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FP 436

Differential Pressure Sustaining Valve

The Model FP 436 Differential Pressure Sustaining Valve is a hydraulically operated, diaphragm actuated, control valve that sustains minimum pre-set, differential pressure between two points regardless of fluctuating flow or varying upstream pressure.
 

Features and Benefits

  • Hydraulically powered valve design
    • Closes drip tight time after time
    • Eliminates jamming problems
  • Hydro-efficient body design
    • Wide rangeability
    • Unrestricted flow path
  • One-piece molded single moving part – No maintenance required
  • Simple design – Cost effective
  • Factory pre-assembled trim – Out-of-box quality
  • In-line serviceable – Minimal down time
     

Typical Applications

  • Pump overload & cavitation protection
  • Safeguarding pump minimum flow
  • Emergency filter by-pass
  • Foam recirculation; maintains required foam pressure
  • Balancing between circuits in systems
     

Operation

The Model FP 436 Differential Pressure Sustaining Valve is a hydraulically operated, diaphragm actuated, control valve that sustains minimum pre-set, differential pressure between two points such as pump suction and discharge, filter upstream and downstream, etc.