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Forged WN Welded Neck Flanges DN20 150# class150 RF

Minimum Order Quantity : one pallet Price : USD 1
Packaging Details : Fumigate-free wooden box Delivery Time : 20-30 WORKING DAYS
Payment Terms : L/C, T/T, Supply Ability : 100,000 TONS PER YEAR
Place of Origin: China Brand Name: Longteng
Certification: GB/ T 19001-2016/ISO9001:2015/C Model Number: Forged WN Welded Neck Flanges

Detail Information

Material: A105/C22.8/Q235/Q355B / P250GH Standard: ANSI, GB/T, Bs, DIN, GB, ISO, JIS, ASME, TUV
Production Process: Forging, Heat Treatment Tolerance: Min. 0.01mm
Hardness: HRC, HB, HV Roughness: Min. Ra0.4
Marking: Laser UT Standard: ASME Or EN

Product Description

Forged WN Welded Neck Flanges DN20 150# class150 RF

ANSI B16.5

Q235 Q355B C22.8 P250GH 


Weld neck flanges are the most popular flange type with a neck extension with a weld bevel at the end. This type of flange is designed to butt weld directly to pipe to provide a superior and relatively natural form connection. In larger sizes and higher pressure classes, this is almost exclusively the type of flange connection utilized. If only one bored flange style existed in modern applications, the weld neck would be your flange of choice.


The weld bevel joins to a pipe end with a similar bevel in a V-type connection which allows for a uniform circular weld around the perimeter to form a unified transition. This allows for the gas or liquid within the pipe assembly to flow with minimal restriction through the flange connection. This weld bevel connection is inspected after the weld procedure to ensure that the seal is uniform and lacking anomalies.




Product Parameter

Standard: ANSI B16.5,HG/T 20592, HG/T20615-2009, EN1092-1, DIN2502 DIN2527 DIN2566 DIN2573 DIN2576 DIN2632 DIN2633, GOST,etc.
Material: A105/C22.8/Q235/Q355B / P250GH
Types: welding neck, socket welding, threaded, blind, slip on, lap joint, plate
Size: NPS 1/2" to 24"/DN15-600
Pressure Rating: Class 150-Class 2500 (150#, 300#, 600#,900#,1500#, 2500#),PN6-PN16
Facing: RF/FF/RTJ
Surface treatment: Antirust Oil,Black Paint,Yellow paint,Galvanized
Certification: ISO9001:2015/C



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