| 摘要 |
Embodiments include a seal for a knife gate valve. The seal includes a seal body that comprises a top surface and a bottom surface, an inner surface of the seal body defines a gate aperture extending from the top surface to the bottom surface; and an insert disposed within the seal body, wherein the insert extends around at least a portion of the gate aperture and the insert is more rigid than the seal body; wherein an inner surface is nonlinear with at least one projection and at least one trough. Further embodiments include a knife gate valve. The knife gate valve can include a valve body that defines a flow aperture, the valve body configured to be coupled to a conduit; a gate disposed at least partially within the valve body and a seal disposed on top of the valve body. Other embodiments are also included herein. |
