A multi-seat plug valve with a pair of sealing members separated by a rotatable plug, a body with one or more detents for receipt of a respective locking pin, a bonnet with one or more detents for receipt of a respective locking pin, linear track plates (upper/lower), and offset track plates (upper/lower). Each locking pin permanently rests in a respective slot in an upper or lower linear track plate. The locking pins may be moved between respective opposing detents in the upper or lower offset track plate and the bonnet or body, respectively, to affect i) radial movement of the sealing members when the linear track plates are coupled to the body and the bonnet by locking pins, and ii) rotational movement of the sealing members when the linear track plates are coupled to the upper and lower offset track plates by locking pins.
F16K 5/18 - Special arrangements for separating the sealing faces or for pressing them together for plugs with cylindrical surfaces
F16K 5/04 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfacesPackings therefor
A multi-seat plug valve with a pair of sealing members separated by a rotatable plug, a body with one or more detents for receipt of a respective locking pin, a bonnet with one or more detents for receipt of a respective locking pin, linear track plates (upper/lower), and offset track plates (upper/lower). Each locking pin permanently rests in a respective slot in an upper or lower linear track plate. The locking pins may be moved between respective opposing detents in the upper or lower offset track plate and the bonnet or body, respectively, to affect i) radial movement of the sealing members when the linear track plates are coupled to the body and the bonnet by locking pins, and ii) rotational movement of the sealing members when the linear track plates are coupled to the upper and lower offset track plates by locking pins.
F16K 5/04 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfacesPackings therefor
F16K 5/08 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary Details
F16K 5/14 - Special arrangements for separating the sealing faces or for pressing them together
A multi-seat plug valve with a pair of sealing members separated by a rotatable plug, a body with one or more detents for receipt of a respective locking pin, a bonnet with one or more detents for receipt of a respective locking pin, linear track plates (upper/lower), and offset track plates (upper/lower). Each locking pin permanently rests in a respective slot in an upper or lower linear track plate. The locking pins may be moved between respective opposing detents in the upper or lower offset track plate and the bonnet or body, respectively, to affect i) radial movement of the sealing members when the linear track plates are coupled to the body and the bonnet by locking pins, and ii) rotational movement of the sealing members when the linear track plates are coupled to the upper and lower offset track plates by locking pins.
F16K 5/04 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfacesPackings therefor
F16K 5/08 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary Details
F16K 5/14 - Special arrangements for separating the sealing faces or for pressing them together
A multi-seat gate valve with a pair of sealing members separated by a gate wherein each sealing member is secured between a bottom edge surface on the gate and a pair of locking members until the gate valve is at a fully closed position and proper seating is achieved.
F16K 3/02 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor
F16K 3/14 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor with wedge-shaped arrangements of sealing faces with special arrangements for separating the sealing faces or for pressing them together
F16K 3/18 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members
Technologies directed to multi-seat gate valves are described. Various types of valves are used to control the flow of fluids through a pipeline. A gate valve includes a housing for the gate valve in an open position and a passageway connected to a pipeline. Once closed, the valve is substantially sealed and prevents/obstructs movement of the fluid through the fluid passageway. When the fluid also includes a mixture of solids an adequate seal is difficult to achieve. The present application describes a multi-seat gate valve that includes (i) a body having a fluid passage; (ii) a gate having pairs of opposing parallel and non-parallel surfaces, and a bottom edge; and (iii) a pair of sealing members. Each sealing member is secured between the bottom edge and a pair of locking members until the gate valve is fully closed to enable a proper seal.
F16K 3/14 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor with wedge-shaped arrangements of sealing faces with special arrangements for separating the sealing faces or for pressing them together
F16K 3/00 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
F16K 3/16 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor with special arrangements for separating the sealing faces or for pressing them together
F16K 3/18 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members
A multi-seat gate valve with a pair of sealing members separated by a gate wherein each sealing member is secured between a bottom edge surface on the gate and a pair of locking members until the gate valve is at a fully closed position and proper seating is achieved.
F16K 3/14 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor with wedge-shaped arrangements of sealing faces with special arrangements for separating the sealing faces or for pressing them together
F16K 3/00 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
F16K 3/16 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor with special arrangements for separating the sealing faces or for pressing them together
F16K 3/18 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members
A multi-seat valve, which includes a seal on each side of a sealing member that is secured against a respective pair of seat profiles surrounding a fluid passageway and leak detection passage separating a pair of seat profiles.
F16K 3/12 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor with wedge-shaped arrangements of sealing faces
