Problems with the use of magnetic flap level gauges in boilers
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Are magnetic flap level gauges used in boiler drums operating at temperatures over 300°C? How is it working?
A magnetic flap level gauge can be used; abroad, these gauges can handle temperatures up to 520 degrees, but they have never been actually used in practice.
It is not recommended for use; the pressure becomes quite high at temperatures above 300 degrees Celsius, so careful selection is necessary.
Direct-reading level gauges can be either glass tube type or glass plate type.