Roper pumps are commonly found in the transportation of jet fuel at different stages of the process. They are often utilized at fuel storage terminals and supporting refineries to transfer jet fuel from storage tanks to tanker trucks, railcars, or pipelines for distribution to airports or military bases. These pumps may also be installed on refueling trucks or hydrant carts at airports to transfer jet fuel from storage tanks to aircraft. Their reliability, and ability to handle various viscosities make external gear pumps essential components in the transportation of jet fuel, ensuring reliable transfer operations throughout the supply chain.