A gate valve assembly comprises a housing providing an inlet, an outlet, a valve seat arrangement and a gated fluid passage between the inlet and the outlet, a gate-carrying shaft, and a plate providing a slab gate in slidable engagement with the at least one valve seat and to be operated via the gate-carrying shaft between an open condition and a shut condition, wherein the plate is mounted at one plate end via a retainer (50) engaging a stem end (36) of the gate-carrying shaft, the retainer held in a recess (48) of the plate. In embodiments, contact regions between the retainer and the recess may be designed to surround the gate-carrying shaft, which improves load distribution in operation.
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 3/314 - Forms or constructions of slidesAttachment of the slide to the spindle
A slab gate valve assembly having a housing (12) with an inlet (22), an outlet (24), and a gated fluid passage between the inlet (22) and the outlet (24), at least one valve seat (42, 44) disposed in a seat pocket (70) of the housing (12), a gate-carrying shaft (30), and a slab gate plate arrangement (32, 34) in slidable engagement with the at least one valve seat (42, 44) and to be operated via the gate-carrying shaft (30) between an open condition and a shut condition, wherein at least one valve seat (42, 44) is threadedly disposed in its seat pocket (70). The threaded engagement allows a torque preload to be applied within a high degree of accuracy.
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 3/314 - Forms or constructions of slidesAttachment of the slide to the spindle
c) not mounted to the gate-carrying shaft (30). By permitting plate articulation in a controlled manner, the assembly avoids a need for a cage, resulting in a reduced number of components and reduced space requirement.
F16K 3/314 - Forms or constructions of slidesAttachment of the slide to the spindle
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 3/18 - 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 slab gate valve assembly comprises a housing (12) with an inlet (22), an outlet (24), and a gated fluid passage between the inlet (22) and the outlet (24), at least one valve seat (42, 44) disposed in a seat pocket (70) of the housing (12), a gate-carrying shaft (30), and a slab gate plate arrangement (32, 34) in slidable engagement with the at least one valve seat (42, 44) and to be operated via the gate-carrying shaft (30) between an open condition and a shut condition, wherein at least one valve seat (42, 44) is threadedly disposed in its seat pocket (70). The threaded engagement allows a torque preload to be applied within a high degree of accuracy.
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 3/314 - Forms or constructions of slidesAttachment of the slide to the spindle
A slab gate valve assembly comprises a housing (12) with an inlet (22), an outlet (24), and a gated fluid passage between the inlet (22) and the outlet (24), at least one valve seat (42, 44) disposed in the housing (12), a gate-carrying shaft (30), and a slab gate plate arrangement (32, 34) in slidable engagement with the at least one valve seat (42, 44) and to be operated via the gate-carrying shaft (30) between an open condition and a shut condition, wherein one or more plates (32, 34) of the gate plate arrangement (32, 34) are mounted at one plate end (33d) to the gate-carrying shaft (30), in a manner permitting gate plate articulation relative to the gate-carrying shaft (30), and comprise a free end (33c) not mounted to the gate-carrying shaft (30). By permitting plate articulation in a controlled manner, the assembly avoids a need for a cage, resulting in a reduced number of components and reduced space requirement.
F16K 3/314 - Forms or constructions of slidesAttachment of the slide to the spindle
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 3/18 - 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 rotary valve (10) is described, comprising a housing (12) defining a chamber (16), a valve member (22) located within the chamber (16) and engageable with a seating surface (18) to control fluid communication between a first port (20) and a second port (20), a drive shaft (28) controlling the angular position of the valve member (22), and an actuator (30) coupled to the drive shaft (28), wherein a roller bearing arrangement (34) is provided between a surface of the valve member (22) and a surface of the housing defining the chamber (16).
F16K 11/074 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with pivoted closure members with flat sealing faces
b engageable with a stop associated with the other of the rotatable part 32 and the stationary part 12, wherein the stop comprises a stop pin 40 of hollow, substantially cylindrical form.
