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.

RAVANDS AIR RELEASE VALVE

1.True bore design. More efficient.

ReleaSpecially blended materials for better strength and long service life.

The Ravands Air release valve is made of high strength and corrosive resistant composite materials. union design is adopted for easy maintenance.

Available sizes

RAV-AV-10 - 1" (32mm) - Male Thread