MANUAL OVERRIDES FOR VALVES
First Claim
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1. An apparatus, comprising:
- an actuator to move a stem of a valve, the actuator including a housing defining a bore and a piston disposed in the bore;
a rod movably coupled to the housing to extend into the bore, wherein the piston is to be movable via a fluid to flow into the bore or the rod; and
a lock to hold the rod in a first position on the housing where the rod is to disable a supply of the fluid to the bore.
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Abstract
Manual overrides for valves are disclosed herein. An example apparatus includes an actuator to move a stem of a valve. The actuator includes a housing defining a bore and a piston disposed in the bore. The example apparatus also includes a rod movably coupled to the housing to extend into the bore, and the piston is to be movable via the rod or a fluid to flow into the bore. The example apparatus also includes a lock to hold the rod in a first position on the housing where the rod is to disable a supply of the fluid to the bore.
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Citations
20 Claims
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1. An apparatus, comprising:
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an actuator to move a stem of a valve, the actuator including a housing defining a bore and a piston disposed in the bore; a rod movably coupled to the housing to extend into the bore, wherein the piston is to be movable via a fluid to flow into the bore or the rod; and a lock to hold the rod in a first position on the housing where the rod is to disable a supply of the fluid to the bore. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus, comprising:
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a housing defining a bore and an inlet fluidly coupled to the bore; a piston disposed in the bore and coupled to a stem of a valve; and a choke movably coupled to the housing, the choke to extend through a portion of the housing and into the bore, wherein adjusting a position of the choke enables the choke to prevent fluid flow from the inlet to the bore or adjust a position of the piston. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus, comprising:
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means for moving a stem of a valve, the means for moving disposed in a bore; means for actuating the means for moving, wherein the means for moving is to be movable via a fluid to flow into the bore or the means for actuating; and means for holding the means for actuating in a position relative to the bore where the means for actuating is to disable a supply of the fluid to the bore.
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Specification