Tire valve is a one-way valve (check valve) used to inflate and deflate tires with gas or liquid, and can maintain and detect internal pressure.
Tube tires are mounted on the inner tube, and tubeless tires are mounted on the rim.
According to the structure, it can be divided into two types: rubber metal valve and metal valve with rubber pad. The former is used for car tire inner tubes, while the latter is mainly used for heavy duty tire inner tubes. The internal structure of a tubeless tire valve is the same as a normal valve.