Balancing valve: principle of operation. Balancing valve: classification, types, installation rules. What does a balancing valve do? Balancing valve in the heating system principle of operation

The efficient operation of the heating system is largely determined by its balance. It allows you to prevent the likelihood of situations where an excess amount of coolant is supplied to one radiator, while an insufficient amount is supplied to the other. To do this, the heating system should include Danfoss balancing valves, the principle of operation of which allows hydraulic balancing (coupling) of coolant flows through various elements of the heating system or stabilizing circulation pressures or temperatures in them.

If necessary, it is possible to install pipeline throttling fittings from other manufacturers, which will eliminate the instability of the heating system, difficult start-up of the system, uneven distribution of the coolant and the resulting uneven heating of the premises.

What kind of valves are there?

Balancing valves are usually divided into:

• automatic (dynamic), which are able to maintain a constant pressure drop in the risers of a two-pipe or flow in the risers of a single-pipe heating system;
• manual (static), which can be used as an adjusting diaphragm, in those systems where there is no automatic control device or the installed regulator does not allow limiting the flow rate. They belong to valve type devices.

Brass balancing valve

It should be noted that all modern systems heating systems that use radiator thermostats are dynamic systems. As a result of operation, the radiator thermostat constantly responds to the slightest changes in the air temperature in the room, thereby changing the flow rate of the coolant, which brings the heating system into a constantly changing (dynamic) mode of operation. This mode of operation necessitates the use of automatic (dynamic) balancing valves.
Also, valves are usually classified depending on:

• working medium used: water, glycol solution, steam;
• parameters of the working environment: pressure, flow, temperature;
• installation locations: supply or return pipeline, bypass;
• type of building (single-apartment or public);
• operating function, providing for the regulation of pressure, temperature, flow of the working medium. A combination of them is also possible;
• type of connection, which can be threaded or flanged.

For the manufacture of valves can be used various materials. Static valves are usually made of brass (can be flanged and threaded) or cast iron (only flange connection). In the manufacture of dynamic products, brass, cast iron or carbon steel can be used to ensure the required technical characteristics.

For convenience of regulation of the valve can be completed:

• fixed position lock;
• shutter position indicator and setting value;
• branch pipe for drainage of the area where the valve is mounted
• measuring diaphragm, which allows for high-precision determination of the flow rate;
• nozzles for measuring the flow rate of the coolant, pressure and pressure drop across the valve.

Valve principle

The main difference between a balancing valve and a shut-off valve is that it can work when the shutter is in an intermediate position. It should be noted that the design of the balancing valve may be different. There are valves in which the stem is located at an angle relative to the flow, and the spool is made not only straight, but also cylindrical, conical or radial. Consider the principle of operation of a valve having a straight stem and a flat spool.

Straight stem valve

During operation of the valve, the flow area between the spool-seat pair changes. Due to this, the balance of the system is achieved. The spool is located in a plane parallel to the axis of the pipeline. While in a plane located perpendicular to the perpendicular axis of the pipeline, there is a threaded spindle, to which the spool is pivotally connected. In the valve body there is a fixed threaded nut, which together with the spindle forms a running pair.

Due to the rotation of the setting handle, the torque is transmitted through the spindle and the fixed threaded nut associated with it, as a result of which the spool is given a translational movement, as a result of which it moves from the lowest to the highest position. Being in the lowest position, the spool is tightly connected to the seat in the valve body, thereby hermetically blocking the flow.

Depending on the type of coolant used, the hermetic shutoff of the flow is ensured by the use of a seal between the valve and the seat, created by fluoroplastic or rubber rings or metal-to-metal. As a result of changing the flow area, the capacity of the balancing valve changes, which is understood as a value numerically equal to the flow, expressed in m³ / h, through a fully open valve, at which the head loss will be 1 bar. Dependence of throughput on changing the position of the shutter can be seen in technical specifications valve.

BALLOREX valves

The Polish company BROEN BALLOREX in its Venturi series is engaged in the production of a manual balancing valve with high control accuracy. Such a valve is a valve that performs two functions:

• valves with manual adjustment;
• shut-off ball valve.

It allows balancing and hydraulic regulation, flow limitation, opening and closing of the flow of the working medium in the system, as well as measuring the temperature of the working medium and flow using a standard flow meter. It can be purchased in various designs. The range of these valves is available with nominal diameters from DN 15 to DN 200 and nominal pressures PN 16 Var and PN 25 Var. Valves with a nominal diameter from DN 15 to DN 50 and a pressure of 16 Var have a flange connection, and valves with a pressure of PN 25 Var have a threaded connection.

