Three-way separation valve in mix mode. The use of a three-way thermostatic valve in various engineering systems. Connection Systems to Systems
The three-way valve (is sometimes called a tee or a three-way tap) on the heating system is a mixer for the formation of a stable water flow with a given temperature. This node is simple, but it plays an important role in the work of various systems with water circulation contours. This is due to the need to compensate for the uneven heat distribution in the volume of the building in general and on the contour of heating in particular. The most typical representatives of such products are ordinary household faucets.
Scope of the three-way valve
Triple valves can be used in water supply systems. Unlike heating circuits, such elements serve not by mixers, but flow separators.
True, there is one note: any triple valve can work in different systems., It all depends on the connection and selection of setting parameters. But with all the multiple schemes, their relatives are related to the general purpose is to protect users from burns and, most importantly, separation of flow circulation on the contours.
In one contour, a constant hydraulic mode is maintained, in the other - this mode is variable. In other words, consumers with quantitative parameter control indicators are connected to the nozzles in the circuit of the variable mode, while the constant mode circuit serves consumers with high-quality adjustment.
The mixer cannot overlap the constant contour, having a hard tuning. But if the mixer is equipped with a thermal head, then such a overlap becomes possible. There is a tool for monitoring the magnitude of the pressure and consumption.
In addition, the three-way valves sometimes temperature stabilization functions can be deprived. Then these nodes serve to simply redistribute fluid flows in the system.
Principle of operation of the three-way valve
The principle of operation of a three-way mixing crane in the heating system is to mix water threads:
- hot;
- cold.
From the description of the operation scheme of the three-way mixer, the conclusion: given the device must work under the control of the control system, following the size of water heating.
The advantages of the three-way mixing site:
- ease of installation;
- high functionality;
- durability of operation;
- simplicity adjustment;
- practical design.
Disadvantages of the three-way mixing site:
- high price;
- sensitivity to the contamination of the coolant.
Triple valve design
The three-way valves, the principle of operation of which is discussed earlier, conceptually represent the connection of a consistently working pair of two-way cranes. Unlike them it does not overlap completely, Only allowing you to adjust its intensity to ensure the required temperature parameters.
By internal device, the three-way valves are divided into two main types:
- products with adjustment "Santo Saddle";
- products with adjustment "Ball-nest".
The products of the first type belong to the mixing valves, adjusting the position of the rod is made by moving up-down. As a rule, the rod is controlled by an electromechanical drive, which makes it possible to achieve a high degree of automation of the system adjustment.
Second-type products are used as separation valves, the control of the ball position is performed by rotation. Such structures refer to the class of shut-off reinforcement. However, B. household Systemsah Heating With a relatively small water consumption, these cranes can work and mixers, as well as their type - valves with sector constipation.
The rod drive is two types:
- electromechanical;
- hydraulic;
- pneumatic
- manual.
In turn, electromechanical drives are divided into groups:
- Thermostatic. Often in the easily-sensitive version occurs in the valves of household heating systems.
- Thermostatic head with a remote temperature sensor installed in the pipeline. Usually, such heads are installed by customer request. On triport valves instead of regular thermostatic drives. By the way, this scheme is widely used in outdoor heating circuits.
- Electric drive under the controller with temperature sensors. Being the most common, this type of trimmer valve drive is the most accurate.
- Servo. The servo valve is essentially a simplified version of similar designs with controllers. Unlike them, the servo directly without the controller controls the three-axis valve. More often such a system is used in structures with a ball or segment flow regulator.
Manual drive is carried out by rotating the plastic cap.
Information about products of the main manufacturers
Three-line mixers equipped with ESBE electric drive
Applied not only in heating, but also in refrigeration systems. 3mg series made from a special brass alloyWhat allows you to use such mixers in systems with high sanitary and hygienic requirements. VRG brass devices are used in general-purpose systems. The product VRG131, for example, can be purchased for $ 65-70. Series F constitute compact cast iron mixers.
In general, the mixers of this lineup have long proven to themselves high levels Quality, durability and reliability.
Valtek production faucets
Valtek has emerged as a result of close and successful cooperation between Russian and Italian developers. Despite youth, the company has gained popularity in a short time high quality Products combined with reasonable price. Manual sample can cost $ 40-50. Products from Valtek have a seven-year warranty.
Danfoss, HONEWELL and HEIMEIER Faucets
Products from Danfoss can be purchased for $ 40-70. In popularity, the company approaches Valtek. As for products from HONEWELL, this line is also distinguished by durability. His products. The management of the mixers of this company is characterized by simplicity and reliability. HONEWELL mixers are also compact.
