A tubing retrievable safety valve assembly and related methods are disclosed herein. The assembly includes a primary flapper, a secondary flapper, a flow tube, and a protective sleeve. The flow tube is shiftable between a downhole position that holds the primary flapper in an open position and an uphole position that allows the primary flapper to move to a closed position. The protective sleeve, when positioned in an uphole position, holds the secondary flapper valve in an open position. The protective sleeve is shiftable to a downhole position to allow the secondary flapper to move to a closed position, for example, upon failure of the primary flapper.

A valve assembly includes an inlet to receive a fluid into the valve assembly, an outlet to discharge the fluid from the valve assembly and a service stop coupled to the inlet or the outlet. The service stop can rotate relative to the inlet or the outlet to control a flow of the fluid through the inlet or the outlet. The service stop can include a first tool interface to receive a first hand tool and transfer a first torque from the first hand tool to the service stop to facilitate rotating the service stop using the first hand tool. The service stop can include a second tool interface to receive a second hand tool different from the first hand tool and configured to transfer a second torque from the second hand tool to the service stop to facilitate rotating the service stop using the second hand tool.

A valve assembly includes a first tool interface that can receive a nut driver and transfer a first torque from the nut driver to rotate a service stop. The valve assembly includes a second tool interface that can receive a screwdriver and transfer a second torque from the screwdriver to rotate the service stop.

A valve body with conduits on opposing sides having attachable pressure cover-plates and valve servicing assemblies that can be selectively installed onto the valve body while it is fully pressurized. The valve body includes simple isolators that allow access openings to be blocked and exposed that allow various style operating mechanisms and tools without the need for intermediate isolating mechanisms. Attachable subcomponents can provide pressurized fluid that is injected into the valve body from an external power source to move sand and debris away from seating surfaces while advancing and retracting various style gates.

In at least one embodiment, a valve removal (VR) system for an oilfield equipment includes a VR plug having a first surface and a second surface. The VR system includes a bushing to be removably associated with the first surface. The bushing is to extend, at least partly, beyond the second surface of the VR plug. The bushing is also to contact an inner surface of a valve of the oilfield equipment and to prevent the second surface from contacting the inner surface of the valve. The VR system includes a guiding rod to be associated with the VR plug to support guidance of the VR plug through the valve of the oilfield equipment. The guiding rod is also to be disassociated from the VR plug to support removal of the guiding rod from the valve with the VR plug remaining in the oilfield equipment.

A zone valve control system for a flow valve comprising a direct current rotary electric motor connected to a valve shaft, an electronic control system comprising a microprocessor, an electric measuring device for signaling the presence of a predetermined electrical stall current, a rectifier and a regulator to convert and regulate external AC voltage to a desired DC power output; and an electrical storage system having a total storage capacity sufficient to power the DC electric motor to move the valve between the closed and opened positions; an external sensor for signaling when a certain condition exists in an external zone; the microprocessor controlling the flow and polarity of DC current to the motor; whereby the electronic control system controls movement of a valve operably connected to the output shaft to open or close a valve to maintain a desired predetermined condition in the external zone.

Severe service industrial valves having at least one valve ball and seat that can be repaired or replaced while the valve remains connected in-line with inlet and outlet pipe lines.

A shut-off valve repair system includes a shut-off valve. The shut-off valve is fluidly coupled between a fluid supply and a plumbing fixture. Thus, the shut-off valve selectively restricts and allows a flow of a fluid to the plumbing fixture. A valve unit is selectively fluidly coupled to the shut-off valve when the shut-off valve fails. Thus, the valve unit selectively inhibits and allows the fluid to flow to the plumbing fixture.

An apparatus for replacing a first valve connected to a water main with a second valve is disclosed and methods of use. The apparatus may comprise a housing including a top, a bottom, and at least one side. The housing may further include an access opening in the bottom providing access to an interior of the housing and a plurality of openings in the at least one side. The interior of the housing may include a plurality of workspaces, the plurality of workspaces including a first workspace and a second workspace. The first workspace being positioned closer to the top of the housing than the second workspace. The apparatus may further comprise a first movable barrier coupled to the housing and covering at least a first opening of the plurality of openings in the at least one side of the housing in a first configuration and allowing access to the first workspace of the interior of the housing in a second configuration. The apparatus may further comprise a second movable barrier coupled to the housing and covering at least a second opening of the plurality of openings in the at least one side of the housing in a first configuration and allowing access to the second workspace of the interior of the housing in a second configuration. The apparatus may further comprise at least one coupler adapted to couple the housing to the water main with the first valve aligned with the access opening in the bottom of the housing. The apparatus may further comprise a movable tool at least partially positioned in the interior of the housing and at least one divider movable between a first position wherein the movable tool may move from the first workspace to the second workspace and a second position wherein the movable tool is prevented from moving from the first workspace to the second workspace.

A shut-off valve repair system includes a shut-off valve. The shut-off valve is fluidly coupled between a fluid supply and a plumbing fixture. Thus, the shut-off valve selectively restricts and allows a flow of a fluid to the plumbing fixture. A valve unit is selectively fluidly coupled to the shut-off valve when the shut-off valve fails. Thus, the valve unit selectively inhibits and allows the fluid to flow to the plumbing fixture.