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Nozzle sizes 2B, 3B on ASME Sec VIII Div 1 Vessel (16" Pipe Shell)

Nozzle sizes 2B, 3B on ASME Sec VIII Div 1 Vessel (16" Pipe Shell)

Nozzle sizes 2B, 3B on ASME Sec VIII Div 1 Vessel (16" Pipe Shell)

(OP)
Dear Forum members,
I came across a vessel Input data from client. Client has marked 2B and 3B as nozzle sizes. I believe these are 2NPS and 2NPS nozzles. But any references of these are most welcome please.
I came across a mute thread also, but no one has posted what was the result later.
thread794-107714: Japanese Nominal Nozzle Sizes?

RE: Nozzle sizes 2B, 3B on ASME Sec VIII Div 1 Vessel (16" Pipe Shell)

Polite Email to the client works.

"Please clarify your marked letters "2B" and "3B" on drawing ABCD-1234/Rev-2 on Dec 20 2015."

RE: Nozzle sizes 2B, 3B on ASME Sec VIII Div 1 Vessel (16" Pipe Shell)

(OP)
Dear racookpe1978,
Thanks for the advise. I was looking for some technical reference. It may be just the size, 2NPS and 3NPS and I am using those, but would like to know why people use this, on what basis? Thanks again.

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