| 摘要 |
According to one aspect of the present invention there is provided a valve assembly which includes: at least one valve port; at least one fluid inlet; and an outlet for connection to a fluid system; characterised in that the valve assembly includes a pressure sensitive member which is connected to the outlet, so that the size of the pressure sensitive member is capable of increasing or decreasing. In response to pressure changes within the fluid system, wherein the valve is configured so that said increases or decreases to the size of the pressure sensitive member cause the inlet and valve port to move either into or out of alignment with one another.
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