Titanium Weld Neck Flanges

Titanium weld neck flanges is a kind of pipe fitting, which refers to the flange with neck transition and neck butt welding. Butt-welded flanges are not easy to deform, have good sealing properties, and are widely used. It has corresponding rigidity and elasticity requirements, reasonable butt welding thinning transition, large distance between weld and joint surface, no welding temperature deformation of joint surface, and relatively complex bell-mouth structure. It is suitable for pipelines with large pressure or temperature fluctuations or high-temperature, high-pressure, and low-temperature pipelines. It is generally used for pipelines with PN greater than 2.5 MPa and valve connections; it is also used for pipelines conveying expensive, flammable, and explosive media.

Ability to withstand high pressure-Since the pipe is welded to the flange neck, stress is transferred to the pipe.
When the beveled end is attached to the pipe, a groove is formed to allow for a strong weld.
The most common flange in the ASME flange series

Titanium weld neck flanges are best suited for hazardous, high-pressure applications. Weld neck flanges are easily identified by their long tapered neck. The flange is internally drilled to match the inside diameter of the pipe to ensure unrestricted flow and prevent turbulence at the joint. The tapered neck provides thicker metal at the flange joint, while the neck tapers to fit butt welded together with the pipe. This design helps transfer stress from the flange to the pipe and reduces stress concentration at the bottom of the flange connection.
Titanium weld neck flanges are ideal for critical applications involving high pressures, sub-zero and high temperatures, and conditions where fluctuations cause expansion/contraction of the pipe.