Three-way valve for heating with thermostat and electric drive

There is one of the elements of the stop valves, which is quite often used in heating systems of premises. To do without it in the design in any case will not succeed. This is a three-way valve for heating with a thermostat. The device is in the form of a tee and is intended for connection or separation of water flows.

Mixing valves

It is quite easy to control the heating of outflows. To do this, it is sufficient to determine the temperature of the incoming cold and hot liquids and adjust their supply in the correct proportions. According to the principle of operation, three-way valves for heating systems function as separating and mixing valves. How each type of device works, you can understand by name.

The mixing valve has two inputs and one output. Such a device is designed to combine flows, for example, hot and cold water, which is necessary to regulate heating of the coolant. These devices are ideal for creating the necessary temperature in the equipped systems of warm floors. Devices of this type can also perform the function of separating streams, if you install them accordingly.

Separating Valves

A three-way valve for heating with a thermostatic separator acts to divide the main flow into two parts. Such devices are most often used to supply hot water in several directions. Quite often, specialists mount these valves in the bundles of air heaters.

The difference between mixing devices and separating

Both devices do not differ in appearance. If you look at valve charts of different functional purposes, you can easily notice a significant difference. In the mixing devices, a rod with a single ball valve is installed. It is placed in the center in order to block the saddle of the inlet. In the separation devices on one rod, there are two such valves, and they are mounted in the outlet nozzles. When the first opens one passage, moving away from the saddle, the second at this time blocks the flow of water along the highway.

Methods of management

With each passing day, the three-way valve for electric heating uses more and more popularity among customers. Handheld devices prefer to buy only for the sake of economy. Automatic electrical systems are often used in the operation of heat distribution systems in private homes.

For example, the temperature in the rooms can be adjusted separately, taking into account the remoteness from the boiler. Such valves are easily compatible with underfloor heating systems. On the heat pipe between the buildings are often installed instruments with increased patency.

Valve Selection

Like all other devices, three-way valves differ in the pressure of the coolant and in the diameter of the supply pipe. These characteristics cause the creation of GOST, which allows for certification. Failure to comply with state standards by manufacturers is a gross violation because the issue may relate to pressure within pipelines.

Functional advantages

It should be understood that the three-way thermostatic valves for heating the mixing type do not change the pressure of the coolant, but only regulate the ratio of the supply of cold and hot water in the system. The rod is always equipped with a double ring seal, the outer part of which can be replaced without the need to drain the entire structure. The valve body is made of only materials resistant to corrosion. On the stainless drain there is a double O-ring seal. Connections are made using a soldered, threaded or welded fitting.

Automatic systems

The three-way valve for heating with a thermostat Valtec can automatically adjust the temperature of the liquid. To make this possible, the devices are equipped with a special drive system that receives pulses from various sensors. There are hydraulic, pneumatic, electrical and other devices.

Electric drives

The most common are devices with electric drive, capable of making the most accurate adjustment of the temperature of heat carriers. The starting mechanism in such a system can serve as electromagnets (solenoids) or complex servo drives built on transmission systems or low-power electric motors. The three-way valve for heating with a thermostat can be controlled by means of temperature detectors or pressure sensors that are mounted in the respective parts of the bundling units.

In addition to electrical, a different type of actuator can be installed simultaneously on the valves. Completion of this type will expand the possibility of selecting and installing a regulatory system that can optimally provide high-quality work in each specific case.

Technical information

The three-way adjustable valve for heating is one of the types of stop valves and is mainly made of stainless steel, brass or cast iron. By the method of the bolt or form, such mechanisms are divided into ball, cylindrical and conical. Tension or stuffing box seating is possible. Adjustment is made from the underside of the device using a nut or from above with the use of an oil seal.

Select a device

If it is necessary to select a three-way valve for heating with a thermostat, it is better to first determine the type of system in which it will be used. Pay attention to the type of drive, as well as the control mechanism of the mechanism. It can be a ball rotating around an axis or a rod, executed on some specific principle. The regulating elements distribute the fluid flows, rather than overlapping them. Such devices are very effective and quite reliable. Many buyers recommend a three-way valve for heating with an Esbe thermoregulator.

Prices for three-way valves

The cost of valves in the domestic market has a very wide range and can depend on certain factors. This feature is typical for most of the heat equipment. The main distinguishing feature is the material from which the device is made. Cast iron and steel valves are mainly used in heating systems and pipelines with a large flow. Therefore, the price of such devices will be higher than brass ones, the sizes of which are much smaller.

Today, an alternative to three-way valves has not yet been invented, therefore only thanks to these devices it is possible to adjust the temperature when the coolant is supplied to the heating system. The technology of production is honed to the smallest nuances, so with the choice of a device that meets specific requirements, there will never be any difficulties. Today in the domestic market you can buy a three-way valve for heating the advanced European manufacturers. The quality of these devices is checked by several decades of good work.

Features of the application of devices with electric drive

Such valves are often used when mixing or separating flows of hot, cold water or air. Instruments operate in conjunction with drive mechanisms with an adjustable characteristic. Regulating devices must not be installed in positions that allow water to enter. In some devices, the need for adjustment does not arise during assembly. For this purpose, special mixing and distribution valves are provided.

Installation

The mixing or separating three-way valve for heating needs to be installed according to the intended use using conventional flat sealing joints. It is necessary to avoid contamination. When installing on the flow direction, attention should be paid. On the valve body, special arrows are provided for this.

Rotary valves

Such accessories allow the system to operate in manual and automatic mode of temperature control. The principle of operation of such valves is as follows. The amount of heating medium passed to the heating system will be equal to the volume of water taken back. This will maintain the required temperature without additional boiler operation.

Conclusion

The three-way valve for heating with a thermostat is designed to separate or connect the flow of cold and hot water in the heating systems of the premises. Depending on the volume of the coolant, as well as the dimensions of the heating networks, the required throughput, dimensions and material from which the device is to be made are determined.

Regulation of water temperature is carried out in manual mode or due to the operation of automatic hydraulic, pneumatic or electric drives equipped with special temperature sensors. In some types of valves, mechanisms are provided, thanks to which the mixing or separating operation of the valve can be selected. In the domestic market, the most popular are devices with electric drive.