HEIMER mixers with a thermostatic head costs $ 35-40. The German quality of this goods of the buyer will not disappoint.
In the heating systems, the three-way valve is indispensable as a temperature controller. With the correct selection of the model and the optimal installation scheme of the system, the expected effect will certainly be achieved.
Further the development of three-way trail mixers areHaving increased functionality. But the description of these products is coming out for the thematic framework of the article.
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In a wide range of shut-off valves used in heating networks, there is one element that is used infrequently. In the form, it looks like a tee, but the internal filling from the latter is different. Yes, and its appointment is completely different. This is a three-way valve for heating with thermostat. The scheme of its installation, as well as the principle of operation will be considered in today's review.
Three-way valve with zonal type thermal head
Basically, the three-way valves are divided according to the principle of action. Here are three positions:
- mixing,
- dividing
- switching.
The first mixed two fluxes of the coolant with a different temperature in one, the second, on the contrary, are separated by one thread to two. And the third simply switches the movement of water from one direction (contour) to another. Two first varieties of appearance A diagram is applied to each other, so the scheme is applied to their case, which shows for which purposes the device must be used.
As for the third position, it is easy to distinguish it from the rest. It additionally has a block with which the switching occurs. The valve of this type is usually installed in a double-circuit, when it is necessary to redirect the stream from the heating system to and vice versa.
Article on the topic:
Device and principle of operation of the three-way valve in the heating system
So, first of all deal with the device. To make it easier to understand that inside the valve, it is necessary to consider the photo below, on which the device is shown in the context. It consists of three pipes (two lateral one below), between which the mixing chamber is located. From the fourth side (top) there is a thermal head that is responsible for controlling the temperature of the coolant.
Inside the instrument from the thermostat, a spring-loaded rod with two flat decay valves is coming. Their diameter corresponds to the diameter of the saddles of the nozzles. Instead, one ball valve placed inside the mixing chamber between two saddles can be installed. With a pressure of the valve, the valves are partially overlapped from the lower nozzle and open the top. All the same is the same on the contrary, if the rod rises up.
But here it is necessary to figure it out, for what laws work is working, under the action of which force it is lowered or rises. It's all about the thermal head. Inside it is a temperature sensor filled with a special fluid. It is heat sensitive. Once the temperature of the coolant begins to rise, the liquid is expanding and rises along the capillary tube into a special bellows (capacity), which is located in the thermal head. The reservoir itself begins to expand, the topics and presses the rod. The latter lowers and opens the lower nozzle, from which cold water comes from the three-way valve. Hot comes from the left pipe (see photo).
Of course, simply, with any increase in water temperature, pressure cannot happen. To do this, the thermal head has a gradation for temperature, which is adjusted manually. It is the parameter that is the moment of pressing the rod.
So, the rod reacted to change the temperature of the coolant in the feed pipe, opened the lower for cold water, and inside the valve there was mixing hot and cold media to the required temperature. That is, it turns out that the temperature of the coolant at the entrance has not changed, and at the output it became less.
In the event that the coolant continues to heat up, the rod may fall to the lowest possible position. That is, he will completely close the filing hot water And completely open the flow of cold. And it will continue until the heat carrier inside the heating system does not fall to the desired temperature. After that the upper valve opens, it will start hot water.
This is what the mixing regulating three-way valve operates. As for the separation model, the principle of operation is almost the same, only on the contrary. In one nozzle, it includes a coolant, inside the body of the device it is divided into two streams and leaves two adjacent nozzles.
This type of shut-off reinforcement is installed on those areas where the flow of the coolant is to divide into two contours. One of them will be with a constant thermal regime, another with variable. The first is the fluid flow to which the quality requirements are presented. The second with the requirements in quantity. At the same time, a purely structural stream with a constant hydrodystone never overlaps, because in the design of the device the length of the rod is made in such a way that the valve does not cover the constant circuit.
But it is necessary to designate 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. Thus, the flow rate and pressure of the coolant in the heating system is regulated. As you can see, the principle of operation of the three-way crane is quite simple. The main thing is to accurately select the type of device and install it in the desired place in the scheme.
How the three-way thermostatic valve works in the "Warm floor" system
In order to be clear how the valve circuit works, an example of circulating the coolant in the warm floor system can be cited. The three-way valve for the warm floor is mixing. Circulation scheme Here is:
- hot water through the collector enters the heap system;
- it should have a certain temperature that is tracked in the process of passing through a three-way valve;
- as soon as its value exceeds the allowable, the valve opens one of the contours, which is connected to the reverse of heating;
- inside the cooled coolant arrives, lowering the temperature,
- after that, mixed water enters the heating circuit of a warm floor;
- as soon as the temperature falls to the desired, inside the valve overlaps the loop of the contour with the return.
