Abstract: An evaporated fuel treatment apparatus including a canister for adsorbing an evaporated fuel in a fuel tank, a control valve at a vapor path communicating with a fuel tank and a canister, has a dead-zone range where a flow of the evaporated fuel is blocked even if an opening angle of the control valve is increased in an open direction from zero opening angle, and allows the evaporated fuel to flow through over the dead-zone range. The control unit increases the opening angle from substantially zero to a predetermined angle in the dead-zone range and stands by prior to the opening control, and increases the opening angle from the predetermined angle upon the opening control. An output value by control unit set in the dead-zone range is compared with a detected value to detect a failure of the control valve.

Abstract: A ball valve assembly is provided. The ball valve assembly comprises a pipe section having an axial bore for enabling fluid flow therethrough in use a valve ball having an internal conduit, the valve ball being mounted within the pipe section and being for rotation with respect to the pipe section between an open position in which fluid within the axial bore may flow through the internal, conduit and a closed position in which the internal conduit is inaccessible to fluid within the axial bore; a device configured to rotate the valve ball, the device being located radially outside the axial bore; and an encapsulation positioned to receive the valve ball and having portions located radially between the pipe bore and the device configured to rotate the valve ball, such that the encapsulation prevents fluid within the axial bore from accessing the device configured to rotate the valve ball.

Abstract: The invention relates to a valve assembly which includes at least one, but typically two, balls (12,14) located along a passage and which balls can be moved between open and closed positions to selectively control the passage of fluid along the passage. The valve assembly includes at at least one end thereof a retaining assembly (32,34) which allows the effective sealing against one surface of a ball and retention of the same in position. A sealing assembly is also provided when two balls are provided, intermediate the same, which allows effective sealing to be achieved and at least one of the two trunnions which allows each of the balls to be mounted within the valve body is located only internally of the valve body. The components of the valve assembly which are located within the same can in one embodiment all be inserted into and located within the valve body from one common end.

Abstract: A pig launching and retrieval valve, which is adapted to be mounted within a pipeline for fluid flow control and for inserting and retrieving pig devices, such as round nosed cylinders, balls, scrapers and the like, for pipeline cleaning, for separation of fluids within the pipeline and for other pipeline inspection and servicing activities. The pig valve is of universal nature, having sub flanges for adaptation of special flange mounting and/or API standard flange mounting. The pig valve has a trunnion supported valve ball and pressure energized seat members that are enabled to shift laterally within respective seat recesses and thus establish self-centering with the valve ball.

Abstract: An evaporated fuel treatment apparatus including a canister for adsorbing an evaporated fuel in a fuel tank, a control valve at a vapor path communicating with a fuel tank and a canister, has a dead-zone range where a flow of the evaporated fuel is blocked even if an opening angle of the control valve is increased in an open direction from zero opening angle, and allows the evaporated fuel to flow through over the dead-zone range. The control unit increases the opening angle from substantially zero to a predetermined angle in the dead-zone range and stands by prior to the opening control, and increases the opening angle from the predetermined angle upon the opening control. An output value by control unit set in the dead-zone range is compared with a detected value to detect a failure of the control valve.

Abstract: A valve having a flow control assembly with a bore having particle-deflecting features is provided. In one embodiment, the bore of a flow control assembly of a valve includes a contour shaped to deflect particles in a fluid stream through the valve toward the center of the fluid stream and away from a sealing surface of the flow control assembly. The bore may also, in some embodiments, create a Venturi effect that cleans sealing surfaces by drawing particles away from the sealing surfaces. Additional valve systems, devices, and methods are also disclosed.

Abstract: An apparatus for controlling the flow of fluid may include a main passageway for conducting the fluid and the valve which may include a rotatable valve cavity having a ball check. The rotatable valve cavity may be rotatable with respect to the main passageway to provide at least three positions including a bypass position, a closed position and a run position. The valve may include an outlet for connection to the sight glass, and the apparatus may include a bleeder valve. The apparatus may include a sight glass which may be in fluid communication with the valve.

