Sometimes air enters the heating system. This often occurs during long periods of inactivity (for example, in the summer). As a result, the radiators are airborne and remain cold or slightly warm. In order for the system to work in full force, it is necessary to bleed the air out of it, and it is most convenient to do this using a special device called the Mayevsky automatic crane.
In the days of the Soviet Union, the first, non-automatic model of the Mayevsky crane was developed. In order to use such an air vent, a special key was required. Today in any sanitary ware shop you can buy an automatic air vent for the radiator . They are inexpensive, but noticeably make life easier for users of the central heating system.
How does the automatic air vent of Majewski work?
Although automatic air outlets in the heating system are of different modifications, they all operate in the same way. Any faucet is a conical stem, which in the screwed state completely closes the through hole, and when opened, bleeds air through a special valve. The principle of operation of the Mayevsky automatic crane does not require any key, since air is discharged by itself, without human intervention. This is called the "float principle" and occurs when a certain level of air is reached. It's enough just to install this device on the radiator, and all its further work on battery de-icing will be automatic and only when necessary, which is very convenient.
Installing an automatic radiator air vent
Air congestion is most often formed in single-pipe heat supply systems, which are installed in most multi-storey buildings. It is in them that it is most expedient to install the automatic valves of Majewski.
In the installation of the crane there are no difficulties, this can be done without recourse to specialists. Simply unscrew the side cover of the battery in the place where you plan to install the automatic Mayevsky crane, and screw the purchased device into its place.
In the future, if you have problems in the work of the heating system, you can let down the air and manually. To do this, insert a flat screwdriver into the thread and slowly turn it counterclockwise. When you hear the hiss of the air coming out of the valve, wait until the cork and the first drops of water are fully exhausted. After this, quickly turn the tap in the opposite direction.