Valve BROEN BALLOREX

All balancing valves and their elements (valve body, measuring diaphragm, shut-off ball, adjusting stem) with a nominal diameter from DN 15 to DN 50 are made of chrome-plated brass. And balancing valves with a nominal diameter from DN 65 to DN 200 are made of steel with a flange or threaded connection.

Valves of the Venturi series with the same conditional passage are produced with different throughputs depending on the type of execution: high (H), standard (S) and low (L). In addition, the Venturi series is available in two types Venturi FODRV and Venturi DRV these valves have flow control measuring nipples. All valves of this company can be installed in any position on any section of the pipeline before or immediately after the branch, before or after the narrowing of the pipeline.

Also, this Polish company offers automatic balancing valves in various modifications. Ballorex DP valves are installed on the return pipeline, providing the necessary pressure drop on the circulation ring under any load. This makes it possible to stage-by-stage commissioning of the object due to the possibility of zonal balancing. The use of Ballorex DP makes it possible to eliminate noise phenomena caused by overpressure generated in other parts of the heating system.

Valves from the Danish manufacturer

Another manufacturer is the Danish company Danfoss, which supplies valves of all types, which are of high quality. MSV-BD LENO™ manual valves are a new generation of valves. They allow you to solve problems of hydraulic balancing of heating systems. At the same time, they combine the functions of a standard manual valve and a ball valve, thus providing a quick and complete shut-off of the flow. Most models allow you to take data at the outlet and inlet, however, some models have a nipple on one side only.

Automatic valve ASV-M

Automatic ASV-M, the price of which allows us to talk about the optimal ratio of price and quality, can be used as a shut-off valve and, if necessary, to connect the impulse pipe from ASV-P(V). ASV-I. It allows you to limit the maximum flow rate of the transported coolant. The valve is completed with special plugs for measuring nipples. By installing nipples, you can measure the flow rate of the coolant that flows through a specific section of the system.

ASV series valves are of high quality. They allow you to maintain a constant pressure difference between the supply and return pipelines. The ASV-P, installed on the return line, is characterized by a fixed setting of 10 kPa. Whereas ASV-PV has a measurable setting of 5-25kPa and ASV-PV Plus is 20-40kPa.

How is the installation carried out?

When performing installation, it is very important to ensure the correct position of the valve. In this case, the arrow on the body must coincide with the direction of movement of the coolant. This position will ensure not only the desired design resistance of the valve, but also the required flow rate. At the same time, it is worth noting that some manufacturers allow the possibility of installing the valve not only in the direction, but also against the flow. The stem, at the same time, in most models, can occupy a different spatial position.

During the installation process, it is worth protecting the working bodies of the fittings from the ingress of various mechanical contaminants. To do this, a sump or a special filter must be installed in front of the valve. To eliminate the turbulent movement of the liquid, it is necessary to provide straight sections of sufficient length before and after the valve. This requirement must be indicated in the documentation for the valve.

A heating system equipped with a balancing valve must be filled in a special way. To do this, in systems equipped with dynamic valves, it is imperative to provide filling fittings, which must be located in the immediate vicinity of the valve on the return pipeline. And the valves mounted on the supply pipeline must be prudently closed. To adjust the balancing valve, a special flow meter or differential pressure and flow tables are used. However, in any case, the initial calculation is carried out at the stage of calculating the heating system.

Good day to everyone who reads this post! In it I will tell you about balancing valves for heating systems. Let's start by understanding what we need balancing valve in the heating system.

Why do you need a balancing valve?

In modern large heating systems, uneven heating is often observed. different rooms. This is due to the different flow rate of the coolant through the branches of the heating system. The coolant (like electric current) tries to flow along the path of least resistance, therefore, at a great distance from the heat source (heat unit or boiler), the flow rate should be less than near it. In order to equalize the coolant flow through different branches, balancing valves are used.

As can be seen from the upper figure, the flow rate in heating circuits of different lengths will be different and the temperature in the rooms will also be very different. Now let's talk about the types of balancing valves.

Types of balancing valves.

Balancing valves are of two main types:

Danfoss has made a very interesting video on how manual balancing valves work. I recommend that you watch this video from start to finish. It shows unexpected patterns of operation of this type of valve:

It can be seen from the figure that internal organization An automatic balancing valve resembles a piston pressure reducer, but the functions of these devices are completely different. I bring to your attention two videos on this topic:

To simplify the adjustment of heating systems, special valves are connected to the balancing valves. measuring instruments, which simplify and speed up system balancing. Look at the picture below:

Installation of balancing valves.