Abstract: A valve seat (30) for a ball valve (1) includes an annular body having a central aperture (36) defining a longitudinal flow channel, a first seating surface (38) for engaging and sealing against a corresponding portion of a fluid conduit and a longitudinally opposed second seating (40) surface for engagement with a valve ball. The first seating surface comprises a convex surface profile. The convex profile of the seat (30) allows the stresses incurred during loading from the valve ball (1) to be widely and evenly distributed throughout the structure of the seat (30).

Abstract: A valve includes a housing, a rotational body, two seat rings, a shaft integrally linked to the rotational body, and a sealing element. The rotational body is arranged rotatably in the housing and has a through-opening. The seat rings are spaced apart in the housing, each positioned against an outer surface of the rotational body to seal against leakage. The shaft extends outwardly through a housing opening. Part of the shaft has a spherical outer surface. The sealing element is positioned against the spherical outer surface, and includes a sealing lip and a support ring. The support ring has a spherical inner surface with a curvature corresponding to the spherical outer surface. The shaft is supported on the support ring at the shaft part's spherical outer surface. A flow path is defined by a housing through-opening and a rotational body through-opening, and is closed or at least partially open as determined by a rotational angle position of the rotational body about a rotational axis.

Abstract: A shaft connection is provided between a first shaft and a second shaft, the first shaft having a longitudinal axis about which the first shaft can be rotated. The first shaft has a free end which engages into a coupling part which can be connected in a rotationally fixed manner to the second shaft. The free end of the first shaft is provided with an external profile which engages releasably into an internal profile of the coupling part. The external profile and/or the internal profile are/is configured in each case as a dihedron with two side surfaces which extend substantially parallel to one another. At least one side surface of the external profile and/or one side surface of the internal profile are/is configured in a convex manner in the longitudinal direction of the first shaft and/or the second shaft.

Abstract: The invention relates to a valve assembly which includes at least one, but typically two, balls located along a passage and which balls can be moved between open and closed positions to selectively control the passage of fluid along the passage. The valve assembly includes at at least one end thereof a retaining assembly which allows the effective sealing against one surface of a ball and retention of the same in position. A sealing assembly is also provided when two balls are provided, intermediate the same, which allows effective sealing to be achieved and at least one of the two trunnions which allows each of the balls to be mounted within the valve body is located only internally of the valve body. The components of the valve assembly which are located within the same can in one embodiment all be inserted into and located within the valve body from one common end.

Abstract: A valve includes a body that has an inner cavity configured to house a ball. The ball has a hole that allows fluid to pass through the inner cavity when the hole is aligned with a longitudinal axis of the cavity and prevents the fluid to pass through the inner cavity when the hole is misaligned with the longitudinal axis of the cavity. The valve includes a fugitive emission assembly that is integral to or a unitary part of the body.

Abstract: The invention relates to a valve assembly which includes at least one, but typically two, balls located along a passage and which balls can be moved between open and closed positions to selectively control the passage of fluid along the passage. The valve assembly includes at at least one end thereof a retaining assembly which allows the effective sealing against one surface of a ball and retention of the same in position. A sealing assembly is also provided when two balls are provided, intermediate the same, which allows effective sealing to be achieved and at least one of the two trunnions which allows each of the balls to be mounted within the valve body is located only internally of the valve body. The components of the valve assembly which are located within the same can in one embodiment all be inserted into and located within the valve body from one common end.

Abstract: In at least some embodiments, an electrically controlled subsea production system includes a subsea electrical distributor that receives a high direct current (DC) voltage. The electrical distributor converts the high DC voltage to a lower DC voltage. The electrically controlled subsea production system also includes a plurality of subsea trees coupled to the subsea electrical distributor, wherein valves of the subsea trees selectively operate based on the lower DC voltage.

