There is one of the elements of valves, which is often used in heating systems. In any case, it will not be possible to do without it during the design. This is a three-way valve for heating with a thermostat. The device has the shape of a tee and is designed to connect or separate streams of water.
Mixing valves
Controlling the heating of the effluent is quite simple. To do this, it is enough to determine the temperature of the incoming cold and hot liquids and adjust their flow in the right proportions. According to the principle of operation, three-way valves for heating systems function as dividing and mixing. How each type of device works can be understood by name.
The mixing valve has two inlets and one outlet. Such a device is designed to combine flows, for example, hot and cold water, which is necessary to adjust the heating of the coolant. These appliances are ideally suited to create the required temperature in equipped underfloor heating systems. Devices of this type can also perform the function of splitting streams, if you install them accordingly.
Isolation valves
A three-way valve for heating with a thermostat for separating action divides the main stream into two parts. Such devices are most often used to supply hot water in several directions. Quite often, experts install these valves in the piping of air heaters.
The difference between mixing devices and separation
Both devices are no different in appearance. If we consider the scheme of valves for different functional purposes, you can easily notice a significant difference. In mixing devices, a rod with a single ball valve is installed . It is placed in the center in order to overlap the inlet seat. In dividing devices on one rod there are two such valves, and they are mounted in the outlet pipes. When the first opens one passage, moving away from the saddle, the second at this time blocks the flow of water along the highway.
Management methods
Every day, a three-way valve for electric heating is becoming increasingly popular with buyers. Handheld devices prefer to buy only for reasons 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 regulated separately, taking into account the distance from the boiler. Such valves are easily compatible with underfloor heating systems. On the heat pipe between buildings often installed devices with increased traffic.
Valve selection
Like all other devices, three-way valves differ in the pressure of the coolant and the diameter of the supply pipe. These characteristics determine the creation of GOST, allowing certification. Failure to comply with state standards by manufacturers is a gross violation because the issue may concern pressure inside pipelines.
Functional Benefits
It must be understood that three-way thermostatic valves for heating a mixing type do not change the pressure of the coolant, but only regulate the ratio of cold and hot water in the system. The stem is always equipped with a double O-ring seal, the outer part of which can be replaced without the need to drain the entire structure. The valve body is made only of materials resistant to corrosion. A double O-ring is provided on the stainless steel drain. Connections are made using a brazed, threaded or welded fitting.
Automatic systems
The three-way valve for heating with Valtec thermostat 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. Distinguish between hydraulic, pneumatic, electrical and other devices.
Electric drives
The most common are electric devices that are able to carry out the most accurate temperature control of coolants. The triggering mechanism in such a system can be electromagnets (solenoids) or complex servos built on transmission systems or low-power electric motors. The three-way valve for heating with a temperature controller can be controlled by temperature detectors or pressure sensors, which are mounted in the corresponding parts of the binding units.
In addition to electric, another type of actuator can be installed on the valves at the same time. This type of equipment will expand the ability to select and install a regulatory system that can optimally ensure high-quality operation in each case.
Technical information
A three-way adjustable valve for heating is one of the types of shut-off valves and is created mostly from stainless steel, brass or cast iron. By the method of shutter or form, such mechanisms are divided into ball, cylindrical and conical. Valve gland or gland fit is possible. Adjustment is made from the bottom of the device using a nut or from above using an oil seal.
Device selection
If you need to choose a three-way valve for heating with a temperature controller, it is better to first determine the type of system in which it will be used. Attention should be paid to the type of drive, as well as the regulating mechanism of the mechanism. It can be a ball rotating around an axis or a rod made according to any specific principle. Regulatory elements distribute fluid flows rather than blocking them. Such devices are very effective and quite reliable. Many buyers recommend a three-way valve for heating with an Esbe thermostat.
Three-way Valve Prices
The cost of valves in the domestic market has a very wide range and may depend on certain factors. This feature is characteristic of most thermal equipment. The main distinguishing quality is the material from which the device is made. Cast iron and steel valves are mainly used in heating systems and high flow pipelines. Therefore, the price of such devices will be higher than for brass ones, the dimensions of which are much smaller.
Today, an alternative to three-way valves has not yet been invented, therefore, only thanks to these devices is it possible to adjust the temperature when the coolant is supplied to the heating system. The production technology is refined to the smallest nuances, therefore, with the choice of a device that meets specific requirements, there will never be difficulties. Today in the domestic market you can buy a three-way valve for heating advanced European manufacturers. The quality of these devices has been tested for several decades of serviceability.
Features of the use of electric devices
Such valves are often used when mixing or separating streams of hot, cold water or air. The devices operate together with variable-speed drive mechanisms. Regulators must not be installed in water-tight positions. In some devices, during assembly, there is no need for alignment. For this, special mixing and distribution valves are provided.
Mounting
The mixing or separating three-way valve for heating must be installed according to its intended use using conventional threaded connections with flat gaskets. It is imperative to avoid contamination. When installing in the direction of flow, attention should be paid. On the valve body, special arrows are provided for this.
Rotary damper
Such components enable the system to operate in manual and automatic temperature control mode. The principle of operation of such valves is as follows. The amount of coolant passed into the heating system will be equal to the volume of water taken back. In this way, the required temperature will be maintained without additional boiler operation.
Conclusion
A three-way valve for heating with a temperature controller is designed to separate or connect cold and hot water flows in space heating systems. Depending on the volume of the coolant, as well as the dimensions of the heating networks, the necessary throughput, dimensions and material from which the device should be made is determined.
Water temperature control is carried out manually 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 that make it possible to select a mixing or separation mode of operation of the valve. In the domestic market, electric drives are most popular.