I have a pressure vessel that has a U-1 form (as well as the nameplate) that has two different sets of MAWPs and MDMTs.
One MAWP is 250 psi @ -20F to 300F and the other MAWP is 85 psi @ -20F to -50F.
This vessel is operated on a 24/7 basis between -30F and -40F.
The vessel contains anhydrous...
No it would not be allowed and in essence you are merely creating another document that needs to be reviewed and certified annually. It is a great idea to have an overall procedure to ensure all PSM documents are setup and managed properly so I would recommend including this in your highest...
I have a pressure vessel that has a U-1 form (as well as the nameplate) that has two different MAWPs and MDMTs.
One MAWP is 250 psi @ 300F to -20F and the other MAWP is 85 psi @ -20 to -50F.
We operate this vessel between -30F and -40F.
The vessel contains anhydrous ammonia and is operated at...
Thanks for your response gr2vessels. Am I correct in saying this...
As long as the vessel is operated within the temperatures of -20F to +300F, the MAWP is 250 psi and my RV can be set to 250 psi.
When the vessel is operated between -50F to -20F, the MAWP is 85 psi and it needs an RV with a...
I have a pressure vessel that has a U-1 form (as well as the nameplate) that has two different MAWPs and MDMTs.
One MAWP is 250 psi @ 300F and the other MAWP is 85 psi @ -50F. We operate this vessel between -30F and -40F. The vessel contains anhydrous ammonia and is operated at around 9"hg...
