Fill Valve and Fill Line

The fill valve receives fuel from the fill nozzle at the CNG dispensing station. The fill valve seals to the dispensing nozzle with an O-ring. Before re-fueling this O-ring must be inspected and replaced if missing or damaged. The fill valve contains an internal filter element designed to trap contaminants. This filter must be periodically inspected and cleaned. The fill valve is mounted to the rear bumper. Refer to the supplement for fuel tank filling procedures.

The fill line is constructed of 3/8 in. flexible, steel-braided hose protected by a plastic cover. The fill line connects the fill valve to a line union (check valve) and then to the fuel tank and is sealed at all connections with an O-ring.

In the event of fill valve leakage, the line union check valve is designed to minimize the amount of CNG fuel leakage. The check valve must be installed with the flow arrow pointing towards the HPL.