or stainless steel.
Three way valve control is carried out using an electric drive mounted on the rod, which is supplied separately. The main characteristics of electric drives are: time of rotation of the rod by 90 degrees; the force with which the drive is capable of rotating the rod; electrical voltage and control signal (two-point, three-point, proportional). The electric drive receives a signal from the general building controller, which, based on the readings of various temperature sensors, calculates the position of the three-way valve stem to obtain the specified outlet temperature of the coolant.
Selecting an electric drive for a rotary three-way mixing valve. For coupling mixing valves ESBE actuators of the ARA600 series are used, for flanged cast iron valves - ESBE 90 series. If the valve is to be used as a diverter, the actuator must be with 2-position control. If used as a mixer, then 3-point control or proportional control is required: 0-10V signal. Next, select the desired combination of stem rotation time and valve purpose. For domestic hot water supply, 60 seconds will be enough, and to supply coolant to radiators, electric drives with a rod rotation time of 120 seconds are most often used. If it is necessary to control external equipment depending on the position of the valve (for example, turn off an unnecessary pump, etc.), we determine whether an auxiliary switch is needed. When all the technical characteristics of the electric drive are determined, it will not be difficult to choose from the presented models exactly the one that will perform all the specified functions.
Esbe valves are one of the most reliable and functional components used in various systems ah water supply, including domestic and main. It has a very wide model range, which includes: rotary vrg131, dn25, as well as other popular varieties.
Currently, a three-way rotary sample of such equipment can be installed in every home. In order to do this correctly, let's understand the intricacies of working with such equipment and the features of its use.
Contents of the article
Esbe valves - technical features of devices
Esbe valves are types of devices used to regulate liquid or gas when it is supplied from one pipe to another. The three-way valve type is distinguished by the presence of three connections, which allow you to effectively redirect flows in the system, especially in the case of mixing hot and cold water.
Adjusting the operation of valves of this type within one system can carry out servo drive. This device needs to be given a little more attention.
Servo. This separate element in the system that controls the position of the valves. The servo drive is usually the most readily available and easy to install, which is why it is most often used.
Depending on the design features, a servo drive can be different; most often it falls into the category of such devices. For example, this can be installed with vrg131 samples. They give today highest quality and accuracy in system maintenance, which is why they are so popular among consumers.
In some devices, a servo drive, as well as Electrical adjustment is not used. In such cases, special devices are used to regulate the operation of equipment.
These varieties include, for example, the dn25 valve, which can be mounted in a faucet without a drive.
Review of Esbe three-way valve (video)
Purpose of Esbe valves
This type of product can be used in a wide range of systems, including heating systems, even centralized, hot and cold water supply, as well as air conditioning.
These types of valves are suitable for various systems, including those operating on oil products, gas, as well as eco-fuels, including solar energy or wind energy. You can install these types of equipment, for example, a three-way rotary valve vrg131, as for networks central water supply, and for home networks.
You can select a product for any tap. It is only important to choose the right type of product and install it according to the recommendations. It is also very important to adjust the servo drive or thermostatic regulator for the system to operate properly.
Then the model you choose will work without failures, regardless of the specified technical parameters.
The advantages of using this particular type of valve
Among the main advantages of installing Esbe products are:
- Easy to install this type of component, the ability to install samples in virtually any system.
- Wide operating temperature range, especially for models such as rotary valve vrg131.
- Versatility in application - can be used in networks with different loads.
- There is no need to maintain such samples if such equipment is installed correctly.
- Can be used with any Esbe drive that has the required technical characteristics.
- The presence in some parts of the so-called Anti-scald functions– automatic shutdown of hot water supply if cold water stops flowing into the system.
