Spiral welded pipe is a type of pipe made by rolling low carbon structural steel or low alloy structural steel strips into billets at a certain spiral angle, and then welding the pipe seams together. This type of welded pipe can produce large diameter steel pipes using narrower strip steel.

Advantages of spiral welding pipe
1. The same width of strip steel can produce steel pipes of different diameters, especially narrow strip steel can be used to produce large-diameter steel pipes.
2. The weld seam of spiral welded pipe is long and uniform, with stable structure, high compressive strength and strength, suitable for long-distance and large-scale transportation projects.
3. The spiral welded pipes are connected by welding or threaded connections, which are convenient and fast, greatly reducing installation time and engineering costs
4. The flow pattern of fluid in a spiral tube is different from that of a regular straight tube, with a spiral streamline. Therefore, the frictional resistance inside the spiral tube is small, and at the same flow rate, the flow resistance is smaller and the efficiency is higher than that of a regular straight pipe.
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