Honeywell Gas Detection · Industry Applications

Background & Requirements

Class A/B liquid tank farms with frequent loading/unloading can form flammable vapor clouds in bunds. GB 50160 requires LEL and toxic gas monitoring with ESD interlocks.

Breather valves, manholes, flanges, and loading arms are typical leak sources. Peak vapor concentrations during loading require fast graded alarms.

Key Risks & Challenges

• Primary gases: Hydrocarbon vapor, H₂S, BTX, O₂
• Critical areas: Tank farm, Loading rack, Pump house, Bund area, Oily water sump
• Environment: Large open areas, vapor cloud dispersion, lightning & Ex requirements
• Leak consequences: fire/explosion, poisoning, shutdown, regulatory penalties
• Operational gaps: insufficient coverage, delayed alarms, missed calibration, data silos