Abstract: A valve and a method for producing a valve, in particular for coolant circuits, having a valve seat (2) including a valve seating element (1) for a valve body (3) by stamping the pole shoe to form at least one sealing surface (8) to avoid the disadvantages of the prior art. This is achieved according to the invention by forming at least one sealing surface (8) to form a novel sealing element (1) utilizing a stamping element to form a stamped surface of the novel valve with a valve seating element.

Abstract: In a direct injection type automatic sampler, a sampling needle having a liquid sample collected from a sample vessel by using suction force of a pump is inserted into an injection port. Then, a flow path-switching valve is rotated to switch a flow path to make a flow of mobile phase liquid pass through a loop to thereby introduce the collected sample into a column. The injection port is directly incorporated in the flow path-switching valve.

Abstract: An integrated in-line tube and check valve assembly fabricated by end-form mandrel expanding an outlet end portion of deformable tube stock, such as metal, of nominal starting diameter, and concurrently end-forming a valve seat on the inside of the expanded tube section where it necks down and integrally joins the upstream nominal diameter portion of the tube. A valve ball and a valve spring are then fitted into the expanded tube section, together with a spring holder if needed. The expanded end portion of the tube is then again deformed by an end-form swaging operation that reduces the diameter of the expanded tube outlet end so as to form a cavity within the tube in which the spring is captured in compression for resiliently biasing the valve ball against the valve seat.

Abstract: The invention provides a ball valve excelling in economy due to the efforts devoted to the reduction of cost, enjoying light weight and high reliability, manifesting high and uniform accuracy, and enabling manufacture of compact finished products having a small interface dimension, and provides a method for the production of the ball valve. The ball valve includes a body formed from a pipe having a predetermined length by subjecting opposite terminal parts (ends) of the pipe to a plastic processing including flaring and diametrical contraction. The body has at a central position a seat-shaping part (seat) formed with a stem-inserting hole, a stem inserted into the stem-inserting hole, a ball disposed non-rotatably at a lower terminal of the stem, and a pair of inserting members having an annular shape forced into the body from opposite terminals of the body. Opposite terminal faces of the body are compression-formed so that the pair of inserting members receive and support the ball rotatably.

Abstract: Disclosed is a gas meter valve for connection to an outlet of a gas meter and a method for its use. The gas meter valve comprises a valve inlet coupleable to the meter outlet, a valve outlet coupleable to piping for supplying gas to a customer and a valve body coupled to the valve inlet and the valve outlet. The valve body includes a chamber for communicating gas from the valve inlet to the valve outlet and a valve assembly disposed in the chamber and adapted to prevent the communication of gas through the chamber when the valve assembly is in a first position and permit the communication of gas through the chamber when the valve assembly is in a second position. The gas meter valve further includes an actuating mechanism coupled to the valve assembly for positioning the valve assembly in the first position and the second position.

Abstract: A ball valve equipped with a ball closing component (1) a cover (18) and seals assemblies (2) having sediment rings (5) with seals (6) characterised in that on the lateral surface of each sediment ring (5) there is a flange (9), having from the side of a ball closing component (1), working surface (10). The space of the recess (3) of a body (4) contains a working chamber (11) placed between working surface (10) of the flange (9) and a closing ring (12) screwed down to the inner part of the body (4) and a chamber (13) placed from the back wall (8) of the recess (3). The working chamber (11) is connected in a passage way with the interior of the body (4).

Abstract: A top-entry ball valve assembly that includes top and bottom camming plates which are coupled to top and bottom shoulders of the ball valve member. The camming plates include a first pair of opposing camming corner-surfaces to displace the spring-biased valve seat from the perimeter of the ball valve member when it is rotated between open and closed positions. The plates further include a second pair of opposing camming corner-surfaces to fully retract the spring-biased valve seat when being serviced so that the retraction tool can be inserted to hold the seats in place with little or no damage to the forward end of the seats.

