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1.1 This specification covers malleable iron flanges, pipe fittings, and valve parts, including parts to be assembled for use in railroad, marine, and other heavy duty service applications where fittings furnished in accordance with American National Standard for Malleable Iron Threaded Fittings, Class 150 and 300 (ANSI B16.3) are not considered adequate.
1.2 Service shall include up to 650°F (345°C).
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A47/A47M Specification for Ferritic Malleable Iron Castings
A153/A153M Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
American National StandardsB16.3 Malleable Iron Threaded Fittings, Class 150 and 300
Other StandardsSP-25-1936 Standard Marking System for Valves, Fittings, Flanges, and Unions Available from Manufacturers Standardization Society of the Valve and Fittings Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602.
ICS Number Code 23.040.40 (Metal fittings)