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Flow Control and Pressure Reducing Valve IR-172-54-bD

The BERMAD Model IR-172-54-bD is a hydraulically operated, diaphragm actuated control valve that limits system demand and reduces downstream pressure to constant preset maximum values. It is a Normally Closed valve, which opens in response to a remote pressure rise command and shuts in the absence of that command.

Product Features & Benefits
    • Hydraulic Pressure Control, Normally Closed
        • Closes upon control failure


        • Limits fill-up rate and consumer over-demand


        • Protects downstream system


        • Amplifies and relays weak remote command




    • Adjustable Servo and 2-Way Pilots
        • Very low hysteresis, easy setting




    • Engineered Plastic Valve with Industrial Grade Design
        • 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 Product Applications

Typical Applications

  • Computerized Irrigation Systems
  • Line Fill-Up Control
  • Pressure Reducing Systems
  • Multiple Independent Consumer Systems
  • Systems Subject to Varying Supply Pressure
  • Energy Saving Irrigation Systems

[1] BERMAD Model IR-172-54-bD opens upon pressure rise command,

protects supply system from excessive flow, limits lateral and distribution line fill-up,

and reduces their operating pressure.
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