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Module 3: Low-Pressure NGV Components

Lesson 3.1: Low-Pressure Components

Overview of Light- ▪ Pressure Regulator
Duty Low-Pressure (Low-Pressure Side)
Components ▪ Pressure Gauge
▪ Fuel Lines
▪ Low-Pressure Coalescing Filter
▪ Injectors (LD)
▪ Mixer (HD)
▪ Optional Components
o Mechanical Fuel Gauge
o Fuel Shut-off Solenoid Valve

Overview of Heavy- ▪ Pressure Regulator
Duty Low-Pressure (Low-Pressure Side)
Components ▪ Pressure Gauge

▪ Fuel Lines
▪ Low-Pressure Coalescing Filter
▪ Injectors (LD)
▪ Mixer (HD)
▪ Optional Components
o Mechanical Fuel Gauge
o Fuel Shut-off Solenoid Valve

Pressure Regulator ▪
(Low-Pressure Side) Set at OEM specified pressure
for engine operation
▪ Fuel pressure specification
programmed into the ECU for
optimal engine performance
and lowest emissions

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