| 摘要 |
A valve assembly for sealing and control of a fluid, gas or dry material. The valve assembly includes a seal assembly having a hollow seal, a related valve body, and an actuator assembly. The valve body has a generally circular internal cavity with the seal assembly having a generally tubular solid wall defined tip having a flexible wall portion containing a seal element used to seal against both static and dynamic forces. An actuator assembly actuates the seal assembly. The seal assembly is situated coaxially within the valve internal cavity and thereby defines an internal fluid passageway within the valve body.
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