Diaphragm relief valve 100QR

Description The valve opens instantly when the pressure in the pipeline exceeds the safe level, thus relieving excessive pressure from the network. When the pressure returns to normal, the valve closes slowly, at an adjustable pace. Features • No slam operation • Simple and reliable design • Easy installation and maintenance • Low Resistance and high flow capacity • Protection for sewage as well as clean water pumping systems Purchase Specifications The valve will be hydraulic, direct sealing diaphragm type, which allows inline maintenance. No stem, shaft or guide bearing will be located within the water passage. The valve will be activated by the line pressure or by an external hydraulic or pneumatic pressure. The valve will be operated by a pressure relief pilot valve for fast opening at a high pressure set-point. The valve and the controls will be a Dorot Series 100 valve or similar in all aspects.