What are the common malfunctions and problems with flanges?

Flange is a common pipeline connection method with a high frequency of use, but it is inevitable that some faults will occur during use. Below, we will introduce common faults and solutions of flanges.

1. Flange leakage
Flange leakage is one of the most common faults in flange connections. The reasons for flange leakage may be damage to the flange sealing surface, loosening of flange bolts, or deformation of the pipeline at the flange connection.
Solution: Check if the flange sealing surface is damaged, and if there is any damage, replace the sealing surface; Check if the flange bolts are loose, and if they are loose, tighten them again; Check if the pipeline is deformed and repair it if necessary.

2. Broken flange bolts
The fracture of flange bolts is one of the more serious faults in flange connections. The cause of flange bolt fracture may be poor quality of bolt material, excessive tightening or looseness of bolts, etc.
Solution: Replace high-quality bolts and adjust the tightness of the bolts to achieve the appropriate tightness.

3. Leakage at flange connection
Leakage at the flange connection is one of the common faults in flange connections. The reasons for air leakage at the flange connection may be damage to the flange sealing surface, loosening of flange bolts, or deformation of the pipeline at the flange connection.
Solution: Check if the flange sealing surface is damaged, and if there is any damage, replace the sealing surface; Check if the flange bolts are loose, and if they are loose, tighten them again; Check if the pipeline is deformed and repair it if necessary.

4. Rust on flange connections
Rust at the flange connection is one of the common faults in flange connections. The reasons for rust at the flange connection may be long-term exposure of the pipeline to humid environments, poor quality of pipeline materials, or long-term failure to maintain the pipeline.
Solution: Clean and rust treat the pipeline, and regularly maintain and inspect it.

Various faults may occur during the use of flange connections, and we need to promptly detect and resolve these faults to ensure the normal use of flange connections


Post time: Jun-08-2023