Abstract: A ball valve sealing ring is provided for sealing between a ball valve member a valve body. The sealing ring may comprise a ring body having a ball valve member-contacting surface and one or more valve body-contacting shoulders for contacting the valve seat. The sealing ring may comprise a resilient ring core for providing bending resistance. The resilient ring core may be at least partially conical and may have a curved cross-section with a convex side oriented towards the member-contacting surface. The cross section may be of a geometry corresponding to the outer contour of the ring body or shoulders and may have ends bent towards the member-contacting surface. The ring core may also have a plurality of apertures spaced about its circumference. The sealing ring may be elastically deflected upon contact with the valve member. Also provided is a ball valve seating arrangement comprising the aforementioned sealing ring.

Abstract: A unisex ball valve coupling includes an interface end that engages an interface end of a mating coupling half assembly. A valve of the coupling has a valve body, which has an open position in which fluid flow is permitted through the internal passage and a closed position in which the valve body closes off fluid flow through the internal passage. A valve shaft rotates with the valve body between the open position and the closed position. The valve shaft has a first surface. A blocking member is movable from a blocking position to a non-blocking position within the body portion. In the blocking position, the blocking member engages the first surface of the valve shaft to secure the valve body in the closed position and, in the non-blocking position, the blocking member does not engage the first surface of the valve shaft to permit opening of the valve.

Abstract: A valve body defines a valve stem opening. A valve stem comprises an enlarged portion greater than the valve stem opening to thereby secure the valve stem within the valve body by limiting radially outward movement of the valve stem with respect to the valve body. A rotary member comprise upper and lower bosses. Upper and lower split trunnions, with split components that can be inserted from opposite sides of the valve body, are used to rotationally support the upper and lower bosses to permit rotation of the rotary member while preventing axial movement of the axial flow path of the valve.

Abstract: A ball valve having an anti-rotational pressure plate that allows for a balanced pressure load on a valve member is provided. Additionally, the pressure plate can also fix the rotation of an adjacent flow disk, allowing for angular-orientation specific flow characterizing features to be used with the flow disk. By fixing the rotation of the flow disk, the ball valve can characterize flows using a greater variety of flow disk geometries, including angular-orientation dependent and angular-orientation independent flow disks. Further, the pressure plate could also be directly in the form of a flow disk that has anti-rotation features.

Abstract: An exemplary embodiment of a flow control valve having a secondary flow metering feature includes a rotating component which provides a primary flow control function. The rotating component rotates about an axis, and can be used to open or close the valve, typically with a 90 degree rotation of the rotating component by a handle or actuator. The valve includes a secondary flow metering function, by selectively varying the cross-sectional flow passage area through the rotating component. The rotating element may be a spherical ball, a non-spherical ball, or other component configuration which rotates about an axis, such as a conical configuration.

Abstract: The present invention is a gas safety valve utilized in combination with an existing carbon monoxide protection system that includes one or more carbon monoxide detectors to detect carbon monoxide in an area protected by the existing carbon monoxide protection system, a signal wire system, a breaker box, a gas meter box, a notification system, a primary gas line and a back-up power source. The gas safety valve is a ball valve that is integral to the primary gas line that is in communication with the carbon monoxide detectors with an electrical signal line that transmits a low voltage electronic signal to the gas safety valve when carbon monoxide is detected.

Abstract: A dual-flow valve includes an inner valve body defining a first flow path and an outer valve body circumscribing the inner valve body. The outer valve body and the inner valve body define a second flow path. The dual-flow valve includes a valve element disposed across the first flow path and the second flow path. The valve element has a first passage for selective flow alignment with the first flow path and a second passage for selective flow alignment with the second flow path. A dual flow swivel includes an upper and lower swivel body, with the lower body adapted to rotate relative to the upper body. Two separate flow paths extend through the swivel bodies allowing upwardly and downwardly directed flows through the swivel bodies.

