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Manufacturers Standardization Society of the Valve and Fittings Industry (MSS)

MSS plays a key role in creating standards that ensure the quality, safety, and performance of valve, fitting, and piping systems.

Nimonik works with a variety of Standard Development Organizations (SDOs) to provide standards in PDF, Print and Subscription format. Through our Standards Store, you can purchase standards from MSS in Print and PDF format. To obtain MSS Standards and specifications in a subscription format for your entire organization, please contact us. Nimonik prides itself on a strong relationship with its SDO partners.

Manufacturers Standardization Society of the Valve and Fittings Industry (MSS)

The Manufacturers Standardization Society of the Valve and Fittings Industry (MSS) is a leading industry association that develops and maintains technical standards for valves, fittings, flanges, pipe hangers, and related components. Since its founding in 1924, MSS has been committed to creating standardized specifications that improve product quality, compatibility, and safety in various industries, including oil and gas, water treatment, and power generation.

MSS standards cover essential areas such as valve design, materials, testing, and performance, ensuring products meet the rigorous demands of industrial applications. By following MSS guidelines, manufacturers and engineers can enhance reliability, safety, and efficiency in piping systems while reducing maintenance costs and downtime.

One of the core goals of MSS is to promote the global harmonization of standards, reducing technical barriers to trade and simplifying the integration of valves and fittings across different regions and industries. Compliance with MSS standards allows manufacturers to meet international expectations and maintain competitiveness in a global market.


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