Three-way valves with drives
Experts argue that adjusting the three-way valve using a thermal head and sensor is the simplest and more accurate. In addition, it has no cost of electricity. That is why this type of three-way valves is popular today. But you can control the process in other ways. Simple of them - manual. Let's say straight, not the most accurate option, because the range of stem immersion depth is set by a handle located outside the valve body.
Attention! The valve with such adjustment is recommended to be used only in those heating systems, where the temperature differences are insignificant.
The second option is to control temperature regime With the help of electric drives. They receive commands from the controller.
Three-way electric drive valve
Installed on valves engines are often called servo drives. In essence, these are ordinary electric motors in which the shaft is not spinning, but turns to a certain degree. It should be noted that this category includes any types of engines, for example, thermal. The main thing is to perform the condition of rotation, not rotation.
Manufacturers today offer two positions regarding the configuration. The first is a complete package that includes a controller and a temperature sensor. It is possible to immediately adjust the device to the desired temperature, as well as an angle of rotation, for example, from 0 to 180 °. In this case, any intermediate values \u200b\u200bare possible. The second is a separate drive with a sensor inside to which the controller must be added, as a separate item.
As for the controller, this is a device that solves signal control tasks. In the case of heating, it responds to the temperature changes that the temperature sensor signals the temperature sensor. He processes signals and decides what to do - open the valve or close, or rather, turn clockwise or against. Today manufacturers offer a huge model line of three-way cranes with electric drives. One of the most popular brands is "ESBE" (Sweden).
ESBE three-way valve with electric drive
First of all, it is necessary to designate that this brand of valves inside the ball with through slots is located. The latter open or close two channels, the third always remains open. Through it, the heat carrier comes into the heating system. Degree rotation - 90 ÷ 180 °.
In stores, the valve of this model is sold separately from the servo, so before installing them are connected by inserting the axis (shaft) of the actuator into the upper part of the rod. It has a hole under the axis. After that, it is necessary exactly according to the instructions attached to the device, to configure in terms of temperature regime.
Today the manufacturer offers a wide enough the lineup ESBE three-way valves with a drive and without that:
| Photo | Model | Purpose |
|---|---|---|
 | VTA 200. | It is intended for systems where there is no recycling of water. |
 | VTA 270. | This is a heat-mounted thermo valve. It is installed if the heating is organized in the room at least 100 m² |
 | VTA 310. | Total use valve in any heating systems, where the temperature of the coolant does not exceed + 95 ° C and the pressure of 0.3 atm. |
 | VTA 300 / VTA 360 | Two models are distinguished from each other only by the direction of water movement in the heating system. Well controls the temperature even when the pressure surges inside the network. |
 | VTC300 | This is a three-way valve without a servo. It can be installed in systems in which low-power boilers are used - up to 30 kW. |
 | DN25 | This is a three-way valve for solid fuel boilers. That is, it can withstand the temperature of the coolant to + 110 ° C. At the same time, the capacity of boilers should not be less than 150 kW. This is one of the most unpretentious devices from all those present on the market. It can work under any conditions in any heating networks without quality change. |
 | VRG131 | This is the most popular and in demand, which is used in apartments and private houses. |
Other models of three-way valves
Another famous brand is a three-way valve Roven from the South Korean company. It should be noted that this device is an integral part of the two-circuit boiler of this manufacturer. And it is installed inside the heating equipment. Its main purpose is to divide the coolant for feeding to the heating network and for hot water supply.
Attention! Naven valves are not subject to repair. The main reason for the breakdown is a gear transmission from the motor to the rod. Spare parts are not sold anywhere. When the device fails, the device must be replaced.
Danish company Danfoss is a well-known manufacturer of three-way valves. It offers four models that are intended for different systems:
| Photo | Model | Purpose |
|---|---|---|
 | VF3. | Used in air conditioning and heat supply systems. Production material - cast iron. With flange compound. |
 | Vmv | Applies only in heating systems. Production material - bronze or stainless steel. |
 | VRB3. | This is a mixer that is also used in heating systems, and in refrigerators. Material - stainless steel. |
 | VRG3. | Installed in heating networks or during refrigerant transportation. Material or stainless steel, or cast iron. |
Three-way valve connection circuits to heating network
After all the analysis relative to the design of the valve and its principle of operation, an understanding appeared how it can be used in various heating systems. Most often it is used in three cases.
