| 摘要 |
A device for sealing a rotating shaft under wide pressure ranges from extremely high vacuum up to extremely high pressure, in which a contact surface is formed between a sealing seat of washer configuration and the end of a rotating ring fixed to the rotating shaft, or the end of a fixed ring fixed to a gland. An O-ring and spring-holding washer are installed at the back side of the sealing seat and they are pressed by a spring, or liquid pressure so that the O-ring is pressed against the sealing seat. |
