EN 17921:2024

Natural gas fuelling stations - LNG unloading connector

Publication date:   May 16, 2024

General information

60.60 Standard published   Mar 13, 2024

CEN

CEN/TC 326 Natural gas vehicles - Fuelling and operation

European Norm

43.080.10   Trucks and trailers | 75.200   Petroleum products and natural gas handling equipment

Buying

  Published

PDF - €31.61

  English  



Buy

Scope

This document specifies a harmonized unloading connector for LNG road tanker at LNG fuelling stations. This document is also applicable to LNG RID applications. While LNG is also transported by rail, European regulations are organized through the International Carriage of Dangerous Goods by Rail (RID). The same configuration as defined by this document, can be utilized. This document includes requirements for (at least):
- functional description of the LNG unloading receptacle and LNG unloading nozzle;
- technical layout description of the LNG unloading receptacle.
The technical layout description of the LNG unloading nozzle is not part of this document.
The basic functional requirement of the LNG unloading connector are as follows:
- to prevent leakage of methane during operation and in particular during disconnecting;
- easy handling, no spillage and purging with nitrogen during disconnecting.
The loading connector between the LNG road tanker and the LNG terminal is not covered by this document.
See Figure 1.

Related legislation

Legislation related to this standard

2014/94/EU

Directive 2014/94/EU of The European Parliament and of The Council of 22 October 2014 on the deployment of alternative fuels infrastructure

Life cycle

NOW

PUBLISHED
EN 17921:2024
60.60 Standard published
Mar 13, 2024