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Can anyone give me the equivalence of PN 25 to ANSI class? I need a standard to confirm the relatioship. Thanks in advance.
Hi,
PN 25 is equivalent to ANSI 150.
Please see p. 4 of this doc. http://www.valve.co.za/pdf/arca_artes_injection_desuperheater.pdf
the standard:
http://committees.api.org/standards/cre/some/refdocs/docs/07/annex1flanges.doc
Hope this helps.