Published November 25, 2025
MSS Publishes New and Revised Standards
These standards have been released in the past few months.
TGhe Manufacturers Standardization Society of the Valve and Fittings Industry (MSS), has recently released a number of revised and new standards and standard practices. The list includes:
- ANSI/MSS SP134-2025, Valves for Cryogenic Service Including Requirements for Body/Bonnet Extensions
- MSS SP-150-2025, Valves for Use in Hydrogen Peroxide Service
- SP-163-2025, Cable Suspension of Pipe — Materials, Selection, Application, and Installation
- SP-100-2025, Qualification Requirements for Elastomer Diaphragms for Nuclear Service Diaphragm Valves
- SP-106-2025, Cast Copper Alloy Flanges and Flanged Fittings: Class 125, 150 and 300
More information on these and all other MSS standards updates and news can be found on their website.
