| 摘要 |
The present subject matter relates to check valve apparatuses and methods. In particular, the present subject matter relates to a flow control device that can be incorporated into a check valve. The flow control device can include a valve seat configured for positioning within an inlet of a check valve, the valve seat defining an opening, a plurality of flow routing vanes at least partially traversing the opening, and a disk movable between a first position and a second position in response to a fluid pressure. When the disk is in the first position, the disk blocks the opening of the valve seat, and when the disk is in the second position, the opening is substantially unobstructed. The flow routing vanes can function to smooth the flow of fluid into the valve, thereby reducing pressure drop, noise, erosion, corrosion, vibration, and cavitations.
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