Filter Backwash Hydraulic Valve IR-470-beKU

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-3×2-350-A-I

English IR 470-beKU Product Page
English IR Engineering 400
English Ordering Guid 400 Series
English Spare Parts - Irrigation