- In the warmest system, the temperature of the coolant should be within + 45 ° C. It is this mode that is supported using the device. This was mentioned above, and it was shown how it should work.
- To protect against education inside the condensate firebox. It happens when relatively strongly cold water in the reverse enters the heat exchanger of the generator. From this, water drops from condensed steam are formed on the outer surfaces. It is impossible to allow, because condensate reduces the life of the equipment.
- If there is a need to maintain different temperature regime in different parts of the heating system.
There will be no first option, because it has already been described. As for the second case, it is necessary to take the photo below as the basis.
On the diagram of the double circuit: one large passes through the radiators, the second is short through (this is a vertical red line, the beginning of which is at the top to the radiators, the end rests on the valve at the bottom). While the boiler did not warm up, the coolant moves along a short circuit. The temperature rose to the necessary, the valve closes the bypass and opens the reverse (lower blue line).
And the third position, which is based on the distribution of the coolant for consumers, in them the required temperature is not always the same. For example, for the boiler of indirect heating, water is required with a larger temperature for batteries with a smaller, and for warm floors and less.
Attention! In such a scheme, there is no need to install regulating locking valves in front of the boiler.
Scheme of wiring with the installation of a three-way valve should be approximately as shown in the photo below.
Three-way heating valves with fixed heat carrier temperature
This is the so-called budget option. For the price it is cheaper than 30-35% of devices with drives. What it differs from all others. There is no rods in its design, no sensors, no thermal heads. Inside the so-called thermostatic element is set, which is configured to a certain temperature of the coolant. For example, it can be either + 45 ° C, or + 65 ° C. That is, the indicator can be any depending on the requirements of the consumer of hot water.
The element is chosen at the factory and is installed there, therefore, on the valve, you must indicate which temperature at the output will be after it. For example, if you need a warm floor valve, then we select with a temperature of + 45 ° C. The positive side of these devices is their cheapness. Negative - the inability to adjust the temperature regime of water.
Attention! If the valve of this type is installed on the bypass of the 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 water temperature in the reverse circuit. It is on it that the device is selected.
Size: px.
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Transcript.
1 Three-way separation valve Thermostatic three-way control valves for heating and cold supply systems
2 IMI Heimeier / Thermostatic Heads and Radiator Valves / Three-Weight Dividing Valve Three-Weight Dimensional Valve Trekhodovaya Dividing Valve for Distribution of Mass Flow Fluid in Heating and Cold Systems. Key Features \u003e\u003e Case of injection bronze, corrosion resistance and safety \u003e\u003e Stainless steel rod with double ring seal \u003e\u003e External ring seal can be replaced without drainage system Description The three-way separation valve is designed to distribute fluid flow in heating or cooling systems, manufactured From bronze and equipped with a protective cap. The valve rod is made of stainless steel and is equipped with a double ring seal. Outdoor ring seal can be replaced without a system drainage. Models: with flat seal, flat seal with tee. Connection with threaded fittings, soldering or welding fittings. Models: with a conical seal N 15, with external thread G 3/4. Connection with compression fittings IMI HEIMEIER for plastic, copper or thin-walled steel pipes. Maximum permissible working pressure 10 bar. Par low pressure 110 C / 0.5 bar. Permissible differential pressure N 15 \u003d 1.20 bar N 20 \u003d 0.75 bar N 25 \u003d 0.50 bar Design three-way separation valve (black protective cap) II III 2
