Flow switches are comprised of two main assemblies: the housing and the shuttle assembly. As liquid flow enters the flow switch, it passes through an orifice between the inlet and outlet ports. When the flow reaches the switch’s setpoint, a magnet shuttle overcomes the downward force of a returnspring and actuates a hermetically sealed SPDT reed switch element inside the bonnet stem. As the flow decreases, the spring overcomes the lifting forced created by the liquid and deactivates the switch.
Also See: Float Level Switch Working Animation
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- How a Level Switch Works
- Flow switch Principle
- Cable Float Level Switch Working Principle
- Define Normal Status of a Process Switch ?
- Float Level Switch Working Principle Animation
- Pressure Switch Terminology
- Contact Normal State and Make/Break Sequence
- Metering Pumps
- Differential Pressure Switch Working Principle