Flange joint failure regularly occurs within the Oil and Gas industry, causing millions of pounds worth of damage, therefore preventing leakages and joint failure is a main priority. In addition to carrying out regular testing procedures, consistent observations and routine maintenance is imperative to preventing failures.
https://www.htlgroup.com/general/preventing-bolted-flange-jo...

Filling and pressurizing the piping system is the only measure to ensure there is no flange joint failure.
https://www.victaulic.com/blog/reason-two-not-to-use-flanged...

The reliability of flange connections can be ensured by an active or passive approach.

The active approach is based on preventing the risks associated with flange leakage. The passive approach is based on prevention associated with minimising the consequences of flange joint failure..
https://www.pokornyindustries.com/en/article/protection-of-p...


Cause of leak
Flange joint failure
https://inis.iaea.org/collection/NCLCollectionStore/_Public/...

1981: Flange joint failure in SG valve seal (300 kg)
http://large.stanford.edu/courses/2018/ph241/rojas1/docs/anl...