New MSS Standard Projects Project: PN-22-15, New SP-Design Guidelines for Gasketed Valve Joints. Opened: October 2022

A Quicker Way to Order MSS Standard Practices . Click on the publication number in the left column of the table below for more information and/or to purchase the standard. Note: Earlier versions of each SP are also included. Or, choose a category below to view both archived and current standards:

MSS is a non-profit technical association organized for the development and improvement of industry, national, and international codes and standards related to the valve and fittings industry.

This Standard Practice provides recommended rules and guidelines for determining SI (metric) units and numbers, when necessitated, for use in bi-dimensioned new or revised MSS standards, or in the understanding thereof.

You may order MSS Standard Practices by viewing our Active Standards page, then clicking on the standard for more information and to order. Phone: Call MSS Headquarters at 703-281-6613 between 8:00am - 5:00pm (ET)

In the early 1900s, a group of concerned manufacturers recognized the need for industry standards and became the core of what is now known as the Manufacturers Standardization Society. In this, the first of a 4-part series, MSS Member Greg Johnson explains how MSS came to be and how they fared through the Great Depression and World War II...

2021年6月1日 · MSS PUBLISHES REVISED STANDARD FOR VALVE USERS. Vienna, VA – The Manufacturers Standardization Society (MSS) of the Valve and Fittings Industry announces that SP-92-2021, Valve User Guide, has been revised and published by MSS.

2022年1月31日 · MSS collaborates globally with standardizing bodies and regulatory authorities to ensure its standards meet industry needs. By purchasing standards through the MSS website, you get the most current editions directly. MSS standards are also available through ANSI, Accuris, Intertek, and Nimonik.

2021年7月30日 · The purpose of this Standard Practice is to prevent interface and interference problems between tapping sleeves and tapping valves through the use of a positioning recess and mating raised face of the connecting flanges between tapping sleeves and tapping valves.

2024年12月12日 · Alexandria, VA – The Manufacturers Standardization Society (MSS) of the Valve and Fittings Industry announces that SP-157-2024, Quality Standard for Phosphate Surface Protective Coatings for Valves, Fittings, and Related Steel Piping Components has been revised and published by MSS.