The three-way valve with thermostat for heating: operation circuit

carefully thought heating system ensures comfortable living conditions. Its structure, in addition to the basic elements, which include boiler, pipeline, batteries, Includes a special Valves. Special attention should be three-way valve for heating with thermostat. Scheme and how it works depends on the design features of a particular model. Please find the main types of devices offered by leading manufacturers.

What is necessary to regulate the heat flow in the heating system

The presence of three-way valve with thermostat allows you to increase the efficiency of heating systems. With it, the heat flow is regulated, and as a result, provide comfortable indoor air temperature.

At the initial stage of the heating system design is performed without fail paymentTaking into account the specific room and quadrature current heat loss. The results will be the original data when selecting the type and capacity of the equipment acquired on the basis of the required capacity of the heating circuit.

Even the most precise calculations can not guarantee the stability of the system during the entire heating season. To work radiators influence:

• solar Activity;
• wind speed;
• change in temperature outside the house;
• devices that generate heat during operation.

Each of these factors is able to disrupt the balance of the temperature in the room. You can restore it by changing the parameters of the coolant transported through the heating circuit.

Three-way valve for heating with thermostatic control: wiring diagram, purpose, scope

The valve is connected to the heating system at the point where the flow division takes place on the two circuits. At constant temperature the first stream, the second - may vary. Constant temperature at addition circuit, where the quality and the volume of coolant must be unchanged.

For such valves are characterized by a broad scope of application. Electromagnetic apparatus and three-way valves with a thermal head mounted on modern highways. With their help, an adjustment of mixing ratio of two liquid streams. The volume of coolant and system power remains unchanged.

In everyday life, the most in demand mixing devices, allowing to adjust the temperature of the coolant. The latter can not only be transported through the pipeline heating systems, but also within underfloor heating. Presence of the special valve allows controlling temperature parameters without any problems.

Comment

Sergei Kharitonov

Lead engineer for heating, ventilation and air conditioning "GK" Spetsstroy "

Ask a Question

"The introduction of the three-way valve of the heating system will help stabilize its operation and provide a reduction of operational costs."

This device is necessary for some heating systems. Three-way mixing valve for underfloor heating avoids overheating flooring maintaining the temperature at a comfortable level. Such control devices are relevant for the water system. It can be used to maintain the flow temperature at the desired level.

Tensile adjusting the heat flux

The operating principle of a three-way tap is not allows you to change the temperature radiator infinitely. The degree of heating the coolant may vary according to the defined limit, the numerical value of which is dictated by the product specifications. Maximum heat dissipation is dictated by the characteristics of the particular radiator.

Design and operation of three-way valve in the heating system

Three-way valve is a brass or bronze tee shim, located on top of the valves. Under washer is temperature sensitive device, by which the activated operating rod, located in the tapered guide, fixed in a seat. Such valves are called saddle. Instead of the rod can be used rotating ball or sector. Products with this mechanism is called turning. The structure of the three-way valve besides the above components include a sealing component, as well as the discharge chamber pressure which is the main element.

The operating principle of a three-way valve in the heating system is dictated by its intended use. This fixture allows you to mix or separate the streams. With the separation valve regulated coolant volume. If necessary, some of the liquid instead of the direct path is guided to the bypass. In this case, the two pipes are output, and one - input.

Mixing device with a thermal head during operation mixes the streams, adding more hot coolant cold or vice versa. As a result, the degree of heating of the heat flux varies depending on how much of the mixed hot and cold flow. In these systems, two connections are inputs, and one - off.

Using a three-way valve solid fuel boiler true if the first furnace falls condensate. If any manage to temporarily cut off the cold coolant, empty part of the heated liquid for a short circuit.

The main functions of the three-way valve in the heating system

Stop valves of this type has broad functionality. Before you give preference to a particular model, it is necessary to get acquainted with the peculiarities of the qualitative and quantitative adjustment of the heating system. Depending on the option selected addressed the issue of the type of acquired valve.

