Balancing valve for the heating system for what is necessary and how to install it

For numerous homeowners, keeping their home warm and comfortable throughout the winter season is of utmost importance. Preserving comfort and reducing energy expenses require a heating system that is operating at peak efficiency. But raising the thermostat isn’t the only thing you need to do to get the most out of your heating system. The balancing valve is one important part that greatly affects how efficient your heating system is.

In hydronic heating systems, a balancing valve controls the amount of hot water that flows to various radiators or zones in your house. Inadequate balancing could result in uneven temperatures and energy waste as some places get too much heat while others stay cold. By installing a balancing valve, you can increase comfort and reduce energy consumption by ensuring that every part of your house gets the ideal amount of heat.

So why precisely is a balancing valve required for your heating system? Now picture your home’s heating system as a system of pipes that supplies hot water to different areas of your house. The amount of heat required by each radiator or zone may vary based on the size of the room, the degree of insulation, and the desired temperature. In the absence of a balancing valve, hot water could flow through some zones too quickly, overheating them while leaving other areas underheated.

The relatively simple process of installing a balancing valve can have a big impact on your heating system. Finding your hydronic heating system’s primary supply and return lines is the first step. These are usually located in your home’s utility room or boiler room. You can then decide on the best places to install the balancing valves after you’ve located these lines.

The principle of valve operation

The balancing valve’s ability to function when the shutter is in an intermediate position is the primary distinction between it and the shut-off. It is important to remember that balancing valve designs can vary. Certain valves have a spool that is not only straight but also cylindrical, cone-shaped, or radially shaped, and the rod is positioned at an angle to the flow. Think about the working principle of a valve with a flat spool and a straight rod.

Straight rod valve

A change in the passage between the two spool-saddle changes occurs during valve operation. As a result, the system’s equilibrium is reached. The spool is situated in a plane that is parallel to the pipeline’s axis. The threaded spindle, to which the spool is jointly attached, is situated in a plane perpendicular to the pipeline’s perpendicular axis. A fixed threaded nut that forms a chassis with the spindle is present in the valve body.

The setting handle rotates, transmitting torque through the spindle and a fixed threaded nut attached to it. As a result, the spool experiences progressive movement, moving from its extreme lower position to its extreme upper position. In its lowest position, the spool is hermetically overlapping the stream because it is securely fastened to the valve body’s saddle.

A sealed flood overlap is guaranteed by the type of coolant used, the seal formed by rubber or fluoroplastic rings between the shutter and saddle, or by the metal type. A change in the passage section causes a change in the balancing valve’s bandwidth, which is defined as the value that is numerically equivalent to the consumption expressed in m³/h when the valve is fully open and there is a 1 bar pressure loss. The technical features of the valve show how the bandwidth changes in response to shutter position changes.

A few words about manufacturers of balancing valves

Danfoss is arguably the most well-known and well-liked company that manufactures heating and refrigeration equipment, including the valves that we have discussed. Some sources claim that this manufacturer produces goods worth 2 billion euros a year.

Regarding other well-known producers who enjoy popularity in the home market, these can be credited to:

  • Vexve from Finland;
  • Adl (this is a company from Russia);
  • Broen from Denmark;
  • Giacomini from Italy.

It’s time to familiarize yourself with a few of these devices’ most widely used models. The data below is displayed as a pivot table for the convenience of website users.

Table: List of features and costs for common balancing valve models.

Name, photo Characteristics, brief description Average cost, in rubles
1. CIM 790 DU15 High -quality automatic device that is equipped with a cartridge. The minimum fluid flow rate is 0.007 liters per second, and the maximum is 3.154 liters. Additionally protects the equipment from high loads and hydraulic shocks. 4500 buy
2. VIR DU15-50 R25 bar Manual device from Italy made of brass. There is the possibility of preliminary tuning, as well as subsequent fixation. There is a pair of measuring nipples and a special handle. Muft type connection. From 1391 to 6525 buy
3. CIM 727ot DU15 KV 3.9 Cimberio Another manual valve from the already known manufacturer. There is the possibility of fixed settings, as well as special settings from third -party intervention. The device can be completely closed without resorting to reconfigure after that. 1600 buy
4. D50 CIM 727 A distinctive feature of the model is an indicator of the working pressure, otherwise the characteristics are similar to other products of this brand. 4160 buy
5. USV-I Du 25 Danfoss The next balancing valve is made in Denmark and has a diameter, as you can guess from the name, 2.5 centimeters. The operating temperature is in the range from minus 20 to plus 120 degrees. Performance indicator – 4 cubic meters per hour. Maximum working pressure – 1.5 bar. 2768 buy
6. Tadano TR100M-1 366-047-00000 High -performance valve, the cost of which is fully consistent with the characteristics declared by the manufacturer. The latter can vary somewhat. From 15,000 to 100,000 buy
7. DU50-300 mm KBCh Product of domestic production, the working diameter of which varies between 5 and 30 centimeters. The specific value of the valve varies similarly. From 3460 to 130140 buy
8. Herz Stremacs-GF flan. DN100 German production, a distinctive feature is the presence of a flange connection. Working diameter indicator – DN100. The cost depends on the specific seller (specify).
9. VIR 9505 DU 80, ru 15 High -quality Italian brass valves that can be used not only for heating, but also for air conditioning, water supply. The permissible temperature of the coolant is from minus 10 to plus 100 degrees, working pressure should not exceed the mark of 25 bar. Muft type connection. 4100 buy
10. Stremacs-M DN25 Unit from the already known brand Herz. Manual device, there is the possibility of preliminary setting. You can also talk with confidence about remembering the degree of configuration. The maximum permissible temperature is plus 130 degrees, performance – 10.4 cubic meters of liquid per hour. 2200.90

Take note! As we can see, prices vary greatly. Foreign-made valves are typically more expensive than domestic ones, but they are frequently of higher quality.

