The main international standards for tire valves include the following two:
- ISO 7638-1: This standard specifies dimensional and performance requirements for pneumatic connectors, including valve nipples and connectors, for use on commercial vehicles and trailers. It covers a range of commercial vehicles such as trucks and trailers. The standard ensures the interchangeability of pneumatic connectors and the reliability of the connection to ensure proper pneumatic operation in commercial vehicles.
- ISO 10473: This standard specifies requirements for the interchangeability of tire valves and air pressure sensors for cars and light commercial vehicles. Part ISO 10473-1 covers general performance requirements, while part ISO 10473-2 covers air pressure sensors with tire pressure monitoring systems (TPMS).
The key to distinguishing between the two standards is the scope of application and the type of vehicle. ISO 7638-1 applies to pneumatic connectors for commercial vehicles and trailers, mainly large commercial vehicles such as trucks and trailers. ISO 10473, on the other hand, applies to cars and light commercial vehicles, and is aimed at smaller vehicles such as sedans and minivans.
For consumers, it is important to pay attention to the type of vehicle and its use when purchasing vehicle valves, and choose the valve specification that matches their vehicle. Generally speaking, vehicle manufacturers will select the appropriate valve tips according to the requirements specified in the standards. If it is necessary to replace the valve tips or carry out repairs, it is recommended to consult a professional automotive service technician or purchase the appropriate original parts to ensure compliance with the standard requirements and to ensure the safety and performance of the vehicle.