Segmental flanges: construction, advantages and use

Segmental flanges are an important part of industrial piping systems, especially for connecting large diameter pipes. These flanges are distinguished by their unique design and the advantages they offer.

Construction

• Segments: The flange is made up of several separate segments, usually two to four.
• Fixing: The segments shall be joined by screws or other fasteners.
• Intermediate: A special gasket is used between the segments and the pipe to ensure a tight seal.

Benefits

• Easier installation: The segmented design allows the flanges to be fitted around existing pipes.
• Less weight: Compared to solid flanges, segmented flanges are lighter, which facilitates transport and installation.
• Flexibility: Suitable for a wide range of pipe diameters and materials.
• Cost-effectiveness: Lower transport and installation costs.

Use of

• Oil and gas industry: For large diameter pipelines and offshore installations.
• Water supply systems: For trunk pipelines.
• Chemical industry: For corrosion-resistant pipelines.
• Mining sector: For pressure systems and wastewater pipelines.

Installation

1. Pipe preparation: The end of the pipe is cleaned and prepared.
2. Arrangement of segments: The segments are arranged around the pipe.
3. Inserting the gasket: A gasket shall be inserted between the pipe and flange segments.
4. Merging: The segments are joined and tightened to the specified torque.

Maintenance

• Regular check-ups: Check for signs of corrosion or leakage.
• Checking the bolts: The bolt tension shall be periodically checked and, if necessary, adjusted.
• Replacing gaskets: Replacing worn or damaged gaskets.

Conclusion

Segmented flanges are the perfect solution for flexibility and efficiency in industrial piping systems. Their use can significantly simplify the installation process and reduce costs, especially when working with large diameter pipes or complex systems.