Abstract: A ball valve having an anti-rotational pressure plate that allows for a balanced pressure load on a valve member is provided. Additionally, the pressure plate can also fix the rotation of an adjacent flow disk, allowing for angular-orientation specific flow characterizing features to be used with the flow disk. By fixing the rotation of the flow disk, the ball valve can characterize flows using a greater variety of flow disk geometries, including angular-orientation dependent and angular-orientation independent flow disks. Further, the pressure plate could also be directly in the form of a flow disk that has anti-rotation features.

Abstract: Helical spline actuators can be employed to actuate ball valves. In certain embodiments, an actuator can include a remote operated vehicle shaft, an internally splined shaft, and an externally splined shaft that can be used in combination to actuate a ball valve. In certain embodiments, an actuator can include a piston that is displaced axially and not rotated, an externally splined shaft, and an internally splined shaft that can be used in combination to actuate a ball valve. In certain embodiments, an actuator can include a piston, a spring, a spring cap, and a joint member wherein the spring cap and joint member translate axial force from the spring to the piston. In certain embodiments, an actuator can include a bearing that insulates a piston from rotational forces exerted by an externally splined shaft.

Abstract: Embodiments of the invention generally relate to a ball valve assembly for use during a cementing operation. In one aspect, a ball valve is provided. The ball valve includes a housing. The ball valve further includes a spherical body disposed within the housing. Additionally, the ball valve includes an actuating member movable relative to the housing between a first position and a second position, wherein the movement of the actuating member causes the spherical body to rotate within the housing. In another aspect, a method of using a ball valve in a cementing operation is provided.

Abstract: The invention relates to offset-type ball valves utilized in fluid control applications requiring special relationships between the amount of passing fluid and the camming motion of a spherical element; and furthermore can provide leak proof shut-off when in the closed position. My invention, due to the absence of sliding plug seals, offers very little friction, making it ideal for throttling applications as part of automatic control systems.

Abstract: The present invention relates to methods for delivering granulated material to a reactor for use in the polymerization of alpha-olefin comprising the steps of: providing a first conduit having a granulated material inlet, the conduit being operably connected to a pocket ball valve comprising at least one pocket, said pocket ball valve being operably connected to a second conduit, said second conduit being operably connected to a polymerization reactor; introducing a granulated material to the first conduit through said inlet; metering the granulated material through the pocket ball valve; and passing said material through the second conduit to the polymerization reactor. The present invention also relates to polyolefin production processes and polyolefin producing units.

Abstract: Seals, ball valve assemblies, and methods of operating ball valves assemblies are provided. The seal includes an annular jacket, a restrictor, and a spring energizer. The annular jacket includes a first annular pocket and a second annular pocket. The restrictor is disposed in the first annular pocket and is capable of restricting shrinkage of the first annular pocket to a predetermined diameter range, if the seal is exposed to a temperature within a predetermined temperature range. The spring energizer is disposed in the second annular pocket and is configured to supply a force against the annular jacket to maintain the seal against a contact surface.

Abstract: A ball valve includes a first ball clamping assembly that defines a first seat surface in contact with an exterior of the ball. A second ball clamping assembly defines a second, sealing seat surface in contact with and adapted to seal with the exterior of the ball. The second ball clamping assembly is coupled to the first ball clamping assembly to clamp the ball between the first and second seat surfaces. The second ball clamping assembly includes a seat ring holder and a seat ring carried by the seat ring holder. The seat ring of the second ball clamping assembly has a sealing seat surface. A springing member is provided between the seat ring and the seat ring holder and springingly biases the seat ring toward the ball. The seat ring holder has a shoulder that supports the seat ring against fully compressing the springing member.

Abstract: A system, in certain embodiments, includes a ball valve including a body and a ball disposed within the body. The ball valve also includes a stem disposed within an opening in the ball. The stem is removable by passage through the opening into a bore of the ball.

