Pressure Reducing Valve IR-120-55-3Q-b

The BERMAD Model IR-120-55-3Q-b 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-120-55-3Q-b also serves as a Pressure Relief Valve, protecting the system even when in closed position.

  • Solenoid Controlled PRV with Relief Override Feature

-Protects downstream systems

-Relieves supply pressure peaks

  • Pressure Reducing Servo Pilot Controlled

-Dynamic integrated needle valve

-Settable to 0.5 bar; 7 psi

-Very low hysteresis

  • Engineered Plastic Valve with Industrial Grade Design

-Highly durable, chemical and cavitation resistant

-No internal bolts and nuts

  • hYflow ‘Y’ Valve Body with “Look Through” Design

-Ultra-high flow capacity – Low pressure loss

  • Unitized Flexible Super Travel (FST) Diaphragm and Guided Plug

-Accurate and stable regulation with smooth closing

-Requires low opening and actuation pressure

-Prevents diaphragm erosion and distortion

Typical Applications

  • Computerized Irrigation Systems
  • Drip-Tape Systems
  • Low Set Pressure Applications
  • Remote and/or Elevated Plots
  • Multiple Control Valves System
  • Energy Saving Irrigation Systems


[1] Bermad Model IR-120-55-3Q-b 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 120-55-3Q-b Product Page
English IR Engineering 100
English Ordering Guide 100
English Spare Parts - Irrigation