ISO 20766-19:2025
ISO 20766-19:2025 Road vehicles - Liquefied petroleum gas (LPG) fuel system components - Part 19: Gas-tube pressure relief valves
standard byInternational Organization for Standardization , 03/01/2025
standard byInternational Organization for Standardization , 03/01/2025
This document specifies general requirements and definitions of liquefied petroleum gas fuel (LPG) components, intended for use on the types of motor vehicles as defined in ISO3833. It also provides general design principles and specifies requirements for instructions and marking.
u000bThis document is applicable to vehicles (mono-fuel, bi-fuel or dual-fuel applications) that use gaseous fuels in accordance with ISO9162. It is not applicable to:
u000b— fuel containers;
u000b— stationary gas engines;
u000b— container mounting hardware;
u000b— electronic fuel management;
u000b— refuelling receptacles.
u000bMiscellaneous components not specifically addressed in this document can be examined for conformity with the criteria of any applicable part of the ISO20766 series, including testing to the appropriate functional tests.
u000bAll references to pressure in this document are considered gauge pressures unless otherwise specified.
u000bThis document applies to devices that have a service pressure in the range of 110kPa (butane rich at 20°C) and 840kPa (propane at 20°C). Other service pressures can be accommodated by adjusting the pressure by the appropriate factor (ratio).