| 摘要 |
A valve actuator includes a stroke adjustment mechanism. An example includes a piston disposed in an actuator housing and having a range of motion or stroke between a first position and a second position. An adjustment mechanism defines a limit position of the piston, between the first and second positions. The adjustment mechanism includes a limit setting component and an adjustment component. The limit setting component is positioned to set an initial limit position to limit the range of motion of the piston to between the initial limit position and the second position. The adjustment component is moved to adjust the limit position to a position between the initial limit position and the second position to adjust the range of motion of the piston.
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