Pressure Reducing and Sustaining Valve IR-423-KXZ

The BERMAD Model IR-423-KXZ is a hydraulically operated, diaphragm actuated control valve that sustains minimum preset upstream (back) pressure and reduces downstream pressure to a constant preset maximum.

  • Line Pressure Driven, Hydraulically Controlled

-Protects downstream system

-Prioritizes pressure zones

-Controls system fill-up

  • Advanced Globe Hydro-Efficient Design

-Unobstructed flow path

-Single moving part

-High flow capacity

  • Fully Supported & Balanced Diaphragm

-Requires low actuation pressure

-Excellent low flow regulation performance

-Progressively restrains valve closing

-Prevents diaphragm distortion

  • User-Friendly Design

-Easy pressure setting

-Simple in-line inspection and service

-Easy addition of control features

Typical Applications

  • Line Fill-Up Control Solutions
  • Line Emptying Prevention
  • Pressure Reducing Systems
  • Infield Filter Backwash Pressure Sustaining


[1] BERMAD Model IR-423-KXZ sustains supply system pressure thereby preventing emptying,

controls laterals and distribution line fill-up, and reduces their operating pressure.
[2] BERMAD Relief Valve Model IR 43Q-R
[3] BERMAD Air Valve Model ARA-A-P-P
[4] BERMAD Vacuum Breaker Model ½”-ARV

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