You still have the final say in this matter, so we will only learn about the features of the next installation.

The principle of operation of the balancing valve in the heating system

The definition and appearance of a balancing valve are well known. However, his work’s underlying principle is not widely known.

The scope of the valve

The purpose of this valve, also known as a crane, is to balance hydraulic circuits (such as those for engineering systems, heating, etc.). The valve can precisely regulate the allowable coolant flow rate, greatly boosting the heating systems’ efficiency in the process.

Cranes for balancing are used to ensure that the water supply is heated uniformly. By using the valve, all heat expenses are balanced so that the batteries receive the precise amount of hot liquid that is required. Heat is dispersed uniformly throughout the building’s rooms because of the balancing valve.

Unlike other taps, this valve can operate in an environment with high speed and relatively strong pressure drops.

Valve design

With a few modifications, the valve design is based on the ball valve design. These could consist of a pipe (with a crane fixed on its surface), a measuring aperture, a position fixer, and a shutter indicator. The actual crane body may be constructed out of brass, silumin, or steel. Generally speaking, the seal is a particular membrane system. Although these sealed taps cost significantly more, they don’t need to be maintained.

Fluid consumption is the fault of the bolt and valve saddle. Regarding the valve’s rod, it can be straight, oblique, ascending, or descending. When purchasing a balancing valve, you must also consider the rod’s feature.

A slanting rod provides less hydraulic resistance than other valves of a similar design. These balancing cranes have good consumable characteristics and a fairly high control.

The main characteristics of the valve

This valve not only has several extra settings and devices, but it can also precisely control the amount of heat used. For instance, the crane can modify the preliminary settings, the temperature fuse and bypass valve’s operation, and the expenses’ smooth/stepped setting.

Video: The operation and advantages of automatic balancing valves

Regardless of their type, all balancing cranes have the following features:

The crane’s operating temperature ranges from -20 to +120 degrees. Its minimum installation length is required. Information is analyzed directly, without the need for extra devices. It doesn’t require extra weight. It is small in size,

– composed of sturdy metal that won’t deteriorate over time.

Every heating system needs balancing valves. The number of valves needed for the system to operate properly is mounted based on the size of the heating area. The type of heating system in the room will also directly affect the use of the required balancing equipment.

What are the valves for balancing

The distribution of thermal energy in pipes and radiators cannot be adjusted by standard ball valves used to heat radiators. Nevertheless, such an adjustment is just required to ensure that the heat is distributed evenly throughout the rooms.

There are two varieties of balancing valves: automatic and manual. The network must be configured manually during installation, and the heating network’s parameters are automatically changed when the heating occurs.

When choosing the valve, there are a number of factors to consider, which include:

  • type and characteristics of the coolant;
  • installation site in the system;
  • adjustment characteristics;
  • adjustment parameters;
  • classification of buildings;

The coolant that a heating system uses directly affects its type. Water, steam, or antifreeze can all be used. They have a direct impact on the system’s performance.

The goal of the system is one of its key features. The hot and cold water supply and heating systems have very different parameters.

For instance, the DHW system exclusively uses thermostatic balancing valves.

The kind of building in which the balancing valve is installed is crucial. Given the significant differences in characteristics between the supply and reverse pipelines, the valve installation site is also fairly important. The balancing devices that will be installed on them will differ significantly as a result.

Where and when the trunk crane is installed

Manual radiator valves are found in most private homes. For standard water heating in cottages with an area of no more than 500 m², they are more than sufficient. The following situations require the installation of main type balancing valves in the heating system:

  • in buildings where an extensive heating network with a large number of risers is installed;
  • in apartment buildings that are heated by their own boiler room;
  • When strapping a solid fuel boiler with a heat accumulator.

Вогда понятие о назначениях балансировочных вентилей, установки конкретных местах необходимо разобраться. Radiator valves need to be installed on the pipeline that carries chilled water from customers to the boiler room at the heater’s output, or at the return and trunk. Depending on how the scheme is designed, the element can be installed in the supply pipeline or in the opposite location if it is used in conjunction with an automatic pressure regulator.

Note: In order to connect the carts to such devices, balancing taps that are built into special accessories are already present on aluminum and steel radiators with lower connections.

The following situations are listed where installing regulatory valves is not required:

  • in dead end systems of small length, in which the “shoulders” are the same in hydraulics;
  • In the case when the batteries are equipped with thermostatic valves with an intending;
  • In collector -type heating systems.
  • on the last (dead end) radiator of heating;

A delaying ball valve must be installed at the heating device’s output because thermoregulators that are intended to serve as balance valves on the water supply to the battery also do this function. Since it makes no sense to regulate it and it should be fully open, such reinforcement is installed on the eyeliner to the last radiator in the chain.

