JIANGYIN TUOCHUAN METAL MATERIALS CO., LTD
Professional manufacture of stainless steel flanges in China
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Long weld neck flange, or LWN, is considered a specialty flange because of its protruding neck, also referred to as a hub. The neck extends from the flat surface of the flange and receives and guides the pipe into place — the neck serves as an extension of the boring. Tapering the neck provides extra reinforcement for use in high-pressure or extreme and fluctuating temperature applications. Tapering the flange reduces the steel's thickness so that the opening of the neck blends with the pipe it receives — the tapered neck appears to be an extension of the pipe.
Long weld neck flanges are mainly used in petroleum and chemical industry, and more and more people like long weld neck flanges because of its easier installment.
Long weld neck flange
Standard: ANSI B16.5
Type: long weld neck flange
Class: CL150, CL300, CL600, CL900, CL1500
Size: 1/2-24inch
Material: F316
Length through hub: NPS≤4, L Max 229mm, NPS＞4, Length Max 304, others agreed by two parties
Brand: TC METAL
Technology: by forging
Raw material: ingot, bar or billet
Certificate: MTC or EN10204 3.1 as per NACE MR0175
Quality system: ISO9001; PED 97/23/EC
Lead time: 15-30 days depending on quantity
Payment term: T/T, L/C, D/P
Origin: Jiangyin, China
Loading port: Shanghai, China
Package: suitable for seaway transportation, ply wooden case with plastic film sealed
MOQ: 1 ton
Drawing:
