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MSS SP-42-2009Corrosion Resistant Gate, Globe, Angle and Check Valves with Flanged and Butt Weld Ends (Classes 150, 300 & 600)standard by Manufacturers Standardization Society, 2009
MSS SP-42-2004Class 150 Corrosion Resistant Gate, Globe, Angle and Check Valves with Flanged and Butt Weld Endsstandard by Manufacturers Standardization Society, 01/01/2004
MSS SP-42-1999Class 150 Corrosion Resistant Gate, Globe, Angle and Check Valves with Flanged and Butt Weld Endsstandard by Manufacturers Standardization Society, 07/01/1999
MSS SP-25-2013Standard Marking System for Valves, Fittings, Flanges, and Unionsstandard by Manufacturers Standardization Society, 01/01/2014
MSS SP-25-2008Standard Marking System for Valves, Fittings, Flanges and Unionsstandard by Manufacturers Standardization Society, 01/01/2008
MSS SP-25-1998Standard Marking System for Valves, Fittings, Flanges and Unionsstandard by Manufacturers Standardization Society, 01/01/1998
MSS SP-158-2021Supplemental High-Pressure Gas Test Procedures for Valvesstandard by Manufacturers Standardization Society, 2021
MSS SP-154-2018Low Pressure Knife Gate Valves for Double Block and Bleedstandard by Manufacturers Standardization Society, 03/01/2018
MSS SP-153-2017Modification of New Water Works Valvesstandard by Manufacturers Standardization Society, 2017
MSS SP-152-2022Knife Gate Valves for Double Block and Bleedstandard by Manufacturers Standardization Society, 04/01/2022
MSS SP-152-2022Knife Gate Valves for Double Block and Bleedstandard by Manufacturers Standardization Society, 04/01/2022
MSS SP-152-2017Knife Gate Valves for Double Block and Bleedstandard by Manufacturers Standardization Society, 11/01/2017