The Pressure Relief Holding Water Control Valve

Holding pressure valve is mainly used for fire or other water supply systems relief, in order to prevent over pressure or maintenance of fire water supply system pressure.
Fire pump can also features closed, so that a larger proportion of larger diameter, suspended particles will not enter the control system, to ensure that the system of circulating SMOOTH OPERATOR, safe and reliable operation of the valve. The system movement is stable, high strength, long service life.