Long weld neck flanges (“LWN”) are similar to weld neck flanges, with the exception that the neck (tapered hub) is extended and acts as a boring extension. Long weld neck flanges are generally used on vessels, columns, or barrels. These flange types are available also in the heavy barrel (HB) and equal barrel (E) types.
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| Size | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
|---|---|
| Standard | NSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
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