Large-diameter butt-weld flange is a type of flange widely used in industry, mainly used on medium and high-pressure pipelines and equipment. Its diameter is generally above DN1500, and the main materials include cast steel, carbon steel, stainless steel, alloy steel and forged steel, etc.
Structural features
Large-diameter butt-weld flange, also known as necked butt-weld flange or WN flange, consists of a flat flange and a butt-weld flare, which form a whole. This design allows the butt-weld nozzle of the flange to be connected to the pipe or pipe fitting by welding, ensuring high strength and sealing performance .
Application areas
Butt-weld flange is suitable for occasions with high pressure and temperature due to its high rigidity and strength. It is commonly used in pipelines or equipment with high-pressure, high-temperature, flammable, explosive, toxic, harmful, and highly toxic media such as chemical, petroleum, and electric power.
| Name | Stainless Steel Sanitary/Industrial OEM/ODM Weld Plate/Weld Neck/Raised Face/Flat Welding/Plate/ |
| Technology | Forging |
| Pressure Rating | Class:150#, 300#, 600#, 900#, 1500#, 2500#, etc. |
| PN:PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100, PN160, etc. | |
| Sealing Type | FF, RF, RJ, FM, M, T, G, etc. |
| Sealing Finish | Smooth or Spiral Finish (As your request) |
| Varieties | PL (Plate Flat), WN (Weld Neck), BL (Blind), SO (Slip-ons), SW (Socket Welds), TH (threaded), LF/SE(Lapped Flange/Stub ends), PJ/SE, LF/SE, etc. |
| Size Range | DN 10 - DN 2000-----1/2"- 48" |
| Materials | SS304/S316L or Customized to your needs |
Why choose GNEE
The standards of flanges mainly include ANSI B16.5, EN1092-1, SABA1123, JIS B2220, DIN, GOST, UNI, AS2129, API 6A, etc. Flanges of different types and standards are suitable for different application scenarios to meet specific needs.
For more information about large-diameter flanges or other types and prices, please feel free to contact us
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Q.Do you have MOQ?
A.Depends on different ideas, Can be negotiated.The larger the quantity is, the competitive the unit price will be.
Q: What services do you provide?
A: Customized service for each customer, please feel free to contact us!
Q. Do you have a quality control system?
A.Yes, we have our own quality control laboratory.
