Nitrogen has been used in automobile tires for more than 20 years. Nitrogen is used in the tires of extremely safe aircraft, space shuttle, Formula One racing car, exploration vehicle, etc. Formula One tyres are required to be filled with ultra-pure nitrogen. In recent years, the EU has made it mandatory for car tyres to be filled with nitrogen. The benefits are as follows:

1. Nitrogen is an inert gas, which is very inert. The gas molecules are larger than the oxygen molecules, and it is not easy to expand in heat and contract in cold, and the deformation range is small. The speed of its penetration into the tire wall is 30-40% slower than the air, which can keep the tire pressure stable.

2. The audio conductivity of nitrogen is low, equivalent to 1/5 of the air. The use of nitrogen can effectively reduce the noise of tires and improve the serenity of driving.

Nitrogen filling tire

3. Compared with the general high pressure air, ultra-high purity nitrogen has low thermal expansion coefficient, low thermal conductivity and slow temperature rise because it is oxygen-free and almost free of moisture and oil. It reduces the rate of heat accumulation of the tire and has the characteristics of non-combustible and non-combustion-supporting, so that the probability of a tire burst is effectively reduced.

4, nitrogen tire, moisture content is less, so the aluminum alloy steel ring and iron steel ring is not easy to rust, corrosion, the tire is not easy to oxidation.

Based on the above four points, it shows that ultra-high purity nitrogen tires can improve driving safety and comfort, and prolong the service life of tires.