La description

Sensors from GEMS Sensors, a US company founded in 1955 in Plainville, CT, are well-known in the industrial world due to their unbeaten technical characteristics and superior response time. They are used to control and measure the levels and flow of various liquids in different industry sectors. The sensors are manufactured at three production sites in North America, Europe and Asia.Standard FS-550 switches sense liquid flow in either direction to monitor flow/no-flow conditions. They are supplied in two paddle lengths. The paddle is trimmed during installation to permit switch actuation at the desired flow rate. As flow increases in a pipe, 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.''