Air Release valve

Why is it needed ?

The inclusion of Air Release Valves is critical for the safe movement of water through pipes.   When water moves through any pipework, air is released from suspension and this air will cause pockets in the pipework, thus, reducing the overall performance of the system.   Air is also released from suspension when water moves through fittings, the filters and, through the pump.   This released air must be expelled from pipework through an air release valve.

How does it work ?  

Presence of air / Absence of air (Vacuum point)  in pipework both can be dangerous as air can be compressed while water cannot.   Air in the pipes that becomes compressed can build up pressure and cause "water hammer" or may even cause the pipes to break and split.  An air release valve will remove all of the trapped air when the valve is installed at the high-points on the pipework.   

Air release valve -cum- Vacuum breakers allow air to enter the pipework as soon as the pressure inside the pipework is less than zero kPa during reverse flow / transient flow thus breaking the vacuum formation. 

You should install an air release valve immediately after the pump, on top of the filters, at every high-point on the main pipes and at each field valve.

AUTOMAT - Harit Air -cum- Vacuum release valve is made of engineering plastic for high pressure operation and durability. These safety valves help in avoiding possible damages to pipes and accessories due to presence or absence of air. 

Expulsion - When the pipe is being filled with air, the Kinetic air release valve keeps continuously expelling all the surplus air outside and when the pipe is full of water, the air release valve closes tightly. 

Admission - When vacuum is formed during reverse flow or transient flow AUTOMAT - Harit Air -cum- Vacuum release valve helps break vacuum by continuously inducing air into the pipe. 

Durable, Weather Resistant and Non-corrosive. 

Available sizes -

•  HT-88P - 1” BSPT Male Thread Connection

•  HT-87P - 3/4" (25mm) BSPT Male Thread Connection

•  HT-89P1.5" BSPT Male Thread Connection 

•  HT-90P - 2” BSPT Male Thread Connection