The high-pressure Model 1500 inline flow switch is designed for f ield adjustability with both liquid (0.1 to 20.0 gpm) and gas (1 to 475 scfm) flow settings. A magnet in the piston housing is ...
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, ...