SURGE ANTICIPATING CONTROL VALVE -579

Product Code: 8481.10.19.00.00

DRF88 is used at the pump outlets and adjusted to eliminate hazardous pressure surges typical of water hammer conditions. A water hammer is caused by an abrupt shutoff of a pump or rapid closure of a main valve, causing a fast propagation of low pressure front, followed y an extremely high pressure back wave. A series of pressure waves, each one composed of alternating low and high pressure is created within a few seconds. these surges, depending on the working conditions and design of the system, can exceed 3 times the working pressure and are extremely hazardous.