| 摘要 |
<p>This invention relates to valves and, more particularly to sealing valves during closure. In more detail, the valve according to the present invention comprises a valve seat member and a valve member movable towards and away from the seat to close and open the valve and a seating element made from a resilient material and attached to one of the members, the sealing element possessing. an initial deformable characteristic whereby initial closure of the valve causes the seating element to substantially conform to the shape of the other member and retain the so-conformed shape.</p> |
