Lpg Vehicles and components Type Approval

ATS can test and certify specific components of automotive Vehicles using?liquefied petroleum gases (LPG)?in their propulsion system, according the UNECE Regulations?R67 and R115.

ATS, thanks to a network of accredited and recognized test laboratories, is able to perform reliability and?Type Approval?tests of Vehicles and components, in compliance with the main national and international standards or according to specific customer requests.

LPG components for use in vehicles shall be classified with regard to the?maximum operating pressure and function:

• Class 0: High pressure parts including tubes and fittings containing liquid?LPG with a pressure > 3,000 kPa.
• Class 1: High pressure parts including tubes and fittings containing liquid?LPG at vapour pressure or increased vapour pressure up to?3,000 kPa.
• Class 2: Low pressure parts including tubes and fittings containing?vaporized LPG with a maximum operating pressure below 450 kPa?and over 20 kPa above atmospheric pressure.
• Class 2A: Low pressure parts for a limited pressure range including tubes?and fittings containing vaporized LPG with a maximum operating?pressure below 120 kPa and over 20 kPa above atmospheric?pressure.
• Class 3: Shut-off valves and pressure relief valves, when operating in the?liquid phase.

LPG components designed for a maximum operating pressure below 20 kPa above atmospheric pressure are not subjected to this Regulation. A component can consist of several parts, each part classified in his own class with regard to maximum operating pressure and function:

• The container;
• The accessories fitted to the container;
• The vaporizer/pressure regulator;
• The shut-off valve;
• The gas injection device or injector or gas mixing piece;
• The gas dosage unit, either separate or combined with the gas?injection device;
• Flexible hoses;
• Filling unit;
• Non-return valve;
• Gas-tube pressure relief valve;
• Filter unit;
• Pressure or temperature sensor;
• Fuel pump;
• Service coupling;
• Electronic control unit;
• Fuel rail;
• Pressure relief device;
• ?Multi-component.

The application for Approval of specific equipment shall be submitted by the holder of the trade name or mark or by his duly accredited representative. At the request of the Technical Service responsible for conducting Approval tests, samples of the specific equipment shall be provided.

Markings

All components submitted for approval shall bear the trade name or mark of the manufacturer and the type; and for non-metallic components also the manufacturing month and year; this marking shall be clearly legible and indelible.

Testing activities

• High pressure tests;
• EMC;
• Vibration test;
• Climatic chamber.

The Authority which has granted Type Approval may at any time verify the conformity control methods applied in each production facility. The normal frequency of these verifications shall be once every year.

A circle surrounding the letter “E” followed by the distinguishing number of the country which has granted approval.