off-peak flow bypass and an integral "watchdog" backup valve. the system reduces a high upstream pressure to a lower, constant downstream pressure, regardless of fluctuating demand or varying upstream pressure. the "watchdog" backup valve is fully open in normal operation due to its double chamber configuration...
protects the consumers from excessive pressure and ensures continues water supply in emergency situations. the "watchdog" backup valve is fully open in normal operation due to its double chamber configuration, minimizing head loss and maximizing flow through the valve. should pressure rise downstream of...
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