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Shuttle-Type Flow Switch: Operating Principle

Adjustable Versions

Adjustable shuttle sensor versions for flow control applications.

Adjustable versions of the FS-200 and FS-400 Flow Switches incorporate an internal adjustable bypass vane which is controlled externally using an ordinary, flat-blade screwdriver. As the bypass vane is rotated to its open position, an increasing amount of liquid is allowed to bypass the shuttle assembly, resulting in the need for a higher rate of flow to actuate the switch; closing the adjustable bypass vane results in switch actuation at lower flow rates. Flow switch actuation can be set from 0.75 GPM to 15 GPM.

Shuttle sensor flow path configuration image.

90° Flow Path Versions

Shuttle sensor flow path diagram for reference.

Replace an ordinary 90° pipe joint with an FS-400 Series switch to monitor liquid flow with 1% repeatability. A choice of seven flow rate actuation settings ranging from 0.75 GPM to 10.0 GPM are offered.