Long Weld Neck Flanges

Long weld necks are similar to weld neck flanges, with the exception that the neck is lengthened and acts like a boring extension. Long weld neck flanges are generally used on vessels, columns or barrels. In critical applications where working temperature, mechanical stress, and corrosion factors are elevated, heavy barrel (HB) and equal barrel (E) types might be utilized for their thicker barrels and increased support capacity.

Long Weld Neck Flange

Dimensions

B16.5
½” – 24″
150# – 2500#

Barrel length up to 24″.

Primary Alloys Inventoried

Hastelloy – C276, B3, C22, C-2000, G-30, 230
Alloy 20, 200/201, 400, 600, 601, 625, 800HT, 825
AL6XN (N08367), 904L, 310, 317L, 321, 347
Duplex Stainless – 2205, 2507, 255
Titanium – Grades 2, 7, and 12
Aluminum Grades – 1100, 3003, 6061 and 5083
Chromes-Moly – F-5, F-9, F-11 and F-22

Other material available upon request

Compliance and Certifications

ISO 9001:2015, PED 2014/68/EU, Canadian Registration Numbers (CRN’s: Nuclear and Non-Nuclear), AIS, NCA3800, 10CFR50, 10CFR21, CSA N285.0, CSA B51, NQA-1, EB2678, MIL-I-45208A, DFARS, NACE, EN 10204 3.1

Long Weld Neck