Stainless Steel Flanges-Welding Neck-ANSIASME

Walmi

Description

Walmi manufacture stainless steel flange welding neck type as per ANSI/ASME B16.5. Welding neck SS flange includes a long tapered hub and the outside diameter of hub at the beveling end of the welding neck is same with the outside diameter of pipe which it is to be fitted, so the SS flange can be directly welded to the end of the stainless steel pipe or stainless steel butt-welding fittings.

Walmi typically supply stainless steel flange welding neck type with a raised face(RF), flat face(FF) or Ring Type Joint (RTJ) face. The standard raised face height is 1.6mm (1/16″) for welding neck pipe flanges under 400#, 6.35mm(1/4″) for 400# and up.

The hub of stainless steel welding neck flange transfers stress from the flange to the pipe instead as well as reducing the stress concentration from the base of the hub, so stainless steel welding neck flanges are always used in high pressure piping system.

SPECIFICATION

Forged stainless steel material conforms to ASTM A182/ASME SA182, including austenitic stainless steels: F304/304L,F316/316L,F321,F347,F310S; duplex stainless steels:S31803/S32205/S2205; duper-duplex stainless steels: F32507 / UNS S32750/S2507
Dimensions conform to ANSI/ASME B16.5
NPT Threads conform to ASME B1.20.1
Up to 24″ Listed- Larger sizes available
Customized or bespoke flanges of customer drawing are available.
Certified to EN 10204/3.1.
Related Products: B16.47 flanges | EN /DIN Flanges | Pipes | Fittings | Valves

Stainless Steel Flanges-Welding Neck-ANSIASME

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