A ball valve includes a body and a ball subassembly. The body includes a first bore extending partially through the body from a first flange of the body along a first axis, the flange defining an opening, a second bore extending in along a second axis from the first bore to a second flange, wherein the second axis is transverse to the first axis, and a third bore extending along the second axis, opposite the second bore, from the first bore to a third flange. The ball subassembly is configured to be inserted into first bore of the body through the opening. The ball subassembly includes a ball having a ball bore extending through the ball. The ball is configured to rotate about the first axis to open and close the ball valve such that the ball bore is substantially aligned with the second axis when the ball valve is open, and wherein the ball bore is substantially transverse to the second axis when the valve is closed.

A top entry ball valve a pipeline mainly used in Oil and Gas Industry, Chemical and pharmaceutical Industries. The system allows for replacing all the ball valve components and seals while the valve body is still in the pipeline. The ball valve assembly has four main components: the body, gearbox, ball, and seats. Disassembly and reassembly may be performed utilizing various tools to allow removal and reinstallation of the ball, seats, seals, or other components therein without the need to remove the ball valve assembly from a pipeline.

A top entry ball valve a pipeline mainly used in Oil and Gas Industry, Chemical and pharmaceutical Industries. The system allows for replacing all the ball valve components and seals while the valve body is still in the pipeline. The ball valve assembly has four main components: the body, gearbox, ball, and seats. Disassembly and reassembly may be performed utilizing various tools to allow removal and reinstallation of the ball, seats, seals, or other components therein without the need to remove the ball valve assembly from a pipeline.

A top entry ball valve including a valve body, a valve cover, a valve stem, an assembly screw, a spring, a support sleeve, a support valve seat, a sphere, and a sealing valve seat. The valve stem passes through the valve cover and the valve body and is fixedly connected to the sphere disposed within the valve body; the valve cover is fixed to the opening of the cavity of the valve body by screws, to seal the cavity of the valve body; the sphere spherically fits with the support valve seat and the sealing valve seat; the support sleeve and the spring are provided between the support valve seat and the valve body; the spring presses the support sleeve and the support valve seat such that the support valve seat clings to the sphere; the support sleeve is fixedly connected to the valve body by the assembly screw.

A top entry ball valve including a valve body, a valve cover, a valve stem, an assembly screw, a spring, a support sleeve, a support valve seat, a sphere, and a sealing valve seat. The valve stem passes through the valve cover and the valve body and is fixedly connected to the sphere disposed within the valve body; the valve cover is fixed to the opening of the cavity of the valve body by screws, to seal the cavity of the valve body; the sphere spherically fits with the support valve seat and the sealing valve seat; the support sleeve and the spring are provided between the support valve seat and the valve body; the spring presses the support sleeve and the support valve seat such that the support valve seat clings to the sphere; the support sleeve is fixedly connected to the valve body by the assembly screw.

A top entry ball valve comprises a housing with a central cavity communicating with two bores which define a flow path through the housing. A ball valve element is provided and comprises a through bore. The ball valve element is rotatably mounted within the central cavity for rotation about an axis for selectively aligning the through bore with the housing bores. The ball valve element further comprises first and second flat surfaces on opposite sides of the ball valve element. The flat surfaces are perpendicular to the axis. The top entry ball valve further comprises first and second seats which are configured to provide a seal between the ball valve element and the central cavity. First and second protective rings are provided for receiving and supporting at least a portion of the first and second seats.

A ball valve includes a body and a ball subassembly. The body includes a first bore extending partially through the body from a first flange of the body along a first axis, the flange defining an opening, a second bore extending in along a second axis from the first bore to a second flange, wherein the second axis is transverse to the first axis, and a third bore extending along the second axis, opposite the second bore, from the first bore to a third flange. The ball subassembly is configured to be inserted into first bore of the body through the opening. The ball subassembly includes a ball having a ball bore extending through the ball. The ball is configured to rotate about the first axis to open and close the ball valve such that the ball bore is substantially aligned with the second axis when the ball valve is open, and wherein the ball bore is substantially transverse to the second axis when the valve is closed.

A top entry ball valve comprises a housing with a central cavity communicating with two bores which define a flow path through the housing. A ball valve element is provided and comprises a through bore. The ball valve element is rotatably mounted within the central cavity for rotation about an axis for selectively aligning the through bore with the housing bores. The ball valve element further comprises first and second flat surfaces on opposite sides of the ball valve element. The flat surfaces are perpendicular to the axis. The top entry ball valve further comprises first and second seats which are configured to provide a seal between the ball valve element and the central cavity. First and second protective rings are provided for receiving and supporting at least a portion of the first and second seats.