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Large Diameter Carbon Steel Pipe (CS Pipe) Connection Methods:
1. Flange Connection: A Flexible Solution
Flange connections are like attaching removable 'buttons' to pipes, especially suitable for applications requiring regular maintenance:
* Wafer Flange: Two flanges are clamped together with bolts to secure the gasket; good pressure resistance.
* Welded Flange: The flanges are welded first, then bolted; suitable for high-pressure and high-temperature environments.
* Quick-Installation Flange: With clamp design, installation speed is increased by over 50%.
Note: Flange surfaces must be kept clean. The gasket material (rubber, graphite, or metal) should be selected based on the medium characteristics.
2. Welded Connection: A Long-Lasting and Robust Choice
Welding can turn pipes into a 'solid block,' suitable for buried or stationary applications:
* Arc Welding: High versatility, requires professional welder operation.
* Gas Shielded Welding: Smoother weld seam, suitable for thin-walled pipes.
* Laser Welding: High precision, but higher equipment cost.
Before welding, the beveling must be done; after welding, visual inspection and necessary non-destructive testing are required. Preheating is necessary for welding in winter to prevent cracking.
3. Mechanical Connections: A Powerful Tool for Rapid Construction
A smart choice when you don't want to use open flames, these "pipe LEGOs" are becoming increasingly popular:
Groove Connection: Uses rubber rings and clamps, offering excellent shock resistance.
Crimp Connection: Utilizes specialized tools for one-time molding, making construction the fastest.
Threaded Connection: Commonly used for small diameters; DN500 requires special reinforcement design.
When using mechanical connections, pay attention to the flatness of the pipe ends. After installation, a pressure test is necessary to verify the seal.
Read more: How to calculate the weight of carbon steel pipes? or Seam pipe vs. Seamless pipe
Article source: https://article-realm.com/article/Business/81382-Large-Diameter-Carbon-Steel-Pipe-Connection-Guide.html
URL
https://www.hu-steel.com/product85.htmlHunan Standard Steel Co., Ltd is a leading seamless pipe and welded pipe manufacturer & supplier serving diverse industries with multiple types, grades, diameters and lengths of pipe. For more, visit: https://www.hu-steel.com
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