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Long Weld Neck Flanges (“LWN”)

Long Weld Neck Flange
Long Weld Neck Flanges

Long Weld Neck Flanges (“LWN”) are similar to weld neck flanges, with the exception that the neck (tapered hub) is extended and acts like 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.

We manufacture IBR long weld neck flanges, Galvanized Long weld neck flange , Stainless steel (SS) Long weld neck flange , Carbon steel (CS) Long weld neck flange , MS Long weld neck flange , Alloy Long weld neck flange , Nickel Long weld neck flange , Duplex stainless steel (DSS) Long weld neck flange , Super Duplex stainless Steel (SDSS) Long weld neck flange and Brass Long weld neck flange.

We manufacture Long neck flanges as per ASME B16.5, ASME B16.47, DIN, EN1092-1, BS4504, GOST 12820-80, JIS B2220, KS D3576, KS B6216, KS B1511, UNI, SABS 1123, etc. and also non-standard weld neck flanges as per drawing.

We export Long weld neck flange to United States (USA), Canada, Germany, Japan, France, Middle-east, Bangladesh, Nepal, etc.
We are manufacturers and suppliers of Long weld neck flange since the year 1971.


Dimensions of Welding Neck Flange


CLASS 150

CLASS 300

CLASS 400

CLASS 600

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