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MSS SP-6-2021

Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings

For over 91 years, Standard Practice (SP)-6 for standard contact face finishes has served as an industry norm and is referenced in many other technical documents. As one of MSS’s first standards developed, it continues to define a standardized finish for gasket contact faces of pipe flanges and connecting-end flanges of valves and fittings. This Standard Practice is also intended for applications to products for which ASME B16 Standards do not contain complete facing finish requirements or for which there are no such standards.

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Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. [mss]

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