Provided is an electrically surface-controlled subsurface safety valve (ESCSSV). The ESCSSV, in one example, includes an outer housing comprising a central bore extending axially through the housing that is configured to convey production fluids there through. The ESCSSV, in this embodiment, further includes a valve closure mechanism disposed proximate a downhole end of the central bore, and a bore flow management actuator disposed in the central bore and configured to move between a closed state and a flow state to engage or disengage the valve closure mechanism to determine a flow condition of the production fluids through the central bore. The ESCSSV, in this embodiment, additionally includes an electric valve assembly fluidically coupled to the bore flow management actuator and configured to select between a section pressure or the annulus pressure to control the bore flow management actuator and determine the flow condition of production fluids through the central bore.

A fluid end assembly of a hydraulic fluid pump includes a housing having a bore, a removable valve cover closing the bore, and a retainer engaging the bore. The retainer includes a set screw bore that extends from a first side of the retainer to a second side of the retainer, opposite the first side. The fluid end assembly further includes a set screw. The set screw is threaded into the set screw bore from the first side of the retainer. The set screw is not removable from the second side of the retainer. The first side of the retainer is positioned adjacent to the valve cover.

A fluid end assembly of a hydraulic fluid pump includes a housing having an axial bore, a removable valve cover closing the axial bore, and a retainer engaging the axial bore. The retainer includes a central opening. The fluid end assembly further includes a threaded drive member positioned within the central opening and operable to apply a preload against the retainer.

A switchable slotted valve for a coating installation that controls dispensing of a pasty coating material, includes a valve bore incorporated into a valve basic body, oriented in a valve direction of extent and having an inner circumferential surface, a feed duct arranged in a region of the inner circumferential surface of the valve bore and opens into the valve bore, a nozzle duct arranged in the region of the inner circumferential surface of the valve bore and leads out from the valve bore, a valve sleeve arranged in the valve bore and has an inner circumferential surface that delimits a cavity oriented in the valve direction of extent, and an outer circumferential surface, wherein the valve sleeve includes a slot-shaped sleeve inlet opening into the cavity and a slot-shaped sleeve outlet leading out from the cavity, a valve control rod arranged in the valve bore.

A motorized valve includes a body with at least one intake duct and one outlet duct, a plugging member movably mounted in the body to plug or release a passage between the intake duct and the outlet duct, and a motorized control system for controlling the movement of the plugging member. The motorized control system also includes a plug valve connecting intake and outlet ducts, a gear motor including an electric motor and a reduction gear train. The gear train includes an exit wheel rotating the plug of the valve so as to allow progressive opening of the valve, and the gear motor is formed by a casing including the electric motor and reduction gear train, the valve body being integrally formed with the casing.

A valve apparatus may include a control valve including valve body having an inlet, an outlet, and a flow path. A rotational valve stem may extend along a longitudinal axis, the valve stem having a top portion and a bottom portion, the valve stem operatively coupled to a control element movably disposed in the flow path. A yoke may be attached to the valve body and arranged to operatively couple the valve body to an actuator, the yoke including a first bracket having an aperture and a second bracket having an aperture. A bushing may be arranged to align an actuator shaft of the actuator to the longitudinal axis of the valve stem, the bushing having a first portion and a second portion, the first portion engaging within the aperture of the first bracket and the second portion engaging the aperture of the second bracket.

Valve with multi-piece stator assembly for use with liquid chromatography or other analytical systems. A separate and removable stator plate is provided with a mounting device to provide a multi-piece stator assembly. The mounting device is adapted on one side to engage and contact the stator plate, and on the other side includes a plurality of ports for fluidic connections which are in fluid communication with fluid passageways in the stator plate. By making the stator face a separate component, the overall costs of the valve can be reduced, different materials can be used for the mounting device and the stator, and the valve can be used for ultra-high pressure applications, including in liquid chromatography and other analytical instrument systems.

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.

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.

An electric valve and an assembly method therefor. The provision of multilayered sealing of a first sealing element, a second sealing element, and a sealing medium located between the first sealing element and the second sealing element along the axial direction of a valve stem is conducive to restricting outward leakage of a fluid along the axial direction of the valve stem.