| 摘要 |
An air inflation device is a pass-thru vehicle tire inflation device. It ensures exact air pressure without the use of an air gauge. It works by attaching to a tire valve, and then to an existing air supply, such as those found at gas stations, and utilizing an internal pressure relief valve that is pre-set to exact PSI recommendations. This means that the inflation device will put only the amount of air needed in every tire without having to use a pressure gauge. Air is moved through an internal air chamber that is constructed of plastic or rubber tubes that runs through the nozzle to the head that attaches to the valve of the tire. A plastic valve is located on the back of the apparatus that will connect to any existing air supply. A pressure relief valve is integrated into the bottom of the nozzle that ensures that the exact PSI recommendations are maintained. The air flow device is connected against the tire valve and then to an air supply. When the correct PSI in the tire is obtained, the airflow is automatically terminated and a visual indicator is activated.
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