Cast Iron Pipe Flanges and Flanged Fittings Classes 25, 125, and 250
|Publication Date:||1 January 1998|
This Standard for Classes 25, 125, and 250 Cast Iron Pipe Flanges and Flanged Fittings covers:
(b) sizes andmethod of designating openings of reducing fittings
(d) minimum requirements for materials
(e) dimensions and tolerances
(f) bolt, nut, and gasket dimensions
Standards and specifications adopted by reference in this Standard are shown in Annex I, which is part of this Standard.
Requirements relating to the product manufacturer's Quality System Programs are described in Annex A.