Gems Sensors FS-550 Series Paddle Flow Flow Sensor for Liquid

The Gems Sensors Flow Switches sense liquid flow in either direction to monitor flow/no-flow conditions and are supplied in two paddle lengths. The paddle is trimmed during installation to permit switch actuation at the desired flow rate. As flow increases, the paddle of the switch pivots to move out of the liquid path, producing less than 3 psig of pressure drop regardless of pipe size.

Out of Liquid Path with Increasing Flow
Minimum In Line Restriction
Patented Cam Design Assures Low Pressure Drop