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Pressure Reducing and Sustaining Valve IR-423-RXZ

The BERMAD Model IR-423-XZ Pressure Reducing and Sustaining Valve is a hydraulically operated, diaphragm actuated control valve with two independent functions. It sustains minimum preset upstream pressure regardless of fluctuating flow or varying downstream pressure, and it prevents downstream pressure from rising above maximum preset regardless of fluctuating flow or excessive upstream pressure.

Product Features & Benefits

Line pressure Drive, Hydraulically controlled
■ Prioritized higher pressure zones
■ Protects lower pressure zones
■ Controls system fill-up
■ Prevents pipeline emptying
■ Protects pump from overload and cavitation
■ Compensates during groundwater drawdown
■ Protects downstream system
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 Product Applications
  • Line Fill-Up Control Solutions
    Filter Backwash Pressure Sustaining
    Pump Circulation Systems (with Orifice
    Pressure Reducing Systems
    Line Emptying Prevention