Page 65 - ESP (CNG & LNG) Participant Guide

Module 8: LNG Vehicle Systems and Safety Practices

Primary Pressure  Activates at 230 psi
Relief Valve  Prevents tank from over-pressurization
 Self-resetting

Secondary Pressure  Activates at 350 psi
Relief Valve  Redundant pressure relief
 If red cap is missing, do not refuel

Fuel Gauge Sender  Sends signal to the fuel gauge on dash of vehicle
to indicate the quantity of LNG in the tank(s)

NGV Essentials and Safety Practices (CNG & LNG) © 2023 NGVi All Rights Reserved Page 8-6