A brief description of the device

Therefore, we discovered that heating system balancing is crucial. Furthermore, it’s critical to balance water systems, especially those in private homes and cottages, to guarantee the proper operation of air conditioning, heating, and hot/cold water supplies, as well as pools, bathtubs, watering systems, and other fixtures. Additionally, throttle goal adjustment, which was once common and necessitated stopping and disassembling the water system, lost favor in favor of more contemporary tools, such as the balancing valves mentioned above.

Even if you calculate and arrange a heating system efficiently, you still have to do the initial setting, and later, with subsequent operation, also frequent adjustment of the distribution of heat and pressure. This is possible thanks to the use of regulatory reinforcement – special gearboxes, bypass and, of course, balancing valves. Visually, these elements are difficult to distinguish from each other, especially the beginner, as well as from a simple locking valve, but each of them has its own purpose. Using the gearboxes, the upper threshold of the pressure is limited to the network, but the bypass valves are necessary to adjust the flow of the coolant in the areas through its redistribution. And finally, balancing valves allow you to configure the balance of temperature/pressure balance in various parts of the line.

Even a standard valve can be the most basic type. The only thing that makes this situation different is that the indicators can be "stretched," or delicately adjusted, within the ranges of distinct pipeline sections by means of specialized balancing devices that are intended for a narrow interval of indicators. Additionally, these devices have measuring bends, which enable precise tuning or inspection of the indicators on each main section using specialized equipment.

Take note! The use of these valves in heating systems is crucial because they allow the distribution of thermal energy to be adjusted for the working fluid in every circuit within the network.

Principle of operation

In the figure, the valve device is clearly visible. But we must ascertain what the underlying principle of its operation is.

The ventricle of the valve moves in response to rotation of the adjusting handle. The cross sectional area between him and the saddle therefore shifts.

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As a result, when the throughput varies, the coolant flowing through a large or small portion of the valve changes in pressure. As a result, each heating device can have uniform heat distribution thanks to pressure adjustment.

Two balancing valves are installed in the system, one on the entrance circuit and one in the return, to automatically adjust the distribution of heat. They are related to one another. The system’s balancing effect will occur automatically.

However, to achieve this, the entire heating system will need to be accurately adjusted and configured at the very beginning, during the first launch. When used in accordance with all manufacturer specifications, the balancing apparatus functions flawlessly.

Note: Some people attempt to install a ball crane instead of a balancing valve by mistake, based on the advice of local "Kulibins." As soon as the system is launched, it becomes immediately clear how ridiculous this idea is. There is no application from any side for the regulatory reinforcement tap.

Installation of the valve

This device should only be installed in the following two scenarios:

  • when erecting a new structure, the presence of balancing reinforcement in which is provided for by the project;
  • When there are problems with the distribution of heat on certain branches of the heating system.

The reinforcement has to be installed so that there is a free section of the pipeline that is at least twice as long as the pipe’s diameter after it.

The guidelines for handling pipelines must be followed when installing a valve, but it’s also important to consider the following details:

  • Before the balance valve there should be a straight pipe section of 5 of its diameters, and behind it – in 2. So the turbulence of the coolant will be excluded;
  • Cutting the reinforcement into pipes, it is necessary to observe the direction of the flow. It is indicated on the body of each device. This rule is relevant when replacing the valve;
  • The ingress of dirt and any extraneous objects is unacceptable;
  • If an automatic model is used, it is necessary to provide for the presence in the immediate vicinity of the additional fitting. With a valve closed, it will provide a complete filling of the contour.

Well informed! Practical experience has shown that you can save nearly one-third of the heat by installing an adjusting valve and having your heating system professionally balanced. In addition, even skilled heating equipment—which is actually who should be trusted with their installation—can be quite expensive, out of reach for the average citizen.

In addition to the flow meter, the flow table and pressure difference are used to set the automatic balance valve.

However, it is crucial to complete the first computation when designing the heating system.


  • Adjustment can only be carried out when data on calculated indications will be obtained. You can get the latter from the documents of the thermal system project. The setting is given in accordance with the valve diagram and the obtained indicators. The rotation of the handle sets the spindle in motion, which, in turn, adjusts.
  • If a radiator thermostat is installed in the apartment, this means that it will constantly change the volume of the coolant, depending on the slightest fluctuations in the temperature in the room. In this case, it is immediately necessary to install an automatic balancing valve, the second name of which, by the way, is “dynamic”.
  • It is important to follow the direction of the flow indicated on the valve body.
  • During installation, you should ensure that there is no garbage or extra items inside the pipeline. Otherwise, the operation of the device may be violated.

  • When operating the automatic valve, you will have to think over an additional fitting for the initial filling of the circuit.
  • Although all the work can be done independently, it is better to trust professionals. A qualitatively completed procedure will ultimately save up to a third of the heat consumed.
  • If we talk about brands who have gained consumer trust, then one of the best in the world is the Italian Giacomini. The cost of the valve will be about 5,000 rubles. If preference is given to high -quality domestic products, then pay attention to Danfoss or Watts. In the first case, you will have to pay 2300 rubles, and in the second and even less – only 1,500 rubles.

