OverviewThe BERMAD Model IR-423-3W-RXZ Pressure Reducing and Sustaining Valve is a hydraulically operated, diaphragm actuated control valve with two independent functions: it sustains a minimum preset upstream pressure regardless of fluctuating flow or varying downstream pressure, and it prevents downstream pressure from rising above a maximum preset regardless of fluctuating flow or excessive upstream pressure.
Features & Benefits- Line Pressure Driven, Hydraulically Controlled
- Prioritizes pressure zones
- Protects lower pressure zones
- Controls system fill-up
- Prevents pipeline emptying
- Protects pumps from overload and cavitation
- Compensates during groundwater drawdown
- Protects downstream systems
- Advanced Hydro-Efficient Globe 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
- Filter backwash pressure sustaining
- Pump circulation systems (with orifice)
- Pressure reducing systems
- Line emptying prevention
Additional Features- F : Large control filter
- I : Position indicator assembly
- M : Flow stem
Technical Characteristics / Specifications- Model: IR-423-3W-RXZ
- Series: 400 Series
- Product type: Pressure Reducing & Sustaining Valve (hydraulically operated, diaphragm actuated)
- Control: 3-way control with manual selector and metal control accessories
- Primary functions: sustain minimum upstream pressure; prevent downstream pressure exceedance of preset maximum
- Design highlights: hydro-efficient globe design; fully supported & balanced diaphragm; unobstructed flow path; single moving part
- Typical uses: infield control heads, distribution lines, filter backwash, pump circulation and pressure management systems
- Internal product barcode (page): 26208