| 摘要 |
AN APPARATUS AND METHOD FOR A DIAPHRAGM VALVE INCLUDES A VALVE BODY (12) HAVING A CHAMBER (31) IN FLUID COMMUNICATION WITH A FIRST CHANNEL (20) AND A SECOND CHANNEL (24), A DIAPHRAGM (28) IS DISPOSED IN THE CHAMBER (31), AND A TAPERED SEAT MEMBER (14) IS AT LEAST PARTIALLY DISPOSED IN THE FIRST CHANNEL. A SLEEVE (16) IS COMPRESSIVELY DISPOSED IN THE SEAT MEMBER BETWEEN THE SEAT MEMBER AND THE FIRST CHANNEL TO MAINTAIN A FLUID TIGHT SEAL BETWEEN THE SEAT MEMBER AND THE FIRST CHANNEL. A VALVE MEMBER (38) IS MOVABLE TO CONTROLLABLY URGE THE DIAPHRAGM INTO AND OUT OF ENGAGEMENT WITH THE SEAT MEMBER TO CONTROL FLOW OF FLUID BETWEEN THE FIRST THE FIRST AND SECOND CHANNEL.
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