Valve stem
Type of valve / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Valve stem?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
For the shaft which transmits motion from the outside to the inside of a valve, see Valve § Stem.
A valve stem is a self-contained valve that opens to admit gas to a chamber (such as air to inflate a tire),[1] and is then automatically closed and kept sealed by the pressure in the chamber, or a spring,[2][3] or both, to prevent the gas from escaping.[4]
This article needs additional citations for verification. (August 2009) |
There are many types of valves, and they are most commonly used on automobile, motorcycle, and bicycle tires, but also for many other applications. The most common type is the Schrader valve, but some road bicycles with skinny tires instead use the Presta valve.[5][6][7][8]