The installation of the balancing valve is carried out in exactly the same way as the installation of ball valves. The position of the valve in space does not affect its operation, but you need to pay attention to the arrow that indicates the recommended flow direction. If it is mixed up, then the valve will create more resistance to the flow of the coolant. Valves can be installed both on supply and return pipelines.

The operating temperature and pressure may vary depending on the specific model, so it is better to select the equipment you need using the manufacturer's catalogs. You can find them on the official websites of manufacturers.

Summary.

The installation of balancing valves is necessary in large heating systems. They allow you to optimally distribute the coolant over all circuits. For the operation of such equipment, it is important correct installation and subsequent setup. Consideration should be given to the installation of valves at the design stage of the system. That's all, I'm waiting for your questions in the comments!

The larger the heating system, the more difficult it is to ensure uniform distribution of heat to all rooms without exception, no matter how far from its source they are. To temperature regime was uniform, mechanisms for adjusting the heat flow are built into the heating network in different areas. The most common and effective of them is the balancing valve in the heating system.

Show all

general characteristics

There are several types of methods by which heat flow is regulated. In the first of them, pipes of different diameters are used to regulate the volume of coolant passing through the radiators. Another one is based on the use of special washers that correct the passage of the amount of heated water needed in this area.

A detailed description of these methods is not of interest, since they are already outdated and are not used. A modern mechanism for adjusting the supply of coolant is the installation for heating balancing valve, consisting of:

• durable brass body, equipped with pipes for connecting pipes, with a saddle located inside in the form of a special vertical channel;
• a cone-shaped spindle screwed into the seat body to adjust the flow of the coolant;
• rubber sealing rings;
• plastic (less often - a metal cap).

The main part of the device - two special fittings responsible for:

• determination of intrasystem pressure on both sides of the valve;
• capillary tube connection.

Each of the fittings has a pressure meter, and in case of a difference in values, it is necessary to calculate the rational amount of water flow.

Balancing valve VT.054



Operating principle

The principle of operation of the balancing valve in the heating system is to adjust the cross section of the through hole for the coolant inside the pipeline. With the help of the working elements of the valve, it is possible to adjust the heating system at any time without stopping its operation, to achieve a comfortable thermal regime in heated rooms with minimal energy consumption.




Rotation of the adjusting handle causes the spindle to move up or down, respectively opening or closing the through hole in the pipe or reducing its cross section. Reducing the cross section of the through hole creates an obstacle to the movement of water, artificially increasing the flow rate. As a result, water reaches the remote circuits faster and with less heat loss. This ensures uniform heating of all rooms.

With constant changes in operating pressure, it is important to ensure reliable tightness of the connections inside the valve. For the product of spindle o-rings use:

• fluoroplast;
• dense rubber;
• metal.

Danfoss manual balancing valves. Hydraulic balancing of engineering systems



Valve types

There are two types of valves: manual and automatic. Each of them has its own advantages. Manual balancing valve is more suitable for heating pipelines small size with stable pressure, usually installed in individual houses and apartments. Here, balancing valves are installed on each radiator.

In addition to the individual configuration of each battery, if necessary, such a configuration provides repair individual elements systems without turning it off completely. Another advantage of a manual valve over an automatic valve is its lower cost.



Automatic faucet

Automatic devices for adjusting the supply of coolant are much more expensive than manual valves. They are installed on the risers of heating systems of apartment buildings, office buildings or industrial premises.

The principle of operation of the automatic valve is not the same as that of a mechanical crane. With manual adjustment, the amount of coolant passing through the pipe per unit time depends on the flow area, which is set using the valve.

And in the automatic system, the valve is constantly set to the maximum water flow; the pressure and quantity of the coolant supplied to the pipeline is regulated by means of thermostats and capillary tubes installed on the radiators.

Balancing valve with internal thread STAD

Balancing valve installation

Each balancing valve has an arrow on the body that indicates in which direction the fluid should move inside the body in order to minimize turbulence that affects the correct settings. The arrow serves as a guide when mounting the mechanism on the pipeline.

The device is installed on straight sections of pipes so that the length of the flat part of the pipe in front of the valve is at least five of its diameters and at least two at the outlet. You need to mount it in the return branch of the system, for this you only need a plumbing adjustable wrench.

