Abstract: A valve arrangement for a pressurized fluid source includes a valve housing comprising an inlet, an outlet, and a main fluid channel extending along a longitudinal axis of the valve housing. The valve arrangement further includes a spool and a regulating poppet valve coaxially located in the main fluid channel. The spool and a regulating poppet valve are both configured to translate along the longitudinal axis of the valve housing independent of each other. In response to the spool moving to an open position, the poppet valve regulates the flow of a pressurized fluid flowing from the inlet to the outlet of the valve housing.

Abstract: A catheter has at least two irrigated ablation electrodes and a coaxial irrigation tubing to transport fluid to the electrodes by separate and dedicated flow paths. A valve is used to control flow of fluid into the coaxial irrigation tubing by means of a plunger assembly that allows fluid to flow through one lumen of the coaxial irrigation tubing while regulating the flow into the other lumen of the coaxial irrigation tubing in response to the fluid flow rate and pressure applied to the plunger assembly.

Abstract: Improved fluid supply assemblies for fluid systems are provided. In exemplary embodiments, the present disclosure provides for improved fluid supply assemblies and related features, systems and methods of use. More particularly, the present disclosure provides for advantageous faucet assemblies (e.g., electrically or mechanically actuated faucet assemblies) having an integrated anti-scald device and having an integrated temperature mixing valve. The present disclosure provides for a faucet assembly having an integrated temperature mixing valve, and/or having an integrated anti-scald device configured to stop the inlet flow of hot water in the event the mixed outlet water temperature exceeds a user-selected set point. Advantageous faucet assemblies of the present disclosure can prevent scalding as defined by ASSE 1070. Improved, convenient and effective systems and methods for utilizing improved faucet assemblies in fluid systems are provided.

Abstract: Pressure independent flow rate control valve, for placement in hydraulic systems between upstream inlet and downstream outlet ducts, including a first functional unit arranged between the inlet and outlet ducts, mobile equipment actuated manually or by an actuator for setting and modifying the orifice span of a fluid passage, and thus the valve flow rate, up to complete closure; and a second functional unit for maintaining the differential pressure constant between upstream and downstream of the first unit, and thus the set valve flow rate independently of pressure fluctuations in the hydraulic system. The mobile equipment includes main equipment and secondary equipment which can linearly translate with respect to the main equipment for presetting the maximum valve flow rate, the main equipment carrying integrally the secondary equipment and being linearly displaced by the actuator for modulating the fluid flow rate from the preset maximum one up to complete closure.

Abstract: Disclosed is a disposable filter capsule apparatus that incorporates integral quick connect components and check valves to facilitate assembly to, and dis-assembly from, larger assemblies and apparatus. The quick connect elements and valves are configured to eliminate the need for auxiliary sealing elements, e.g., o-rings and valve springs so as to prevent unwanted reactions with fluids and/or gases flowing through the capsules, and to further prevent the disposal of expensive re-usable elements in the disposable capsules.

Abstract: A housing for use in high pressure fluid applications comprises a first drilling having a region of enlarged diameter bounded by an upper boundary in a first plane and a lower boundary in a second plane; and a second drilling intersecting with the first drilling via an intersection region. The intersection region includes a first substantially flat surface which defines a ceiling of the intersection region and which intersects the upper boundary of the region of enlarged diameter, and a second substantially flat surface which is opposed to the first substantially flat surface and which defines a floor of the intersection region and intersects the lower boundary of the region of enlarged diameter. As the flat surfaces are in alignment with a region of maximum hoop stress they do not act as a significant stress raiser at the intersection.

Abstract: An apparatus and system are disclosed for a fuel receiver. The apparatus includes a base having an inlet and an outlet that defines an interior channel through which fluid is flowable. The apparatus also includes a first valve movable relative to the base between a closed position and an open position allowing fluid flow through the inlet. The apparatus also includes a second valve independently movable relative to the base and the first valve, the second valve movable between a closed position and an open position allowing fluid flow through the inlet. The system includes the apparatus, and a fluid reservoir or tank in fluid communication with the apparatus.

Abstract: A method for cleaning the seat of a double seat valve and the double set valve has a deflection surface bordering the remaining area of a recess not delimiting a circumferential wall and opens out from the latter at a front and radially insise end of a second closing member facing a first closing member.

