Long Weld Neck Flanges Manufacturer

Long Weld Neck Flanges

Extended Strength for Critical Applications

Long Weld Neck Flanges feature an extended tapered hub, providing additional reinforcement and a direct connection to vessels, columns and process equipment.

Designed for applications involving high pressure, elevated temperatures and mechanical stress, they are also available in Heavy Barrel (HB) and Equal Barrel (E) configurations for increased wall thickness and structural support.

STELVERA FORGE S.p.A. manufactures Long Weld Neck Flanges in a wide range of materials, sizes and pressure classes, with custom dimensions available on request.

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, NACE, EN 10204 3.1

Long Weld Neck