During installation work several rules must be followed. First, a mandatory check is carried out, followed by flushing and cleaning the pipeline from the possible presence of metal chips or other foreign objects in it.

If the device has a removable head, it must be removed before installation, following the instructions. This makes it easier to install the valve. Then one end of the tap is screwed onto the pipe. The other end is connected to the radiator through a coupling. To seal the thread, it is necessary to use flax fiber threads impregnated with a special lubricant.

Manual balancing valves - master class

Setting methods

After installing the balancing valve in the heating system, it must be set to energy-saving mode. To do this, each valve is supplied with instructions for calculating the optimal number of revolutions of the handle. The valve can be adjusted in two ways.




Professionals use a simple and time-tested method. By dividing the number of valve turns by the number of radiators, they determine the corrective step for each valve. So, if the spindle speed is 4.5, and the number of radiators is 10, then the step is determined by 0.45 turns. The system will be optimally adjusted if each valve, starting from the last radiator, is open plus 0.45 turns.

For a faster and more accurate second method, it is necessary to use a contact type thermometer. To adjust, you will need to heat the system to 80 degrees with all valves open and measure the temperature of each radiator separately. Temperature discrepancy is eliminated by screwing the first and middle taps. Usually 1.5 turns are enough for the first valve, and 2.5 turns for the middle ones. After allowing the system to adapt, after half an hour to make control measurements.

The use of both methods eliminates temperature differentiation when heating radiators and promotes uniform heating of all rooms with a minimum consumption of thermal energy.

The installation of balancing valves in the heating system ensures uniform heating of all rooms without exception and economical consumption of energy resources. This is especially necessary for large heating systems. This device best of all helps to distribute the coolant along its contours. But the technology of installation work should be considered even when designing the heating system, since the quality of the valve operation depends on its correct installation and configuration.

All calculations in the design of the heating system were made correctly, the heating systems were installed in strict accordance with the plan, and the room is still cool. Most likely, the problem is the uneven distribution of heat throughout the building.

In some rooms there is a lot of it, while in others it is not enough. Only a balancing valve for the heating system can solve this problem.

Proper adjustment of the system using balancing valves allows you to redistribute the heated water to the radiators, so that each of them receives a sufficient amount of heat. This happens due to fine tuning and control of the coolant flow, its pressure and temperature.

Five reasons to balance

1. Errors in design calculations.
2. Deviations from the project during installation.
3. Replacing batteries with those unaccounted for in the project.
4. Piping configuration changes.
5. Failure to comply with the rules of operation (failure to flush and clean).

Even one of these factors can cause permanent failures in heating. As a result, air plugs of oxygen and hydrogen are formed in the pipes, the temperature regime laid down by the project is violated, and there is an overexpenditure of energy for heating the coolant.

For hosts, this translates into:

• the absence of comfortable temperatures in the rooms, even with fully open shut-off valves on batteries and the maximum load on the boiler;
• significant fluctuations in room temperature with an initially even load in the heating system itself;
• difficulties during start-up (it is not possible to reach the rated power).

Types and features of work

Balancing valve for the heating system: principle of operation and types. IN Soviet times for regulation of water supply and heating systems in apartment buildings throttle washers were used. And in order to get the desired level of water flow, it was necessary to block the pipelines and disassemble them.

A modern balancing valve in a heating system is a conventional valve, but supplemented with a flow meter and fittings for connecting measuring instruments.

They are installed in addition to heating systems, also on air conditioning pipelines with water supply and on the "warm floor". They are also used in apartment buildings for balancing risers and in private cottages to regulate heat transfer in each of the rooms.

The principle of operation is to change the size of the flow section using a spool that blocks the flow when the handle on the valve body is rotated. That is, when the cross section decreases, the hydraulic resistance in a particular section increases, which equalizes the flows in different pipes.

In principle, it is not much different from a conventional crane, but the change in cross section occurs more smoothly.

All balancing valves are divided into:

• manual (static);
• automatic.

The first are quite cheap and quite cope with the tasks. Allowing you to adjust individual sections and the entire system as a whole by changing the pressure and flow rate of the coolant. And they make it possible to track the parameters of the working environment at control points. And if necessary, disconnect a separate section from the general system and carry out repair work on it.

But there is a significant drawback. The setting is made for average parameters, which are calculated based on the constancy of the coolant flow. And with its significant changes and fluctuations, the entire balancing turns out to be unusable.

