Mss sp 25 pdf

MSS SP-25 - Standard Marking System for Valves, Fittings, Flanges and Unions. MSS SP-42 - Class 150 Corrosion Resistant Gate, Globe, angle and Check Valves with Flanged and Butt Weld Ends. MSS SP-43 - Wrought and Fabricated Butt-Welding Fittings for Low Pressure Butt-Welding Fittings MSS SP-79 Socket-Welding Reducer Inserts MSS SP-83 Steel Pipe Unions, Socket-Welding and Threaded MSS SP-95 Swage(d) Nipples and Bull Plugs MSS SP-97 Integrally Reinforced Forged Branch Outlet 23.0-25.0 17.0-19.0 17.0-19.0 17.0-19.0 17.0-19.0. Cr. MSS SP-25 standard. MSS SP-25 is the most commonly used marking standard. It contains a variety of specific marking requirements that are too lengthy to list in this appendix; please refer to it when necessary to confirm the markings on a component. Mss. Standard practice. SP-97. 6. design and dimension. 6.1 A run pipe having a branch connection is weak-ened by the opening made in it. 6.2 Buttwelding Buttwelding end finish shall comply with the standard welding bevel and root face of ASME B16.25. Mss. Standard practice. SP-97. 6. design and dimension. 6.1 A run pipe having a branch connection is weakened by the opening made in it. 6.2 Buttwelding Buttwelding end finishes shall comply with the standard welding bevel and root face of ASME B16.25. Mss SP 126 : 2013. In-line, spring-assisted, center-guided check valves (carbon, alloy steel, stainless steel, & nickel Gray Iron Pipe Flanges and Flanged Fittings: Classes 25, 125, and 250. Mss SP 83 : 2014. Class 3000 and 6000 pipe unions, socket Document History. MSS SP 25. January 1, 2018. This Standard covers Classes 25, 125, and 250 Gray Iron Pipe Flanges and Flanged Fittings. It includes (a) pressure-temperature ratings (b) sizes and method of designating openings of reducing MSS SP-25-2013. Standard Marking System for Valves, Fittings, Flanges, and Unions (ANSI-approved American National Standard). 32 стр. valves, fittings, flanges, unions, piping, piping connections, flanged, soldered, brazed, threaded, welded, joints, ratings, special service.