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what is the use of glycol filling in seal pot (or)
condensate pot in instrument impluse line?
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Answer Posted / jazz
the glycol serves as a calibrating fluid for your high and
low pressure impulse tubing of the dp transmitter. In this
way since glycol has a high boiling point and does not
evaporate easily, the calibration of your dp transmitter
remains the same as long as the level of glycol (the wet leg
compensating fluid)does not change. this serves also to
protect your transmitter's electronics from high temperature
since heat will be dissipated along the way on the impulse
tubing before reaching your transmitter..
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