Reduced section bolting.
Reduced section bolting.
(OP)
Anyone have experiance/knowledge of the legality of using reduced section bolting to attach a dished head? The vessel is an ASME Section VIII-1 pressure vessel and we want to have the bolting machined to a calculated dimension allowing the head to be the relieving device for the vessel.





RE: Reduced section bolting.
Simply put, I'd say the answer is no. First, you'd probably not get enough bolt area to seat the gaskets so you'd have a perpetual leaker. The Code legality lies with getting the head/bolts certified as a Code legal device. I'd suspect that you'd have a hard time getting a UD stamp on the head.
This issue sounds to me like an MBA inspired expedition, not one inspired by an ME.
jt
RE: Reduced section bolting.
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RE: Reduced section bolting.
I often wonder how many questions get posted on these forums that are simply put...."expeditions"
-MJC