Watch the video below for an inspection of one of these balancing valves.


Apart from controlling the coolant flow rate, the balancing valve has the capability to incorporate extra devices and configurations. For instance, a temperature fuse, a bypass valve, a drainage device, a filter for use in older systems, and the ability to control a smooth or stepped cost setting.

Crane types used for balancing.

The following traits apply to all balancing crane types:

  • The valve temperature can change from -20 to +120 degrees;
  • information can be directly considered without using other devices;
  • Minimum length necessary for installation.

The need for balancing

According to the heating system’s design, the heating element will provide the ideal amount of heat at each heating point. Unfortunately, that is not always how it appears in real life.

In multi-story buildings, this type of image is particularly striking. Such a scene frequently occurs when the upper batteries are just a little warm while the lower floors are practically suffocating in the heat.

When the entrances are heated, the same circumstance occurs. Much cozier because it’s situated nearer the GVS’s front door.

The explanation for this temperature differential is that the heating radiator absorbs more heat in proportion to its distance from the hot water input. It comes naturally and gives. Devices with remote heating get less heat, making them colder. This indicates that there is a problem with the system’s hydraulic adjustment. The heat distribution balance equilibrium vanished.

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There are very few causes for the system’s imbalance. The principal ones are:

  • errors in the installation of the system;
  • error in the project or its change;
  • Planting of the system;
  • mismanagement to the heating system;
  • Ignoring seasonal service.

It must be adjusted in order to bring back consistent heating. Each heating device will receive a precise amount of heat as a result of this work. The house will be uniformly warm as the current temperature regime disappears. We use balancing valves to accomplish this.

It is important to remember that installing the balancing system will ensure that every heating appliance in the house is heated evenly.


The insertion’s rules are straightforward, but they must all be followed. If not, it will be impossible to get the desired result.

The following tasks must be completed during installation:

  • check the installation of the system;
  • cut the thread at the valve installation site;
  • prepare the valve for installation;
  • install the valve in its place in the system;
  • Install the filter in front of the valve.

A balancing valve needs to be configured after it is installed. Only experts are able to perform this process, which calls for specific tools and training.

Remember: never, ever attempt to install a heating balancing system by yourself. In the best scenario, the system won’t produce the desired result; in the worst, the heating system will need to be redone. Regulatory valves are produced by a number of manufacturers.

Among them, renowned businesses like Meibes, Broen, and Danfoss (Danfoss) hold one of the top spots. There is still more room on the list.

Regulatory valves are produced by multiple manufacturers. Among them, renowned businesses like Meibes, Broen, and Danfoss (Danfoss) hold one of the top spots. There is still more room on the list.

You have plenty of options to choose from in terms of both cost and quality. In the end, parameters like quality and dependability save the customer a lot of money in addition to providing comfort.

This is fascinating! In order to restart the heating system, heating was added.

Watch this video to see an expert’s detailed explanation of the mechanism and features of a manual balancing crane:

How to assign a radiator network

Heating system installers typically calculate the step of adjustment by dividing the number of balancing valve revolutions by the number of heating devices. This is how they set the heat carrier on the batteries. Closing the taps with the difference that results, move from the last radiator to the first.

For instance. We have five radiators with manual Overtrop valves that are in a deadlock system that requires 4.5 spindle revolutions on one "shoulder." We obtain a step of adjustment of roughly 0.9 turnover when we divide 4.5 by 5. Thus, the heating device that is penultimate opens with 3.6 turns, the third with 2.7, the second with 1.8, and the first with 0.9 turnover.

The method can be used as a preliminary setting that can be adjusted during operation because it is very approximate and does not account for the different power of the batteries.

More specifically, the heating schedule will be aided by the contact thermometer used to measure the surface temperature.

Our expert provides an alternative method that is based on taking the heater surface’s actual temperature. The following are step-by-step instructions for balancing:

  1. Open all balancing valves as much as possible and bring the system to the operating mode with a feed temperature of 80 ° C.
  2. Contact thermometer measure the temperature of all heating devices.
  3. Eliminate the resulting difference by twisting the taps of the first and medium radiators, do not touch the final. Open the near battery by 1-1.5 rpm of the valve, medium – 2-2.5.
  4. Let the system adapt to new settings for 20 minutes and repeat the measurements. Your task is to achieve a minimum temperature difference between a battery closest and closest to the boiler.

Note: Only the variation in radiator heating matters; the street’s temperature and the weather have no bearing. In addition, the supply of the Delta temperature will be even lower in the typical operating mode, which operates between 50 and 70 °C. Watch the expert’s video to learn how balancing valves help the system balance hydraulically:

Installation and operation

Balance valve installations are completed in compliance with manufacturer specifications. In order for the valve to produce a calculated resistance, if the case has an arrow, the device is mounted so that the arrow’s direction matches the direction of the transported environment’s flow. Taps for balancing that can be installed in any direction are made by certain manufacturers. Most of the time, the rod’s spatial arrangement is not fundamental.

In front of the valve is installed a company filter or standard mud to prevent mechanical damage from failing the valve. It is advised that valves be installed in straight sections of the pipeline to prevent undesired turbulence; the manufacturer’s instructions specify the minimum length of these sections.

