Southwest Irrigation, LLC
Southwest Irrigation is the leading supplier for Heap Leach Mining Systems and Agricultural Irrigation Systems in the southwest.

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



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401 E Maley
Willcox, AZ 85643
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