| 摘要 |
Disclosed herein is a combination venturi check valve for introducing a composition, such as ozone, into the fluid circulation line of a swimming pool, spa, and/or other recreational body of water. The combination venturi check valve preferably includes a fluid inlet, a fluid outlet, a venturi passage for suctioning in the composition, and a bypass passage with a valve enabling compatibility with pumps having different flow rates, for example. In an aspect of the invention, the venturi and bypass passages are inline with the fluid inlet and fluid outlet. In another aspect of the invention, the venturi and bypass passages share a common wall, and/or the housing is modular and/or integrally formed. In yet another aspect of the invention, the valve automatically adjusts the flow rate of fluid through the bypass passage without requiring human intervention.
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