45000 Liter Capacity Fuel Tank Semi Trailer With Pressure Relief Valves And Anti Static Devices

1. Overall Structure
   • A three - axle oil tank semi - trailer typically consists of a tank body and a running gear. The tank body is designed to store various types of liquids, usually petroleum products such as gasoline, diesel, or other oils. It is made of high - quality steel plates that are welded together to form a sealed container. The running gear includes three axles with wheels and tires, which provide support and mobility for the trailer.
2. Tank Body Features
   • Capacity: The capacity of the oil tank varies depending on its design and size. It can range from a few thousand liters to tens of thousands of liters. For example, a common capacity might be around 45,000 liters, which allows for efficient transportation of a significant amount of fuel.
   • Safety Devices: There are multiple safety features. The tank is usually equipped with pressure - relief valves. These valves are crucial as they prevent over - pressurization inside the tank. In case of a sudden temperature increase or other factors that could lead to a rise in internal pressure, the pressure - relief valve will open and release the excess pressure to the atmosphere in a controlled manner. Additionally, there are anti - static devices to prevent the build - up of static electricity, which could potentially ignite the flammable substances inside the tank.
   • Internal Coating: The interior of the tank is often coated with a special material. This coating serves multiple purposes. It protects the steel of the tank from corrosion caused by the chemicals in the oil. For example, some coatings can prevent the tank from rusting when transporting corrosive fuels like sulfur - containing diesel. It also helps to keep the quality of the transported oil intact by preventing any interaction between the oil and the tank material that could contaminate the oil.
3. Running Gear and Suspension
   • The three axles are usually equipped with air - ride or mechanical suspension systems. The air - ride suspension provides a smoother ride, reducing the impact of road bumps and vibrations on the tank and its contents. This is beneficial for both the safety of the transported liquid (as it reduces sloshing and the risk of spillage) and for the overall durability of the trailer. Mechanical suspension, on the other hand, is more simple and robust, and is sometimes preferred for heavy - duty applications.
   • The wheels and tires are carefully selected to support the heavy load of the full tank. They have to meet certain load - bearing and safety standards to ensure safe transportation. For example, the tires need to have a high load - index rating to handle the weight of the oil and the trailer itself.
4. Connection to the Tractor Unit
   • The three - axle oil tank semi - trailer is connected to a tractor unit through a fifth - wheel coupling. The fifth - wheel coupling allows for a pivoting connection between the tractor and the trailer, enabling the trailer to follow the turning movements of the tractor smoothly. It also provides a secure connection to transfer the pulling force from the tractor to the trailer, ensuring that the trailer can be towed safely and efficiently during transportation.

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