MODEL 118-4

MODEL 118-4

SURGE ANTICIPATION VALVE

The Model 118-4 operates as a pressure relief valve by opening at a pressure above its set point. In addition, it provides extra protection against surges associated with power failure or other pump failure by opening in “anticipation” of the high pressure wave to follow. By being already open when the high pressure wave hits, any potential surge is harmlessly bypassed to atmosphere.

Applications include:

  • Pumping systems (RAFF Ponds, PLS Ponds, Seepage, Boosters, etc.)
  • Treatment plants (AWTP, EWTP, etc) 
  • Dewatering applications / Underground mining
  • Recovery water applications

FEATURES

  • Hydraulic, pilot-operated, high pressure relief opening
  • Opens on high pressure – Closes slowly when pressure returns to normal
  • Operates over a wide flow range
  • Quick opening and adjustable closing speed
  • Can be maintained without removal from the line
  • Factory tested and can be pre-set to your requirements
  • Low and high pressures are adjustable

Testimonials