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Welding neck flange

The welding neck flange is normally referred to as the “high hub” flange. It is designed to transfer stresses to the pipe, thereby reducing high stress concentrations at the base of the flange. The welding neck flange is the best designed butt-welding flange of those currently available because of its inherent structural value.

Specification

A) Size: 1/2 "-60", DN15-DN4000

B) Materials:

a) Carbon steel: ASTM A105/A105M/ASME AS105, ST37.2

b) Stainless steel: ASTM A182 F304, F304L, F316, F316L

C) Standard:

ANSI/ASME B 16.5 Standard,B16.47 Series A & B,AWWA C207,BS10-1962,BS4504

Sec. 3.1/1989,EN1092-1: 2002,ISO 7005-1,JIS B2220,DIN Standard

 

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