| 摘要 |
A valve assembly is disclosed which includes a first valve disc positionable against a valve seat in response to sensed temperature. The first valve disc includes a central aperture which is closeable by a second valve disc held in position by a compression spring. The second valve disc is displaced in response to liquid pressure. The valve assembly thereby provides for the independent control of flow through a passageway in response to temperature and/or pressure. The valve assembly has a particular application in conjunction with the control of bypass flow for a continuous flow liquid heater.
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