F16K 17/40 - Safety valvesEqualising valves with fracturing member, e.g. fracturing diaphragm, fusible joint
F16K 35/04 - Means to prevent accidental or unauthorised actuation yieldingly resisting the actuation
F16K 3/04 - 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 pivoted closure members
A rotary valve is described that comprises a rotary valve member (14) including a flow control region (26), and a valve seat surface (30) with which the flow control region (26) of the valve member (14) is in engagement, a flow port (22) opening into the valve seat surface (30), the flow port (22) being positioned such that, in a first angular position of the valve member (14), the flow control region (26) fully closes the flow port (22) and in a second angular position the flow port (22) is just fully unobscured by the flow control region (26), the first and second angular positions being spaced apart from one another by an angle in excess of 180°.
F16K 3/08 - 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 pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular closure plates rotatable around their centres
A valve actuator is described that comprises a piston (22) moveable within a cylinder (24), an indicator pin support member (46) movable with the piston (22), and an indicator pin (52) attached to the support member (46) and extending through an opening (50) provided in a housing (44), wherein the indicator pin (52) includes an attachment region held captive to the support member (46), the attachment region extending through an arcuate slot (54) formed in the support member (46). Also described is a valve incorporating such an actuator.
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
A valve is described including a valve seat defining a first port and a second port and an angularly movable valve member having a first face and a second face. The valve member is movable between a closed position in which the first face thereof, or a valve element associated therewith, closes at least one of the ports and an open position. The valve member defines a first flow passage and a second flow passage, each flow passage communicating with a chamber defined, at least in part, by the second face of the valve member. At least the first flow passage defines or includes a flow director to impart a circumferential or tangential component to the fluid flow therethrough.
F16K 3/08 - 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 pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular closure plates rotatable around their centres
F16K 3/32 - Means for additional adjustment of the rate of flow
G05D 7/06 - Control of flow characterised by the use of electric means
F16K 3/06 - 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 pivoted closure members in the form of closure plates arranged between supply and discharge passages
F16K 1/20 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure members with pivoted discs or flaps with axis of rotation arranged externally of valve member
G05D 16/20 - Control of fluid pressure characterised by the use of electric means
F16K 1/18 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure members with pivoted discs or flaps
F16K 3/10 - 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 pivoted closure members with special arrangements for separating the sealing faces or for pressing them together
F16K 27/04 - Construction of housingsUse of materials therefor of sliding valves
A check valve including a valve member movable with a passage in a housing is disclosed. A biasing means applies a biasing load to the valve member to urge the valve member into engagement with a seating surface within the passage to control fluid flow. An environmental seal member is secured to the valve member by a retainer member. The retainer member includes a lip elastically deflectable by the environmental seal member upon compression and/or deflection of the environmental seal member. When the valve member engages the seating surface, the environmental seal member engages the seating surface to compress and/or deflect the environmental seal member, deflects the lip of the retainer member into engagement with the seating surface. Extrusion of the environmental seal member between the retainer member and the seating surface can be reduced and the engagement between the lip and the seating surface may be a sealing engagement.
An actuator comprises an axially moveable piston coupled to a drive member such that axial movement of the piston 16 drives the drive member for angular movement, the drive member being coupled via a clutch to an output member, the output member further being coupled by way of a cam arrangement with an override actuator, the cam arrangement being operable such that initial angular movement of the override actuator relative to the output member can drive the output member for axial movement, disengaging the clutch, further movement of the override actuator driving the output member for angular movement.
F15B 15/06 - Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non-rectilinear movement
An actuator comprises a housing (18), piston driven member (26) axially movable within the housing (18) and being coupled to the housing (18) by a first pin and ramp coupling such that axial movement of the piston driven member (26) relative to the housing (18) is accompanied by angular movement of the piston driven member (26) relative to the housing (18), and an output member (34) constrained against axial movement relative to the housing (18) and coupled to the piston driven member (26) by a second pin and ramp coupling such that both axial and angular movement of the piston driven member (26) drive the output member (34) for angular movement relative to the housing (18).