Abstract: A rotary plug valve is disclosed in a preferred embodiment that has two telescoping seat assemblies that fit into respective recesses provided in the valve body surrounding a passageway through the plug valve. A valve chamber is formed in the valve body into which the rotary plug may be positioned to control flow through the valve by rotation thereof. In a preferred embodiment, the telescoping seat assemblies provide an upstream and a downstream seal with the rotary plug. The telescoping seat assemblies preferably function differently when in the open and closed position so that both assemblies expand when in the open position whereas in the closed position one assembly expands and one is compressed A line pressure surface is provided to provide a force against the plug seal seat element. The plug seal seat element and plug mate with a curved surface and the contact stress varies depending on the location along the curved surface.

Abstract: A temporary ball valve support structure is utilized to apply pressure to the ball in a ball valve so that a seal is maintained between the ball and the upstream seal member in the ball valve to prevent fluid from leaking from the valve while the valve is being serviced. The temporary ball valve support allows a downstream seal member and the ball valve retainer housing assembly to be removed. This allows the outer seal and retainer to be replaced and/or serviced without allowing fluid to escape from the tank or pipe. First and second ball support members are alternately used to force the ball member against the upstream seal member.

Abstract: A temporary ball valve support structure is utilized to apply pressure on the ball in a ball valve so that a seal is maintained between the ball portion of the valve and one seal member. This prevents fluid from leaking from the valve while the valve is being serviced by ensuring that there is a good seal between the ball valve and the seal closest to the fluid filled tank or pipe. The temporary ball valve support allows a outermost ball valve seal and the ball valve retainer housing assembly to be removed. This allows the outer seal and retainer to be replaced and/or serviced without allowing fluid to be escape from the tank. First and second clamping members are alternately used to force the ball member against the seal closest to the fluid container.

Abstract: A valve for controlling the flow of a fluid comprises a housing, a flow-control element disposed within the housing, at least one seat operably engaging the flow-control element, and a biasing device for urging the seat and the flow-control element relative toward each other. In some embodiments, the valve also includes an actuating device operably engaging the flow-control element. The flow-control element, the seat, and the biasing device are comprised of a refractory material, and at least the biasing device is formed of a toughened refractory or ceramic material that is fully annealed so that porosity in the material is substantially eliminated and such that the material is substantially homogenous. In some embodiments, the seat, the flow-control element, the biasing device, and/or other components may be advantageously fabricated together as a unitary structure. An associated fabrication method is also provided.

Abstract: A ball valve comprising a seat having a first opening thereon, a housing over the seat having a second opening defined by a flap having an inner and outer diameter, and a ball in the housing, the ball having a diameter great than the inner diameter of the flap. The seat may be formed directly onto a metal insert of a bonded piston seal, or directly onto a wall of any chamber needing a ball valve therein. The housing may be formed as an extension of a piece of rubber used to seal the periphery of the insert or chamber wall. Hence, the housing and insert or chamber wall may be molded together as part of a unitarily formed chamber and ball valve combination.

Abstract: An apparatus and process for removing a ball valve is provided. The ball valve removal tool provides a handle sliding along the length of a shaft. One end of the shaft is secured within an interior cavity of a ball valve while the opposite end of the shaft defines a stop member. By providing a manual sliding force to the handle, the handle impacts the stop member and transmits the force to the ball valve. The direction of the force is along the shaft of the removal tool and disengages the ball valve from the ball valve housing.

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: A valve assembly includes a valve and a gearbox. The valve includes a valve body having a drive opening and a mounting surface adjacent the drive opening. At least one mounting bore is formed in the mounting surface. At least one rigid pin is fixed to and projects from the mounting surface. A rotatable valve member is disposed in the valve body. A gearbox is operable to rotate the valve member through the drive opening. The gearbox includes a casing including a mounting wall positioned adjacent the mounting surface of the valve body. At least one mounting hole is formed in the mounting wall and is disposed adjacent the mounting bore. At least one pin hole is formed in the mounting wall and receives the pin. A drive hole is formed in the mounting wall and communicates with the drive opening. At least one fastener extends through the mounting hole and engages the mounting bore to secure the casing to the mounting surface. The pin resists relative rotational movement of the casing and the valve body.

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.