Popular Esbe valve models
Currently, the following models of Esbe valves are especially popular on sale:
- VTA200 equipment – best faucet for all water supply systems. Applicable for systems without hot water recirculation, as well as HWCs with such a function. Do not require special maintenance;
- VTA270 is a model range suitable for installation in underfloor heating systems. They can be installed in systems where there is no risk of “burning”. Suitable for systems with a fairly large area - up to 100 square meters;
- VTA310 is an equipment, like the vrg131 rotary tap, suitable for all water supply systems that do not have special requirements for protection against burns. Designed for areas with a maximum coolant temperature of 95 degrees, withstand differential pressure of 0.3 MPa. This type the valves can be mounted in a faucet with any type of drive;
- VTA330/VTA360 is equipment that is installed in systems that do not have additional devices for temperature control. The peculiarities of this equipment are that it, like the 3-way faucet vrg131, reacts as sensitively as possible to changes in pressure in the system and allows you to maintain a stable water temperature even during pressure surges. This model comes with a special protective cover, unless, of course, the user has chosen a different package. Parts VTA330/VTA360 are distinguishable only by the direction of water flow;
- VTC300 – thermostatic mixer. The crane is used for installation with boilers with a power of up to 30 kW. It is used in cases where coolant at a sufficiently low temperature flows through the return pipe of the equipment. There is no need to install a servo drive for this model - without it it also functions quite normally. The equipment has several installation options and can be easily adapted to the requirements of the system you choose;
- DN25 is another particularly popular valve model. Represents. Also suitable for protecting boilers power up to 150 kW. The operating temperature of this sample is also 110 degrees. DN25 is completely unpretentious to installation conditions, its operating efficiency does not depend on the chosen installation position;
- model vrg131 - designed directly for use in hot water supply networks. The vrg is made from a specialized brass alloy, which significantly increases its service life. Can be installed manually. It is recommended to use a servo drive from the same manufacturer to control this three-way valve.
Esbe products are quite popular today. is no exception. It is one of the many elements that are included in the life support system of residential buildings.
Need for use
This design, on the one hand, is quite simple, but on the other, it is designed to perform an extremely important task, being part of engineering networks. Everyone knows the rule that demand creates supply, which is why on the market today you can find many models that are represented by all kinds of manufacturers. However, valves produced by Esbe have excellent performance characteristics. A three-way valve of this type can be purchased at an affordable cost. This is confirmed by user reviews.
Design features
Today you can find a wide range of Esbe products. The three-way valve is no exception. This element has a regulating component, which is a ball or rod. The latter moves vertically, but as for the ball, its movement occurs around its axis. Due to the fact that the movements of the control element do not allow the flow of liquid to be blocked, distribution and mixing occurs. The most common and simple models are cranes.
Main advantage
Their main advantage is low cost and simplicity. However, if you need to adjust the Esbe three-way valve, then you should exclude the purchase simple devices, since they have a main disadvantage, expressed in the inability to stabilize the temperature regime at the outlet.
Carrying out installation work
Almost all of the described valves that are on the market are connected based on the same circuit. Mixing taps are most often used in water supply systems. Their main goal is to reduce the risk of backflow. There will inevitably be a pressure difference between the cold and hot water flows. It may cause backflow. If you install a valve, you will not encounter such a problem. If we are talking about a heating system, then such devices are used exclusively in three directions, namely to stabilize the temperature regime of the coolant flow in the incoming pipeline of boiler equipment, to reduce the supply of high-temperature water from the heating device to the pipeline, as well as in the conditions of mixing units of systems like a warm floor.
Connection in the mixing unit
If you are interested in Esbe products, you can purchase a three-way valve at any relevant store. One has only to first consider how the faucet is used in a heated floor system. The use of a mixing unit allows you to create an additional circuit in the system. It is connected to two points, which allows for constant circulation of water at the outlet. As for the input, the flow is provided only if there is a need to obtain additional heat. A valve with a thermostat is connected to the mixing unit. Due to the fact that all the valves are located at the point, they are narrowed, which can cause insufficient flow of the pumping equipment. To increase it, it is necessary to create an additional line, with which you can reduce the electricity consumption of the pump. During the installation process, it is worth remembering that a second line is not always required. A number of valve models have a fairly large bore. The Esbe three-way valve, the connection diagram of which can be developed based on the instructions presented in the article, may suggest insufficient flow power in the first line. In this case, the thermostat is not able to open the passage of the required size. This issue can be easily resolved in two ways: the first involves narrowing the second line, while the other option is to install it on it. The latter option is considered more productive, as it allows you to adjust the flow.
Alternative option for installation work
The Esbe three-way valve can be installed using another method. It does not involve the use of a balancing valve. The pump is connected to the second line, ultimately the temperature of the output and input streams is equalized. The faucet with thermostat is located in systems with one circuit. The simplest example of such systems is heated floors in small rooms. IN in this case It is not always justified to create a mixing unit with large dimensions. It would be best to connect the underfloor heating system using one circuit. If you are thinking about how to connect an Esbe three-way valve with an electric drive, then it can be placed on the return line through which cooled water flows. In this case, the thermostat will cause the shut-off valves to move, the cross-section will be increased, and the flow will be open. As soon as the pipe is heated, the temperature sensor will detect this and reduce the flow.
