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Pressure Relief/Sustaining Valve IR-430-55
The BERMAD Model IR-430-55 is a hydraulically operated, diaphragm actuated control valve that can fulfill either of two separate functions. When installed in-line, it sustains minimum preset upstream (back) pressure. When installed as a relief or circulation valve, it relieves line pressure in excess of preset. The BERMAD Model IR-430-55 either opens or shuts in response to an electric signal.
- Line Pressure Driven PSV Electrically Controlled On/Off
- Controls system fill-up
- Relieves excessive pressure protecting pump and system
- Switches between pressure regimes
- Wide range of pressures and voltages
- 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
- Simple In-Iine Inspection and Service
Typical Applications
- Downhill Supply Lines Emptying Prevention
- Systems with Various Pressure Regimes
- Line Fill-Up Control
- Backup for Reservoir Supply Valves
- Pump Overload and Cavitation Protection
- Pump Minimum Flow Safeguard
- Excessive Line Pressure Protection
