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Double-Wall Fuel Tank Leak Detection Systems
Pressure/Vacuum Monitoring
The interstitial space between walls is maintained at specific pressure. Leaks disrupt this balance, triggering pressure sensors that activate audible/visual alarms.
Key Components:
• Sealed interstitial space
• High-sensitivity pressure sensors
• Programmable threshold detection
Liquid-Sensitive Sensors
Specialized sensors detect fuel presence through changes in conductivity or capacitance when fuel contacts them.
Detection Methods:
• Chemical property recognition
• Physical property changes
• Instant control panel alerts
Fiber-Optic Technology
Advanced systems use fiber-optic cables that detect light transmission changes when fuel leaks into the interstitial space.
Advantages:
• High sensitivity
• Precise leak location capability
• Continuous monitoring
Modern double-wall fuel tanks employ multiple detection methods, from pressure monitoring to fiber-optic sensing, ensuring early leak detection and environmental protection.