Pressure Sustaining and Relief Valve is a hydraulically driven automatic control valve,mainly has the following two functions: When used for pressure holding,regardless of fluctuations and changes in flow rate and downstream pressure, this valve can maintain the preset minimum upstream pressure (back pressure) when opened. When used for pressure relief, the valve can discharge excess system pressure that exceeds the preset maximum value. Mainly used for building water supply, fire water, industrial water and other occasions.
1. This product has precise pressure holding and pressure relief, quick response, stable performance, safe and reliable.
2. Unique flow channel design, in line with the principle of fluid dynamics, low flow resistance.
3. Valve cover exhaust valve design, effectively eliminate the upper cover of the air, to reduce the medium flow sound, increase stability.
4. Equipped with steady flow needle valve, quick opening and closing, low water noise and vibration.