F15B 15/06 - Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non-rectilinear movement
F16K 31/163 - Operating meansReleasing devices actuated by fluid with a mechanism, other than pulling- or pushing-rod, between fluid motor and closure member the fluid acting on a piston
A valve gate button is disclosed comprising a contacting face for sealing a port of a valve seat, wherein the contacting face is flat and has a substantially straight flow control edge. A valve gate is disclosed, comprising the valve gate button. A valve is disclosed comprising the valve gate button or valve gate.
F16K 3/08 - 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 pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular closure plates rotatable around their centres
F16K 3/10 - 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 pivoted closure members with special arrangements for separating the sealing faces or for pressing them together
F16K 1/18 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure members with pivoted discs or flaps
F16K 27/06 - Construction of housingsUse of materials therefor of taps or cocks
F16K 27/04 - Construction of housingsUse of materials therefor of sliding valves
F16K 1/20 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure members with pivoted discs or flaps with axis of rotation arranged externally of valve member
A valve arrangement comprises a rotatable part 32 rotatable relative to a stationary part 12, wherein one of the rotatable part 32 and the stationary part 12 includes an abutment surface 36a, 36b engageable with a stop associated with the other of the rotatable part 32 and the stationary part12, wherein the stop comprises a stop pin40 of hollow, substantially cylindrical form.
F16K 3/04 - 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 pivoted closure members
F16K 35/04 - Means to prevent accidental or unauthorised actuation yieldingly resisting the actuation
A check valve is described comprising a valve member (10) movable with a passage (12) provided in a housing (14), the passage (12) defining a seating surface (28) with which the valve member (10) is engageable to control fluid flow along the passage (12), biasing means (22) applying a biasing load to the valve member (10) urging the valve member (10) into engagement with the seating surface (28), and an environmental seal member (30) secured to the valve member (10) by a retainer member (36), the environmental seal member (30) being engageable with the seating surface (28), wherein the retainer member (36) includes a lip (48) elastically deflectable by the environmental seal member (30) upon compression and/or deflection of the environmental seal member (30) such that when the valve member (10) engages the seating surface (28), engagement of the environmental seal member (30) with the seating surface (28) results in compression and/or deflection of the environmental seal member (30), in turn causing deflection of the lip (48) of the retainer member (36) into engagement with the seating surface (38). Extrusion of the environmental seal member (30) between the retainer member (36) and the seating surface (28) can thus be reduced. Further, the engagement between the lip (48) and the seating surface (28) may be a sealing engagement, enhancing the sealing of the valve..
A valve is described comprising a valve seat (22) defining a first port (24) and a second port (26), an angularly movable valve member (28) having a first face (30) and a second face (32), the valve member (28) being movable between a closed position in which the first face (30) thereof, or a valve element (42) associated therewith, closes at least one of the ports (24, 26) and an open position, the valve member (28) defining a first flow passage (46) and a second flow passage (48), each flow passage (46, 48) communicating with a chamber (34) defined, at least in part, by the second face (32) of the valve member (28), wherein at least the first flow passage (46) defines or includes a flow director (54) to impart a circumferential or tangential component to the fluid flow therethrough.
F16K 3/04 - 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 pivoted closure members
An actuator comprises an axially moveable piston (16) coupled to a drive member (28) such that axial movement of the piston 16 drives the drive member (28) for angular movement, the drive member (28) being coupled via a clutch (32) to an output member (30), the output member (30) further being coupled by way of a cam arrangement (36, 38) with an override actuator (48), the cam arrangement being operable such that initial angular movement of the override actuator (48) relative to the output member (30) can drive the output member (30) for axial movement, disengaging the clutch (32), further movement of the override actuator (48) driving the output member (30) for angular movement.
F15B 15/02 - Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
F15B 15/06 - Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non-rectilinear movement
A valve gate button (21, 22) is disclosed comprising a contacting face for sealing a port (17, 18) of a valve seat (2), wherein the contacting face is flat and has a substantially straight flow control edge (2). A valve gate (4) is disclosed, comprising the valve gate button. A valve is disclosed comprising the valve gate button or valve gate.
F16K 3/10 - 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 pivoted closure members with special arrangements for separating the sealing faces or for pressing them together
patents
