Barrel Unloading System provides the accuracy in flow measurement that is the only solution for checking the dip-rod measurement standard on barrels. While unloading liquid fuels from barrels, this type of system is used for protection against pilferage and short supply. This system is compatible with liquid fuels like kerosene, diesel and other solvents and for added protection, electrical fitting is provided which is weather and flame proof. Integrated with positive displacement flow sensor for accurate flow measurement, the system is also installed with a high capacity pump that makes it possible to unload entire barrel in just 10mins. For high level of accuracy, there is also attached a high capacity air separator in the system.