How Often Should Valve Stems Be Replaced?
1 Answers
Because valve stems are made of rubber material, they are inevitably prone to cracking, deformation, and loss of elasticity. During daily driving, rubber valve stems undergo various deformations as they swing back and forth due to centrifugal force, which undoubtedly accelerates their aging. The typical lifespan of such rubber valve stems is about three to five years, similar to that of tires. Therefore, when replacing tires, remember to replace the valve stems as well. Below is the replacement cycle for valve stems: 1. New valve stems must be installed when replacing tires. This is because valve stems are rubber products and are subject to aging cycles. Even if the valve stems appear fine at the time of tire replacement, they may age prematurely during the new tire's usage cycle, posing safety risks. 2. Tire valve stems are one-way valves (check valves) used for inflating or deflating gases or liquids in tires and for maintaining and detecting internal pressure. 3. For tube-type tires, they are installed on the inner tube, while for tubeless tires, they are mounted on the rim. 4. Based on structure, they can be divided into two types: rubber-metal valve stems and metal valve stems with rubber gaskets. The former is used for inner tubes of passenger car tires, while the latter is mainly used for inner tubes of truck tires. The internal structure of tubeless tire valve stems is the same as that of ordinary valve stems.
