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Hi. Because vendor is there, I think what he asked is in priority. Always use nitroge, because Nitrogen penetration is higher and is safer. Find major leaks by nigrogen. Based on API test pressure is 90% of PSV set point. You must categorize leak in 2 groups: external leaks from flanges...

I am not sure if it is allowed to have a phase change from liquid to vapor in tubes! If flow failure in tubes are important just put a low flow switch and stop shell inlet media. During operation tubes are not always inside liquid but to protect them from getting dried baffles considered to...

Hi with these informations you gave I think that it is a matter of operation at first! If there is HC in water, it means that your system works good! The inlet flow water content is very low! check from when this happened? From the first begining day of plant startup or from a specific date...

Hi guys, Actually I am more practical than a designer but as I remember in our projects during commissioning and start-up, there was 2 system for low pressure gases, one as normal low pressure design and another for Low low pressure systems like offspec storage tank with high content of H2S...