3 Principle of operation Electrothermal drive EMO T (brochure: "EMO T") Used for two-point control using an external source of emitalization. In a normally open (NO) valve model, the direct channel I-II of the three-way separation valve is open in the absence of voltage supply, and the curved output channel I-III is closed. In normal-closed (NC), the valve model, the direct channel I-II of the three-way dividing valve is closed in the absence of voltage supply, and the angle output channel I-III is open. Thermostatic heads (Brochure "Thermostatic head K with a contact or submersible sensor" and / or "thermostatic heads") are used for proportional control without using an external source of emitalization. When working, intermediate positions of the valve rod are also possible. As the temperature rises, the direct channel I-II closes, and the angle output channel I-III opens. Electrothermatic actuators EMO 1, EMO EIB, EMOLON and / or EMO 3 / EMO 3/230 are used for proportional control and / or three-stage regulation using an external source of emitalization. The actual directional direction of the stem is determined by the type of regulator or the EMO type connections (brochure "EMO", "EMO EIB", "Emolon"). Application Distribution function Switching between heat-consuming devices, such as heating circuits and a DHW KNTRTur, or between different heat generating devices, such as water heaters, heat pumps or solar power systems. Control output parameters of heat exchangers by adjusting the consumption of the coolant / coolant, for example, for air heaters, air coolers or other heat exchangers. A stable voluminous consumption in the primary circuit is supported. Mixing function Mix adjustment by means of a return pipe (external mixing point). Approximately equal volume flow in the secondary circuit. Principle of action Pay attention to the flow direction. Distribution function Mixing function I II MISCHPUNKT 9 III 10 III II I 3
4 IMI Heimeier / Thermostatic Heads and Radiator Valves / Three-way Dividing Valve Options for Application ABCE 1. Copper on liquid / gas fuel 2. Heating circuit 3. Hot water boiler 4. Solid fuel boiler 5. Heat exchanger 6. Air heater 7. Fancoil 8. Balancing valve Ta STA 9. Primary circuit 10. Secondary circuit Note According to Directive VI 2035, the coolant composition should not cause corrosion destruction of heating systems, as well as exclude the possibility of forming scale in the DHW system. For industrial and main power systems, VDTUV 1466 / AGFW 5/15 norms apply. The coolant contaminated with mineral oils or lubricants can have a strong negative effect on seals from EPM rubber, which, as a rule, leads to a violation of the valve sealing. A. Switch between heat pipes. For example, between heating circuits and hot water boilers using the EMO T (NO) drive. B. Switch between heat generators. For example, between water heaters on liquid / gas fuel or water heaters on solid fuels, using the EMO T (NC) drive. C. Control of the coolant consumption for adjusting the temperature of warm air in the carrier guns using a thermostatic head to equipped with a contact sensor .. Regulation of the thermostatic head to an equipped with a contact temperature sensor, water consumption in the primary circuit at a given flow temperature in the secondary circuit to heat the DHW circuits, industrial water bodies and swimming pools. E. Hydraulic Control Control (air conditioners / convectors with coercive air movement) using the EMO T (NO) drive. When using permitted, non-corrosion of antifreezes (neurovenitic solutions based on ethylene glycol), pay special attention to the requirements of the manufacturer specified in the documentation, in particular,% of the concentration and additives of inhibitors. four
5 Specifications Nomogram three-way separation valve with a drive 50 N 25 (KVS 5,12) N 20 (KVS 3,48) N 15 (KVS 2.47) N 15 (KVS 2,25), p [kPa] 0.3 3 0, 2 2 0, m [kg / h] p [mbar] p [mm Water Walb] three-way separation valve with thermostatic head K *) three-way separation valve with immersion / contact sensor KV value P-range [K] 2.0 4.0 6.0 8.0 N 15 0.60 1,20 1,71 2,10 2.47 N 15 with tee 0.57 1,11 1.58 2.00 2.25 N 20 0.70 1.50 2,39 3,10 3,48 N 25 1.08 2.28 3.48 4.62 5,12 *) KV values \u200b\u200bcorrespond to the flow in the direction of the I-II under the given system deviations. In models without a tee, KVS corresponds to the flow in the I-II direction at a fully open valve and in the I-III direction with the valve closed. In models with a tee, KV / KVS quantity corresponds to the flow in the I-II direction. KVS Example of calculation Find: PV pressure loss Dano: three-way separation valve N 25 with thermoelectric drive EMO T Heat flow Q \u003d W Temperature adjustment T \u003d 20 K (70/50 C) Solution: Mass flow M \u003d Q / (C ΔT) \u003d 21000 / (1,163 20) \u003d 903 kg / hour Pressure loss by nomogram PV \u003d 31 mbar 5
6 IMI Heimeier / thermostatic heads and radiator valves / three-way separation valve articles of products Three-way separation valve with flat seal n product with a tee, with a flat seal N of a conical seal product, with compression fittings for a copper pipeline Ø 15 mm N products with a conical seal, With external thread G3 / 4 N products
