| 摘要 |
A valve having a disposable portion, which comes into contact with the fluid being controlled by the valve. The disposable portion has a valving chamber and a flexible membrane, which can seal off a mouth that is located on a protrusion in the chamber. The disposable portion is held by a fixture which uses a control gas to apply pressure to the flexible membrane. The disposable portion may also have a pressure conduction chamber, which may be used to measure the flow rate of liquid through the disposable portion.
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