Neck butt welding flange

The neck butt welding flange is a flange with a conical neck and butt welding with the cylinder or pipe. It belongs to integral flange.

Because of the transition structure of taper neck and butt welding connection, the strength and stiffness of flange are strengthened, and the sealing property is better than that of flat welding flange. The disadvantage is that it needs to be manufactured by forging, which consumes more materials and costs more. It is suitable for occasions with high pressure, high temperature or high sealing requirements.

The flange with neck butt welding is not easy to deform, well sealed and widely used. The nominal pressure PN is about 16MPa.

The neck butt welding flange is connected to the pipe end. The main part is to connect pipes and pipes together. The holes on the flange can be worn through bolts, so that the two flanges are tightly connected, and the flanges are sealed with gaskets. Flange fittings refer to fittings with flange (flange or flange). It can be made by casting or threaded or welded.

Advantage:

1, connect the pipeline and maintain the sealing performance of the pipeline.

2, facilitate the replacement of a certain pipeline.

3, easy to disassemble the inspection pipeline situation.

4, facilitate the closure of a certain pipeline.