ST. LOUIS—Potter Electric Signal Co. recently introduced what it says is an industry first: a self-testing flow switch for wet sprinkler systems that requires no discharge of water. Mike Henke, ...

The sprinklers flow about 22 gallons of water a minute — a far cry from the 250 gallons a minute discharged by a fire hose.

Trim valves to pressure switches in dry, pre-action and deluge sprinkler systems that are sealed or locked in the open position. 903.4.1 Signals.

Article 760 covers the installation of wiring and equipment for fire alarm systems, including circuits controlled and powered by the fire alarm. Those circuits are for such things as fire detection ...

QUINCY, Mass.—A new report shows that less water is needed to fight fires in sprinklered properties than in unsprinklered ones, yet it's typically only sprinklered buildings that are charged for the ...