Bermad IR-420-XZ Pressure Reducing Valve



Pressure Reducing Valve IR-420-XZ

The Bermad Model IR-420-XZ Pressure Reducing Valve is a hydraulically operated, diaphragm actuated control valve. This valve reduces higher upstream pressure to lower constant downstream pressure—regardless of fluctuating demand—and opens fully upon line pressure drop.


  • Pressure Reducing Stations
  • Flow and Leakage Reduction
  • Systems Subject to Varying Supply Pressure
  • Energy Saving Irrigation Systems
  • Downhill Supply Lines
  • Pressure Zoning
  • System Maintenance Savings


  • 3-Way Hydraulically Actuated Pressure Reducing Valve
    • Protects downstream systems
    • Opens fully upon line pressure drop
  • 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
  • User Friendly Design
    • Easy pressure setting
    • Simple in-line inspection and service
    • Easy addition of control features



The Pressure Reducing Pilot senses Downstream Pressure. It diverts line pressure into the Control Chamber should rise above setting. Pressure then accumulates in the control chamber causing the Valve to throttle closed, decreasing to pilot setting. The pilot releases accumulated pressure to the atmosphere when falls below setting, thereby causing the Valve to open. Should line pressure remain below setting - the Valve opens fully. The Manual Selector enables local manual closing.


Pressure Reducing Valve IR-420-XZ Pressure Reducing Valve IR-420-XZ Brochure