Maintain a comfortable temperature

Adjust the amount of heat emitted by radiators in two ways:

• changing the mode of operation of the radiator;
• quantified by adjusting the volume of heat generated.

Both methods require a certain effect on the fluid circulating through the pipes. Please find possible embodiments and their distinctive features.

Changing the mode of radiators

If you want to adjust the microclimate around the house, sometimes it is enough to change the mode operation of heating equipment, to increase or decrease the temperature of the coolant flowing across radiators. As a result, the battery will give more or less heat, depending on the desired changes.

Quantitative adjustment of heat flux

Not every boiler It allows to change the degree of heating the coolant flowing through the radiator. To achieve the desired effect is possible by adjusting its quantity. With such a situation allows to handle three-way control valve.

If present in the heating system can change the amount of water passing through the circuit. As a result, the radiator starts give more or less heat, depending on the selected limit.

Permissible installation of three-way valve separately from the temperature controller. However, for private houses or apartments the preferred option is to install a combination of reinforcement.

Types of three-way valve actuator

Manufacturers offer devices with different type of actuator determines the valve working principle.

Attention! For domestic purposes, you can safely purchase a valve with a rotary actuator.

Types of drives of three-way valves

Three-way valves are equipped with actuators of different types. The choice of a particular variant has a direct impact on the usability of a country house heating systems. We suggest to familiarize with each of them and their features.

Three-way thermostatic mixing valves

This type of the most widely found when equipping domestic heating systems. According to the principle of the three-way mixing valves can be:

• straight;
• indirect.

The sensor system is a probe located inside the pipeline. Once the coolant temperature begins to rise, the liquid inside the "bellows" expands and presses on the valve stem. When reducing the temperature of the coolant rod will make the reverse movement.

Three-way valves with electric drive

Electrical drive in the devices can be of various types. Manufacturers offer:

• three-way valves with electric drive, Which acts as an electric magnet;
• three-way valves with servoWhose base is an electric motor.

Temperature sensors or control command is transmitted controller directly actuating assembly. From the viewpoint of control accuracy of heat flow, are the most effective three-way motorized valves.

Attention! If the supplied three-way valve is not part of the drive, it can always be purchased separately by the model with suitable characteristics.

The advantages of such a reinforcement is attributed stability circulating heat carrier, irrespective of the stroke position. However, to reduce the flow with it will not work.

Varieties thermostats for radiators

Mounting data communicating device carried in the radiator tube. They allow you to cut off the flow coolantWhich passes through the battery. If necessary, the passage can be completely closed.

Depending on the method of installation for heating valves may be:

1. Mechanical. The bellows and provide a return spring rod movement. Preset is performed on the handle with the dividing.
2. Tame. According to the principle of operation similar to a conventional crane. If necessary, the thermal head can be replaced with a device with an automatic operating mode when changing operating conditions.
3. Electronic. They run on batteries. Have a numeric keypad. Allow you to program the operating mode depending on the coolant temperature.

Thermostats can be divided into:

• liquid and gasDepending on what is the active substance in the bellows;
• for one- and two-pipe systems, Depending on the destination;
• straight and angled.

Related article:

Thermostat for heating radiator. The article detailed look at the design, modern modifications, application features, options devices for the radiator, an overview of current models and secrets regulator properly install yourself without mistakes.

The operating principle of the thermostat

On regulator performance affect the accuracy and speed of response to changes made thermal head. The faster the device allows you to change the system operation and provide prompt changes to its functioning, the more will have to pay for it.

The main elements are thermostats valves (valves) and the thermal head. The principle of operation of the device depends on the type of element.

Advantages and disadvantages of three-way valve with thermostat and electric

Valves of this kind are the most successful variants of such valves. Their main advantage is attributed:

The disadvantages include certain procedural requirements for the installation work. At default device specified requirements will work correctly.

