WATER FLOW ALARM SWITCH WITH RETARD

Carbon Steel Pipes Fittings Flanges Sprinkler Water Flow Alarm Switch With Retard Wfdn Series Water Flow Detector Water Flow Alarm Switch with Retard Mechanical devices designed to send an alarm signal upon sustained water flow in the sprinkler system, with a built-in time delay (retard) to minimize false alarms. Sizes Available: (2″ to 8″).