Flow Control and Pressure Reducing Valve IR-172-50-bD

The BERMAD Model IR-172-50-bD is a hydraulically operated, diaphragm actuated control valve that performs three independent functions. It limits system demand to a preset maximum flow rate; it reduces downstream pressure to maintain a constant preset maximum, and it either opens
or shuts in response to a pressure command.

    • Line Pressure Driven, Hydraulically Controlled On/Off
        • Limits fill-up rate and consumer over-demand


        • Protects downstream system


        • Easy flow and pressure setting




    • Engineered Plastic Valve with Industrial Grade Design
        • Adaptable on-site to a wide range of end connection sizes and types


        • Articulated flange connections eliminate mechanical and hydraulic stresses


        • Highly durable, chemical and cavitation resistant




    • 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 actuation pressure


        • Prevents diaphragm erosion and distortion




    • Internal “Differential Pressure Duct” Flow Sensor
        • No moving parts


        • Saves space and simplifies installation




Typical Applications

  • Computerized Irrigation Systems
  • Line Fill-Up Control
  • Multiple Independent Consumer Systems
  • Pressure Reducing Stations
  • Distribution Centers
  • Filter Stations





[1] BERMAD Model IR-172-50-bD opens upon pressure drop
command, limits fill-up rate and consumer
over-demand, establishes reduced pressure zone, and
maintains filter backwash pressure.
[2] BERMAD Relief Valve Model IR-13Q
[3] BERMAD Water Meter Model WPH
[4] BERMAD Air Valve Model ARA-A-P-P

English IR 172-50-bD Product Page
English IR Engineering 100
English Ordering Guide 100
English Spare Parts - Irrigation