What is the tool for removing a valve core?
2 Answers
The tool for removing a valve core is a valve stem screwdriver. Simply turn it counterclockwise to remove the valve core. Meaning of valve core: A valve core, also known as an air seal core, is generally used for tire inflation and to prevent air leakage. It is a cylindrical component with a hollow upper end and a solid lower end, featuring a small hole on the side of the lower end that connects to the hollow part. Types of valve cores: There are various types of valve cores, primarily including British valve pins, American valve cores, French valve cores, as well as German valve pins and Italian valve cores. In China, the commonly used valve cores follow the British standard, with British standard threads. The thread specifications include 5V1, 5V2, 6V1, 8V1, 8V2, 9V1, 10V1, 10V2, 11V1, 12V1, 13V1, 13V2, 15V1, 16V1, 17V1, 17V2, 19V1, and 20V1.
I remember when I was learning auto repair, my mentor taught me that to remove a valve core, you need a valve core wrench, also known as a valve key. This small tool is usually made of metal, with a front end featuring a notch that can latch into the groove of the valve core for rotation. The old-fashioned ones are single-headed, while modern multifunctional versions can also serve as deflation tools. Tire shops often keep this tool handy for replacing valve caps or repairing inner tubes. When purchasing, it's best to test the feel—poor-quality ones tend to slip and scratch. When working on it yourself, remember to turn counterclockwise, avoid putting too much pressure on the tire during removal, and using some rust penetrant can make the job easier. Keeping one in your toolbox allows you to quickly check the valve core in case of a slow tire leak.
