High - Efficiency Automatic Air Release Valve for Water Supply and Fire Protection Pipelines

High - Efficiency Automatic Air Release Valve for Water Supply and Fire Protection Pipelines

An air release valve is a kind of air inlet and exhaust device, typically used in water or irrigation schemes to ensure that any entrained air in the water system is automatically released in order to maximize the system performance. Entrained 

air pockets in pipes can cause excessive head loss and flow reductions if air is not effectively released.

It is also known as an air relief valve.

Operating Principle：

• Float - operated Type：When air accumulates in the upper part of the air valve chamber during pipeline operation, the float gravitates downwards, opening the automatic orifice to release the air. Once the air is discharged, the water level rises, and the float closes the orifice.

Construction

Description

• Small orifice release air under pressure operation.

• The float is connected to the vent via a linkage mechanism.

• Range from 1/2" up to 1 1/2".

• Connection Standard: NPT, BSPT.

• Working Pressure Rating: PN16, 200/250psi.

• Working Temperature: -10 ℃ - 120 ℃.

Installation Location

  Air release valves are typically installed at high points in pipelines and at regular intervals along uniform grade line       pipes, usually about every 1/2 mile. They should be mounted in the vertical position on top of the pipeline.

Function

Air release valves play a crucial role in maintaining the efficiency and safety of pipeline systems by preventing air accumulation and potential water hammer. Excess air in the pipeline can reduce flow capacity, increase power consumption, and even cause pipeline rupture.

Suitabilities

          Water             Fire Fighting