Special cranes for heating - variations and operation

11-04-2018
Water supply

If in the old systems of central heating the valve on the radiator could be found only for the aeration, then today this device is considered an integral element. The crane for the heating battery is a ball-type stop valve.

With the help of the device, not only is the connection of pipes with radiators, but also control over the flow of coolant. After installation, the valves must be in a closed or open state, otherwise their operation will be impaired.

Three-way valve for heating with thermostat for heating system

Below we will find out which taps are better to put on the heating and why. You will learn why exactly they are needed, where and how they are mounted.

General information

Application Products are required for:
  1. Temperature adjustments.
  2. Removing accumulated air from the system, otherwise it will interfere with the normal circulation of the coolant, and reduce the level of heat in the room.
  3. Discharge of water from the heating circuit.
  4. Complete disconnection of heating devices from the system during repairs.
Installation Consider common situations:
  1. On the bypass - thus you can switch the system from forced to natural circulation.
  2. On the riser in an apartment building - this allows you to turn off only a certain area, and not the entire heating system during repair work.
  3. At the top of the radiator on one side.
  4. In places where air accumulation is possible for its removal from the circuit.
Material When choosing a device, it should be remembered that it will constantly come into contact with the liquid, so the design must be corrosion resistant. Best of all proved - the brass covered with a protective metal dusting, and high-quality polypropylene. Products made of brass are connected to plastic or metal pipes with threaded fittings, and polypropylene pipes are connected by soldering.
We install the adjusting valve for heating

Tip: carefully select the taps, so as not to purchase a fake that looks like brass.

Often, instead of it, they offer a silumin alloy that gives in to corrosion and quickly rotting, but its price is 2-3 times lower. Remember, quality sanitary products can not be cheap.

Balancing valves for brass heating systems

Types of devices

Below are the main options for valves for the heating system:

  1. Adjusting:
    • can be angular and straight;
    • used to control the flow of water with their own hands;
    • protect from leakage;
    • the main advantage of the devices is that there is no water hammer during the filling of the system;
    • provide an opportunity to remove the radiator without turning off the entire system;
    • high tightness of products;
    • good hydrodynamic characteristics;
    • esthetic appearance of caps;
    • usually used in autonomous heating.

    Disadvantages - it is impossible to accurately adjust the heat transfer due to the lack of a temperature scale.

    The technological principle of the three-way valve in the heating system
    1. With thermal head, which is equipped with:
      • ring, blocking and limiting the temperature increase;
      • sensitive element inside (tank with gas or liquid), which reduces or increases the flow of coolant during thermal oscillations.

      There are two types of thermal heads:

      • with manual adjustment;
      • with automatic, installed bellows with liquid, when heated, which changes its volume, which creates pressure on the rod.

      Tip: install on one- and two-pipe plastic or metal systems.

      Two-way ball valves in the heating system

      Characteristics and features of the equipment

      Of the advantages of the equipment can be identified:

      • the convenience of use - you can independently adjust the temperature;
      • cost savings - the valve with thermal head allows to reduce fuel consumption due to the limitation of temperature increase.
      • there is a mode that protects against freezing.

      The instruction requires installing a device with a thermostat in front of the radiator. Adjust the flow of water produced by a crane installed in front of the thermostat.

      Radiator mounted faucet for heating control

      In this case, use:

      1. Ball type valves - the effect of it is insignificant, since it has only two operating modes “closed” and “open”.
      2. The cone valve is better than the previous version, as it has an intermediate position, so it can not be completely closed. The disadvantage of the device - the valve must be returned to its original position and constantly monitor it.
      Automatic electric heater tap
      1. Automatic thermostat - is considered the most convenient and reliable. The disadvantage is that the bypass must be installed on the single-pipe circuits, and the equipment itself should be selected individually.

      Popular brands of devices

      1. Itap (Italy) - high quality and durable use. In heating systems apply universal ball valves. Advantages:
        • universality;
        • manufacturability;
        • corrosion resistance.
        On the photo - Itap ball valve
        1. Oventrop - the design consists of a collapsible nickel-plated case, the external thread allows to achieve a tight connection, the devices can withstand high pressure.
        2. Danfoss is compact, practical and aesthetic products, easy to use, resistant to corrosion, affordable, and installation does not cause problems.
        3. Luxor - brass material with low lead content, nickel-plated is applied over it. Advantages - devices can be installed on all types of pipes, they have high hydrodynamic characteristics, double sealing, save energy and do not freeze.

        Conclusion

        We found out today which cranes are better for heating and why they should be taken into account when self-assembling the system. With their help, it is possible not only to control the flow of coolant through the device, but also to regulate the heating of air in a single room in a manual or automatic mode.

        There are two main types of equipment - with or without a thermal head, in the first case the accuracy of temperature setting is much higher. The video in this article will provide an opportunity to find additional information on the above topic.

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