If the heating system has automatic valves, the balancing valves on the supply pipe should be closed and special gas stations placed next to the valves on the return pipe should be used to fill it.

The coolant flow rate and pressure difference indicators on a table (attached to the device) or a balancer consumable are used to adjust the balancing valve. However, the initial computation of the operational parameters and consumption needs to be finished during the heating system design phase.

Balancing valve gathered

Design and principle of operation

The components of a radiator element intended for manual heating branch balancing are as follows:

  1. Brass housing with threaded pipes for connecting pipes. Inside the casting method, the saddle is made – a vertical round channel that expands a little upward.
  2. A shut-off-regulating spindle with a working part in the form of a cone included when twisting into the saddle and limiting the flow of water.
  3. Epdm rubber sealing rings.
  4. Protective plastic or metal cap.

The Caleffi brand’s product is displayed in the figure (website:

Notably, all reputable manufacturers—including Danfoss, Herz, Caleffi, and others—offer their products in direct and corner versions. Only the form of work is altered; the fundamentals stay the same.

The diagram above provides additional information about the balancing valve. It demonstrates how the passage section increases or decreases in response to the spindle’s rotation, necessitating adjustment. Depending on the product’s manufacturer, there can be anywhere from three to five revolutions between the closed and most open positions. You must use a standard or unique hexagon-shaped key in order to turn the stem.

The primary cranes vary in terms of radiator diameters, spindle tilt, and fittings intended for:

  • drain of the coolant;
  • connection of measuring devices;
  • connection of the capillary tube from the pressure regulator.

The primary valve’s device

As a point of reference. For instance, some Oventrop brand radiator valve models come with a drain pipe.

The introduction of new high-tech products has led to a constant expansion in the range of balance cranes. An equipped vertical Caleffi valve manufactured in Italy serves as an example.

If required, the product is mounted horizontally.


The dispersion of heat in different rooms is a defining feature of modern heating systems. The coolant flow rate determines how much heat is produced, and the water consumption only affects the balancing valve. The amount of heat received will move away from its source and decrease if you do not use this device. Accordingly, there will be variations in temperature at various locations throughout the network.

This issue was previously resolved in less complex systems by installing pipes with specific diameters or installing unique throttle goals. The latter are distinguished by a specific passage value that guarantees the intake of the necessary amount of water.

However, the flow had to be stopped and the pipes had to be disassembled in order to get the coolant to the required volume. To bring water consumption up to code, a balancing valve is used today.

The coolant flow is controlled by a specific valve in the design. Occasionally, two fittings are added to this mechanism to measure the pressure in various zones in connection to the regulatory mechanism. It also has a connection to the capillary tube so that it can work in tandem with other controls.

These valves come in two varieties: automatic and manual.

  • The first view, as you can guess by name, are manually controlled. Products are inexpensive and therefore are the most common. Changing the pressure difference and water consumption, they are able to set up both separate areas and a whole system. In addition, in the control points it will be possible to monitor the indicators of the working environment, and in case of breakdown, turn off any fragment and arrange repairs. Unfortunately, the setting of such valves is carried out subject to the constant flow of the coolant. If it changes, then the system will not be able to function. Therefore, it is better to install such models in private houses and with a simplified heating system.

  • Automatic valves – devices for which the participation of a person is not required. They independently regulate the volume of the spent coolant or the difference in pressure. Some models can work together using a pulsed tube, while controlling both the expense and the difference in pressure. It is also worth adding that very often measuring devices are joined to the balancing valves to make the system of debugging the system of debugging.

Attached to the input and reverse pipelines are automated devices. They are joined by a thin tube, which allows the valve to move and the water flow to overlap when pressure changes. Such a device only needs to be configured once and doesn’t need to be adjusted again.

The types of valves can vary based on the coolant (water, steam, or glycolic solution), the building (private residence or standard multi-story building), the installation location (feed or reverse pipeline), and the working conditions (distilled water work device pressure, temperature, and volume). Lastly, valves can exhibit additional characteristics. For instance, they can control pressure and have extra features like a measuring aperture.

In the case of manual models, valves are typically composed of brass and cast iron; in the case of automatic models, these materials are combined with carbon steel. It is also important to mention that they can be mounted on water-supplied air conditioning pipes and the "warm floor."

Ballorex valve

With its Venturi series, the Polish company Broen Ballorex is releasing a manual balancing valve with a high degree of regulation accuracy. A valve like this one serves two purposes:

  • manual control valve;
  • Overflow ball crane.

It enables you to perform hydraulic regulation and balancing, limit the flow rate, open and close the system’s working environment flow, and measure the working medium’s and flow’s temperature using a conventional flow meter. It is available in a range of performance. The nominal pressure of PN 16 VAR and PN 25 VAR, as well as the conditional passage diameter ranging from DN 15 to DN 200, are available for the valve data line. A flange connection is used for valves with conditional diameters ranging from DN 15 to DN 50 and pressures up to 16 var; a threaded connection is used for valves with pressures up to PN 25 var.

Broen Ballorex valve

Chrome brass makes up the valve body, measuring diaphragm, cutting ball, and adjusting rod of all balancing valves with conditional diameters ranging from DN 15 to DN 50. Additionally, the steel balancing valves with a flange or threaded connection have a conditional diameter ranging from DN 65 to DN 200.

