The purpose of a Vacuum Priming Valve is to automatically allow air to be drawn out of the pumping system until the pump fills with water.
Then, when the water reaches the priming valve, the float rises and closes the priming valve to prevent fluid from flowing to the vacuum priming system.
The priming valve will continue to release air while the pump is running.
Features
Specifically designed to prevent fluid leakage
Flow sensitive float
Stainless steel 316 internal trim and float
Available with optional water level control switch