Check-valves are utilized in all sorts of applications, including safety applications – most notably in process safety and hazardous materials safety. In some state fire codes, these valves may even be required in certain lines, and in some process safety RAGEGEPs, they are required. Although this incident occurred in an off-shore rig, the sight-glass involved...
$2.7 Million in Damages from Faulty Sight Glass Valves (BSEE Bulletin)
