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Filter Backwash Hydraulic Valve

The BERMAD Model IR-4x3-350-A-I is a compact 3-port valve, in a T configuration. It is single chambered, hydraulically operated and diaphragm actuated with an angled flow. The valve is designed for automatic backwashing of filtration systems where the filter supply port is vertical to the supply manifold

Features and Benefits

  • Line Pressure Driven
  • Hydro-Efficient Design
    • Single moving part
    • Unobstructed flow path
    • High flow capacity
  • Fully Supported & Guided Diaphragm
    • Prevents diaphragm distortion
  • 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
  • Angled Installations



[1] BERMAD Model IR-4x3-350-A-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 Water Meter Model WPH
[3] BERMAD Air Valve Model ARC-A-I-I