ASME B16 Piping Component Standards

Piping component standard developed by the American Society of Mechanical Engineers or the American National Standards Institute (ANSI)

• B16.1 Cast Iron Pipe Flanges and Flanged Fittings
• B16.3 Malleable Iron Threaded Fittings, Class 150 and 300
• B16.4 Cast Iron Threaded Fittings, Classes 125 and 250
• B16.5 Pipe Flanges and Flanged Fittings
• B16.9 Factory Made Wrought Steel Buttwelding Fittings
• B16.10 Face to Face and End to End Dimensions of Valves
• B16.11 Forged Fittings, Socket Welding and Threaded
• B16.12 Cast Iron Threaded Drainage Fittings
• B16.14 Ferrous Pipe Plugs, Bushings and Locknuts with Pipe Threads
• B16.15 Cast Bronze Threaded Fittings Class 125 and 250
• B16.18 Cast Copper Alloy Solder Joint Pressure Fittings
• B16.20 Ring Joint Gaskets and Grooves for Steel Pipe Flanges
• B16.21 Nonmetallic Flat Gaskets for Pipe Flanges
• B16.22 Wrought Copper and Copper Alloy Solder Joint Pressure Fittings

• B16.23 Cast Copper Alloy Solder Joint Drainage Fittings – DWV
• B16.24 Cast Copper Alloy Pipe Flanges and Flanged Fittings Class 150, 300, 400,600, 900, 1500 and 2500
• B16.25 Buttwelding Ends
• B16.26 Cast Copper Alloy Fittings for Flared Copper Tubes
• B16.28 Wrought Steel Buttwelding Short Radius Elbows and Returns
• B16.29 Wrought Copper and Wrought Copper Alloy Solder Joint Drainage Fittings – DWV
• B16.32 Cast Copper Alloy Solder Joint Fittings for Sovent Drainage Systems
• B16.33 Manually Operated Metallic Gas Valves for Use in Gas Piping systems Up to 125 psig (sizes ½ through 2)
• B16.34 Valves – Flanged, Threaded and Welding End
• B16.36 Orifice Flanges
• B16.37 Hydrostatic Testing of Control Valves
• B16.38 Large Metallic Valves for Gas Distribution (Manually Operated, NPS 2 ½ to 12, 125 psig maximum)
• B16.39 Malleable Iron Threaded Pipe Unions, Classes 1150, 250 and 300
• B16.40 Manually Operated Thermoplastic Gs Shutoffs and Valves in Gas Distribution Systems
• B16.42 Ductile Iron Pipe Flanges and Flanged Fittings, Class 150 and 300
• B16.47 Large Diameter Steel Flanges (NPS 26 through NPS 60)