Alarm Check Valve

AV-1-300 Alarm Check Valve

Automatically activates electric and or hydraulic alarms when the system operates

Listings and Approvals: UL and C-UL Listed, FM Approved

Pressure Rating: 20 to 300 psi (1.4 to 20.7 bar)

Available Sizes: 2.5 inch (DN65), 4 inch (DN100), 6 inch (DN150), and 8 inch (DN200)

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Features​
AV-1 alarm valves may be installed vertically or horizontally

Automatically actuates electrically and/or hydraulically operated alarms when there is a steady flow equivalent to the discharge rate for one or more sprinklers

Available preassembled with modular trim to provide a quick and convenient method for trimming valve risers (contact the company for details)

For use in wet pipe (automatic sprinkler) fire protection systems

Optional retard chamber used in installations subject to variable pressure (generally associated with public water supplies) to help prevent false alarms

Available with European Conformity trim– see technical data sheet TFP990 for details