Liquid Flow Switch LFS 20-71

Working Range: Liquid Flow Switch type LFS 20-71 is useful device to switch in liquid line, Its working attributes are: PN16 Nominal pressure, Screwed connection, 100°C or 212°F Working temperature, This device is used in heating and cooling system, Water Supply Systems pipelines, cooling systems generator, cooling chillers output and et.

Function: Function of this device is electro-mechanic and works base on the liquid pressure force in its movement. Entered pressure of liquid on the blades surface of flow switch move the connected lever and this movement is transferred to the micro switch inside the device and changed (NO) position to the (NC) position. In this way, ON/OFF commands will be sent to electrical circuits and controlled different equipment such as pumps and electro-motors and etc. This device has full sealing by bellows mechanism and does not need consecutive maintains and service. There are blades with different length for different diameter pipeline.

Installation: Flow switch type LFS 20-71 has 1″screwed connection, it is installed from top of the pipelines (vertically ratter) by a 1″ size socket or (bush).