7 Extra Equipment for three-way sealing valves Connecting fitting for three-way dividing valves with flat sealing valve N Products Threaded fitting 15 (1/2) R1 / (3/4) R3 / (1) R Sputter for soldering 15 (1 / 2) (1/2) (3/4) (1) Welding fitting 15 (1/2) 20, (3/4) 26, (1) 33, additional equipment for three-way mixing valves with conical seal Compression fitting for Copper and steel thin-walled pipes. Commonition with external thread G3 / 4. Nickel plated brass. With the thickness of the pipe wall 0.8 1 mm, the support sleeves must be used. Observe the manufacturer's guidelines. Products Support sleeve for copper or steel thin-walled pipes with a wall thickness of 1 mm. Brass. L products 12 25, compression fitting for copper and thin-walled steel pipes. Connection with external thread G3 / 4. Soft seal. Nickel plated brass. Products Compression fitting for plastic pipes. Connection with external thread G3 / 4. Conical seal with sealing ring. Nickel plated brass. Products 14x x x x x
8 IMI Heimeier / Thermostatic Heads and Radiator Valves / Three-Weight Dividing Valve Pasmers `Flat Seal Flat Seal, with Tee Conical Seal SW L1 H SW L2 HH L4 LL L3 NL L1 L2 L3 L4 H SW 15 G3 /, 5 26, G, 5 31, G1 1 /, 0 33.5 47 SW \u003d wrench size L L Threaded fitting R1 / 2 27,5 13.2 R3 / 4 30.5 14.5 R, 8 L l Fitting on soldering L d fitting under Welding 20, assortment, texts, photos, graphics and charts can be changed by IMI Hydronic Engineering without prior notice and explanation of the reasons. Additional information about the company and products you can find on the site
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REGULUX Radiator cut-off valves Radiator Cutting Valve with IMI Heimeier Drainage / Thermostatic Heads and Radiator Valves / Regulux Regulux Regulux Applied in Screen
Eclipse thermostatic radiator valves with IMI HEIMEIER limiter / thermostatic heads and radiator valves / Eclipse Eclipse The Eclipse thermostatic valve is equipped with a unique built-in
Multilux -clipse-Set design series C double connected for two-pipe heating systems, with automatic IMI HEIMEIER Flow Limiter / Design / Multilux -Clipse-Set Multilux -Clipse-Set
Standard thermostatic radiator valves Thermostatic valves without prior configuration IMI Heimeier / Thermostatic heads and radiator valves / Standard Standard Thermostatic valve
Dynacon system for system Warm floor distribution unit with automatic flow regulation IMI HEIMEIER / Warm floor control / Dynacon Dynacon Dynacon provides automatic
Thermostatic Radiator Valves A-EXACT Thermostatic Valve Limiter Maintaining Pressure Balancing and Control Thermostatics Engineering Advantage Thermostatic Valve A-EXACT
Thermostatic valves with connected to Duolux radiators Set of valves for connecting radiators Maintaining pressure balancing and control of the thermostat of Engineering Advantage Duolux Full
Regutec Radiator Cutter Valves Radiator Cutting Cutting Valve IMI Heimeier / Thermostatic Heads and Radiator Valves / Regutec Regutec Radiator Slopping Valve Regutec
Vekotec Eclipse Armature for radiators with built-in valves Armature with automatic flow limit for radiators with lower connection, with built-in thermostatic valves IMI Heimeier
Radiator cut-off valve Regutec Radiator shut-off valve Maintaining pressure balancing and control of the thermostat of Engineering Advantage Radiator shut-off valve
System Collectors Warm Paul Dynacon Distributional Block with Automatic Control Advancement Maintenance Pressure Balancing and Control Thermostatics Engineering Advantage
Thermostatic head to with a contact or immersion sensor Thermostatic heads for regulation in the average temperature range of IMI Heimeier / Thermostatic heads and radiator valves
Multilux Eclipse Thermostatic valves for connecting radiators with double connections for two-pipe heating systems, with an automatic IMI Heimeier flow limiter / thermostatic heads
MultiBox AFC Regulators for Systems Warm floor Embedded Individual Temperature Controller with Automatic Flow Limiter For Floor Heating IMI Heimeier / Heavy Paul Regulation
Thermostatic head to with contact or submersible sensor Thermostatic heads M30x1.5 connection with contact or immersion sensor IMI Heimeier / Thermostatic heads and radiator valves
Radiatric strapping Description two-pipe system Single pipe system Distributor with a locking device without it. Axial valve with a black protective cap. Pressure pipe and clamping threaded connections.
V-EXACT II Thermostatic Radiator Valves Thermostatic Valve With Pre-Setup IMI Heimeier / Thermostatic Heads and Radiator Valves / V-EXACT II V-EXACT II Thermostatic
TBV-C combined balancing control valves for imi-Ta two-position control / control valves / TBV-C TBV-C valve TBV-C, designed to install on system consumers
Gobo Ball Cranes Ball Crane from Bronze IMI EIMEIER / Shut -ling fittings / Gobo Gobo Gobo ball valve is used in water heating pressure systems as a universal locking device.
