The Central Alarm Check Valve is a wet pipe sprinkler system vater-supply check valve
That makes possible the installation of s

The Central Alarm Check Valve is a wet pipe sprinkler system vater-supply check valve That makes possible the installation of sprinkler systems in buildings not Subject to freezing temperatures. It is designed so that water pressure in the piping System will hold back water pressure at the valve until such time as a sprinkler Is activated.