| 主权项 |
1. A method of controlling fluid flow comprising:
applying a gas pressure to a gas inlet of a valve, the valve comprising:
a housing base defining a lower cavity and comprising a pinch structure within the lower cavity, a gas inlet providing external access to the lower cavity, a base fluid inlet, and a base fluid outlet;a housing cover defining an upper cavity and comprising a cover fluid inlet and a cover fluid outlet, the cover fluid inlet in fluidic communication with the base fluid outlet between the upper cavity and the lower cavity, the cover fluid outlet providing external access from the upper cavity;a diaphragm disposed between the housing base and the housing cover and fluidically separating the lower cavity from the upper cavity;a pinch plate disposed in the lower cavity and comprising a pinch point disposed opposite the pinch structure; anda pinch tube in fluidic communication between the base fluid inlet and the base fluid outlet in the lower cavity, the pinch tube extending between the pinch structure and the pinch point; and applying a fluid to the base fluid inlet. |
