Liquids · Distribution
Tank Truck
A compartmented cargo tank that carries fuel from the terminal to stations and customers, bottom loaded at the rack and gravity unloaded at the site.
What it does
Each loading and unloading outlet has an internal self closing stop valve that can close in an emergency. If the outer actuating parts are sheared off in a crash, the outlet must stay closed and hold the load. This is how the US rule for cargo tanks reads; Canadian transport rules follow similar designs.
Basics
| Compartments | Several, each with its own outlet |
| Outlets | Internal self closing stop valves |
| Emergency closing | Within 30 seconds (US rule) |
Common failures
- Product dropped into the wrong station tank
Troubleshooting
- Symptom
- Station reports wrong product in a tank
- Likely cause
- Hose connected to the wrong fill
- What to check
- Stop sales from that tank, gauge it and sample before pumping out