Pressure Reducing Valve IR-420-55-3Q-bK

The BERMAD Model IR-420-55-3Q-bK is a hydraulically operated, diaphragm actuated control valve that accurately reduces higher upstream pressure to very low and stable preset downstream pressure. It either opens or shuts in response to an electric signal. The Bermad IR-420-55-3Q-bK also serves as a Pressure Relief Valve, protecting the system even when in closed position.

  • Solenoid Controlled PRV with Relief Override Feature

-Protects downstream system

-Relieves pressure peaks

-Electrically controlled On/Off

  • Pressure Reducing Servo Pilot Controlled

-Progressive needle valve

-Settable to 0.5 bar; 7 psi

-Very low hysteresis

  • 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-Line Inspection and Service.

Typical Applications

  • Computerized Irrigation Systems
  • Drip-Tape Systems
  • Low Set Pressure Applications
  • Remote and/or Elevated Plots
  • Multiple Control Valve Systems
  • Low Supplied Pressure Irrigation Systems



[1] Bermad Model IR-420-55-3Q-bK opens in response to
electric signal, establishes reduced pressure zone, and
relieves supply pressure peaks even when in closed position.
[2] BERMAD Air Valve Model ARA-A-P-P
[3] BERMAD Vacuum Breaker Model ½”-ARV

English IR 420-55-3Q-bK Product Page
English IR Engineering 400
English Ordering Guid 400 Series
English Spare Parts - Irrigation