| 摘要 |
A valve closure system for rotating a rotatable actuator of a valve relative to a body of the valve to operate the valve from open to closed. The system contains a motor having a rotatable shaft, a mounting that comprises plural parts including a bracket, for associating the motor with the valve, and a coupling for coupling the motor shaft to the valve actuator to impart rotation of the motor shaft to the valve actuator to operate the valve closed. The bracket comprises a plate having a surface defining a notch that has a) an entrance at a perimeter of the plate and b) a shape enabling the plate to associate with the valve body by i) disposing the plate alongside the valve body with the notch entrance aligned with the valve body and ii) then moving the plate laterally of the valve actuator axis to cause of the valve body to pass through the notch entrance and enter the notch. One of the parts, namely a pin, is disposed on the plate and protrudes from the plate to present a dimensional interference with the valve body axially, as measured along the actuator axis, beyond the portion of the valve body disposed within the notch, for keeping the valve body disposed in the notch and preventing the plate from rotating on the valve body as the motor operates to close the valve.
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