POSITIVES ASPECTS
- LPG Underground Storage Vessels are fully covered with soil, with only the manhole and other nozzles protruding.
- The risk of BLEVE (Boiling Liquid Expanding Vapor Explosion) is eliminated, as fire is not possible beneath the tanks.
- Underground storage vessels have reduced fire case PSV loads compared to above-ground storage tanks and spheres.
- The fire water requirement for Underground storage is lower.
- The Underground protects the vessels from heat radiation from nearby fires, pressure waves from explosions, impacts from flying objects, and sabotage.