Balancing autovalves are mounted in pairs on the inlet and return circuits. The pair is connected to each other by a thin tube, through which the shut-off valve is controlled when a pressure difference occurs between the control points.

After the correct initial setting, the automatic crane will not require attention in the future.

Balancing valve installation

The installation of a balancing valve in the heating system should only be carried out if there are really problems with the distribution of heat to individual radiators. Or in the case of the construction of a new building, where balancing fittings are provided for by the project.

Inserting valves into an already operating system is likely to be a waste of money. There are many other ways. For example, pick up pipes of a different diameter or adjust the parameters at the heating unit and automate it.

The valve is mounted in accordance with general rules work with pipeline systems. But at the same time, several nuances must be observed:

• on each body of the balancing valve, the direction of flow is indicated, it must be observed when inserting fittings into pipes;
• it is unacceptable to get inside any foreign objects and dirt;
• when using an automatic model nearby, it is necessary to provide an additional fitting for the initial filling of the circuit when the valve is completely closed;
• before the balancing valve there should be a straight pipe section of five of its diameters, and behind it of two - this will eliminate the appearance of turbulence in the pipeline.

In practice, the installation of balancing valves in the heating system and its professional balancing can save up to a third of heat. At the same time, the price of all works is minimal. But all adjustments should be trusted only by experienced heating engineers.

Of course, it is possible to find the optimal balance on your own by experience. But it is better to trust professionals armed with instruments and formulas for the necessary calculations.

The problem of uneven distribution of heating in multi-circuit heating systems is quite common. The coolant flow is similar electric current, so it follows the path of least resistance. It turns out that the farther from the boiler, the less heat consumption is than near it. To equalize this indicator, the craftsmen use a balancing valve.

Sometimes, in order to save money, an ordinary crane is installed to adjust the level of patency, but this setting is coarser and inaccurate, while the balancing valve does its job perfectly. The choice is influenced by the result that the tenants seek to obtain. Often, craftsmen install a ball valve with a long switch and turn the lever in a different direction, which also causes inconvenience. The balancing valve device initially has special inputs that serve as flow measurements. It uses the elements of the heating system to the maximum, makes them give off all the heat, with the possibility of adjustment at any time.

Design and principle of operation

The mechanism is that the valve device changes the internal flow area. Turning the handle activates the nut and spindle. When unscrewing, the final element rises to the upper position from the lower one. If it is located in the lower part, the parts reliably block the flow, preventing the coolant from passing through the pipes. In other words, when the valve is unscrewed, the spool passes a certain amount of heat, increasing the permeability. When closed, the opening narrows, making the flow negligible.

The radiator structure required for the mechanical adjustment of the heating branches is based on the following elements:

• brass frame with threaded pipes for connecting pipes. There is a cast seat on the inside round shape in vertical format;
• locking and regulating spindle with a working area in the form of a frame, which enters the saddle when twisting. It determines the exact amount of water flow;
• sealing ring made of rubber;
• a cap made of metal or plastic that acts as a protector.

Main models of valves differ from radiator ones in dimensions, inclined spindle arrangement and fittings. They perform the following role:

• coolant drain;
• connection of measuring devices;
• installation of a capillary tube from a pressure corrector.

The number of revolutions from the closed to the maximum open state is from 3 to 5, this indicator is different for each manufacturer. To change the position of the stem, an ordinary or specialized key in the form of a hexagon is required.

What is the pressure difference between two points

When the master adjusts the flow rate using the balancing cock, the pressure losses on the pipes and on the valve become different, which changes the pressure drop on the balancing valves.

The calculation of this difference is worth considering with an example. So, pressure gauges are installed on the supply and return pipelines, which show the pressure level at these points. The difference will be considered the value that equates to the difference between the two pressure gauges. In other words, if one device outputs 1.5 bar and the other outputs 1.6 bar, then the difference is 0.1 bar. If the valve is automatic, it automatically corrects the difference between the points. This element always comes in pairs, since it is very important to feel the deviation.

Mechanical balancer

The manual valve works great at stable pressure. Ideal for apartments and houses with a small number of heating radiators. Simplifies carrying out repair work, because it does not need to turn off the entire heating system. Effective action is carried out in those rooms where the number of radiators does not exceed 5 units.

With a significant number of batteries, mechanical devices cause the valves to malfunction. At the moment when the thermostat on the first radiator is closed, the fluid flow on the second one increases. Then the temperature of the coolant in some batteries rises to boiling, but in others it heats up too little. Only automatic valve models can cope with such a problem.