Abstract: A novel collection device for collection, storage and disposal of biological products, in conjunction with an improved cleansing method. Disclosed is an apparatus which includes a locking closing member handle to allow for safe transport and disposal of medical waste. Closing member allows for secure containment of medical waste and subsequent apparatus cleaning. Closing member design includes a gap between closing member and housing which facilitates device cleaning after waste disposal.

Abstract: Valve apparatus having a double-offset shaft connection are described herein. An example flow control member includes a sealing surface to move relative to a seal where the flow control member has a first axis and a second axis substantially perpendicular to the first axis and the first and second axes intersect a center of curvature of the sealing surface. The flow control member also includes an opening to receive a shaft where the opening has a third axis passing through the opening to define a pivot about which the sealing surface rotates. The third axis is offset from the first and second axes.

Abstract: A ball valve includes a valve housing that has a main passage defined therein and a valve assembly that includes a valve body, which is movable within the main passage between open and closed positions, and a valve stem that fixedly engages the valve body. A handle is disposed on the valve housing that is connected to the valve stem and is operable to rotate the valve body between the open and closed positions via the valve stem. A switch is disposed within the housing, which operatively engages the valve assembly and is configured to transmit a signal to an operator's station regarding the position of the valve body.

Abstract: A device for conveying and/or distributing fluids comprises a housing with connection portions, one or more threaded ring nuts that can be screwed to the connection portions in order to join them, a control handle and a tightening seat formed in the housing and adapted to support the control handle in a tightening position, rotatable around a tightening axis. The control handle comprises a drive portion which, in the tightening position, engages with a coupling portion of the ring nut, in a manner such that a rotation of the control handle around the tightening axis leads to a screwing or an unscrewing of the ring nut.

Abstract: The disclosed embodiments include systems and methods for energizing a ball valve seat assembly. In particular, the disclosed embodiments are directed toward energizing devices that generate linear or substantially linear energizing forces. In other words, as a seat of the ball valve translates axially with respect to a ball of the ball valve, the resulting energizing force that biases the seat ring back toward the ball is substantially directly proportional to the amount of axial translation. In certain embodiments, the linear energizing device includes an annular cantilevered v-shaped spring having a generally constant cross-sectional profile, including a pair of legs extending from a curved end.

Abstract: An upstream seat ring and an auxiliary seat ring, which improve valve's capability resistant to erosion by the fluid carrying solid particles or containing liquid drops. One end of the auxiliary seat ring passes through bore of the upstream seat ring and the other end is fixed in the pocket of the valve upstream passageway. There are many bar barriers or analogous mechanism with rectangular, tooth-like or any other geometrical shapes cross-section around the circumferential surface of their bores, which are radially concaved inward or projected outward from the circumferential surface, are longitudinally extended an overall distance from one radial end face of the seats to opposite radial end face or a distance from the radial end face next to the upstream surface of the valve closure member towards the opposite radial end face, and spaced each other radially.

Abstract: A ball valve and ball valve actuator including a unique valve stem seal and mounting connection between the ball valve and actuator. The stem seal design reduces leakage issues and significantly lengthens the life span of the ball valve and actuator and the mounting connection between the actuator. The ball valve maintains the centrality of the valve stem in connection with the actuator pinion and minimizes torque and shear forces transferred to the valve stem and hence the stem seal itself.

Abstract: An observation valve structure includes an inlet pipe joint. The inlet pipe joint has an outer threaded section at an inner end thereof, an annular guide groove in the inlet pipe joint, and guide holes at the inner end thereof. The annular guide groove communicates with the guide holes. The inlet pipe joint has a stop trough at the inner end thereof for insertion of an annular gasket. A holder is provided on top of the connector body. The holder has two threaded holes at two sides thereof close to the inlet end of the connector body. A plate is positioned on the holder by two screws which are screwed in the threaded holes. The plate has a top surface with characters which are perpendicular to each other, a position hole disposed close to the middle character, and two apertures disposed at an outer side of the other two characters for insertion of the two screws. The handle has an indication plate. The indication plate has a positioning bead hole for insertion of a positioning bead.

