CLA-VAL 52-03 : Surge Anticipator and Pressure Relief Valve
The CLA-VAL 52-03 is typically installed near a pump on a discharge line to atmosphere. When pumping systems are started and stopped gradually, harmful surges do not occur. However, should a power failure take place, the abrupt stopping of the pump can cause dangerous surges in the system which could result in severe equipment damage.
The CLA-VAL 52-03 anticipates the surge by opening on the low pressure wave in order to be fully open on the returning high wave diverting the excess pressure.