Abstract: A rotary control valve includes: a rotor including a tubular part and an opening in the tubular part; a seal member including a contact face, an internal passage, a noncontact part, and a ridge; a biasing member structured to cause the contact face of the seal member to be pressed on the tubular part; and a drive mechanism structured to rotate the rotor. The contact face is structured to be in sliding contact with the tubular part, and has an arc-curved surface shaped to fit with an outer periphery of the tubular part. The internal passage is structured to communicate with the opening of the tubular part. The noncontact part is formed at least one of ends of the arc-curved surface in a rotational direction of the tubular part, and is structured to be out of contact with the tubular part so as to define the ridge.

Abstract: Valves with a removable central section for access to parts of the valve, the valve securable between corresponding ends of a line, e.g. a flowline, process fluid line, or pipeline; such valves which are ball valves; and methods to access parts of a valve and/or a line interior.

Abstract: An installation assembly for installing and/or removing a ball into and/or from a valve body of a top entry ball valve includes a valve body having at least one blind bore disposed on an opposite side of the ball chamber from the entry opening and a ball installation tool adapted to interact with the blind bore so as to compress a spring disposed inside the ball chamber substantially axially. A top entry ball valve is arranged with such a valve body. The ball installation tool may be used to install and/or remove a ball from the valve body.

Abstract: A trunnion ball valve includes a ball provided inside a body main unit in a freely rotatable manner; and a seal mechanism provided on positions on both sides of the ball so as to be in seal contact with the ball, the seal mechanism including: a seat retainer having a sealing surface that is to be in seal contact with a ball surface of the ball; a spring member provided for applying elastic force on a sealing surface side; and a sealing member provided on an outer surface of the seat retainer.

Abstract: A metal seated floating ball valve for in-line repair has a valve body, a ball mounted in the valve body, a stem connected to the ball, and a bonnet connected to the valve body. The floating ball valve further has a first seat and a second seat adjacent the ball mounted in the valve body, an energizing ring mounted in the valve body proximate the first seat and in series with the first seat and the second seat, and a valve seat bias mounted in the valve body proximate the energizing ring and in series with the energizing ring. The energizing ring may have a slot near the upper end and a wedge surface along the lower end.

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: Generally, the subject matter disclosed herein relates to length-adjustable pressure-retaining components used in piping systems. In one illustrative embodiment, a device comprising a first pressure component and an adjustable spacer ring operatively coupled to the first pressure component is disclosed, wherein the adjustable spacer ring is adapted to adjust a combined overall length of said the pressure component and the adjustable spacer ring.

Abstract: A ball valve isolator (5) includes a housing (15), a ball valve (60), a first isolator (40), and a second isolator (41). The housing (15) is provided with a first flow passage (29) located between an inlet (30) and an outlet (31). The ball valve (60) that includes a ball portion (63) located in the first flow passage (29) and defines a second flow passage (65) that is aligned with the first flow passage (29) when the ball valve (60) is actuated to an open position. The first isolator (40) is located, at least in part, within the housing (15) and substantially blocks the inlet (30) when the first isolator (40) is actuated to a closed position. The second isolator (41) is located, at least in part, within the housing (15) and substantially blocks the outlet (31) when the second isolator (41) is actuated to a closed position.

Abstract: The invention regards a manifold for fluids, comprising a housing (10) with a centre axis (11) and a number of fluid apertures (12,13) through the walls forming the housing (10) and a fluid diverter system (20), comprising a fluid diverter element (25) mounted in the system (20) selectively rotating around an axis, comprising an axial outlet (27) and an inlet (26) which may be positioned in connection with one fluid aperture (12,13) in the housing. The fluid diverter system (20) is axially insert able into the housing (10) and further comprises a ring element (21), with an outer configuration complementary to an inner configuration of the housing (10), which ring element (21) is positioned around the fluid diverter element (25) and connected to the fluid diverter element (25), and which ring element (21) comprises fluid apertures (22A,B) corresponding to the fluid apertures (12,13) in the housing.

Abstract: A ball value has a valve body defining a cavity, a ball closing component disposed within the cavity through a cavity opening, a cover, and seal assemblies having seating rings with seals disposed engaging both sides of the ball closing component. The seating rings slide in recesses of the valve body into and out of engagement with the ball closing component. The seating rings have flange with seals each engaging a side of the corresponding recess. A closing ring is screwed into the cavity to engage the seating rings. The flange of the seating ring defines a working chamber with the recess and the closing ring. The working chamber is communicated with a pressurized medium source and the working chamber is pressurized to displace the seating rings from the ball closing component to allow seal replacement.

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).