Bermad IR-430-55-KX Pressure Sustaining Valve



Bermad IR-430-55-KX Pressure Sustaining Valve

The Bermad Model IR-430-55-KX is a hydraulically operated, diaphragm actuated control valve that sustains minimum preset upstream (back) pressure and opens fully when line pressure is in excess of setting.

This valve either opens or shuts in response to an electric signal.


  • Computerized Irrigation Systems
  • Line Fill-Up Control Solutions
  • Distanced and/or Elevated Plots
  • Infield Filters Backwash Pressure Sustaining
  • Systems Subject to Varying Supply Pressure
  • Distribution Centers


  • Line Pressure Driven, Electrically Controlled On/Off
    • Prioritizes pressure zones & controls system fill-up
    • Sustains upstream line pressure
    • Opens fully upon line pressure rise
  • AdvancedGlobeHydro-EfficientDesign
    • Unobstructed flow path
    • Single moving part
    • High flow capacity
  • Fully Supported & Balanced Diaphragm
    • Requires low actuation pressure
    • Excellent low flow regulation performances
    • Progressively restrains valve closing
    • Prevents diaphragm distortion
  • User-FriendlyDesign
    • Easy pressure setting
    • Simple in-line inspection and service



The Shuttle Valve hydraulically connects the Solenoid or the Pressure Sustaining Pilot to the Valve Control Chamber. When the solenoid is closed, the PSP commands the Valve to throttle closed should Upstream Pressure drop below setting and to open fully when rises above setting. In response to an electric signal, the solenoid switches, directing line pressure through the shuttle valve into the control chamber, and thereby causing the Valve to shut. The solenoid also features local manual closing.


Bermad IR-430-55-KX Pressure Sustaining Valve Bermad IR-430-55-KX Pressure Sustaining Valve Brochure