Depending on the type of execution, the Venturi series valve with the same conditional passage is produced with different throughput: High (H), Standard (S), and Low (L). Furthermore, two varieties of Venturi Fodrv and Venturi DRV produce the Venturi series. There are control nipples for measuring in the valve data. This company’s valves can be installed in any position on any pipeline segment, either before or right after the withdrawal, and before or after the pipeline is narrowed.

Additionally, this Polish business sells automatic balancing valves in a range of configurations. Installed on the reverse pipeline, Ballorex DP valves provide the required pressure drop for any load on the circulation ring. Because zonal balancing may occur, a phased launch of the object into operation is necessary. By using Ballorex DP, we can get rid of noise phenomena, which are brought on by high pressure in other heating system components.

Danish manufacturer

Danfos, a Danish company, is another manufacturer that provides high-quality execution of all types of valves. The manual MSV-BD Leno valves are part of the new generation of valves. They make it possible to resolve heating system hydraulic balancing issues. Simultaneously, they integrate the features of a traditional manual valve and a ball crane, guaranteeing a swift and seamless flow overlap. While you can remove data at the input and output of most models, you can only do so on one side of individual Nipple models.

The automatic valve ASV-M

Automatic ASV-M can be used as shut-off valves and, if necessary, to connect the pulse tube from ASV-P (V). Its price enables us to discuss the ideal ratio of price and quality. ASV-I. It lets you set a maximum limit on how much movable coolant can be used. Special plugs designed for measuring nipples are installed in the valve. You can gauge how much coolant is flowing through a particular area of the system by installing the nipples.

Valves from the ASV series are quite likely. They enable you to keep the supply and reverse pipelines’ pressure differentials constant. ASV-P has a fixed setting of 10 kPa and is installed on the reverse pipeline. ASV-PV and ASV-PV Plus have measured settings of 5–25 and 20–40 kPa, respectively.

The principle of action of the balancing valve

We will now determine the general balance of heating devices. For instance, if multiple heating batteries are connected simultaneously to the highway’s dead end line, then each battery will require a supply of the appropriate volume of preheated working fluid. Preliminary calculations are performed to find the coolant volume that is needed.

Regarding each individual consumer, the heat carrier consumption will be constant if radiators lack valves. A manual balancer can be used to control the water supply within the system; however, it needs to be installed on a "return" where the pipe is connected to a shared network.

The valve is then adjusted to the necessary number of revolutions to change the hole’s diameter. By doing this, the working fluid in the branch will flow at its nominal rate. However, what would happen if the network’s coolant flow rate were to permanently change? The best course of action in this situation is to use a balancing valve, which forms obstacles in the path of moving fluid to regulate the room’s temperature. The water supply volume will drop as this device operates.

Vital details! Four or five heating devices can operate effectively if a manual balancer is used.

However, if there are more users, the thermal energy received by each radiator will be uneven. Furthermore, if the first battery experiences an increase in fluid flow, the quantity on the second battery will also experience an increase; however, the valve will not close, allowing the excess coolant to flow on. Thus, in order for the remaining radiators to receive the working fluid, some will overheat. The balancing valves mentioned in the article are necessary in order to control how the heating system operates.

The principle of action is simple and goes something like this: the thermostat, which is equipped with one or more batteries, will lower the amount of water used if you install the valve on the working fluid’s maximum flow rate. Gradually, the pressure will start to rise. The capillary pipe will eventually alert the device to rising pressure, at which point it will appropriately modify the working fluid’s flow rate. The consumption and pressure of the fluid in the network will be balanced because thermostats on other radiators won’t have enough time to completely block the coolant.

Video – Balancing valve CIM 777

What else is the balancing valve are used

In addition to adjusting the heating system’s risers and branches, the balancing valve is also applicable in the following situations:

  1. Often such a valve is arranged in the circulation circuit of a solid fuel boiler, in the case when it is closed on a buffer capacity. Set a valve to avoid the device of the mixing unit. Balancing valve maintains fluid temperatures in the circuit from 60 ° C and above. The valve installed on the supply of the system increases the flow rate in the boiler circuit, which should be more than in the heating.
  2. Using a balancing valve, you can adjust the fluid supply to the coil coil. The correct solution would be to limit the amount of liquid to heating the indirect heating boiler.

It is advised to install balancing valves on all system branches, including DOS and the warm floor’s contours, to enhance the heating system’s quality. The system’s quality will increase, and heating expenses will go down as well.

The essential component of the heating system is the balancing valve. However, it is not suitable for all situations; it is not advisable to install this device on branches that are currently adjusted using washers. However, use the appropriate balancing valve when adding more heating devices to the system during new construction or reconstruction.

Read also:

  • Installation of an expansion tank in the heating system of open and closed type
  • Heating heat meters
  • Expressive tank for heating closed type

Why use a balancing valve

A balanced heating system is necessary. Consequently, the computed value is determined by the coolant flow rate in each branch of the circuit. This is required to ensure that every heating battery receives the proper quantity of heat. The flow rate of the coolant in each section should be calculated in advance before the heating system is set up.

In straightforward schemes, the necessary consumption is carried out through carefully chosen pipe diameters. But using a balancing valve is a more contemporary method of adjusting both simple and complex systems.

