Abstract: Disclosed is a valve, comprising a valve body, an inner valve seat and a valve core. The valve core is mounted in the valve body. The inner valve seat is mounted in the valve body. The inner valve seat has a annular body and a seal structure extending inwards from an inner peripheral surface of the annular body, wherein the seal structure is arranged in such a manner that the seal structure seals a gap formed among the valve body, the inner valve seat and the valve core when the valve is in a closed state. After the valve is used for discharging liquid, the amount of liquid residue inside the valve can be greatly reduced.

Abstract: A top-entry trunnion ball valve comprising: a housing formed having first and second fluid flow ports, a cavity through which fluid flows when the valve is open and a top opening through which the cavity is accessible; a ball housed in the cavity formed having a through hole for passage of fluid and rotatable between open and closed positions; a cartridge in the cavity sealed to the housing and comprising a seat sealed to the ball; wherein the cartridge and top opening are sized to enable the cartridge to be inserted into and sealed to the housing and removed from the cavity via the top opening.

Abstract: An angle ball valve includes a housing, valve chamber, and first and second fluid ports. A hollow ball is disposed within the valve chamber and in abutment to sealing elements, and includes a first surface opening and second surface opening and is rotatable within the valve chamber about an axis of ball rotation between open and closed ball valve positions. A first sensor orifice is formed within the valve housing coaxial with the axis of ball rotation and receives a sensor, which extends into a second sensor orifice of the ball. A valve stem is operatively connected to the ball and extends along the axis of ball rotation opposite the first sensor orifice. The valve stem rotates the ball into and out of open and closed ball valve positions.

Abstract: A receptacle for conveying fluid is disclosed. The receptacle may include a main body, a spring retainer, a valve seat assembly, a poppet, and a spring. The main body defines an inlet and an outlet. The spring retainer is disposed in the main body and removable from the main body via the inlet. The valve seat assembly is disposed in the main body and removable from the main body via the inlet. The poppet is slidably engaged with the spring retainer between a closed position and an open position and is engageable with the valve seat assembly. The spring is engaged with the spring retainer and with the poppet to urge the poppet against the valve seat assembly.

Abstract: A ball valve assembly includes a duct with a central passage for the flow of fluids. A ball valve is rotatably mounted within the duct. The ball valve has a through bore selectively alignable in an operational position with the central passage to allow flow through the valve assembly. A lateral opening is provided in the duct. A handle attached to the ball valve extends through the lateral opening such that it is accessible from outside the duct to allow rotation of the ball valve. The ball valve, handle and duct are sized so that the ball valve and handle together are insertable into one end of the duct in a first orientation to an intermediate position, from which position and orientation the ball valve and handle together can be manipulated without the ball valve leaving the duct to a final position with a second orientation in which the handle extends out through the lateral opening and the ball valve is in its operational position.

Abstract: A control device for a fluid is described, having a housing, a first opening, a second opening, a channel running from the first to the second opening and a movable control element, which is pivotable between a closed position and an open position. The first opening of the control device forms an assembly opening, through which the control element can be installed in the housing.

Abstract: A system includes a ball valve. The ball valve includes a housing, a ball, and a first valve seat assembly. The housing includes a chamber, a first fluid passage intersecting the chamber, and a second fluid passage intersecting the chamber. The ball is disposed in the chamber and is configured to control fluid flow between the first and second fluid passages. The first valve seat assembly is disposed between the ball and the housing. The first valve seat assembly includes a first seat configured to seat against the ball both above and below a pressure threshold, and a second seat configured to seat against the ball only above the pressure threshold, wherein the second seat has a coefficient of friction that is lower than the first seat.

Abstract: A valve member including a pair of substantially hemispherical shell components fixed together to form a substantially spherical, hollow shell. The shell has an exterior surface, an interior surface, and two opposing annular openings. The valve member further includes a sleeve having a first end and a second end. The sleeve is positioned between the annular openings of the shell to define a central bore between the annular passages. The sleeve is in contact with and fixed to the shell solely at the first end and the second end thereof in a way that a continuous void is defined between the sleeve and the interior surface of the shell from the first end of sleeve to the second end of the sleeve.

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: In the specification and drawings a valve is described and shown with a lower valve seat; an upper valve seat; a bracket, the bracket having a first tongue engaged with the upper valve seat; a valve ball located between the lower valve seat and the upper valve seat, the lower valve seat, the valve ball, and the upper valve seat being located within the bracket; and a ring located about the upper valve seat, the ring having a first recessed portion and a first extended portion, the ring having a first ring position in which the first tongue is unobstructed by the first recessed portion and a second ring position in which the first tongue is obstructed by the first extended portion, the ring being rotatable between the first ring position and the second ring position.

