Slide valve Meaning, Definition & Usage

Definitions

1. . (a) Any valve which opens and closes a passageway by sliding over a port . (b) A particular kind of sliding valve, often used in steam engines for admitting steam to the piston and releasing it, alternately, having a cuplike cavity in its face, through which the exhaust steam passes. It is situated in the steam chest, and moved by the valve gear. It is sometimes called a D valve, a name which is also applied to a semicylindrical pipe used as a sliding valve.