| 摘要 |
A check valve is provided that includes a body defining a flow path between an upstream side and a downstream side. A pivot pin is disposed within the body in the flow path, and includes a longitudinal shaft and one or more bearings rotatably coupled along at least a portion of the shaft. The check valve also includes at least one valve plate rotatably coupled with at least one of the one or more bearings to regulate fluid flow through the check valve. |
