This Standard for Classes 25, 125, 250, and 800 Cast Iron Pipe Flanges and Flanged Fittings covers: (a) pressure temperature ratings, (b) sizes and methods of designating openings for reduced fittings, (c) marking, (d) minimum requirements for materials, (e) dimensions and tolerances, (f) bolt, nut, and gasket dimensions, and (g) tests.
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Published: 01/01/1991 ANSI: ANSI Approved Number of Pages: 14