The BERMAD Model IR-430 Pressure Relief/Sustaining Valve 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 regardless of fluctuating flow or varying downstream pressure. When installed as a relief or circulation valve, it relieves line pressure in excess of preset.
Product features & benefits
oLine Pressure Driven Pressure Relief/Sustaining Valve
oControls system fill-up
Sustains upstream line pressure
Relieves excessive pressure protecting pump and system
Prioritizes pressure zones
oAdvanced Globe Hydro-Efficient Design
Unobstructed flow path
Single moving part
High flow capacity
oFully Supported & Balanced Diaphragm
Requires low opening and actuation pressure
Excellent low flow regulation performance
Progressively restrains valve closing
Prevents diaphragm distortion
oUser Friendly Design
Easy pressure setting
Simple in-line inspection and service
TYPICAL PRODUCT APPLICATIONS
Typical Applications
Downhill Supply Lines Emptying Prevention
Pressure Zone Prioritizing
Line Fill-Up Control
Pump Overload and Cavitation Protection
Pump Minimum Flow Safeguard
Excessive Line Pressure Protection