ISO 19880-5:2019 pdf download – Gaseous hydrogen — Fuelling stations — Part 5: Dispenser hoses and hose assemblies.
3? Terms? and? definitions For the purpose of this document, the terms and definitions given in ISO 8330, ISO 19880-1 and the following apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: — ISO Online browsing platform: available at https:// www .iso .org/ obp — IEC Electropedia: available at http:// www .electropedia .org/ 3.1 connector matching parts (such as male and female parts) that can be put together to form a “connection” which permits the transfer of fluids, electric power, or control signals Note 1 to entry: Fittings (3.4) are a type of connector used in piping systems. Note 2 to entry: Examples of connectors commonly used in hydrogen systems are as follows: a) The fuelling nozzle “connector” mates with the receptacle “connector” on the vehicle to form the connection for transfer of compressed hydrogen between the dispenser and the vehicle, as defined in ISO 17268 for this specific application. b) The hose assemblies have connectors on each end that allow coupling (3.2) to the hoses and connection to the piping system (e.g. hose breakaway device or fuelling nozzle). c) Control systems often use electrical connectors to allow rapid and secure assembly or replacement. 3.2 coupling integrated structure of nipple and socket with end portion of a hose crimped together as shown in Figure 1 3.3 dispenser hose fuelling hose hose assembly (3.5) used for dispensing gaseous hydrogen to vehicles through a nozzle
This clause applies to newly manufactured hoses and hose assemblies for dispenser hoses connecting the dispenser to the fuelling nozzle supply port. Hoses and couplings shall meet the requirements in this document with end fittings selected by the manufacturer, customer, or testing agency as required to connect to the test equipment. Fittings shall be consistent with the requirements of the appropriate documents in the ISO 19880-series, ISO 17268, or ISO 15649. The end fitting of the hose assembly may be changed to another type that meets requirements defined above without the need to repeat the performance tests for verification of the hose assembly and its coupling as long as the hose coupling remains unchanged. Some newly manufactured hoses and hose assemblies include vent lines required by some fuelling nozzles. Nozzle vent hose assemblies shall meet the requirements of ISO 16964 or the requirements in this document and be appropriately rated for operation in the vent system that has been defined based on the nozzle manufacturer instructions and the dispenser design. Table 1 converts Hydrogen Service Levels (HSL), as defined in ISO 19880-1, to pressure levels. When using ISO 16964, the hose rating is 125 % of the working pressure which is 10 % lower than the pressure ratings in Table 1. A hose assembly shall be designated according to the pressure classes defined in Table 1 or by the manufacturer’s stated pressure rating. The information in Table 1 is taken from ISO 19880-1 (and pressure class H11 is added). The pressure rating of the hose assembly shall be equal to or above the dispenser pressure ratings. For further information regarding the relationships between pressure terms, see ISO 19880-1.
ISO 19880-5:2019 pdf download – Gaseous hydrogen — Fuelling stations — Part 5: Dispenser hoses and hose assemblies
