Philmac Air Release Valves Model:PHILMAC 1" (25MM) POLY AIR RELEASE VALVE Flexible and easy to install

Flexible and easy to install in existing gardens

The Philmac 3G Metric Compression Pipe Fittings offer a high quality

High UV resistant

Available in full- and part-circle models with optional stainless steel riser

Air Release Valves should be fitted to the highest point in your drip system to release air pockets from the system

Philmac Air Release Valves Model:PHILMAC 1" (25MM) POLY AIR RELEASE VALVE Flexible and easy to installPhilmac 1" Poly Air Release Valve to release air from a pipe. When the pressure inside the pipe drops and water is no longer being pumped through the pipe the plunger inside the valve will drop and allow air into the pipe. This can be useful to stop pipes from collapsing where water is draining out of a sprinkler at a low point in the system and no other provision is made to allow air into the system. On start up the system needs to expel air from the