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Removing a pressure vessel and Relief device from service and inspection requirments

Removing a pressure vessel and Relief device from service and inspection requirments

Removing a pressure vessel and Relief device from service and inspection requirments

(OP)
we have recenlty shut down a portion of our facility that contains pressure vessels and relief valves. They were inspected per applicable API standards.

The system has been airgapped to hydro carbons, but currently hase cooling water still tied to the equipment.

There is a small chance that a large engineering project will converted to this system to a new process and be but back in service some time from 3 to 5 years from now.

We dont what to continue to inspect vessels and test valves. What requirments are there to end the insepctions? I know we can count service time for internal insepction, but can we end externals and PSV testing? What tasks or documentation is required.

Thank you for any help.

RE: Removing a pressure vessel and Relief device from service and inspection requirments

I see two things that you would need to accomplish - first, you would need to discuss this with the agency or regulatory body that regulates pressure vessels. If there is no outside regulatory body other than an owner/user and insurer of the equipment, you have maximum flexibility. Second, I would recommend you develop a mothball or lay-up strategy for the pressure vessels and relief devices to protect them from harmful exposure to corrosion. Once this is completed, you should have periodic routines for equipment in mothball or lay-up to check the condition of the items.

Most likely, an in-service inspection will be required to allow for return to service.

RE: Removing a pressure vessel and Relief device from service and inspection requirments

(OP)
Metengr,
Thanks for the reply. There is no outside regulatroy body on this equipment so from that perspective we are good. The issue is that this equipment was in a Process Safety Management coverd process. So when OSHA auditors are involved they want to know that you are following the best industry practice. Usually thats API 510, 653, 570, etc

SO if i was ever audited by OSHA and they see this equipment still sitting in the structure, how can I show it was properly managed (removed from inpsection program) per API requirements? The best answer would be to rip it out and scrap it, but Like I mentioned, me may want to use this process again in a few years.

Thanks,

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