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Pressure Reducing and Sustaining Automatic Metering Valve (AMV)

The BERMAD Model IR-923-D0-KX integrates a vertical turbine Woltman-type water meter with a diaphragm actuated hydraulic control valve. Equipped with a Mechanical Shut-Off Pilot, a Pressure Sustaining Pilot and a Pressure Reducing Pilot, the BERMAD AMV sustains minimum preset upstream (back) pressure and reduces downstream pressure to a constant preset maximum. It automatically shuts itself after accurately delivering a preset quantity of water.

Features and Benefits

  • Integrated "All-in-One" Control Valve
    • Saves space, cost and maintenance
  • Easy Modification to Mechanical Drive Hydrometer
    • Adaptable to future computerized systems
  • Hydraulic Pressure and Batch Control
    • Prioritizes pressure zones and Controls system fill-up
    • Protects downstream system
    • Non-computerized quantity follow-up and control
  • Internal Inlet & Outlet Flow Straighteners
    • Saves on straightening distances
    • Maintains accuracy
  • Integrated Flow Metering Calibration Device
    • Measurement precision to ±2%
  • User-Friendly Design
    • Easy pressure and dose setting
    • Simple in-line inspection and service

Typical Applications

  • Semi-Automatic Irrigation Systems
  • Manual Irrigation Intended for Computerization
  • Line Fill-Up Control Solutions
  • Systems Subject to Varying Supply Pressure
  • Pressure Reducing Systems
  • Volumetric Irrigation Systems




[1] BERMAD Model IR-923-D0-KX sustains supply system pressure,

     protects filter and   downstream system, and delivers precise water quantity.
[2] BERMAD Pressure Reducing Valve Model IR-220-bZ
[3] BERMAD Vacuum Breaker Model ½"-ARV