Working Principle of a Float operated Level Switch

In a float operated level switch the float rides in the process liquid surface precisely tracking liquid surface motion.
Rising liquid level lift the float sliding the attraction slip up inside the enclosing to and into the magnetic field to actuate electrical or pneumatic switch.
Float type level switch working principle




















Subsequently falling liquid level lowers the flow drawing the attraction slip out of the magnetic field to deactivate the switch.

Float type level switch




















Advantages of Float type level switches
1.High pressure Capability
2.Inexpensive
3.Easy to install and maintain

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