Abstract: A ball valve seat in which a resin or metal impregnated graphite seal ring and an L-shaped metal retainer are integrated by a shrink fit method. The graphite seal ring is provided with a continuous rib having a height of 50 to 250 ?m on the outer periphery of the graphite seal ring. The rib preferably has arc curve of radius R slopes on both sides of the rib from the top to the bottom, and the width L of the bottom of the rib is preferably 550 to 1100 ?m.

Abstract: A valve, in certain embodiments, includes a drive shaft configured to couple to a fluid control component and having an interlace material at the joint between the drive shaft and the fluid control component. A valve, in other embodiments, includes a fluid control component configured to receive a drive shaft and having an interlace material at the joint between the fluid control component and the drive shaft. A valve, in further embodiments, includes a drive shaft having a mechanical locking system and a fluid control component coupled to the drive shaft at a joint, wherein the spline aids in coupling the fluid control component to the drive shaft.

Abstract: A floating ball valve has a metal multiple component seat installed in the seat pocket. The multiple component seat further includes a support ring and at least one seal element. The support ring and the seal element are juxtaposed and both are adjacent to the ball when the floating ball valve is in a closed position. The support ring is in a overlapping complimentary position with respect to the seal element, the seal element having greater elasticity than the support ring and the support ring having a greater load bearing strength than the seal element.

Abstract: A ball valve which can suppress the increasing of processing labor time and reliably prevent simultaneous rotation of a ball seat and a ball when the ball is rotated by handle manipulation is provided. The valve body 2 is formed of a hard material such as stainless steel, the ball seat is formed of a relatively soft material such as a fluorine resin, and a protrusion 18 is formed on a ball seat support surface 13 of the valve body 2 made of a hard material so as to bite into the ball seat 4.

Abstract: A valve, in certain embodiments, includes a drive shaft configured to couple to a fluid control component and having an interlace material at the joint between the drive shaft and the fluid control component. A valve, in other embodiments, includes a fluid control component configured to receive a drive shaft and having an interlace material at the joint between the fluid control component and the drive shaft. A valve, in further embodiments, includes a drive shaft having a mechanical locking system and a fluid control component coupled to the drive shaft at a joint, wherein the spline aids in coupling the fluid control component to the drive shaft.

Abstract: The present invention discloses an electric floating ball valve. The electric floating ball valve addresses the problems of the existing electric floating ball valve, such as poor reliability, high tendency to be damaged, poor control precision, high noises in operation as well as high costs for maintenance and replacement. The electric floating ball valve includes a valve body, a valve stem, a valve core and a drive mechanism. The drive mechanism is connected with the outer end of the valve stem and could drive the said valve stem to rotate. The external side of the valve stem is covered with a cylindrical heat sink made of metallic materials. Said heat sink is fixedly connected with said valve body. The heat sink of the electric floating valve could significantly improve the heat radiation capacity, which efficiently guarantees the stable and reliable operation of the drive mechanism.

Abstract: A downhole valve assembly including a valve mounted in a tubular body, the valve moveable between an open and closed position. Movement is achieved by a fluid operated valve actuation mechanism located downhole of the valve having a fluid inlet port located uphole of the valve. A method of controlling fluid flow downhole is also described allowing the valve to be moved between the open and closed positions and between closed and open positions.

Abstract: A ball valve, in particular for highly pressurized media, with a valve housing (1) in which a ball spindle (16) which is pivoted around an axis in the housing (1) at an axial distance from the pivot support has a ball body (12) as a blocking element between the input part and the output part of a passage (4) of the housing (1) for media, and the flow opening (14) located in the ball body (12) can be oriented to the passage (4) for media for unblocking the ball valve by turning the ball spindle (12), characterized in that the ball spindle (12) is supported on two end sections (8, 10) which are made identical and which are connected to the ball body (12) on both sides and that the support on at least one end section (8, 10) is formed by a support cover (26) which has integrated slide bearing elements (34, 36) and which can be detachably mounted on the housing (1).

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: A valve assembly comprising a housing and a valve member mounted within the housing rotatable about an axis and between at least a dispensing position and a further position, for instance a volume selection position during which a material can be withdrawn from a container, and, preferably, a seat for mounting and guiding the valve member within the housing, wherein at least one of said housing, valve member, and seat is made of a synthetic material and the assembly further comprises a spring, which urges at least two of said housing, valve member, and seat together.

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 tapping valve of plastics material for transport and storage containers for liquids, which is constructed as a flap valve or ball valve, includes a valve housing with an inlet connection connectable to an outlet connection of the liquid container and an outlet connection, wherein the outlet connection of the valve body is welded to the male part of a Kamlok coupling for connecting a discharge hose. The valve housing is of a polyethylene of high density and the male part of the Kamlok coupling is of a glass fiber-reinforced polyethylene of high density.