No matter how impressive the food or beverage packaging process you build, it’s only as strong as its weakest link. Which, in the case of packaging system design, should never be the fluid system connectors.
No matter how carefully fuel is handled, contaminants find their way into the fuel during transfer, storage or even inside the vehicle's tank. Water is an engine's primary enemy, condenses directly from the air during normal daily heating and cooling cycles. In addition to water, solid and semi-solid particulate and dissolved contamination is common.