| 摘要 |
<p>The present invention relates to a constant flow control valve for fluid control and auto-control, comprising a valve body, in which is provided with a valve stem, a differential pressure sensor, a cam-type valve element and a sleeve-type valve element which main body is a sleeve. Two annular flanges are disposed in the outside of the sleeve which is also provided with a guided wing parallel to the center axes of the sleeve. The present invention has advantages such as high performance, reliability, and compact simple structure. Said valve is provided with an electric or pneumatic valve actuator for auto-control.</p> |
