Robust mechatronic flow sensor. The flow sensor works to the principle of spring-supported piston: The piston located in the valve seat in the housing is lifted by the flowing medium against the spring resistance. The piston position is detected via an inductive sensor and is output as a binary signal.

The spring resistance leads to reliable reset of the piston to its initial position with decreasing flow. This ensures position-independent installation of the flow sensor and backflow is prevented.

The switch points can be individually set and fixed via a setting screw. The robust mechanical design ensures use in harsh environments. The units are maintenance-free.

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