Pressure Reducing Valve IR-420-54-3Q-bK

The BERMAD Model IR-420-54-3Q-bK is a hydraulically operated, diaphragm actuated control valve that accurately reduces higher upstream pressure to very low and stable preset downstream pressure. It is a Normally Closed valve that opens in response to a remote pressure drop command and shuts in the absence of that command. The BERMAD Model IR-420-54-3Q-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 Valves 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 420-54-3Q-bK Product Page
English IR Engineering 400
English Ordering Guid 400 Series
English Spare Parts - Irrigation