| 摘要 |
<p>A valve for high temperature abrasive service having a body with an inlet connected to a valve chamber and an outlet extending through a valve seat from the valve chamber, a valve stem movable toward and away from the valve seat, a valve member mounted on the valve stem to coact with the valve seat to control flow therethrough, said valve member having an outer sleeve of abrasion resistant material which is supported by annular split springs to prevent rattling of the sleeve and to insulate it from the effects of differential expansion between it and its internal support members. The spring is generally annular in shape with its width extending axially of the sleeve and having sinusoidal waves above and below its circular axis.</p> |
