HSE Safety Alert
Catastrophic Rupture of Dead-Leg Pipework The HSE have circulated a document warning Process Plant Operators of the increased risks of primary containment loss associated with dead-legs that are present in process pipe-work systems. Background “A recent failure on a UK refinery involved an 8” diameter vertical relief line, approximately 5m in length, which catastrophically failed during normal operation part way along its length, releasing approximately 75 tonnes of extremely flammable material at elevated temperature and pressure. Connected to an insulated process header and...