Pressure relief and pressure holding safety valve

The pressure relief / holding valve is composed of hydraulic control valve main valve and pressure relief pilot valve. The opening and closing of the pilot valve controls the opening and closing of the main valve, which is a commonly used pressure control valve; the valve is suitable for pressure relief of water supply pipe network or building water supply system, so that the system pressure is not higher than the set pressure value of the valve, so as to ensure the system pipeline safety or maintain the minimum water supply pressure of the pipeline in front of the valve.

Product features:

Hydraulic control, without external driving force;

The main valve has only one moving part, so the failure rate is low;

Diaphragm structure, no friction, high control sensitivity;

The relief pressure of the valve is adjustable;

Once the pressure of the pipeline system is less than the relief pressure, it can be quickly closed and zero leakage can be realized.