Abstract: A valve handle assembly for a valve having an outwardly extending rotatable stem for opening and closing the valve by rotation of the stem includes a stop plate for engaging the stem, a handle for rotating the stem by engaging and rotating the stop plate, and a cup washer for engaging the handle and retaining the stop plate and handle on the stem upon placing a nut on the stem and tightening of the nut. The handle has an internal lip for retaining the handle and the cup washer has a raised flange for engaging the lip to retain the handle upon tightening of the nut.

Abstract: Embodiments and methods are disclosed herein that relate to a valve assembly. The valve assembly includes a housing having a passage formed therethrough, and a valve ball having a through hole and disposed in the housing, in which the valve ball is rotatable between an open position that has the through hole aligned with the passage and a closed position that has the through hole misaligned with the passage. The valve assembly further includes a seat having a first tapered surface and disposed in the housing adjacent to the valve ball, wherein the seat is biased towards the valve ball, and a seat holder having a second tapered surface and disposed in the housing adjacent to the seat such that the first tapered surface of the seat is disposed adjacent to the second tapered surface of the seat holder.

Abstract: A valve includes a body, a throttling ball, and a shoe. The body includes an upstream flow passage and a downstream flow passage in fluid communication with an interior cavity of the body. The throttling ball is rotatable within the interior cavity on an axis to adjust the valve from a closed position to an open position and includes a fluid conduit extending through the throttling ball, where the fluid conduit is alignable with the upstream flow passage and the downstream flow passage. The shoe is disposed in the cavity abutting an interior surface of the cavity and includes a fluid passage there through having an inlet being alignable with the flow conduit of the throttling ball and an outlet being alignable with the downstream flow passage of the body. The interior surface of the shoe is disposed adjacent to and tracking an external surface of the throttling ball.

Abstract: The disclosed embodiments include ball valves having integrated seats. The integrated seats are included in a ball body assembly of a valve body. The ball body assembly may rotate with respect to the valve body to open or close the valve. The integrated seats may contact walls of a bore to sealingly close the valve.

Abstract: A piezoelectric valve is provided that includes a valve body includes a plug and a drive body coupled to the valve body and operable to cause the rotatable plug to rotate about a rotational axis. The drive body includes a shaft disposed along the axis, the shaft statically coupled to the plug and rotatably coupled to the drive body. The drive body also includes a rotor assembly disposed about the axis and rotatably coupled to the drive body. The drive body further includes a first piezoelectric actuator disposed about the axis and statically coupled to the drive body, the first piezoelectric actuator configured to frictionally engage an inner surface of the rotor assembly. The drive body additionally includes a second piezoelectric actuator disposed about the axis and statically coupled to the shaft, the second piezoelectric actuator configured to frictionally engage the inner surface of the rotor assembly.

Abstract: A lubricator valve assembly adapted for connection in a pipe string for use in a well includes a tubular valve body having a bore formed longitudinally therethrough; a valve seat connected to the valve body and in communication with the bore; a valve element mounted in the bore and rotatable with respect to the valve seat between positions opening and closing the bore; an operator in connection between the valve element and a hydraulic control system, the operator moving the valve element between the open and close bore positions in response to the hydraulic control system; and a system for opening the valve element upon failure of the hydraulic system.

Abstract: Disclosed herein are agglomerate blends suitable for application to a surface of a substrate by thermal spray, thereby to produce coatings, typically nanostructured coatings, that exhibit desirable properties such as erosion, abrasion, or corrosion resistance. Such coatings have many useful applications, including but not limited to an enhancement of valve reliability and durability. For example, the nanostructured coatings may be applied to valve components (i.e., balls and seats) via thermal spray processes, wherein the feedstock powder used in thermal spray may be composed, for example, of a chromium oxide composite material that meets the protective requirements against the wear and corrosion of the valve service. The thermal spray process may involve, but is not limited to, either a plasma spray or high-velocity combustion process. Through their enhanced properties, the coatings can provide superior reliability and extended life to components such as valves.

