Pressure Reducing and Sustaining Valve IR-423-50-R

The BERMAD Pressure Reducing and Sustaining Valve with Hydraulic Control is a hydraulically operated, diaphragm actuated control valve that performs three independent functions. The BERMAD Model IR-423-50-R sustains the preset minimum upstream pressure, reduces downstream pressure to a constant preset maximum, and it either opens or shuts in response to a remote pressure command.

  • Hydraulic Pressure Control

-Line pressure driven

-Sustains upstream line pressure

-Controls system fill-up

-Protects downstream systems

-Hydraulically controlled On/Off

  • Advanced Globe Hydro-Efficient Design

-Unobstructed flow path

-Single moving part

-High flow capacity

  • Fully Supported & Balanced Diaphragm

-Requires low opening and actuation pressure

-Excellent low flow regulation performance

-Progressively restrains valve closing

-Prevents diaphragm distortion

  • Simple In-Line Inspection and Service

Typical Applications

  • Computerized Irrigation
  • Line Fill-Up Control
  • Line Enptying Prevention
  • Pressure Reducing Stations
  • Irrigation Machines
  • Distribution Centers
  • Low Supplied Pressure Irrigation Systems


[1] BERMAD Model IR-423-50-R opens upon pressure drop
command, sustains filter back flush pressure and reduces
system pressure.
[2] BERMAD Relief Valve Model IR-43Q
[3] BERMAD Water Meter Model WPH
[4] BERMAD Air Valve Model ARC-A-I-I
[5] BERMAD Air Valve Model ARC-A-P-I
[6] BERMAD Filter Flush Valve Model IR-405-Z


English IR 423-50-R Product Page
English IR Engineering 400
English Ordering Guid 400 Series
English Spare Parts - Irrigation
English IR-423-50-R IOM