Installation of a valve for a heating boiler
This issue, according to professionals, must be considered separately. The main task of installation is to prevent the flow of cold water from entering the incoming pipeline, which is connected to the heating equipment. If this requirement is not taken into account, condensation will form on the pipes, and temperature changes will lead to deformation at the joint points. If we talk about the consequences of deformation, then best case scenario you will encounter a small leak, while at worst the system will need to be completely replaced. In order to avoid the need for repair of the Esbe three-way valve, it is important to connect the shut-off valves to the boiler, which is characterized by temperature changes during operation. If you install a mixing valve, you can ensure that water with a temperature below 50 degrees does not enter the equipment inlet. Temperature differences are significantly reduced, negative impact the cold is decreasing. Experts advise supplementing systems that use plastic pipelines with mixing valves. In this case, the task is to prevent high-temperature water from entering the pipeline. Despite the fact that polymers have many advantages, they do not cope well with frequent temperature changes that may be higher than operating temperatures.
When exposed to such conditions, the pipeline system soon fails. Experts advise choosing Esbe products. The three-way valve, the installation instructions for which are presented in the article, has been manufactured by this company for a long time. If you use this element, you will be able to provide temperature readings ranging from 75 to 85 degrees, which are recommended by experts. Installing a valve can solve many problems, but the model must be selected in accordance with the characteristics of the network, and also have a sufficiently large passage.
Adjustment features
When purchasing Esbe products - a three-way valve, installation and adjustment instructions for which are presented in the article - you must remember that with the help of this device it is possible to mix cooled water from the return to the supply. For high-quality regulation, not only a three-way valve, but also a four-way valve, which must be present in the heating system, is installed in the system independently. It is placed directly in front of the heated floor circuit. The handle allows you to open the bypass, while circulation pumps and equipment draw cooled coolant from the return, where it mixes with hot water. In order for the adjustment to be made as efficiently as possible, you need to understand what happens at certain positions of the handle. The latter can be set to the bypass shut-off position, in which case the hot coolant will flow into the pipe of the underfloor heating system. As for the mode in which the supply is shut off, water enters the tank and circulates in a small circle. The third position allows you to recharge the supply from the return system without blocking the full cycle of water passage throughout the entire circuit.
Conclusion
Specialists in Lately It is increasingly recommended to purchase Esbe brand products. The three-way valve, the instructions, the electrical diagram of which are presented in the article, is just an example of this. It can act as an indispensable element of the heating system and part of the boiler equipment, but it is important to choose the right model and install it in accordance with the technology.
A three-way valve in a water supply or heating system is responsible for mixing or separating liquids different temperatures, and also for obtaining the required temperature at the liquid outlet (adjusting the temperature of the coolant using a servo drive).
Design Features
The device body contains two inlets and one outlet for the flow of liquids and a control element, which can be different designs(for example, a rotary ball or a running rod), also a place for a servo drive.
Typically, the valve is not designed to completely shut off the output liquid flow, but is only capable of controlling the mixing proportions of liquids and the temperature in the system. The instructions do not suggest, but functionally, it is quite possible to shut off the liquid supply.
A three-way valve of a certain type, which performs separation functions, may have a rotary servo drive to redirect the flow to different pipes(then it is called “constipated”).
In this case, there is no gradual or smooth mixing of liquids with temperature control, and the turning mechanism itself consists of a ball (like a Bugatti ball valve).
There are several varieties of it, depending on the type of drive mechanism, performing the same functions:
- Hydraulic rotary drive;
- Pneumatic drive;
- Electric servo drive.
Yes, three A new Esbe valve with a servo drive will require the sample itself and a compatible drive manufactured by the same company.
Types and differences
Esbe has been in business for over a hundred years and specializes in temperature control products for hydraulic systems in small buildings.
It produces a valve and rotary servo actuator for cooling or heating systems, also working in conjunction with indoor and outdoor temperature sensors in the system. The operating principle of the Esbe three-way valve is similar to the above options.
