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Please bear with me if I am not using some of these HVAC terms correctly. I have a bit of refrigerant knowledge but the refrigerant cycle has always been tertiary to my work. I have four air-cooled glycol/water chillers purchased from an OEM. The refrigerant circuit is equipped with a...

I appreciate the feedback from everyone. Sounds like there is not much literature to validate the decision, but we all unanimously believe 316L stainless would be best. In my situation, stainless would be more expensive because I am modifying an existing copper header. The copper is already...

Hi Ed, In my case, the builders used ProPress to couple the tube together. I am not sure if the tubing was originally purged and capped or not. I'm guessing it was not. Are you referring to the CAGI or CGA for the high purity gas standard?

Hello all, Long time lurker, first time poster. I have been given a seemingly easy task but I'm hitting a wall. We have a nitrogen header piped through ISO 8 Clean Room laboratories. This is currently fed from a bulk LN2 tank and I need to disconnect that feed and supply the header from a...