MultiBox regulators for systems Warm floor Embeded air temperature control unit in separate room For floor heating systems IMI HEIMEIER / Heavy floors / MultiBox
Dynalux system collectors Warm floor camshaft IMI HEIMEIER interpretation / warp / DYNALUX DYNALUX control unit DYNALUX directly adjusts consumption in separate heating
Armature for connecting heating devices With valve insert to be precise. Description Armature for connecting heating appliances with HEIMEIER VEKOTEC valve insert with shutdown function.
MultiBox Eclipse Regulators for Systems Warm floor Embedded Individual Temperature Controller with Automatic Flow Limiter For Outdoor Heating IMI Heimeier / Heavy Floor Regulation
Balancing and regulating valves TBV-C Balancing and control valve for installation on a consumer for two-position regulation Maintaining pressure balancing and controlling thermostat
Valve set to connect radiators to Be Precise. Table of contents Page Description of valves 3 Dual-pipe system Description 4 Design 4 Scope 5 Operation 5 Product numbers 6 Technical
Combined balancing regulating valves Balancing and control valve, independent of the pressure drop / control valves / balancing and control valve, independent
Combined balancing control valves (DN 15-25) Balancing and control valve, independent pressure drop / control valve / balancing and control valve,
Calis-TS 7761 0999 Calis-Ts BC 7761 AA 37,5 Ø 75 1001 LLL 6220/6221 6236 6240/6241 ABC 1 7761 01 1/2 "3/4" 30 30 22 1 7761 02 3/4 "1" 37 , 5 34 22 L 1 6220 21 1/2 "31 1 6220 11 1/2" 40 1 6220 12 3/4 "
Calis TS RD three-way distribution valve 100% for heating and cooling systems Normal 7761 Rd Edition 1007 dimensions, mm Order Size R A B C KVS P Max. (bar) 1 7761 38 1/2 3/4 30
In the process of designing the heating system, the required power of thermal devices is calculated. So manages to provide comfortable living conditions in the premises. However, external factors may be present, due to which the temperature conditions in the house may vary. To maintain the specified temperature in the room, you need to adjust the temperature of the coolant in the heating circuit. For this purpose, a three-way valve for heating is designed. By applying the thermostat, the temperature control temperature becomes more convenient.
Another purpose of such a valve is the distribution of the coolant in different contours. For example, the water of one temperature should flow into heating radiators, and in the "warm floor" system, the temperature of the coolant should be different. The three-way valve does not serve to reduce the flow of the working medium, but only mixes several streams into one, informing it to the specified temperature. Either separates one stream to two, going to different contours.
Structurally, a three-way valve for heating with a thermostat or without a metal housing with three nozzles. Inside the case is a mechanism that controls the coolant flows in automatic mode. This mechanism is two types:
- Saddle. It is controlled by a working rod that moves up and down. The end of the stem is made in the form of a cone. Inside the valve, there is a saddle, which is overlapped in a partially or fully conical rod tip in the process of its movement.
- Turning. It serves a ball or a sector that has an opening for a passage of fluid. This ball turns out, opening or overlapping the coolant stream. The principle of operation is the same as the usual ball crane.
Briefly consider how a three-way valve has a thermostat. The temperature of the coolant is held by the crane at the specified limits. When the temperature changes relative to this limit, a change in the volume of the expanding fluid (gas) is occurring, which is in the thermostat. The liquid presses on the rod, which opens a highway with a cold or hot liquid. Thus, the temperature is again aligned to the specified indicators.
Types of valve
According to the principle of operation, this reinforcement is divided into 2 types:
The internal design of the two types of valves differs noticeably. In a mixing type valve, a rod with one overlapping element is installed, which moves between two feeding nozzles. In the divided crane on one stock there are 2 such elements. When one valve opens the first pass, the second valve automatically overlaps the second nozzle.
Three-way valve management
The three-way valve for heating with the installed thermostat can be controlled manually or automatically:
1. Manual control. Such a three-way thermostatic mixing valve is practically no different from the usual ball valve. Its purpose is given only 3 nozzles on the case. The hosts of the premises can independently adjust the degree of heating of radiators and the "warm floor" system, the temperature in other circuits. To do this, just turn the handle to the appropriate position. Despite the fact that such cranes are inexpensive, they are not quite comfortable to use them. It is necessary to constantly monitor the temperature of the coolant and regulate it. 
2. Automatic control . Such a three-way valve works without outside interference. Just only once set it up. There are the following varieties of external drives, crane operation:
FEATURES OF MANDATE OF THE THREAT VALVE
The three-way valve in the heating system can be mounted in both single-circuit and multi-rone distribution of the coolant. For example, this option is perfect for a two-circuit system in which the coolant is sent to heating radiators, as well as to the "warm floor" system.
Read in a separate article: - Various schemes.
