As the liquid level increases and passes the level of the float, the float pivots upwards and switches the output. Similarly, as the level of the liquid decreases and falls below the level of the float, the float pivots downwards and again switches the output. The magnetically-coupled, snap-action switching with no springs means reduced maintenance, and there are no glands or linkages which could cause leaks.
Features
Simple, rugged and reliable
Side or top mounting
Direct or chamber mounting
Full range of flange mountings
Variety of switch mechanisms
Electrical or pneumatic switching
Materials of construction to suit most liquids
Application
Reliable high and low liquid level detection is essential.
Overfills and overflows are dangerous and costly, while empty vessels lead to pumps running dry
It is common practice to fit an independent high level alarm switch as a back-up device
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