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The "tried and true",
extremely simple and low cost approach to
level control are float switches.
We are all familiar with their application for toilet tank
level control in lavatories.
For the less demanding level applications; such as clean
water at ambient temperature and pressure; floats are economical, reliable,
repeatable and long lasting.
Even for the
more benign industrial applications, floats
can be the right technology for
liquid level control.
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