Titanium Weld Neck Flange

Titanium Weld Neck Flange refers to WN flange and it is a high-integrity pipe connection component. It is designed for butt-welding to a pipe. Its excellent features, such as its long, tapered hub (neck), and it has smoothly transitions from the flange to the pipe wall. The neck transfers stress away from the weld joint, so it is ideal for high pressure/temp/cyclic loads. It is popularly applied in high-pressure, high-temperature, and critical service applications.

The Weld Neck Flange is the good choice for critical piping systems because of its robust design, which ensures maximum strength and sealing integrity under the harshest industrial conditions.

• It has a Long Tapered Hub and it spreads stress evenly, reduces stress concentration at the weld, and reinforces the joint.
• It is a good Butt-Weld Connection and it requires a full-penetration weld, creating a seamless, high-strength bond between the flange and pipe.
• It has Smooth Bore. The inner diameter matches the pipe's ID, minimizing flow turbulence and erosion.
• The weld joint is far from the sealing face, protecting it from heat distortion during welding.

• Weld Neck (WN): For high pressure/temperature, best fatigue resistance.
• Slip-On (SO): Easy to install, for low-to-medium pressure.
• Blind: For sealing pipe ends.
• Threaded: For small diameters, non-weld assembly.
• Socket Weld : For small-bore, high-purity systems.
• Lap Joint: For easy alignment, paired with stub ends.
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• It is used in upstream pipelines, refineries, offshore platforms in oil & gas field;
• It usually used in boiler, steam, and feedwater lines in power generation;
• It is applied in High-pressure reactors, heat exchangers in petrochemical;
• It also can be used in transport of hazardous, toxic, or flammable fluids in chemical.

Medium & temp:

Corrosion → Gr 2; high temp/pressure → Gr 5; severe crevice → Gr.7/12.

Pressure class: Match system rating.

Size & schedule: Match pipe OD & wall thickness.

Face type: RF (general); RTJ (high pressure/Class ≥600).

Standards: ASME B16.5, ASTM B381.

Ruihang Group mainly produces Titanium and Titanium Alloy products with the complete industry chain,including smelting,forging, straightening,rolling,surface treating,testing process.We are a technology and innovation enterprise that integrates R&D, production and sales into one integrated system.

1.We have sufficient stock in the warehouse to promptly process customer orders.

2.By partnering with professional logistics companies at the port,we offer multiple delivery options to overseas customers.

3.We has obtained the EN ISO 9001:2015 and EN 9100:2018 certifications.

4.The high quality products and reputation of the company can be promised.

5.The complete after-sales service will be supplied.

Ruihang, as a direct factory of titanium products production, is specilized in R&D,production. The company is located in " China's Titanium Valley" , boosting the titanium industry in the world. If you have purchasing needs on hand, feel free to contact us: Sam.Rui@bjrh-titanium.com.

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