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IR-430-55

Pressure Relief/Sustaining Valve

The BERMAD Model IR-430-55 is a hydraulically operated, diaphragm actuated control valve that can fulfill either of two separate functions. When installed in-line, it sustains minimum preset upstream (back) pressure. When installed as a relief or circulation valve, it relieves line pressure in excess of preset. The BERMAD Model IR-430-55 either opens or shuts in response to an electric signal.
 

Features and Benefits

  • Line Pressure Driven PSV Electrically Controlled On/Off
    • Controls system fill-up
    • Relieves excessive pressure protecting pump and system
    • Switches between pressure regimes
    • Wide range of pressures and voltages
  • Advanced Globe Hydro-Efficient Design
    • Unobstructed flow path
    • Single moving part
    • High flow capacity
  • Fully Supported & Balanced Diaphragm
    • Requires low actuation pressure
    • Excellent low flow regulation performance
    • Progressively restrains valve closing
    • Prevents diaphragm distortion
  • Simple In-Iine Inspection and Service
     

Typical Applications

  • Downhill Supply Lines Emptying Prevention
  • Systems with Various Pressure Regimes
  • Line Fill-Up Control
  • Backup for Reservoir Supply Valves
  • Pump Overload and Cavitation Protection
  • Pump Minimum Flow Safeguard
  • Excessive Line Pressure Protection