Installing the valves of special complexity does not represent. On the crane case there is an arrow showing the direction of the coolant flow in the system. Therefore, to establish the valve is incorrectly impossible. The only thing you need to pay attention is to the location of the valve. It must be embedded in the highway to circulating pump. This guarantees the normal performance of the heating system.
When installing a three-way valve is performed, it is necessary to ensure that inside the crane did not get extraneous objects or trash. This requirement is particularly relevant if the valve is installed in a weld method. A piece of scale or a drop of molten metal can break the normal operation of the crane, and even lead to its enclation. That is why a threaded connection is preferable.
For regulating the temperature of the coolant in heating systems, it is responsible however, in practice there are heating schemes with several contours, each of which requires water with a certain temperature. So that it becomes possible, the three-way crane is introduced into the system. The principle of operation of this device is based on the separation of liquids with different degrees of heating.
Design of three-way crane
Externally, this device looks like an ordinary brass tee or bronze with a valve installed on its upper face. It is rigidly connected to the adjusting sector - a spherical plate of metal, which mixes two fluid flows. The mixing tee has two inlet nozzles for hot and cold water, and one output is for feeding a mixed heat carrier.
The indicator according to which the group is allocated to which the three-way crane belongs is the principle of operation. It is based on changing the position of the valve, together with which the position of the adjustment sector changes. Crane in varying degrees overlaps two fluid flows.
By changing the amount of hot and cold water, which enters the main system, and the temperature of the coolant is regulated. Depending on the type of control, allocate:
- manual;
- electric;
- thermostatic crane three-way.
The principle of operation of each device has fundamental differences.
Manual three-way cranes
Manual cranes have special swivel handles - lambs - which is controlled by the control of the coolant flows. By installing the valve to a certain position, it is possible to change the amount of heated and cold water that enters the system.
The uneven and long-term heating of radiators located at a significant distance from the boiler is the main drawback, which has a manual three-way crane. The principle of operation of this device does not allow constantly variation of the amount of incoming fluid with different degrees of heating.
Electric three-way cranes
The main difference of the cranes of the named type is the presence of a servo and an electronic control unit, with the help of which the temperature of the coolant is carried out. The main advantage of the device is the ability to maintain a predetermined degree of fluid heating in automatic mode.
A servo can be equipped with any three-way crane. The principle of operation of such devices is based on the interaction of the control unit and the electric motor. The block measures the temperature of the output environment and gives commands to the propulsion. The one by changing its position adjusts the amount of warm and cold liquid entering the system.
Thermostatic three-way cranes
The design of the presented crane has a thermostat - gas or special liquid. It is placed in the valve allotted for this and responds even to minor changes in the heating of the current medium.
With increasing temperature, the liquid or gas expands and pushes a special piston, which overlaps access to hot water.
The principle of operation of the three-way valve with the thermostat requires its exact setting before introducing into the system. To do this, set the limit temperature values, thereby adjusting the heating of the coolant. The main advantage of the device is absolute autonomy.
Dividing three-way faucet
The equipment described above is intended for mixing liquids. various temperatures. The principle of operation of the three-way valve of the separation type has several serious differences. As clearly from the name, it is used to separate one stream of water from the other. Unlike mixers, only one inlet nozzle and two weekends are available in the separation crane, which are located on the same axis.
In these devices, the adjusting sector with a change in the temperature of the main liquid overlaps the openings of the outlet nozzles. Such equipment is most often used to switch fluid flow from one pipeline system to another, which allows you to adjust the amount of water simultaneously in various heating circuits and in other structures.
Features of the choice of devices
The first thing to pay attention to, choosing a three-way valve, is the principle of operation of the device. Manual designs are suitable for budget heating systems, for example, for country housewhere you are once in season.
Electrical devices can be used in the heating circuits of buildings intended for permanent residence. If you bet on ease of operation and reliability, then better choose the taps with the thermostat.
For S. Systems high temperatures The coolant is not recommended to acquire a three-way crane, the principle of operation of which is based on the expansion of fluid or gas - they will quickly fail. Special fittings should be installed in such structures.
It is important that the diameter of the pipeline coincides with the diameters of the input and outlet nozzles of the crane. Only in this case does not suffer the bandwidth of the contour, and the installation will be made without additional items.
A special popularity of both our compatriots and all over the world use the three-way ESBE crane, the principle of operation of which is based on expanding the thermoregulation fluid. Such devices are distinguished by high reliability and accuracy suitable for most heating systems.
Suitably approach the selection of three-way valves for complex heating schemes. Otherwise, you risk getting a little efficient system that will not cope with your duties.
