Liquid in high side of dp transmitter.
Liquid in high side of dp transmitter.
(OP)
Im working on a dp transmitter at a natural gas plant that measuring flow. We cant keep liquids from building up on high side of the dp transmitter. The operators have to manually drain daily. The transmitter is mounted two feet above taps almost straight up and down. It is a line coming from dust filter to a product heater. Anyone have any advice on what we can do to not have to manually drain daily?





RE: Liquid in high side of dp transmitter.
Good luck,
Latexman
RE: Liquid in high side of dp transmitter.
RE: Liquid in high side of dp transmitter.
This assumes also that the DP transmitter can handle the saturation temperature of condensate forming on its diaphragms, otherwise you need to trap some condensate in there to allow the trapped condensate to cool to protect the transmitter. That trapped liquid needs to be present when the transmitter is zeroed.
RE: Liquid in high side of dp transmitter.
thanks for the explanation as i've encountered the same problem before and i could not understand why condensate collected in dP xmtr tubing located above taps. however, since increasing the orifice plate size, the "condensate" has not formed. what was more strange was the condensate collected only on upstream side of dP xmtr leg and not the downstream side. when the plate was removed/replaced, about a gallon of distillate was drained from the piping. no distillate since.
-pmover