Automatic balancer

Installation of devices is carried out on branches or risers with a large number of radiators. They differ from the first type in the principle of operation. The valve is moved to the position of maximum fluid consumption. When the coolant flow rate is reduced by the thermostat of one of the radiators, the pressure rises. Then the capillary tube mechanism begins to work, which immediately proceeds to the analysis of the pressure drop. In general, the advantages of automatic balancers are as follows:

• the presence of a capillary tube, which contributes to the instantaneous operation of the adjustment;
• the mechanism does not change the pressure level, preventing vibrations from disturbing it;
• if desired, craftsmen can create "independent regions".

The flow adjustment is carried out so quickly that the following thermostats do not yet have time to completely overlap. This ensures that the system is constantly balanced.

Applications

In private homes, mechanical models are often used. They are quite enough to heat a building up to 500 m². Installation of manual valves of the main plan is carried out in the following situations:

• in buildings with an extensive heating system with many risers;
• in multi-apartment buildings equipped with an individual boiler room;
• during tying a solid fuel boiler with an existing heat accumulator.

Radiator models are installed at the outlet of the heater, while main valves are installed exclusively in the pipeline that returns the cooled liquid to the boiler room. If the structure is mounted in tandem with an automatic valve, then it can be located both in the return and in the supply pipeline.

Steel and aluminum radiators with a lower connection, they are often initially equipped with taps using specialized fittings that act as attachments for connections to such parts. The need to install valves also disappears in the following cases:

• in dead-end mechanisms of insignificant length, with identical “shoulders” in terms of hydraulics;
• when all batteries have thermostatic valves with presetting;
• on the final radiator (dead end);
• in the mechanisms of the collector plan.

Temperature controllers with presetting, mounted on the liquid supply, also cope with the work of the balance valve, due to which a shut-off ball valve can be connected at the outlet of the heating mechanism. Similarly, the armature is installed on the connections to the last battery in the chain, and since there is no need for adjustment, it must be completely open.

Installation and operation

Professionals leave a small gap in front of the valve and straight pipe. This prevents the occurrence of bends that impede the movement of water. In order to protect against the ingress of dirt and dust on the adjustment elements, a special filter is installed directly in front of the valve. The pipe itself must be washed before installation, checked for damage. Further, the installation is carried out as follows:

1. The master is determined with the area where the valve will be mounted in the future. The dimensions of the straight zones of the pipe before and after the element must correspond to the following parameters: 5 diameters in front of the part, 2 and more after it, as this eliminates turbulence.
2. The valve is screwed into the pipe, pre-equipped with tow. Threading can be done with a die or other similar tool. The main thing is that it be at least 7 turns.

The installation of the valve is easily carried out according to the principle of installing a ball valve. How exactly the valve itself is placed in space is not particularly important. The main thing is that the arrow on the body corresponds to the direction of the water flow. Otherwise, the part will contribute to fluid resistance.

How to balance the radiator network

Often, craftsmen find out the flow rate of the coolant as follows: the number of revolutions of the balancing valve is divided by the number of heating elements. In this way they calculate the adjustment step. Further, moving from the last battery to the first, the valves are twisted based on the degree of speed difference.

The calculation is approximate and takes into account the different capacities of the batteries, which is why the method is resorted to only before pre-setting during operation. Only specialists can correctly configure the device, since the process needs additional skills and knowledge. Step by step it looks like this:

1. All valves open and are brought to the working format, where the supply temperature is equal to 80 °C.
2. The temperature of all heating elements is measured.
3. The identified difference is eliminated: the taps of the first and middle batteries are slightly opened. The closest one opens by 1-1.5 turns, the second - by 2-2.5.

After 20 minutes, the master takes measurements again, since during this time there is a complete adaptation to the new settings. A perfectly tuned system has a minimum temperature difference between the nearest and farthest radiator.

Manufacturers

Today, the most famous manufacturers of balancing valves are the brands Danfoss, Herz, Caleffi, Oventrop and others. They produce products in two formats - angular and straight. The principle of their work is identical, so only the form changes. The pressure and temperature index for all manufacturers is also different. It is advisable to choose exactly the faucet that fully corresponds to the characteristics of the heating system.

The balancing valve contributes to the uniform distribution of heating in multi-circuit systems. It does not matter how far the radiator is from the boiler, as a properly adjusted valve allows heating all rooms at the same temperature.