Manual overrides for valves
First Claim
Patent Images
1. An apparatus comprising:
- a bonnet to couple to a fluid valve, the bonnet having a first opening, a second opening and a third opening, the first opening being axially aligned with the second opening to define an aperture through the bonnet, and the third opening being non-parallel relative to the first and second openings; and
a rod positioned within the aperture of the bonnet, the rod having a first end adjacent the first opening of the bonnet and a second end adjacent the second opening of the bonnet, the rod being movable within the aperture along a longitudinal axis of the rod, the rod having a recessed portion along a body of the rod between the first end and the second end, the rod being movable relative to the bonnet between at least;
a first position to prevent a supply fluid in the third opening from flowing to the second opening of the bonnet;
a second position to allow the supply fluid in the third opening to flow between the third opening and the second opening via the recessed portion of the rod, the second end of the rod extending a first distance from the second opening of the bonnet when the rod is in the second position; and
a third position where the second end of the rod extends a second distance from the second opening of the bonnet, the second distance being greater than the first distance, the rod to engage a flow control member assembly of the fluid valve when the rod is in the third position and the bonnet is coupled to the fluid valve, and the rod to disengage from the flow control member assembly when the rod is in the first and second positions.
1 Assignment
0 Petitions
Accused Products
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.
-
Citations
20 Claims
-
1. An apparatus comprising:
-
a bonnet to couple to a fluid valve, the bonnet having a first opening, a second opening and a third opening, the first opening being axially aligned with the second opening to define an aperture through the bonnet, and the third opening being non-parallel relative to the first and second openings; and a rod positioned within the aperture of the bonnet, the rod having a first end adjacent the first opening of the bonnet and a second end adjacent the second opening of the bonnet, the rod being movable within the aperture along a longitudinal axis of the rod, the rod having a recessed portion along a body of the rod between the first end and the second end, the rod being movable relative to the bonnet between at least; a first position to prevent a supply fluid in the third opening from flowing to the second opening of the bonnet; a second position to allow the supply fluid in the third opening to flow between the third opening and the second opening via the recessed portion of the rod, the second end of the rod extending a first distance from the second opening of the bonnet when the rod is in the second position; and a third position where the second end of the rod extends a second distance from the second opening of the bonnet, the second distance being greater than the first distance, the rod to engage a flow control member assembly of the fluid valve when the rod is in the third position and the bonnet is coupled to the fluid valve, and the rod to disengage from the flow control member assembly when the rod is in the first and second positions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. An apparatus, comprising:
-
a regulator body having a passageway defining an inlet and an outlet, the outlet being in fluid communication with a sensing chamber defined by the regulator body; a flow control member positioned in the passageway to control fluid flow between the inlet and the outlet; a housing coupled to the regulator body, the regulator body and the housing defining a bore; a piston disposed in the bore and coupled to the flow control member; a bonnet coupled to the housing having an aperture axially aligned with the flow control member, the bonnet having a supply inlet non-parallel relative to the aperture and in fluid communication with the aperture of the bonnet; and a rod movably coupled to the bonnet via the aperture, the rod movable between a first position to prevent fluid flow between the supply inlet and the bore, a second position to enable fluid flow between the supply inlet and the bore such that a supply fluid in the supply inlet imparts a force to the piston, and a third position to engage the piston and move the flow control member in the passageway, the rod being disengaged from the piston when the rod is in the first and second positions. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
-
-
20. An apparatus comprising:
-
means for defining a fluid flow passageway defining an inlet and an outlet, the outlet being in fluid communication with means for sensing an outlet pressure defined by the means for defining the fluid flow passageway; means for controlling a process fluid between the inlet and the outlet positioned in the means for defining the fluid flow passageway; means for actuating coupled to the means for defining the fluid flow passageway, the means for actuating having means for moving the means for controlling the process fluid; and means for housing coupled to the means for actuating, the means for housing and the means for actuating defining means for retaining a supply fluid, the means for housing having means for controlling the supply fluid between a supply inlet of the means for housing and the means for retaining the supply fluid, the means for controlling the supply fluid being slidably coupled to the means for housing, the means for controlling the supply fluid to move between a first position to prevent supply fluid flow between the supply inlet and the means for retaining the supply fluid, a second position to allow supply fluid flow between the supply inlet and the means for retaining the supply fluid, and a third position to engage the means for moving to move the means for controlling the process fluid, the means for controlling the supply fluid being disengaged from the means for moving and means for controlling the process fluid when the means for controlling the supply fluid is in the first and second positions.
-
Specification