| 摘要 |
The invention provides a valve for controlling the flow of fluid, such as water in an automobile heater system, having a valve housing with inlet and outlet openings, a resilient valve seat at the outlet opening and a valve member mounted for sliding movement transversely of the resilient valve seat such that pressure of fluid within the housing will press the valve member on to its seating when the valve is closed to increase the shut-off pressure of the valve.
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