Abstract: Provided in some embodiments is a system that includes a split gate valve including first and second gate sections coupled together and configured to move together within a cavity of the split gate valve between an open position and a closed position. The split gate valve includes a rolling actuator to reduce friction and to convert a rotational input into a linear motion to move the first and second gate sections between the open and closed positions. In other embodiments is provided a method that includes converting a rotational input into a linear motion to activate a split gate valve via a rolling actuator. The method also includes seating first and second gate sections of the split gate valve against opposite first and second seats to provide a double seal.

Abstract: A subsea system includes a subsea manifold comprising a plurality of well connections, the subsea manifold configured to be in fluid communication with a plurality of wells through the plurality of well connections and a plurality of valves, each corresponding to one of the plurality of well connections, to control fluid flow through the corresponding well connections. The subsea system further includes a valve actuator comprising a transmission and a motor, the valve actuator coupled to at least one of the plurality of valves to move the valve between an open position and a closed position and a remote controller configured to communicate with and control the valve actuator.

Abstract: A valve actuator comprising a screw member coupled to a valve stem and a sleeve such that rotation of the sleeve causes translation of the valve stem. The sleeve has a first end that is rotatably coupled to a housing that is fixably coupled to a valve body and a second end that projects out of the housing. The valve stem is partially disposed within the sleeve and extends into the valve body. A transmission is coupled to the housing and engaged with the sleeve. A motor is coupled to the transmission so that operation of the motor causes rotation of the sleeve.

Abstract: A multi-barrier seal system, including, a first seal assembly configured to provide a first sealing barrier between an auxiliary line and a mineral extraction system, and a second seal assembly configured to provide a second sealing barrier between the auxiliary line and the mineral extraction system, wherein the second seal assembly is configured to shear through the auxiliary line.

Abstract: A system, including a first flow control element configured to couple to a stem, and a second flow control element coupled to the first flow control element, wherein the first and second flow control elements are configured to expand relative to one another to create a seal in a closed position between a chamber and a flow path in a valve body, and wherein the first and second flow control elements are configured to enable fluid flow between the chamber and the flow path in an open position.

Abstract: Embodiments of the present disclosure are directed toward a second pneumatic actuator configured to couple to a gate valve, wherein the second pneumatic actuator is configured to apply a supplemental force to a gate of the gate valve, wherein the supplemental force supplements an actuating force of a first actuator of the gate valve.

Abstract: Embodiments of the present disclosure are directed toward a gate valve seal ring comprising a seat holder comprising a recess and a seat ring disposed within the recess, wherein the seat ring comprises a corrosion resistant and wear resistant material.

Abstract: A system includes a split gate valve with first and second gate sections coupled together and configured to move together within a cavity of the split gate valve between an open position and a closed position. The split gate valve includes a rolling actuator to reduce friction and to convert a rotational input into a linear motion to move the first and second gate sections between the open and closed positions. The split gate valve also includes at least one expansion bar configured to bias the first and second gate sections from one another to seal against opposite seats of the split gate valve, wherein each expansion bar includes a spring mechanism configured to compress upon moving the first and second gate sections into and beyond the closed position to prevent buckling of the expansion bar.

Abstract: A system includes a split gate valve with first and second gate sections coupled together and configured to move together within a cavity of the split gate valve between an open position and a closed position. The split gate valve includes a rolling actuator to reduce friction and to convert a rotational input into a linear motion to move the first and second gate sections between the open and closed positions. The split gate valve also includes at least one expansion bar configured to bias the first and second gate sections from one another to seal against opposite seats of the split gate valve, wherein each expansion bar includes a spring mechanism configured to compress upon moving the first and second gate sections into and beyond the closed position to prevent buckling of the expansion bar.

Abstract: Provided is a diverter valve including a housing assembly having a plurality of ports and a drum assembly disposed in the housing. The drum assembly including a plurality of passages for selectively coupling the ports, wherein an axial position of the drum assembly with respect to the ports determines which ports are active and which parts are dormant.

Abstract: A multi-barrier seal system, including, a first seal assembly configured to provide a first sealing barrier between an auxiliary line and a mineral extraction system, and a second seal assembly configured to provide a second sealing barrier between the auxiliary line and the mineral extraction system, wherein the second seal assembly is configured to shear through the auxiliary line.

Abstract: A system includes a split gate valve with first and second gate sections coupled together and configured to move together within a cavity of the split gate valve between an open position and a closed position. The split gate valve includes a rolling actuator to reduce friction and to convert a rotational input into a linear motion to move the first and second gate sections between the open and closed positions. The split gate valve also includes at least one expansion bar configured to bias the first and second gate sections from one another to seal against opposite seats of the split gate valve, wherein each expansion bar includes a spring mechanism configured to compress upon moving the first and second gate sections into and beyond the closed position to prevent buckling of the expansion bar.

Abstract: Provided in some embodiments is a system that includes a split gate valve including first and second gate sections coupled together and configured to move together within a cavity of the split gate valve between an open position and a closed position. The split gate valve includes a rolling actuator to reduce friction and to convert a rotational input into a linear motion to move the first and second gate sections between the open and closed positions. In other embodiments is provided a method that includes converting a rotational input into a linear motion to activate a split gate valve via a rolling actuator. The method also includes seating first and second gate sections of the split gate valve against opposite first and second seats to provide a double seal.

Abstract: A valve, in certain embodiments, includes a body having a flow path, a stem, a flow element coupled to the stem, wherein the flow element interfaces with the flow path to regulate flow of a fluid through the flow path, and a force sensor coupled to the stem and configured to indicate an amount of force exerted on the stem.

Abstract: A valve actuator comprising a screw member coupled to a valve stem and a sleeve such that rotation of the sleeve causes translation of the valve stem. The sleeve has a first end that is rotatably coupled to a housing that is fixably coupled to a valve body and a second end that projects out of the housing. The valve stem is partially disposed within the sleeve and extends into the valve body. A transmission is coupled to the housing and engaged with the sleeve. A motor is coupled to the transmission so that operation of the motor causes rotation of the sleeve.

Abstract: Provided is a diverter valve including a housing assembly having a plurality of ports and a drum assembly disposed in the housing. The drum assembly including a plurality of passages for selectively coupling the ports, wherein an axial position of the drum assembly with respect to the ports determines which ports are active and which parts are dormant.

Abstract: The shearing gate valve includes a gate reciprocably mounted between opposing seat rings. The gate has an opening which aligns with bores in the mating seat rings. The opening in the gate and the bores of the seat rings each have a cutting recess. The cutting recess in each mouth of the opening of the gate is formed by a counterbore which is filled with a weld overlay material that bonds with the material of the gate. A layer of hard facing material covers the sides of the gate and also extends over the bond formed between the gate and weld overlay material but does not completely cover the weld overlay material thus forming the cutting recess. The cutting recess has a depth equal to the thickness of the hard facing material. The weld overlay material is hard so as to prevent the formation of an upset which will score or gall the sealing surfaces between the gate and seat rings.