I have a new steam boiler plant installation with a 26,000 #/hr spray type dearator. We run the DA tank at the recommended 5 psi. The DA tank vent where the steam and bad gases continuously vent off was installed with a couple of elbows in it. We are getting intermittent spouting of liquid condensate out the vent pipe. I am pretty sure that the offsets are causing the liquid spouting out the vent on the roof, but am looking for some re-assurance an 2nd opinions here. If the contractor re-pipes the vent straight out the roof (no offset elbows) should I expect steam with a few droplets coming out? Or no drops of condensate (purely steam vapor) coming out the vent? I have seen other DA vents and just seen straight steam vapor though I didn't really study them.
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