Petrol filling stations - Part 4: Safety requirements for construction and performance of swivels for use on metering pumps and dispensers
This European Standard specifies safety requirements for the construction and performance of swivels to be fitted to delivery hose assemblies on metering pumps and dispensers installed at filling stations and used to dispense liquid fuels into the tanks of motor vehicles, boats and light aircraft and into portable containers at flow rates up to 200 l min-1. It pays particular attention to electrical, mechanical and hydraulic characteristics of swivels.
The requirements apply to swivels at ambient temperatures from –20 °C to +40 °C with the possibility for an extended temperature range.
This European Standard applies mainly to hazards related to the ignition of liquid fuels being dispensed or their vapour. This European Standard also addresses electrical and mechanical hazards of swivels.
This European Standard is not applicable to swivels for the dispensing of any compressed gas.
NOTE 1 This European Standard does not apply to equipment for use with liquefied petroleum gas (LPG) or liquefied natural gas (LNG) or compressed natural gas (CNG).
NOTE 2 Fuels other than of Explosion Group IIA are excluded from this European Standard.