Security group for heating for a private house. Composition and principle of work

The safety group for heating is a mechanism that consists of a whole set of appliances. Thanks to their well-coordinated work, the system's trouble-free operation is ensured, as well as a complete control of the pressure in the coolant.

What parts does the heating system consist of?

When an emergency situation occurs in the private house or an expansion tank fails, the pressure in the heating system increases dramatically. This can lead to an explosion in the pipe, as well as damage to the heat exchanger of the heating tank. Of course, every person cares about heating a private house. The safety team, in the event of a breakdown, will compensate for the excess pressure, as well as prevent the system from airborne. It works in automatic mode and tries to quickly release excess pressure.

The security group includes a metal casing that has a threaded connection. There is installed a pressure gauge, safety valve, and also an air vent.

1. The pressure gauge is a measuring device that provides visual control over the resulting pressure, as well as the temperature regime in the heating system.
2. Air vent. It works in automatic mode and resets excess air in the system.
3. Safety valve. It is designed to remove excess liquid that is in a closed system. Sometimes, when the heating medium is heated, the excess pressure can expand and build up.

Principle of operation

If there are certain situations, and the expansion tank was unable to compensate for the expansion of the heat carrier in time, then the safety valve mechanism will work. The safety group for heating will open the way to release an excess coolant. Unnecessary air can escape through the air vent.

To prevent a person from getting burned during the sudden opening of the non-return valve and the release of excess coolant, a branch pipe must be connected. It must be directed to the sewage system. Many people believe that when the safety valve is activated, little liquid remains in the system. But this opinion is erroneous, because in most cases in order to normalize the pressure, the system drops no more than 120 grams of coolant.

How to install a security group correctly

Today, wall-mounted boilers for heating a private house are in great demand . In most cases, they already have a safety group for the heating system. In a floor boiler, especially if it is from a domestic manufacturer, there is no such unique device. That's why customers will have to think about the additional installation of the system for the boiler. In order for it to work correctly and correctly, the installation process must be trusted only by qualified specialists. Only they can set all the parameters and settings. If you make mistakes or oversights during the installation and connection, the safety group for heating will not operate correctly.

In most cases, the installation is performed to the boiler on the supply line. The optimal distance is about 1.5 meters, because it is in this position that the pressure gauge can perform pressure monitoring in the system.

Common instructions for installing a security group

Each manufacturer that produces such equipment, prescribes all installation rules in the instructions. But there are generally accepted regulatory documents, where all the installation rules are clearly laid out.

• Safety valves, which are located in the heating system, must be installed on the supply pipe. They are mounted immediately near the boiler. A certain level of power is taken into account to cut and duplicate these devices.
• In a system where there is hot water, the valves must be installed at the outlet. In most cases this is the upper point on the boiler.
• Between the valves and the main pipes there should not be any devices.

The safety group for heating in the system plays an important role during the operation of the boiler. To ensure complete safety, you need to take care of the correct installation of this system.