How To Connect Stainless Steel Pipe

The common stainless steel pipe connection methods mainly include extrusion connection, the Thread Type Connection, flange connection, the Welding Type Connection, etc.

1. Extrusion connection

Insert the spigot into the bellmouth (compression type connection, ring compression type connection, double compression type / double extrusion type connection is to insert the pipe into the pipe fitting, plug in compression type connection is to insert the pipe fitting into the pipe fitting). When inserting, the central axis of the spigot shall be aligned with the central axis of the bellmouth. After inserting, use special tools to squeeze the connection, clamp the pipe fitting on the pipe, and achieve the connection through the sealing ring water stop Effect. The use of extrusion connection method to realize thin-walled pipes and pipe fittings, save materials, the pipes are not removable, and the quality of pipes is required to be high.

2. The Thread Type Connection

Also known as screw connection, it is through the internal and external thread to connect the pipeline and pipeline, pipeline and valve. This connection is mainly used for the connection of steel pipe, copper pipe and high-pressure pipe. Threaded connection is a widely used removable fixed connection, which is easy to install, stable and reliable in quality.

3. Flange connection

Flange connection is a kind of connection mode that two pipes or pipe fittings are respectively fixed on a flange plate, then a flange pad is added between the two flange plates, and finally the two flange plates are tightened with bolts to make them closely combined.

4. The Welding Type Connection

Argon arc welding is generally used to seal the bottom of stainless steel pipe, manual arc welding is used to cover the surface, and argon is filled into the pipe for protection, so that the inner weld of the pipe does not produce oxidation. For the stainless steel pipe with smaller diameter, it can also be directly sealed with argon arc welding. After the stainless steel pipe is welded, the weld surface shall be protected, such as applying acid pickling passivation paste. According to different connection forms, welding can be divided into butt welding and socket welding.