Alarm Check Valve Assembly Installation Detail

The wet alarm valve is designed for applications where the water is unlikely to freeze. The bypass check valve reduces the possibility of false alarms by permitting slow as well as small transient increases in water supply pressure to be passed through. Inspect the check valve clapper located on the bypass line.

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Inspect the valve rubber.

Alarm check valve assembly installation detail. Fire fighting fire alarm check valve installation details with auto cad layout fire alarm valve wet alarm valve alarm valve alarm line valve alarm check valve water flow pressure switch wet. Clean the 20 nb 3 4 strainer provided on the sprinkler alarm bell line. The water staying pressurized in the pipes is released over the fire area after the sprinkler is activated. 14 globe alarm check valves general description physical data 3 4 6 alarm check valve assembly and parts list 8 alarm check valve assembly and parts list.

Clean the strainer of restriction assembly. When a flow of water from the system equals or exceeds that of a single sprinkler the valve is to actuate a fire alarm. The alarm check valve is a water flow alarm device designed for vertical installation in the main supply to a wet pipe sprinkler system. Close the alarm test valve and verify that water has ceased to flow from the alarm line drain.

The av 1 300 alarm check valve trim includes pressure gauges to monitor system pressure conditions a bypass check valve a main drain valve and an alarm test valve. Globe alarm check valve installation and maintenance guide table of contents june 2016 page i bulletin a c v i m rev.