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 segment valve for controlling fluid flow in a piping, includes a valve housing with a valve seat disposed therein, a tubular bearing body fitted to an upper axial opening of the valve housing, a rotating spindle inserted through the bearing body into the valve housing, a tightening sleeve unit sleeved on the spindle to ensure full engagement of the spindle with the bearing body, a journal member inserted through a lower axial opening into the valve housing, and a valve body having upper and lower lugs coaxially fitted to the spindle and the journal member, and a spherical segment having a convex outer spherical surface and rotated with the spindle between a fully closed position, where the spherical surface is in sealing contact with the valve seat, and a fully opened position to permit a full fluid communication of the valve housing.

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: An axial locking of a valve shaft to be non-turnably attached to a closing element of a valve, an end of the shaft to be attached to the closing element being machined on two opposite sides in order to fit into a pivot recess formed in the outer perimeter of the closing element. A collar part is provided to be fitted to the end of the shaft and to be turned into a locking position, one of the end surfaces of the main part of said collar part having at least one axial projection that fits into the pivot recess of the closing element of the valve when the collar part is in the locking position and the end of the shaft is positioned into the pivot recess of the closing element.

Abstract: A trunnion type ball valve having valve seats that are laterally moveable within seat recesses of the valve and establish sealing engagement with a valve ball member that is trunnion supported for rotational movement between open and closed positions. The valve seat members are self-centering for optimum sealing engagement with the spherical sealing surface of the ball member. The internal geometry of the seat assemblies are designed to permit optimum flow through the valve mechanism even under circumstances where the seat members are located in laterally off-center relation with respect to the centerline of the flow passages due to self-centering seat movement. The ball valve is readily adapted for fire-safe application via the use of heat resistant seals and metal-to-metal sealing of components to prevent or minimize leakage in the event of seal destruction or degradation by excess heat.

Abstract: A ball valve assembly comprises a housing with ball valve rotatably disposed in a valve chamber in the flow passage. The ball valve is rotatable between open and closed positions by a valve stem that is connected to the ball valve at one end. The ball valve has an open ended slot in which the end of the stem is received. During assembly the stem may be inserted into the housing first and then the ball valve introduced into the housing with the slot facing the stem and then moved in the direction of the slot so that that the stem is received in the slot. The arrangement enables the conventional bonnet in a ball valve assembly to be eliminated and therefore provides for a compact design.

Abstract: A ball valve has a ball with resilient, opposed facing spaced-apart locking arms which engage a stem having outwardly projecting flanges to allow the stem to be inserted externally into the valve body and locked to the opposed locking arms of the ball. In one embodiment, the stem and ball include an interengaging keyway and correspondingly shaped rib for positive coupling of the ball to the stem.

Abstract: There is provided a seat assembly for use in a downhole oil pump ball valve. The assembly includes a seat, a seat rest, and a ball. The seat is used for seating the ball of the ball valve. The seat has an outer wall and a top surface and a curved shoulder surface between the outer wall and the top surface. The seat rest receives the seat, and the seat rest has a curved corner surface so that when the seat is assembled with the seat rest the seat and seat rest are in substantial contact at all points of the curved shoulder surface and the curved corner surface.

Abstract: A kit of parts for configuring and assembling a shut-off valve in the field has a valve body, a plurality of connection fittings, and a plurality of gaskets. The connection fittings each have a first end with a common configuration adapted to fit into any of three ports provided in the valve body. The connection fittings have second ends with different configurations adapted to connect with any of a variety of conduit configurations which may be encountered in the field.

Abstract: A ball valve has a ball with resilient, opposed facing spaced-apart locking arms which engage a stem having outwardly projecting flanges to allow the stem to be inserted externally into the valve body and snap-locked to the resilient opposed locking arms of the ball. In one embodiment, the stem includes a breakaway groove to prevent over torquing of the stem. In another embodiment, a retainer carrier for the ball includes slots for receiving integrally formed projection tabs on the underside of the valve handle which are spaced and sized to interfit with the slots of the threaded retainer carrier such that, if ball or seal replacement becomes necessary, the valve handle itself can serve as a removal tool for the retainer carrier.

Abstract: A two piece side split ball valve with internal corrosion resistant plastic lining (4, 5), with an integral actuator mounting flange (30) for easier, cheaper & direct mounting of any standard actuator, with a single piece ball-stem (3, 7) for accurate control of the rotation & positioning of the ball (3), with energized seat rings (8, 9) for bubble tight shut-off and with means (14, 15) to prevent cold flow of lining sealing faces (16, 17) of the two body halves (1, 2) having metal to metal contact.

Abstract: A bearing retainer for a valve having an internally mounted stem and valve member with a trunnion and a bearing positioned thereabout is disclosed. The bearing retainer has a retainer body having a bearing receiving opening extending from a first side to an opposed second side and a stem receiving slot formed in the first side thereof in open communication with the bearing receiving opening. The retainer body is disposable about the bearing, and the retainer body is configured such that the retainer body is rotatable about the trunnion upon the valve member, the bearing, and the bearing retainer being positioned in the valve chamber with the stem engaged with the valve member.

