Page 25 - ESP Participant Guide_Neat

Module 2: High-Pressure NGV Components

High-Pressure Fuel
Flexible
Lines, Tubing and
Fuel
Fittings
Line

Rigid Fuel Line
(Stainless Steel)

▪ Carry gas from the receptacle to the cylinder, and to the high-pressure side of the
regulator
▪ Can be made of rigid or flexible material
▪ May have both materials on the same vehicle

Fittings: O-Ring Face O-Ring Face Seal Fitting Double Ferrule Fitting
Seal and Double
Ferrule
Nut

O-Ring
Back Ferrule
Front Ferrule

Fitting
Body

▪ Connect sections of high-pressure tubing to each other and/or components

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