ANSI/ASME LONG WELD NECK STANDARD CONNECTION FLANGES DATASHEETS WEIGHT CHART DIMENSIONS MANUFACTURERS
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Types of Long Weld Neck Standard Connection Flanges Datasheets
| FLANGE STANDARDS | Specifications |
|---|---|
| ASME STANDARDS | ASME B16.1 – Gray Iron Pipe Flanges and Flanged Fittings: Classes 25, 125, and 250 |
| ASME B16.5 – Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard | |
| ASME B16.24 – Cast Copper Alloy Pipe Flanges and Flanged Fittings: Classes 150, 300, 600, 900, 1500, and 2500 | |
| ASME B16.36 – Orifice Flanges | |
| ASME B16.42 – Ductile Iron Pipe Flanges and Flanged Fittings: Classes 150 and 300 | |
| ASME B16.47 – Large Diameter Steel Flanges, NPS 26 Through NPS 60 | |
| ASTM STANDARDS | ASTM A105 / A105M – Specification for Carbon Steel Forgings for Piping Applications |
| AWWA STANDARDS | AWWA C115 – Standard for Flanged Ductile Iron Pipe with Ductile-Iron or Gray-Iron Threaded Flanges |
| ISO STANDARDS | ISO 5251 – Stainless steel butt-welding fittings |
| MSS STANDARDS | MSS SP-9 – Spot Facing for Bronze, Iron, and Steel Flanges |
| MSS SP-25 – Standard Marking Systems for Valves, Fittings, Flanges, and Unions | |
| MSS SP-44 – Steel Pipeline Flanges | |
| MSS SP-106 – Cast Copper Alloy Flanges and Flanged Fittings Class 125,150, and 300 | |
| ASME B16.5 and ASME B16.47 cover pipe flanges up to NPS 60 (B16.5 from 1/2″ to 24″ and B16.47 from 26″ to 60″). ANSI B16.47 covers two series of flanges, Series A is equal to MSS SP-44-44, and Series B is equal to API 605 (API 605 has been canceled). |