A balancing valve resembles a typical hand valve in shape. It aids in the quantitative modification of the coolant. The case contains two fittings. They are employed in:

  • Devices of the capillary tube, as well as its operation by other controls;
  • Pressure measurement before and after adjusting the mechanism.

Every valve has an instruction sheet with a schedule for counting the handle revolutions attached. Thus, a specific amount of water consumption is guaranteed.

Devices from the same brand can be used to measure equipment made by well-known manufacturers. Danfoss balancing valve, for instance. As a result, the measurement procedure will be considerably simplified because the amount of coolant will be determined right away and no further computations need to be done. However, the cost of such equipment is high.

How to configure the balance of the radiator network

Each valve has an instruction sheet that includes information on how to determine how many handle turns to purchase.

You can modify the energy consumption for an extended period of time and save money on heating by using the attached scheme.

The instructions state that you must turn the valve to a specific level.

The valve can be adjusted in two different ways.

Method 1

Experts with experience know how to modify the system in an easy and reliable way.

They split the valve revolution by the total number of radiators that are positioned all the way around the room. They are able to precisely ascertain the appropriate step for modifying consumption thanks to this method. The idea is to close every crane in the opposite order, starting with the last and working your way back to the first radiator.

Take a look at the system’s following features for a more understandable illustration.

Five batteries in the dead end system have manual sample valves installed. They have a 4.5 turn adjustable spindle. Divide the total number of radiators (4.5) by 5. A turnover step of 0.9 is the outcome.

Accordingly, the following valves ought to open for the subsequent number of revolutions:

The first balancing valve at 0.9 revolutions.
The second balancing valve 1.8 revolutions.
The third balancing valve 2.7 revolutions.
Fourth 3.6 revolutions.

Method 2

There is an additional adjustment that works very well. It is completed more quickly and offers the option to account for the unique qualities of every radiator. However, a specialized thermometer of the contact type will be needed to perform such settings.

The following order is followed by the entire process:

  1. Open all the valves without exception and let the system gain working temperature 80 degrees.
  2. Measure the temperature of all batteries using a thermometer.
  3. Eliminate the difference by closing the first and medium cranes. The latest mechanisms do not need to be adjusted. As a rule, the first valve turns on a maximum of 1.5 turns, and the medium – by 2.5.
  4. Not to carry out any adjustments within 20 minutes. After adaptation of the system, measure measurements again.

Eliminating the temperature differential that causes all of the batteries in the room to be heated is the primary goal of both this and the preceding method.

In your home"s heating system, a balancing valve plays a crucial role in ensuring that every room receives the right amount of warmth, improving comfort and energy efficiency. This valve works by regulating the flow of hot water through different sections of your heating system, balancing it out so no area gets too hot or too cold. Installing a balancing valve involves careful positioning within the system, typically near radiators or in piping loops. By adjusting the valve settings, you can fine-tune the heat distribution, preventing issues like uneven heating or high energy bills. Overall, a balancing valve is essential for maintaining a cozy and cost-effective environment in your home during the colder months.

Design and principle of operation

The balancing reinforcement works on the principle of reducing the cross section of the passage channel by obstructing the fluid flow with a retractable valve or rod. In addition to having distinct designs and connecting technologies, devices in the heating system can also:

  1. Support the pressure difference at the same level.
  2. Limit the flow rate of the coolant.
  3. Overlap the pipeline highway.
  4. Perform the function of drainage fluid.

Ordinary valves and structurally balancing valves are similar. Their constituent parts are:

  1. A brass housing with two passing pipes with an internal or external section of the thread, designed to connect to the line with standard pipes diameters. Connection in the pipeline line in the absence of a threaded fitting with a movable threaded nut (American) is made through its analogues – additional with different university nuts.
  2. A shut -off mechanism, the movement of which is regulated.

Rice. 4 manual balancing valve, Danfoss Leno MSV-B

  1. Adjusting handle with a scale and indicators of settings, which allows you to adjust the flow inside the device.
  2. Modern models are equipped with additional elements in the form of two measuring fittings, with which measurements of the volume of feed (throughput) are measured at the entrance and output of the device.
  3. Some models are equipped with a locking ball mechanism that allows you to completely overlap the flow, or have a function of draining the liquid from the water supply.
  4. High -tech modern species can be controlled automatically, for this, instead of a rotary head, a servo drive is installed, which when the electricity is supplied, the locking mechanism pushes, while the degree of overlap of the channel depends on the size of the voltage.

Dunfos AB-QM-designed five automatic balancers for rice

Balancing crane in the heating system

The appropriate number of balancing valves is set based on the number of heating system contours. The type of heating system will also determine how the valves are used for balancing.

Balancing valve in a private house

Some users think that large rooms are the only places where balancing should be done. However, a private home’s heating system may have a fairly intricate design with multiple contours, each of which requires upholding a specific mode of operation. Each supply pipeline has a balancing valve installed in order to accomplish this.

Balancing valve in a multi -storey building or structure

Balance valves, either automatic or manual, are used in this situation. Their installation aims to keep the coolant flowing at a steady pace.

It should be mentioned that a balancing crane is always utilized in the construction of contemporary multi-story buildings. There are more balancing valves installed in rooms that are warmer. Any heating system with a balancing crane can save anywhere from one to forty percent of the total heat.


