GB/T 44851.1-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components— Part 1:General requirements and definitions

Scope

This document specifies the general requirements and definitions for components of liquefied natural gas (LNG) fuel systems, including general requirements, electrical equipment and wiring, instructions, and markings.
This document applies to LNG vehicle fuel system components that comply with the provisions of GB/T 3730.1.
This document does not apply to the following:
a) Gas cylinders;
b) Fixed-installation gas engines;
c) Container fixing parts;
d) Electronic fuel control systems;
e) Filling ports.
Components not covered by this document shall be implemented in accordance with the relevant standards and subject to corresponding functional testing.
Unless otherwise specified, the pressures mentioned in this document are considered gauge pressures.
The working pressure of natural gas used as fuel in this document is 1.6 MPa. The pressure should be adjusted by an appropriate factor (ratio) to adapt to other working pressures. For example, a system with a working pressure of 2 MPa requires the pressure to be multiplied by 1.25.

Development Information

Same series standard

Referenced Standards

Adopt standards

Related Standards