jclsws
Mechanical
- Aug 17, 2012
- 19
We are using 2" and smaller Sch 80 stainless pipe with NPT connections in a liquified gas application. We have found that tightening the joints to seal at room temperature will maintain a seal when vapor is introduced, but will begin leaking when the liquified gas (propane) is introduced. Would cooling the pipe prior to tightening help to get a better seal, or would that not really make any difference?