| 摘要 |
A three valve manifold having body, flange and web sections has primary flow blocking and crossover valves operatively disposed in the body. Vent ports are disposed in a rear surface of the body, and vent port control valves that controllably direct and selectively block fluid flow from primary flow passages disposed within the manifold, to the vent ports. The vent port control valves are operatively disposed in the web of the manifold. Positioning the vent port control valves in the web of the manifold enables the thickness of the flange to be reduced to that required to only provide an mounting surface and fluid transfer ports.
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