| 摘要 |
A fluid flow control device including a body having a plurality of inlet passageways and a single common outlet passageway, and a plurality of solenoid valves connected to the body for controlling fluid flow from the inlet passageways to the outlet passageway. The device and the solenoid valves are resistant to corrosive liquids. The amount of residual-liquid left in any inlet passageway downstream from each solenoid valve when that valve is closed is minimized, to provide as sharp a liquid interface as is possible between each liquid leaving the outlet passageway and the next successive liquid.
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