| 摘要 |
A centrifugal pump seal assembly (10) for forming a seal between an impeller (12) and its casing (14), the seal assembly (10) comprising at least one sealing member (20) supported on the casing (14) and being capable of movement to a position at which it sealingly contacts the impeller (14), the movement of the sealing member (20) being actuated by fluid pressure generated at the outlet side (18) of the casing (14), and wherein the seal is maintained by the continual fluid pressure applied to the sealing member (14) when the pump is in use. |
