The Model 743 Booster Pump Control & Pressure Sustaining Valve is a hydraulically-operated, diaphragm-actuated, active check valve that opens or shuts off in response to electric signals. It isolates the pump from the system during pump starting and stopping, to prevent pipeline surges. While open, it sustains minimum discharge pressure regardless of fluctuating flow. Model 743 isolates systems from the effects of pump starts and stops for:

  • Solitary single speed pumps
  • Battery of single speed pumps (add & switch)
  • Battery of variable speed pumps (add)
  • Pump overload and cavitation protection
  • Controlled pipeline fill-up
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