Abstract: A ball valve assembly having two end bodies selectively detachable from each other with each end body defining a fluid conveying bore is provided. A rotatable ball valve element is disposed within the end bodies and defines a central passage having an axis, with the rotatable ball valve element having an open position in which the central passage is aligned with the fluid conveying bores and a closed position in which the passage is not aligned with the fluid conveying bores. The ball valve assembly also includes a pair of seals, with a seal disposed in each end body and in selective abutting engagement with the rotatable ball valve element. The structure of the rotatable ball valve element is controlled such that the ball valve assembly is assembled with the ball in an open position, thereby substantially eliminating the significant force normally required for assembly of the ball valve assembly.

Abstract: A kit of parts for configuring and assembling a shut-off valve in the field has a valve body, a plurality of connection fittings, and a plurality of gaskets. The connection fittings each have a first end with a common configuration adapted to fit into any of three ports provided in the valve body. The connection fittings have second ends with different configurations adapted to connect with any of a variety of conduit configurations which may be encountered in the field.

Abstract: A sealing arrangement and method are disclosed for enhancing a seal in response to conditions of changing temperature. An annular seal is disposed in an annular sealing cavity, with the seal and the cavity having different changes in dimensions in response to a temperature changes. The sealing cavity has a radially outwardly positioned end portion that converges radially outward and a radially inwardly positioned end portion that converges radially inward. Differential changes in the dimensions of the sealing cavity and the sealing member force the sealing material to wedge into one of the converging end portions to enhance the sealing relationship.

Abstract: A ball valve assembly including a valve body having opposing ends and an inside wall extending between the opposing ends. The inside wall forms a central passage and includes capturing portions disposed along the inside wall adjacent each of the opposing ends. The assembly also includes a valve ball rotatably supported within the central passage of the valve body and a valve stem extending through the valve body into the central passage and interengaging a ball valve for transmitting rotational motion thereto. The ball valve has an inside wall that forms a fluid passage therethrough. A pair of retainers is positioned within the central passage on opposing sides of the valve ball. Each of the retainers forms a fluid-tight seal between the valve ball and the valve body. A pair of press rings, captured at least partially within the central passage, is each in abutting engagement a different one of the retainers.

Abstract: A ball valve unit for shutting off the flow of fluids flowing in heating and plumbing systems. The ball valve unit includes a ball valve and a main section including a flange formed integrally with the main section. A chamber is formed in the main section for receiving the ball of the ball valve. The main section is made of brass in order to prevent galvanic action between ball valve unit and the heating/plumbing system.

Abstract: A ball valve assembly having two end bodies selectively detachable from each other with each end body defining a fluid conveying bore is provided. A rotatable ball valve element is disposed within the end bodies and defines a central passage having an axis, with the rotatable ball valve element having an open position in which the central passage is aligned with the fluid conveying bores and a closed position in which the passage is not aligned with the fluid conveying bores. The ball valve assembly also includes a pair of seals, with a seal disposed in each end body and in selective abutting engagement with the rotatable ball valve element. The structure of the rotatable ball valve element is controlled such that the ball valve assembly is assembled with the ball in an open position, thereby substantially eliminating the significant force normally required for assembly of the ball valve assembly.

Abstract: A compact manifold ball valve having a valve body defining a valve chamber and having first and second ends and a first flow passage intersecting the valve chamber a cylindrical sealing surface defining a bonnet and valve stem passage also intersecting the valve chamber. A seat and ball retainer is threaded into the second end of the valve body and provides for support and positioning of a pair of trunnion support elements and a pair of seat assemblies. A valve ball having opposed trunnions is rotatable between open and closed positions within the valve chamber and is supported by the trunnion supports. A valve stem and bonnet assembly is secured and sealed to said valve body and is actuated to rotate the valve ball for opening and closing thereof. The valve seats are capable of metal-to-metal sealing with the valve ball in the event of heat destruction of said face seals to provide the valve with a fire-safe character.

Abstract: A ball valve unit for shutting off the flow of fluids flowing in heating and plumbing systems. The ball valve unit includes a ball valve and a main section including a flange formed integrally with the main section. A chamber is formed in the main section for receiving the ball of the ball valve. The main section is made of brass in order to prevent galvanic action between ball valve unit and the heating/plumbing system.

Abstract: A dripless hose bib for connection to a pressurized water source pipe. The dripless hose bib has a valve body having an inlet port, an outlet port and a fluid passageway connected between them. The front end of the valve body has an external garden hose thread. A ball valve is positioned in the fluid passageway. An aperture in the top surface of the valve body communicates with the ball valve. A vertically oriented valve stem has its bottom end detachably connected to the ball valve and its top end is connected to a transversely extending lever handle. A valve body plug is screwed into the rear end of the valve body and it in turn has a threaded bore in its rear end that threads onto the pressurized water source pipe.

