Welded vs. Mechanical Joints for Rubber-Lined Pipe

Ideal for Higher Pressure Pipelines

Welded joints would have saved millions USD for this customer. Having 600# flanged connections every 50 feet dramatically added to the cost of this two mile 700psi tailings line in Mexico.

Unlike mechanical joints, welded joints have pressure ratings equal to that of the pipe wall. This prevents the need for heavy duty flanges for high-pressure pipelines. The cost of thick machined flanges and bolting is exorbitant compared to welded joints. While low pressure pipelines can realize significant savings with Joint Lock™, the construction cost of high-pressure pipelines can be reduced by more than 30%.

In addition, installation contractors and maintenance personnel are very familiar with the difficulties of obtaining a proper seal between two rubber lined surfaces when high pressure is involved. Retightening most joints after charging the line is required and keeping the joints leak-free is an ongoing maintenance concern.

Learn More About Joint Lock™ On the Goodwest Website

  1. Overview
  2. How Joint Lock™ Works
  3. Welded vs. Mechanical Joints
  4. Rubber-Lined Carbon Steel vs. Other Pipe Materials
  5. Comparison to HDPE Liner

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