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IR-430

Pressure Relief/Sustaining Valve

The BERMAD Model IR-430 Pressure Relief/Sustaining Valve 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 regardless of fluctuating flow or varying downstream pressure. When installed as a relief or circulation valve, it relieves line pressure in excess of preset.
 

Features and Benefits

  • Line Pressure Driven Pressure Relief/Sustaining Valve
  • Controls system fill-up

    • Sustains upstream line pressure
    • Relieves excessive pressure protecting pump and system
    • Prioritizes pressure zones
  • Advanced Globe Hydro-Efficient Design
    • Unobstructed flow path
    • Single moving part
    • High flow capacity
  • Fully Supported & Balanced Diaphragm
    • Requires low opening and actuation pressure
    • Excellent low flow regulation performance
    • Progressively restrains valve closing
    • Prevents diaphragm distortion
  • User Friendly Design
    • Easy pressure setting
    • Simple in-line inspection and service
       

Typical Applications

  • Downhill Supply Lines Emptying Prevention
  • Pressure Zone Prioritizing
  • Line Fill-Up Control
  • Pump Overload and Cavitation Protection
  • Pump Minimum Flow Safeguard
  • Excessive Line Pressure Protection