How to choose the three-way valve

If you need a manual adjustment of the system, just buy an ordinary ball valve. From simple it is characterized by the presence of additional output. It can be used to provide forced regulation of the heating circuit.

To automatically adjust to choose three-way thermostatic valve, which includes an electromechanical device that allows you to change the position of the rod. When properly connected to the thermostat user can change the temperature in a private home.

When selecting the instrument should be given to:

1. Fitting diameter. It can be 2-4 cm. When it is commercially available with the desired size of the device can use special adapters.
2. Bandwidth pipeline showing which volume of fluid is able to pass through the cross section tubes for a certain time.
3. The possibility of installing servos. In this case, three-way valve can operate in automatic mode.

Overview of models and manufacturers of three-way valves

Three-way valves are offered by many manufacturers. Preferring well-known trademark, you can count on high-quality assembly of devices, long life and stable performance. Ballroom trusted manufacturers whose products are in steady consumer demand.

Three-way valve with electric Esbe and without

Installed in the heating and cooling systems. three-way valves Esbe Power a high build quality. For the manufacture of series 3MG used brass alloy. They can be used in a system to which meet high hygiene requirements. VRG relevant to general purpose systems.

Three-way valves Naven

The company offers quality Navien heating boilersAs well as specialized valves. A distinctive feature of three-way valves Naven is possible to change the priority combi boilers. If necessary, the choice is made in favor of either water supply or heating. Choosing reinforcement is required to be given manufacturer, if all elements of the heating system is released under this brand. In this case it will be possible to ensure stability of the construction work for a long period.

Three-way valves Danfoss

Relevant for heating systems and water supply. The advantages of the valve manufacturer should include:

Comment

Sergei Kharitonov

Lead engineer for heating, ventilation and air conditioning "GK" Spetsstroy "

Ask a Question

"Installation of the pipeline can be carried out in any position other than the valve-down."

Review of prices, catalogs

Tsenatrohhodovogo valve for heating with thermostat It can vary within a wide range. The cost depends on the characteristics of the place of purchase and producer. We offer to meet with the average for this shut-off valve prices, so you can pre-plan your family budget.

Photo	Model	Average price, RR.
	Mixing Uni-Fitt 3/4 "Kvs 6 360G0630	2560
	Watts 3/4 HP	2500
	Three-way mixing ICMA 324 - 1 "(adjustment of 60-90 ° C, with an immersion sensor)	4000
	A motorized three-way zone ball valve with manual deprotection FAR	11 640
	A motorized three-way ball valve FAR zone	10 060
	Royal Clima VVG 20-2,5 (G 3/4, Kvs = 2,5)	2 000

The nuances of installation three-way valve in the heating system with their own hands

For proper installation of all elements of the heating system should be familiar with the possible nuances. Only in this way can guarantee the continuity of the circuit operation. For each such product the manufacturer applies the instructions, which details are registered all basic requirements.

To install a three-way valve in the heating system has been implemented correctly, should ensure the correct position of the valve, paying attention to the clues, which are in each case. They indicate the direction of water flow. you can decipher these designations are as follows:

1. BUT - the forward stroke.
2. AT - bypass or perpendicular direction.
3. AB - combined output or input.

Thus it is necessary to consider which model of the valve to be established. They can be:

• T-Or symmetric scheme;
• L-shapedOr asymmetric scheme.

In the former case the installation is thus able to termonositel flow into the valve through the end openings and exit - through the center. The second input is one and a lower end, and an output - the second end.

Another aspect that should be considered during installation: the spatial position of the thermostatic head or actuator. They should not be sent down.

Attention! Before starting work, it is essential to block the water and ensure no residues within the coolant conduit.

Positioning the valve should be in a place where there will be free access to it. Location valve must allow to perform all the necessary manipulations.

Thus, the three-way valve can be considered a binding element of the heating system. If you are using termosmesitelny valve for floor heating, share in the comments, what the producer preferred and why. It is also interesting to see the details of its installation.