Alarm Check Valve serves as a check valve by trapping pressurized water above the clapper and preventing reverse flow from sprinkler piping. The valve is designed to initiate an alarm during a sustained flow of water (such as the flow required by an open sprinkler) by operating an optional water motor alarm and/or alarm pressure switch. These too have a universal approval from LPCB, FM Global, Underwriters Laboratories and etc. Specifications Material: Ductile Iron Pressure: 300psi End Connections: Flanged/Grooved Sizes: 200NB, 150NB, 100NB, 80NB Approvals:
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