Abstract: A ball valve comprises a tubular body in which a spherical body is rotatably disposed such that the spherical body is connected with a control rod via a connection portion of the tubular body. The spherical body is provided in the outer wall with a retaining slot. The control rod is provided at one end with a retaining body, which is retained in the retaining slot of the spherical body.

Abstract: The invention, a kind of improved three-way valve structure is to install a ball valve inside the main structure of a three-way valve. The top of the ball valve equips a clip base and the lateral sides of its opening equip guiding tracks. The bottom of a turning bar equips a clip base. After assembling a washer on a tuning bar, it is placed inside the valve majority. The ball valve is installed inside a valve majority by using a guiding bar. The clip groove on a ball valve fits the clip base on a turning bar for positioning. After moving guiding bar backward and placing a washer, finally a positioning ring is fitted for completion of assembly and effect of convenient assembly is achieved.

Abstract: An overall valving system is situated generally between a source of water and a habitable structure; a main valve is selectively openable and closable to permit and terminate flow from such source of water to the habitable structure; a conduit is provided for supplying pressurized air to an area downstream of the main valve when the main valve is closed.

Abstract: A ball valve has a main body provided with a rib plate, a receiving cell chamber, a first threaded tubular portion in communication with the receiving chamber, an extension channel, and a second threaded tubular portion in communication with the extension chamber. The main body is further provided with a threaded mouth via which a washer, a rotary shaft member, and a spherical body are removably disposed in the receiving chamber. The threaded mouth is sealed off with a cover.

Abstract: A forged flange-type valve fabrication method that has all the left and right pipeline connections thread fastened to the two sides of the valve body. Utilizing such a forging method, one-piece or two-piece valves have a left and a right primary elements and structurally identical left and the right pipeline connection sections of a two-piece flange-type valve, the ball valve housing section of a one-piece flange-type valve, the plug, the ball valve housing section, and the ball valve position limiter section. External threads and water-tight gasket sleeves are formed on front outer side and ends of the left pipeline connection section of a one-piece flange-type valve and the left and the right pipeline connection sections of a two-piece flange-type valve. Internal threads are tapped in the left connection hole in the structurally identical ball valve housing sections of a one-piece or a two-piece flange-type valve and the right connection hole of the ball valve limiter section.

Abstract: A ball valve is provided with a one-piece housing, in which a ball is accommodated such that it can rotate. In addition to an upper bearing point, the ball valve has a lower bearing point, which is located diametrically opposite the first. The ball and the housing are matched to each other in such a way that the ball can be inserted into the housing from the outside via a fluid opening. In order to fix the ball inserted into the housing, provision is made for screw-in elements which have a spherical seal on the front side.

Abstract: A valve includes a valve body defining a cavity and including a flange having an outer surface and a first element. The first element includes at least one of a recess defined in the outer surface of the flange and a projection extending from the outer surface of the flange. A seat retainer is mounted on the flange and has an inner surface. The seat retainer includes a second element including at least one of a recess defined in the inner surface of the seat retainer and a projection extending from the inner surface of the seat retainer. A valve seat is retained on the flange by the seat retainer. The seat retainer is secured to the flange by a cooperative snap fit engagement between the first and second elements. A valve member may be rotatably mounted in the cavity and engage the valve seat.

Abstract: A valve with fire-resistant seal for use in industrial piping applications. The valve includes a valve body with a valve element therein. The valve is illustrated as a ball valve, but other valve configurations could also be used. A valve stem engages the valve element so that it can be rotated between open and closed positions. A conventional primary seal is used on the valve stem for normal conditions. The valve body defines a body bearing surface, and the valve stem defines a facing stem bearing surface. A thrust bearing is disposed between the body and stem bearing surfaces, and a fire-resistant seal is positioned radially inwardly from the thrust bearing. Initially, the fire-resistant seal is not engaged with at least one of the body or stem bearing surfaces, and the fire-resistant seal has a thickness less than an initial thickness of the thrust bearing.

Abstract: A valve assembly for use in heating, ventilating and air conditioning systems. The valve assembly includes a valve body having a chamber in which is rotatably mounted a quarter-turn flow control ball valve. A valve body nut having an outlet port is threadably mounted on the valve body adjacent the outlet end of the valve body chamber. A flow venturi is removably mounted in the inlet end of the valve body. A pipe union tailpiece is detachably mounted on the inlet end of the valve body. A pair of pressure/temperature readout ports are mounted on the valve body for use in determining the rate of fluid flow through the venturi. A vent plug is mounted on the valve body for venting air from the ball valve chamber.