MANIFOLD FOR A DIRECTIONAL CONTROL VALVE FOR A VALVE ACTUATOR
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United States of America Patent
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Dec 7, 2017
app pub date -
Jun 6, 2017
filing date -
Jun 6, 2016
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Abstract
A valve actuator control system, and a related manifold. The control system includes a pneumatic directional valve operable to move the actuator. The manifold has multiple internal channels and is mountable to the pneumatic directional valve in alternative connections so that one internal channel of the manifold is active and the others are non-active, so that the manifold and pneumatic directional valve can provide operability of the actuator in a plurality of different fail modes.
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