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Knock out pots as "Piping Components"

Knock out pots as "Piping Components"

(OP)
If a knock out pot is constructed simply out of 18 inch pipe and fittings, can it be considered a "piping component" under API to avoid relief calculations? Probably the only credible scenario would be fire (that is, if its not considered a piping component). The equipment is not otherwise exposed to pressures exceeding 15 psi.

Thanks-

RE: Knock out pots as "Piping Components"

I've seen that done. Strainers for example can be purchased with a code stamp (have to consider fire at a minimum IMO) or non-code in which case most of the clients I've dealt with are willing to treat it as part of the piping and isn't protected against fire.

ASME Section 8, Div 1 has a good section discussing what is and isn't a pressure vessel. I don't remember exactly where it starts, will have to check tomorrow at work.

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