GMW14587

Description / Abstract: Introduction

Note: Nothing in this standard supercedes applicable laws and regulations.

Note: In the event of conflict between the English and domestic language, the English language shall take precedence.

Purpose. This standard covers the requirements for thermoplastic tubing supplied to finished dimensions and sizes in accordance with the relevant engineering drawing used exclusively for the lines of the diesel fuel system.

Applicability. Thermoplastic tubing supplied to finished dimensions and sizes in accordance with the relevant engineering drawing used exclusively for the lines of the diesel fuel system. This standard shall not be used for lines of the gasoline fuel system.

Direct contact between the fuel pipes and materials containing chlorine, as for example adhesive tapes made of polyvinyl chloride (PVC) is not allowed, because nascent chlorine resulting from high temperature decomposition may cause cracks in the polyamide 12 (PA12) outer layer.

The operating temperature range of the tubing is (-40 to +125) °C with peak temperatures up to +140 °C.

Remarks.

Application. Corresponding to the application conditions, the following two types are covered:

Type A. Flexible hot diesel fuel line.

Type B. Rigid hot diesel fuel line.

Tubing Diameter. The following tubing diameter sizes are applicable