MSS SP-152-2022 Knife Gate Valves for Double Block and Bleed standard by Manufacturers Standardization Society, 04/01/2022
MSS SP-135-2021 Errata Sheet Errata Sheet for High Pressure Knife Gate Valves Amendment by Manufacturers Standardization Society, 03/24/2022
MSS SP-140-2021 Quality Standard Practice for Preparation of Valves and Fittings for Silicone-Free Service standard by Manufacturers Standardization Society, 01/01/2022
MSS SP-81-2021 Stainless-Steel or Stainless-Steel-Lined, Bonnetless, Knife Gate Valves with Flanged Ends, Includes Errata (2022) standard by Manufacturers Standardization Society, 01/01/2022
MSS SP-68-2021 High Pressure Butterfly Valves with Offset Design standard by Manufacturers Standardization Society, 01/01/2022
MSS SP-129-2021 Copper-Nickel Fittings standard by Manufacturers Standardization Society, 09/01/2021
MSS SP-6-2021 Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings standard by Manufacturers Standardization Society, 09/01/2021
MSS SP-60-2021 Connecting Flange Joints Between Tapping Sleeves and Tapping Valves standard by Manufacturers Standardization Society, 07/01/2021
MSS SP-113-2021 Connecting Joints Between Tapping Machines and Tapping Valves standard by Manufacturers Standardization Society, 07/01/2021
MSS SP-112-2021 Quality Standard for Evaluation of Cast Surface Finishes - Visual and Tactile Method standard by Manufacturers Standardization Society, 07/01/2021
MSS SP-158-2021 Supplemental High-Pressure Gas Test Procedures for Valves standard by Manufacturers Standardization Society, 2021
MSS SP-105-2023 Instrument Valves for Code Applications standard by Manufacturers Standardization Society, 06/01/2023