Bermad Pressure Relief/Sustaining Valves

Bermad Pressure Relief-Sustaining Valve IR-430

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

pdf  Bermad IR-430 Pressure Relief Valve

 

Bermad Quick Pressure Relief Valve IR-43Q-R

 

The BERMAD Model IR-43Q-R Quick Pressure Relief Valve is a hydraulically operated, diaphragm actuated control valve that relieves excessive line pressure when it rises above the preset maximum. It responds to a rise in system pressure immediately, accurately and with high repeatability, by opening fully. The BERMAD Model IR-43Q-R provides smooth drip tight closing.

 

Features and Benefits:

  • Hydraulic Pressure Control
    • Line pressure driven
    • Long term drip tight sealing
    • Long term setting stability
    • Wide setting range
    • Tight setting window with minimal hysteresis
  • Advanced Globe Hydro-Efficient Design
    • Unobstructed flow path
    • Single moving part
    • High flow capacity
  • Fully Supported & Balanced Diaphragm
    • Requires low opening and actuation pressure
    • Progressively restrains valve closing
    • Prevents diaphragm distortion
    • Excellent low-flow regulation performance
  • User-Friendly Design
    • Easy pressure setting
    • Simple in-line inspection and service

 

Typical Applications:

  • System Burst Protection
  • Momentary Pressure Peak Elimination
  • System Failure Visual Indication
  • Filter Burst Protection

 

pdf  Bermad IR-43Q-R Quick Pressure Relief Valve

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