<p>The gate valve includes a valve housing (12) having a fluid conduit (14) and defining a valve seat (16) and a support surface (18), a seal plate (20), a counter plate (22) having cushion (72) vulcanized to a surface facing the support surface (18), and an actuator (34) for moving the seal plate and the counter plate between respective open and closed positions. The cushion is configured to prevent metal-to-metal contact between the counter plate and the support surface of the valve housing.</p>
申请公布号
WO2004099656(A1)
申请公布日期
2004.11.18
申请号
WO2004US13574
申请日期
2004.04.30
申请人
VARIAN, INC.;MATTE, STEPHEN, R.;YOUNG, STEVEN, P.;JOHNSON, JOSEPH, P.
发明人
MATTE, STEPHEN, R.;YOUNG, STEVEN, P.;JOHNSON, JOSEPH, P.