What Is an Air Release Valve?

Exhaust valves are used for exhausting pipes such as independent heating systems, central heating systems, heating boilers, central air conditioners, floor heating and solar heating systems.

Exhaust valve heating

Floor heating (geothermic) is a set of systems. There are strict technical requirements for the fixed installation of floor heating coils to the water separator and the connection of automatic exhaust valve pipe fittings. When heating in winter, users who need to turn on the floor heating first need to exhaust, then Need to use the exhaust valve. Heating exhaust valve A valve installed at the highest point of the system to release air pockets in heating systems and water supply pipes.

Exhaust valve trace type

Under normal circumstances, the water contains about 2VOL% of dissolved air. During the water transfer process, this air is continuously released from the water and collects at the high point of the pipeline, forming an air bag (AIR POCKET), which makes water transfer difficult. Therefore, the system's water delivery capacity can be reduced by about 5-15%. The main function of this micro exhaust valve is to exclude the 2VOL% of dissolved air, and it is suitable for installation in high-rise buildings, piping in the factory area, and small pumping stations to protect or improve the system's water delivery efficiency and save energy.

Single lever type (AETV SIMPLE LEVER TYPE) micro exhaust valve, similar to an oval valve body, all internal components including floats, levers, bars, valve seats, etc. are all 304S.S stainless steel, with standard exhaust aperture inside 1/16 ", suitable for working pressure environment up to PN25.

Main specifications:

Nominal diameter: DN15-DN25

Nominal pressure: PN10 PN16 PN25

Exhaust valve quick type

Exhaust valve <Large caliber exhaust valve> is used for exhausting pipes such as independent heating systems, central heating systems, heating boilers, central air-conditioning, floor heating and solar heating systems. Because water usually has a certain amount of air dissolved in it, and the solubility of air decreases with increasing temperature, the gas gradually separates from the water in the process of circulation, and gradually gathers together to form large bubbles or even air columns. Because there is water supplement, gas is often generated. For this reason, the term exhaust valve has been extended, and many problems have been solved in daily life.

Exhaust valve composite

The composite exhaust valve is a barrel-shaped valve body, which mainly contains a group of stainless steel balls (STAINLESS STEEL BALL), stem (FLOAT ARM) and plug (POPPET). The valve is installed at the pump water outlet or in the water distribution pipeline, which is used to largely exclude the air accumulated in the pipe, or the trace air collected in the higher part of the pipeline is discharged to the atmosphere, in order to improve the efficiency of the pipeline and the pump, and When there is negative pressure in the pipe, this valve quickly sucks in the outside air to protect the pipeline from damage caused by negative pressure.

The principle of the sewage composite exhaust valve is the same as that of the clean water composite exhaust valve, except that the structure is slightly modified, that is, the valve body is lengthened, and the lever mechanism is slightly modified, so that dirt only accumulates in the lower part of the valve body, and does not affect the exhaust. Leaking.

Main specifications:

Pressure rating: PN10

Nominal diameter: DN50-200mm ^[2]