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, ...

This difference also explains why a 14-inch-wide, fan-forced, kick-space heater can match the heat output of several linear feet of fin-tube baseboard. The kick-space heater uses forced convection on ...

Switch configuration shall consist of one single pole double throw (S.P.D.T.) Form C set of contacts rated at 15A, 125 VAC and 2.5A, 30 VDC. It shall be possible to field install an optional ...

The install effort is minimal, the price of the disc is ultra low-buck, and the mod can improve water flow up to 30 percent. Follow along as we install the Flow Kooler impeller disc on the water ...

With Alarm 1, the switch will detect a low flow situation anywhere between 0.01 and 3 feet per second FPS (0.003 to 0.9 meters per second MPS).