With a few minor exceptions, the installation is done in compliance with the guidelines for pipeline system installation.

  • You need to pay attention to Direction of the flow of the working environment. It is always indicated on the case.
  • It is impossible to allow dirt valve inside the valve and extraneous objects.
  • So that there is no turbulence in pipes in the system It is necessary to ensure the presence of direct pipe sections. The distance to the balancing valve should be equal to five pipe diameters. After the valve of the straight pipe, there should be two of its diameters.
  • When using an automatic valve, for it The circuit should provide a special gas station. Through such a fitting, the initial filling of the contour occurs, provided that the input crane is closed.

It is important to mention that utilizing these valves can reduce heat by 25 to 40%.


The heating system’s balancing valve distributes heat transfer in an appropriate manner. That is to say, there are instances when the battery is much colder than I would like in one room and much hotter than is necessary in another. In other words, the coolant is distributed erratically. Therefore, change is necessary to remedy this circumstance.

One kind of locking reinforcement that controls hydraulic resistance is the balancing valve. This is accomplished by altering the pipe’s cross-sectional diameter in a specific location.

Recently, a balancing valve is added to the system right away when designing a heating system (for both a private home and an apartment building). But what should be done for those who own pre-made heating systems?

The following "symptoms" point to the necessity of installing this kind of shut-off reinforcement:

  • Lack of comfortable temperature even at maximum load.
  • Significant fluctuations in the temperature in the room with a constantly equal load in the heating system.
  • Difficulty in starting the system – the inability to reach the rated power.

All of this suggests that balancing valve installation and regulation are necessary. It will modify how much coolant is received by one or more system components.

Advantages of use

The balancing crane installation will assist in resolving the heating issues mentioned above.

Furthermore, it is possible to distinguish the following benefits of utilizing this equipment:

  • Reducing costs – that is, owners of private houses note that after the balancing of the system, the amount of fuel consumed is reduced.
  • Increasing comfort in the room – you can achieve for each individual room of that level of temperature, which will be more suitable.
  • Lack of difficulties in starting – the use of balancing reinforcement will make it possible to simplify the launch of the system.


The addition of apparatus to the system

The most common application for heating balancing taps is adjusting two-pipe heating systems.

Learn more about them in-depth here.

Utilizing specialized fittings and adapters, the element is installed. However, exercise caution because certain taps can be mounted on pipes that have a specific coolant movement direction.

These cranes have a unique arrow that indicates the direction in which the water in the pipe should flow. If you install the valve without following these instructions, trying to control the system with its assistance may cause the element to break down and the heating system as a whole to stop working.


Measurements are taken using specialized equipment after the valve is installed, enabling you to ascertain the necessary level of adjustment. Some experts describe this approach as fairly laborious.

Important: In order to assess the quality of work, you should connect the required measuring equipment and turn on the heating system before beginning the balancing procedure.

By breaking up the heating system into distinct segments and adding balancing reinforcement to each one, more precise balancing results can be achieved. Since each valve needs to be adjusted, the balancing process itself will take a long time in this situation. However, the outcomes will be superior.

What is a balancing valve for the heating system? A balancing valve helps regulate the flow of hot water through your heating system, ensuring each radiator gets the right amount of heat.
Why is it necessary? It"s necessary to maintain an even temperature throughout your home, preventing some rooms from getting too hot while others stay cold.
How to install it? Install the balancing valve near the inlet of each radiator, adjusting it until you achieve the desired heat distribution.

It’s a wise decision to install a balancing valve in your heating system to guarantee peak efficiency and performance. It helps maintain constant temperatures and reduces energy waste by controlling the hot water flow to various areas of your house. This small gadget can save you money on energy costs and significantly improve the comfort level of your living area.

The need for a balancing valve is primarily motivated by the need to address uneven heating in your house. In the event of an imbalance, certain rooms might be excessively warm while others stay cold, causing discomfort and possibly wasting energy. You can control how much hot water flows to each radiator or heating zone by installing a balancing valve, which will guarantee that heat is distributed effectively and uniformly.

Although it doesn’t take a lot of skill to install a balancing valve, it does require careful planning and attention to detail. To find the best places to install the valves, start by evaluating your heating system. They are usually installed on the supply or return pipes that go to every heating zone or radiator. Before installing the valves, turn off the water supply to the system and remove any extra water after you’ve determined the placement.

Make careful to closely adhere to the manufacturer’s instructions when installing the balancing valves. This could entail threading or soldering the valves into place after making incisions in the existing pipework. To stop leaks, be sure that all connections are tight and properly aligned. Once installed, you can modify the hot water flow to each radiator or zone using the valves to get the right balance and comfort levels throughout your house.

To sum up, adding a balancing valve to your heating system is a sensible and efficient approach to raise comfort levels, reduce energy use, and save money. It guarantees uniform heating throughout your house, cutting down on energy waste and utility costs, by controlling the flow of hot water. A balancing valve can significantly improve the efficiency of your heating system and give you a warm and comfortable living space all year long with the right installation and adjustment.

Video on the topic

Balancing valves – webinar 12.08.21

Dismantling automatic balancing valves of the ASV series

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