Filter Backwash Hydraulic Valve IR-3×3-350-I

The BERMAD Model IR-3×3-350-I 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-3×3-350-I is available in Angle flow (A) and Straight flow (S) configurations.

    • 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




    • Cast Iron 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-3×3-350-S-I 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 Hydrometer Model IR-900-M0
[3] BERMAD Air Valve Model ARC-A-I-P

English IR 3x3-350-I Product Page
English Ordering Guide 350 Series
English Spare Parts - Irrigation