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

Filter Backwash Hydraulic Valve

The BERMAD Filter Backwash Flow Control Valve is a hydraulically operated, diaphragm actuated control valve that limits filter system backwash flow to a constant preset maximum. This eliminates the risk of filtration element collapse or of grains being flushed out.

Line pressure driven Hydraulic Flow Control

  • Prevents flushing out of grains or filtration element collapse

Servo Flow Pilot Controlled

  • Dynamic integrated needle valve
  • Very low hysteresis
  • Easy flow setting

Advanced Globe Hydro-Efficient Design

  • Unobstructed flow path
  • Single moving part
  • High flow capacity

Fully Supported & Balanced Diaphragm

  • Requires low opening and actuation pressure
  • Excellent low flow regulation performance
  • Progressively restrains valve closing
  • Prevents diaphragm distortion

Hydraulic Flow Sensor (upstream installation)

  • No moving parts
  • No need for flow straightening

Typical Applications

  • Filter Stations
  • Systems Subject to Varying Supply Pressure



[1] BERMAD Model IR-470-beKU Limits system backwash flow, preventing flushing out of grains.
[2] BERMAD Filter Backwash Hydraulic Valve Model IR-3x2-350-A-I



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