Butt weld ring loose flange is a movable flange piece, which is generally matched with water supply and drainage fittings. When the factory leaves the factory, there is a flange at each end of the expansion joint, which is directly connected to the pipeline and equipment in the project with bolts.

effect:

The purpose of using butt weld ring loose flange is generally to save material. Its structure is divided into two parts. One end of the pipe is connected to the pipe, and the other end is made of a butt weld ring. The flange is made of low-grade materials, while the pipe part uses the same material as the pipe to save material.

advantage:

save costs. When the pipe material is special and expensive, the cost of welding the flange of the same material is high.

It is inconvenient for welding or processing or requires high strength. Such as plastic pipes, glass steel pipes and the like.

Easy to construct. For example, it is not easy to align the flange bolt holes during connection, or prevent the flange bolt holes of the equipment from being changed in the future.

shortcoming:

Withstand low pressure.

Low strength at the weld ring (especially when the thickness is less than 3mm)