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

The BERMAD Model IR-420-54-3Q-KX is an operated, diaphragm actuated control valve that accurately reduces higher upstream pressure to lower 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-b also serves as a Pressure Relief Valve protecting the system even when in closed position.

  • Normally Closed PRV with Relief Override Feature

-Protects downstream and upstream systems

-Closes upon control failure

-Amplifies and relays weak remote command

  • 3-Way Pilot Controlled

-Dynamic integrated needle valve

  • 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 Subject to Varying Supply Pressure
  • Energy Saving Irrigation Systems
  • Remote and/or Elevated Plots
  • Multiple Control Valves Systems


[1] Bermad Model IR-420-54-3Q-KX opens upon pressure rise
command, 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-KX Product Page
English IR Engineering 400
English Ordering Guid 400 Series
English Spare Parts - Irrigation