A valve having a hollow body which extends along a main axis (X), in which at least one secondary body is arranged at one end of the hollow body substantially coaxial to the main axis (X) and has an inner end portion with a collar protruding towards the inner surface of the hollow body is disclosed. The hollow body has at least one annular groove in which a ring is arranged at least partially to prevent the movement of the secondary body towards the end of the hollow body, in which the ring is divided into at least two arcs configured to be inserted individually inside the groove of the hollow body to form the ring.

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. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).

A valve having a hollow body which extends along a main axis (X), in which at least one secondary body is arranged at one end of the hollow body substantially coaxial to the main axis (X) and has an inner end portion with a collar protruding towards the inner surface of the hollow body is disclosed. The hollow body has at least one annular groove in which a ring is arranged at least partially to prevent the movement of the secondary body towards the end of the hollow body, in which the ring is divided into at least two arcs configured to be inserted individually inside the groove of the hollow body to form the ring.

A ball valve adaptor assembly for connection to a ball valve cartridge and for connection to a valve actuator, wherein the adaptor comprises: an outlet connector, the outlet connector comprising an outlet connector plate and an outlet pipe, the outlet connector plate configured to connect to a housing outlet of the ball valve cartridge with the outlet pipe extending away from the housing outlet, and an inlet connector, the inlet connector comprising an inlet connector plate and an inlet pipe, the inlet connector plate configured to connect to a housing inlet of the ball valve cartridge with the inlet pipe extending away from the housing inlet, an actuator connector configured to reversibly connect to the outlet and inlet connector plates and configured to reversibly connect to the valve actuator, and wherein in use, when the outlet plate, inlet plate and actuator connector are connected, a cartridge cavity is formed between the outlet plate, inlet plate and the actuator connector, and wherein the cartridge cavity is configured to reversibly receive the ball valve cartridge.

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.

A sealing element for a ball valve with a first sealing ring and a second sealing ring whose central axes are parallel, the first sealing ring and the second sealing ring being made of different materials, and the first sealing ring being located on a side of the second sealing ring facing towards a ball in a ball valve in an axial direction, and being used to make contact with a spherical surface of the ball to form a seat The first and second sealing rings are fixed together, and the first sealing ring is a stamped annular polytetrafluoroethylene (PTFE) sheet. Since PTFE has a very low friction coefficient, the friction torque between the first sealing ring and the spherical surface of the ball is relatively small, and the first sealing ring does not wear easily and is not prone to sealing failure. A ball valve using the sealing element is also disclosed.

A valve including a flow control assembly having an adaptive, floating closure member is provided. In one embodiment, a ball valve includes a floating closure member having a shoulder enclosed within a recess of the valve body. The recess is larger than the shoulder of the closure member and allows axial movement of the closure member with respect to the valve body and along a flow path through the valve. Additional valve systems, devices, and methods are also disclosed.

A valve including a flow control assembly having an adaptive, floating closure member is provided. In one embodiment, a ball valve includes a floating closure member having a shoulder enclosed within a recess of the valve body. The recess is larger than the shoulder of the closure member and allows axial movement of the closure member with respect to the valve body and along a flow path through the valve. Additional valve systems, devices, and methods are also disclosed.

A ball valve of a refrigerant valve device for an air conditioning system including a ball valve housing of two housing parts, which each have an L-shaped cross-sectional geometry, are aligned rotationally symmetrically with respect to one another and are connected to one another at their ends with the help of fastening elements to form a ball valve housing with a rectangular cross-sectional geometry, with two mutually opposite housing side walls, a bottom wall and with an upper housing wall opposite to the bottom wall and with two mutually opposite open sides, wherein the ball valve housing has a fluid inlet formed in the bottom wall and two fluid outlets formed in the mutually opposite housing side walls, a ball arrangement which contains a through-flow control ball as well as sealing seats and inner sealing elements and is held together by the ball valve housing.

A ball valve assembly for a railroad tank car is disclosed herein. The ball valve assembly may comprise a ball valve removably coupled to an end of a fittings flange of a railroad tank car, a dual thread retainer assembly affixed to an end of the ball valve opposite the fittings flange, and an anti-rotation assembly attached to the fittings flange. The dual thread retainer assembly may comprise a retainer affixed to the end of the ball valve opposite the fittings flange and a cap removably affixed to an end of the retainer opposite the ball valve. The anti-rotation assembly may comprise a base affixed to the fittings flange and a fork secured to the base that is configured to prevent rotation of the ball valve and the dual thread retainer assembly with respect to the fittings flange.