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Filter Backwash Hydraulic Valve

The BERMAD Model IR-2x2-350-R is a compact 3-port valve in a T configuration. It is double chambered, hydraulically operated, and diaphragm actuated. Designed for automatic backwashing of filtration systems, the BERMAD Model IR-2x2-350-R is available in Angle flow (A) and Straight flow (S) configurations.

Features and Benefits

  • Line Pressure Driven
  • Double Chambered Design
    • Wide application range
    • Requires low actuation pressure
    • Protected diaphragm
  • Dynamic Sealing
    • Seals at very low pressure
    • Prevents seal friction and erosion
  • Brass Body
    • Rigid construction, high stress resistance
  • Short Valve Travel
    • Smooth changes of flow direction
    • Eliminates mixing of supply and waste water
  • User- Friendly
    • Can be installed in various orientations
    • Simple in-line inspection and service

Typical Applications

  • Automatic Backwash of Filter Batteries
  • Gravel Filters
  • Sand Filters
  • Disk Filters
  • Screen Filters
  • Single Filter Autonomic Backwash System
  • Angled or Straight Installations


[1] BERMAD Model IR-2x2-350-A-R allows flow into the filter,
     and switches closed upon pressure rise command,
     thereby blocking inlet to filter and enabling backwash flow
     from the filter.
[2] BERMAD Backwash Flow Control Valve Model IR-470-beKU
[3] BERMAD Water Meter Model WPH
[4] BERMAD Air Valve Model ARA-A-P-P