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Long weld neck flanges

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Good quality plate flanges for sales
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Long weld neck flanges

China Long weld neck flanges supplier
Long weld neck flanges supplier Long weld neck flanges supplier

Large Image :  Long weld neck flanges

Product Details:

Place of Origin: China
Brand Name: BOYANG
Certification: ISO9001, TUV
Model Number: long weld neck flange

Payment & Shipping Terms:

Minimum Order Quantity: 100 pcs
Price: 5-100 usd/pc
Packaging Details: suitable for seaway transportation, ply wooden case with plastic film sealed
Delivery Time: 15-20 days
Payment Terms: T/T, D/P, L/C
Supply Ability: 20 tons per month
Detailed Product Description
Application: Petrochemical Industry Material: F304, F316, F51

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, CL2500                        

Size: 1/2-24inch                         

Material: F304, F316, F321, F321H, F316TI, F51, F60, A105, A350LF2        

Length through hub: NPS≤4, L Max 229mm, NPS>4, Length Max 304, others agreed by two parties                      

Brand: BOYANG                        

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  



                                  Long weld neck flanges




Long weld neck flanges

Long weld neck flanges



Contact Details

Contact Person: Ms. Jenny

Tel: 86-510-86992379

Fax: 86-510-86992369

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