The company produces several model series of three-way valves, including a mixing valve:
- Rotary valves (model series: VRG130, VRG330, 3F, H, VRH130, HG);
- Linear valves (series models: VLF300, VLF200, VLE132);
- Thermostatic mixing valve (series models: VTA and VTS).
Rotary valves
Valves of the VRG130 series are used for hot/cold water supply systems. This model range, like subsequent ones, has various options(for example, a three-way valve from Esbe VRG 131 also belongs to this series and has a connection for a servo drive).
They are compact brass alloy mixing models designed to minimize leakage and with a manual adjustment dial. The instructions indicate that they are also compatible with systems automatic control and Esbe controllers that allow you to automate the operation of valves.
Esbe three-way valve of this model series - supplied with standard sizes DN 15-50, pressure class - PN 10, model options include varieties with internal (three-way mixing valve type Esbe model VRG131 with connection to an actuator), external thread
(model VRG132), with union nut or compression fittings.
Trekhodo The second Esbe mixing valve of the VRG330 series has similar qualities to the previously described VRG131 series (DN 20-50, PN 10), but is designed specifically to work with large flows (kvs difference between inputs is 60 percent).
Can also be equipped with compatible controllers and automatic control. Available with three connection types: internal thread, external thread, rotating nut.
According to Esbe specifications, the 3F series rotary mixing valves are designed for use in heating and cooling systems.
Esbe controllers and automatic control systems can also be used with them (the Esbe three-way valve model VRG131 with an electric drive is not immediately supplied, which allows you to choose the most convenient option for the company’s products).
For ease of installation, the Esbe 3F three-way valve is marked with an adjustment scale on both sides. The valve body is made of cast iron, the model is also supplied with an adapter for a PN 6 flanged pipe, model sizes are DN25-150.
The mixing valve from Esbe series H (DN25-40) and HG (DN25) is designed for installation in limited space.
This three-way control valve from Esbe is used only for heating systems and is specified for work with the boiler group (made of cast iron, special “H”-shaped body). It also has a reasonable price.
As the main type of connection, both internal thread and its mixed type. Compatible with controllers and Esbe drives like VRG131.
Models of the VRH130 series are also made in an “H”-shaped version, but made of brass with a pressure class of PN 10. This model is more versatile than the previous model and can also be used in water supply systems, and is available in different body widths.
Linear valves
The VLF300 series is a three-way linear mixing unit with standard sizes DN 15-50.
This model range is linen made of nodular cast iron and can be used with working fluid both cold/ hot water, and which contains non-freezing components (glycol, for example).
In the latter case, the sample must be equipped with a rod heater. It is equipped with a flange for a PN 6 pipe. Models similar to those previously indicated, VLF200 dn25, are distinguished by a higher operating pressure of up to 16 bar (versus 6 bar for the previously indicated model range).
Models VLE132 – made of bronze with standard sizes DN 15-50. These are linear motorized valves, which, like the previously mentioned similar models, can use water with glycol as working fluids (connection - PN16 external thread), unlike the VRG131 series. Its price ranges from 140 to 350 euros.
All linear three-way valves listed are compatible with the Esbe controller and actuator.
Thermostatic mixing valve
VTS520/550 - the instructions indicate that three-way valves are designed to work with hot water supply systems that are connected to a solar heating system. Its price starts from 150 euros.
A special feature of this model range is that the Esbe three-way thermostatic valve comes with specialized protection against burns, since the liquid circulating in the system is sufficiently high temperature.
Esbe's three-way thermostatic mixing valve with “anti-scald protection” uses a sensor that automatically turns off the hot water servo when cold water is not supplied.
The coolant with which these models work is water (including drinking water), the coolant of closed systems is water with non-freezing components. Pressure class - PN 10, the body is made of brass, resistant to corrosion, for example, the VRG131 valve is not suitable for such a system.
VTA330/530 - Esbe thermostatic mixing valve of this series is designed for use in domestic hot water systems, as well as in taps or showers where no other means of temperature control is provided (VTA330), or in high-flow domestic hot water systems (VTA530). Its price is around 150 euros.
Also equipped with a protection system you from burns. Pressure class PN 10 (material - brass, resistant to corrosion), available with external threaded connection, fittings or adapters.
VTA360/560 is a series similar to the previous one in design, but equipped with a large number of fittings and connections. The instructions assume that the drive of the Esbe three-way device of this series must also be compatible with the specifications specified by the company.
Representatives of the VTA320/520 series can be used both in conditions similar to the operating modes of previous model series, and in systems where other temperature control systems are present.
These valves are recommended for use in hot water circulation (HWC) or underfloor heating systems. Also equipped with “scald protection”. VTA370/570 – models designed for use in a “warm floor” system, have a high throughput.
VTA310 is a sample supplied with an adjustment knob, without a burn protection system. It is used in domestic water supply systems, including closed-circuit hot water supply (HWC) systems. Its price starts from 50 euros.
Valve Design Overview (video)
Installation features and prices
When installing a three-way mixing valve, choose various options, instructions and algorithms for installation. As a rule, the part is not installed directly to the heat source, since the system uses a gravity manifold or “hydraulic arrow”.
In the version for heating, the simplified instructions involve supplying coolant from the boiler to the valve, from there the coolant is supplied to the heating system through a pump.
The liquid that has passed through the heating system and cooled is sent to the boiler for heating, but also to the mixing valve, which ensures temperature control of the supplied substance.
The instructions for the Esbe three-way valve usually include a description of connecting the valve to the system, which may vary depending on the model range.
A three-way valve cw602n Esbe (the brand of brass is indicated here) of the VRG130 model series (namely VRG131 ½) costs an average of $170 (if purchased complete with an actuator).
The price of a three-way valve from Esbe linear VLA330, depending on the configuration, is $150 (not equipped with an electric drive).
The Esbe 3-way thermostatic valve (VTA 320) can cost $70 or more.
The ESBE type three-way valve is just one of the elements of the life support systems of a residential building. On the one hand, this is a simple design. On the other hand, it performs an important task in engineering networks. Demand creates supply. There are many models on the market presented by different manufacturers. Three-way valves produced under the ESBE brand have good performance characteristics.
Some useful knowledge
Three way rotary valve ESBEA three-way valve is a control device in pipeline systems with a liquid working medium. Speaking in simple language, built into the design of the heating network, it will act like a well-known faucet that switches or mixes flows. Installing the valve allows you to solve a number of practical problems:
- Redirection of flows coming from different pipelines.
- Achieving the required temperature of the working fluid by mixing hot and cold flow.
- Achieving a jet with a constant temperature through dynamic redirection.
Difficult? Only at first glance. In order to understand the principle of operation of the device, let's consider its design features.
Design
A three-way mixing valve has a control element, which is a rod or ball. The rod moves vertically, the ball moves around its axis. Since the movement of the control element does not completely block the flow of the working fluid, it is mixed and redistributed. The simplest models are a regular faucet. Their main advantage is low cost and design simplicity. The disadvantage is the impossibility of stabilizing the outlet temperature. Despite the disadvantages, the faucet can be installed in underfloor heating systems. Now let's imagine a faucet with an electric drive. This design is already more functional, since it is able to regulate the temperature automatically. A simple valve is a balancing valve. Its main function is to adjust the cross section for the passage of the work flow. Conventionally, the principle of its operation can be described as follows:
- The handle is turned 50% - uniform mixing of the two flows, since the inlet valves will be equal.
- The handle is turned 100% - the first valve is fully pressed and blocks the movement of liquid flow.
Modifications on the market may have different handle rotations, but the principle of their operation remains the same. The tap and its position are manually adjusted, thereby ensuring a balance between the two flows.
Kinds
There are several types of such devices:
- With hydraulic drive.
- With pneumatic drive.
- Electrically driven.
A motorized three-way valve, such as the ESBE model, will have a slightly different operating principle. The electric drive performs the function of a conventional thermostat, which allows you not only to mix flows, but to maintain a given temperature. When the temperature decreases/increases, the drive automatically changes the position of the shut-off valves, increasing or decreasing the cross-section of the hot water flow. At the same time, the cross section at the point of inlet of the cold flow also changes. The result is water with a constant temperature. The ESBE crane does not require any human intervention. Its operation is regulated automatically.
Operating principle valve Equipped with electric actuators and thermostats, ESBE valves are equally suitable for use in heating and hot water systems. In principle, the valve can be installed in any pipeline where it is necessary to mix two liquid streams with constant temperature maintenance. No matter how high-quality and reliable a three-way valve with a thermostat is, it will have one drawback that is characteristic of absolutely all devices of this type.
