Products Description
Overview
Relief valves consists of a main valve and an external control pilot valve. It is mainly installed in the bypass of the protected water supply system of the building to ensure the pressure in the water supply area upstream of the main valve. When the pressure in the water supply pipe exceeds the set pressure of the pressure relief valve, the pressure relief valve is opened to prevent the pipeline and equipment from being damaged due to overpressure. damage. This valve is mainly used for the pressure relief of the fire test circulation system of high-rise buildings, and is an upgraded product of the spring-type safety valve.
Working Pressure: 10/16 Bar
Flange End: ANSI150LB/GB Standard /BS Standard;
Steam Material: 2CR13 /Stainless Steel;
Bonnet Material: Ductile Iron ,QT450;
Body Materia: Ductile Iron ,QT450;
Seal Material: Ductile Iron ,QT450,NBR;
Surface Finishing: Epoxy Red or Blue .
notice
A filter must be installed before the pressure relief/sustaining valve. When adjusting, the screw on the pilot valve should be withdrawn, start the water pump to let the water drain from the pressure relief valve, and gradually screw it into the adjusting screw to gradually increase the pressure until the pressure to be set is reached. Tighten the lock nut after setting