Abstract: A valve includes a body, a throttling ball, and a shoe. The body includes an upstream flow passage and a downstream flow passage in fluid communication with an interior cavity of the body. The throttling ball is rotatable within the interior cavity on an axis to adjust the valve from a closed position to an open position and includes a fluid conduit extending through the throttling ball, where the fluid conduit is alignable with the upstream flow passage and the downstream flow passage. The shoe is disposed in the cavity abutting an interior surface of the cavity and includes a fluid passage there through having an inlet being alignable with the flow conduit of the throttling ball and an outlet being alignable with the downstream flow passage of the body. The interior surface of the shoe is disposed adjacent to and tracking an external surface of the throttling ball.

Abstract: An actuator (1) is fixed on a valve (2) through a fixing joint (3) which comprises a tubular sleeve (32) on which a tightening nut (30) is screwed; the nut (30) and the sleeve (32) are provided with a conical thread connection (34, 300); by screwing the nut (30), a plurality of longitudinal prolongations (40), arranged in a crown around the axis of the sleeve (32), tightens on a fixing head (20) of the valve (2), firmly fixing the actuator (1) to the valve (2); the joint at issue provides an alternative to a flange connection, equally solid and resistant to unscrewing due to vibrations; by resting against a mechanical stop surface (24) the nut (30), being unscrewed, can act as an extractor that easily removes the joint (3) from the head (20).

Abstract: A system and method for detecting leaks using sensors to report the leak and communicate with a control unit to turn off the source of the leak once detected. A valve can be turned off in the event of a leak and embodiments employing battery power can function during loss of power such as a power blackout. Wireless sensors can be employed to detect leaks that wirelessly communicate with a control and operate solely with a designated control unit. The wireless sensors can operate using low power provided by batteries. The control panel can display alarm conditions from the sensors, including: low battery, poor signal, wet sensor, communication failure, sensor failure.

Abstract: A valve assembly includes a valve body and a bonnet. The valve body has a cylindrical access channel with adjoining at least one radial keyway. At least one coupling cavity adjoins and is out of register with the at least one radial keyway. The bonnet has a cylindrical body with at least one radially extending lug. The at least one lug is configured and sized to be accepted by the at least one radial keyway and to be housed within the at least one coupling cavity when the cylindrical body is twisted so that the at least one lug is out of register with the at least one radial keyway.

Abstract: Fluid circulation valve (10) is provided for use with a well drilling operation, so that a drill joint may be added to or removed from the drill string while continuously circulating fluid into the well. Valve housing (12, 18) has a central flow path therein, a housing side port (87), and upper and lower threaded connectors for engagement with the drill joint and the drill string, respectively. A rotatable ball (30) is positioned within the flow path in the valve housing and a port (87) in the ball is in fluid communication with the housing side port (15) when the ball is closed. A coupling (60) is provided for engaging the valve housing and sealing between an interior of the valve housing and the radially external flow line, which passes fluid into the well when a drill joint is being connecting to the upper end of the valve.

Abstract: A mounting arrangement for mounting at least one rotary valve to a drive shaft is provided, where the drive shaft includes at least one mounting hole at a predetermined position therein. The mounting arrangement may include at least one rotary valve having a curved portion and two side portions. The arrangement may also include a central passage passing through the two side portions that is shaped to allow the drive shaft to extend therethrough. The rotary valve may also include a mounting opening, opening towards the central passage at a predetermined position. The arrangement may include a mounting element extending through the mounting opening of the rotary valve into the mounting hole in the drive shaft, to mount the rotary valve to the drive shaft at a predetermined position.