Press Release: Natural Gas Vehicle Safety: CNG Technicians Must Be Able To Tell When Fuel Containers Are Pressurized
Natural Gas Vehicle Institute (NGVi) wants to bring attention to an important requirement under NFPA 52, the installation code for natural gas vehicles. It states that any fuel container (cylinder) with a shut-off valve must also provide technicians with a way to determine whether pressure is still present in that container. This is vital to […]
Are You Confused by the Requirements of NFPA 52 and NGV 6.1?
Until recently, the primary code governing CNG fuel system installations has been NFPA 52. However, the 2023 version of NFPA 52 has introduced ANSI/CSA NGV 6.1 as a standard that also governs these installations, and, by default, inspection requirements. The team at NGVi has performed a thorough analysis and comparison of both documents, and has […]
Pressure Relief Device (PRD) Leak
November 2018 – Colchester, VT: A frozen PRD failed after the vehicle was brought into a maintenance facility where the PRD thawed, resulting in a leak and subsequent fire when the leaking gas found an open ignition source in the heating system. This information is being provided as a courtesy of NGVi and does […]
CNG Cylinder Rupture and Fire
December 2018 – Bakersfield, CA: During fueling of a CNG truck, one or more cylinders ruptured, destroying both the truck and the CNG station. The truck driver was also seriously injured. This information is being provided as a courtesy of NGVi and does not replace in-depth training or constitute legal advice of any kind. […]
Defective CNG Cylinder Valve
November 2018 – Mankato, MN: A manual cylinder valve manufactured by Luxfer failed while being opened, resulting in a gas leak, building evacuation, and finally an explosion when the leaking gas found an open ignition source in the heating system. This information is being provided as a courtesy of NGVi and does not replace in-depth […]
