| 摘要 |
<p>PURPOSE: To attenuate the oscillation of a valve body by exposing a part body fitted to the valve body through a bar to a stream so as to operate force directed downward by air flowing through an air flowing in opening. CONSTITUTION: The part body 7 exposed to the steam is fitted through a conical added part 5 and the bar 8 under the valve body 2, and an atmosphere flow-in opening 10 is formed on a casing 1. Air flowing in through the opening 10 reaches a conductor 11 under negative pressure through an air guiding cylinder 9 to attenuate the negative pressure of this conductor, and the rising movement of the valve body 2 is braked by the part body 7 within an air steam.</p> |
