Gasoline tank trailers are specialized trailers designed for the transportation of gasoline, a highly flammable and volatile fuel. Constructed with safety as the primary concern, these trailers feature tanks made from materials like steel or stainless steel, often with double - walled designs to prevent leaks. Advanced safety features include emergency shut - off valves, vapor - recovery systems to minimize emissions, and electrostatic - grounding devices to prevent static - induced fires. They are equipped with efficient pumping systems and precise metering devices for accurate loading and unloading of gasoline. Gasoline tank trailers play a crucial role in the gasoline supply chain, transporting fuel from refineries to distribution centers and gas stations.