Southwest Irrigation, LLC
Southwest Irrigation is the leading supplier for Heap Leach Mining Systems and Agricultural Irrigation Systems in the southwest.

Flow Control and Pressure Reducing Valve

The BERMAD Model IR-172-55-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 an electric signal.

Features and Benefits

Line Pressure Driven, Electrically 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
  • Remote and/or Elevated Plots
  • Line Fill-Up Control
  • Multiple Independent Consumer Systems
  • Pressure Reducing Stations
  • Distribution Centers
  • Filter Stations



[1] BERMAD Model IR-172-55-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 Hydrometer Model IR-900-M0
[3] BERMAD Relief Valve Model IR-13Q
[4] BERMAD Water Meter Model WPH
[5] BERMAD Air Valve Model ARA-A-P-P



  Office 520-384-9223
401 E Maley
Willcox, AZ 85643
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