MSS SP-131:2017 Metallic Manually Operated Gas Distribution Valves
MSS SP-122:2017 Plastic Industrial Ball Valves
MSS SP-152:2017 Knife Gate Valves for Double Block and Bleed
MSS SP-153:2017 Modification of New Water Works Valves
MSS SP-115:2017 Excess Flow Valves, NPS 1 1/4 and Smaller, for Natural Gas Service
MSS SP-44:2016 Steel Pipeline Flanges (ANSI-approved American National Standard)
MSS SP-112:2016 Quality Standard for Evaluation of Cast Surface Finishes - Visual and Tactile Method
MSS SP-151:2016 Pressure Testing of Knife Gate Valves
MSS SP-135:2016 High Pressure Knife Gate Valves
MSS SP-105:2016 Instrument Valves for Code Applications
MSS SP-132:2016 Compression Packing Systems for Instrument Valves