This disadvantage is the strong narrowing of the entrance points. The narrowed cross-section of the inlet point, in turn, increases hydraulic resistance.
Such a faucet will work well in water supply systems. ESBE valves are suitable for installation in underfloor heating systems, but require a special connection diagram. In addition to the designs described above, three-way thermostatic valves are available on the market. These devices are often confused with each other, but they are still completely different. Thermostatic models have a thermostat with a remote sensor, but they differ not only in this element, but also in the principle of operation. Unlike conventional models, in thermostatic taps the flow is regulated at only one point, the remaining two are open and their cross-section does not change. When choosing such a design, you need to check whether there is any narrowing at point 2, otherwise hydraulic resistance will lead to difficulties in the operation of the device. It may be necessary to install a mixing valve in an alternative ring to minimize the problem.
Connection diagrams
Three-way valve - connection diagram Almost all three-way valves on the market are connected according to the same circuit. Let's look at it using ESBE cranes as an example. Let's start with water supply systems, since this is where the mixer tap is used most often. The main purpose for which the valve is installed is to reduce the risk of backflow.. Between the two streams - cold and hot water - there will inevitably be a pressure difference. It can lead to backflow. When installing ESBE valves, such incidents rarely occur. In heating systems, ESBE valves are used in only three directions:
- In mixing units of “warm floor” systems.
- To stabilize the temperature of the liquid flow in the incoming boiler pipeline.
- To reduce the supply of high-temperature coolant from the boiler to the pipeline.
Valve in the mixing unit
Let's look at how the ESBE tap is used in underfloor heating systems. The mixing unit creates an additional circuit in the system. It is connected to the distribution manifold at two points, which ensures constant circulation of the liquid at the outlet. At the inlet, flow is only provided if additional heat is required. A valve with a thermostat is connected to the mixing unit. Since at point 2 all valves, including ESBE, are narrowed, insufficient pump flow may be observed. To increase it, a second line is created to reduce energy consumption by pumping equipment. A second line is not always required. Some models of three-way valves have sufficient passage.
Diagram of a heated floor with a three-way valve If there is insufficient flow power on the first line, the thermostat will not be able to open the passage to the required amount . The problem is easily solved in two ways: by narrowing the second line or installing it on balancing valve. The second method is more productive. It allows you to fine-tune the flow. You can connect a three-way valve according to another scheme that does not require the installation of a balancing valve. For this pump equipment connects to the second line. As a result, the temperature of the inlet and outlet streams is compared. A faucet with a thermostat can be installed in systems with one circuit. The simplest example of such systems is heated floors in small rooms. Creating a mixing unit here , with its considerable dimensions , is not always justified. It is better to connect a heated floor with one circuit. A three-way valve with a thermostat is installed on the return line, through which the cooled coolant flows. In this case, the thermostat will move the shut-off valves, increasing the cross-section and opening the flow. After heating the pipe, the temperature sensor reads the data and reduces the flow.
For heating boilers
Three-way valves for heating boilers should be considered separately. The main task of their installation is to prevent cold coolant flow into the incoming pipeline connected to the boiler. Otherwise, condensation will begin to form on the pipes, and temperature changes in the system will lead to its deformation at the joints. There is no need to talk about the consequences of such deformations. At best, a small leak will form, at worst, the system will have to be completely changed.
Three-way valve in a heating system It is especially important to connect shut-off valves to solid fuel boilers, characterized by significant temperature changes during operation. Connecting a mixing valve makes it possible to ensure that liquid with a temperature below 50 degrees does not enter the inlet of the boiler equipment. As a result, the temperature difference decreases, the negative impact of cold with all the ensuing consequences is reduced. It is recommended to install mixing valves in systems with plastic piping. The goal here is to prevent high temperature coolant from entering the pipeline. Despite all the advantages of polymers, they do not withstand frequent increases in temperatures above operating parameters. Under such operating conditions, the pipeline quickly collapses. Temperatures recommended by experts range from 75 to 85 degrees. Installing valves can solve many problems, but the model must be selected exactly according to technical characteristics utility network, and must have sufficient passage.
Conclusion
The simplest shut-off valves - three-way mixing valves - important element engineering communications. Modern models created at the intersection of old traditions and modern technologies, allowed us to achieve excellent results their use for a variety of purposes.