Abstract: A double-seat valve device, with a valve seat region, includes a first circular cylindrical-shaped seat surface with a first diameter, which with a first sealing element forms a radial seal for a connection opening to a first housing part, and a second circular cylindrical-shaped seat surface with a second diameter smaller than the first, which with a second sealing element forms a radial seal for the opening to a second housing part. A third seat surface is arranged between the first and second surfaces. In a closed position of the first closing member, the contact region rests against the third seat surface, to form a solid-state stop for the contact region. A deflecting surface is arranged between the first and third seat surfaces. The deflecting surface has an outlet edge offset to the third seat surface. A direction vector at the outlet edge points away from the second sealing element.

Abstract: The invention relates to a device (100) for actuating a process valve that has a first cylinder and a second cylinder, comprising at least one first control valve arrangement (102) that has at least a connector for a line to the first cylinder of the double-seat valve, an intake-air connector and an exhaust-air connector, and comprising a second control valve arrangement (103) that has at least a connector for a line to the second cylinder of the double-seat valve, a connector for an intake-air line and a connector for an exhaust-air line, wherein separate exhaust-air lines (104, 105) are provided for the first and the second control valve arrangement (102, 103).

Abstract: An aseptic double seat valve has a housing, which has connections for two pipe conduits. A first valve seat and a second valve seat are arranged spaced apart from one another in the direction of a longitudinal axis in the housing between the connections for the two pipe conduits. A first closing body interacts in a sealing manner with the first valve seat, and a second closing body interacts in a sealing manner with the second valve seat. A first elongate valve stem, which is of hollow design is connected to the first closing body, and a second elongate valve stem, which extends through the interior of the first valve stem, is connected to the second closing body. A diaphragm, which has a radially inner opening, serves to seal off a gap present between the first valve stem and the second valve stem. An outer rim of the diaphragm is fixed in a sealing manner on the second closing body, and the inner rim of the diaphragm is fixed in a sealing manner on the first valve stem.

Abstract: A double set valve capable of seat cleaning has a drive and control unit integrated together. The drive switches the valve, and includes two closing elements moveable independently of each other and enclose a leakage cavity.

Abstract: The 4-way valve used to control the operation of a pneumatic motor can be pneumatically operated such as by a pilot valve. The pilot valve (20) works by creating a restriction at the high-pressure air/signal port (22) regardless of the pressure drop up-stream of the pilot valve (20) while still allowing for adequate flow once the valve (20) is actuated. An additional slide valve (24) is added to the pilot valve (20) that restricts the inlet 30 of the pilot valve (20) above the poppet valve (28) that creates a pressure drop, see FIG. 3. The extra pressure drop forces the valve (20) to snap open once the actuator pin (32) contacts the poppet valve (20) to create the hysteresis. Once the valve (20) snaps open, the slide valve (24) moves to uncover the high-pressure ports (22), removing the restriction to ensure that the main 4-way (10) fully actuates.

Abstract: A valve apparatus includes substantially co-aligned first and second valve seats and substantially co-aligned first and second valve members. The first valve member is moveable relative to the first valve seat between at least an open position in which the first valve member is spaced from the first valve seat and a closed position in which the first valve member is seated against the first valve seat. The second valve member is moveable relative to the second valve seat between at least an open position in which the second valve member is spaced from the second valve seat and a closed position in which the second valve member is seated against the second valve seat. An armature is operable for moving the first and second valve members, in response to a magnetic field generated by a coil.

Abstract: A cleaning system for cleaning one or more valve seats in a valve and for cleaning one or more interior surfaces of said valve with a cleaning agent, where said cleaning system are preferably arranged in a mixproof valve (1) consisting of at least a valve body (2), one or more valve seats (5, 9), a first valve plug (4) with a first stem (6) and a second valve plug (8) with a second stem (10), the second valve plug having a central hollow part (11) for guiding the first stem. Said cleaning system has nozzle means (17) for creating two different spray patterns, said nozzle means being arranged between and/or on the first stem and the hollow central part of the second valve plug, where a first spray pattern is primarily used for cleaning the interior surfaces of said valve and where a second spray pattern is primarily used for cleaning one or more of said valve seats, while the valve is open between a product area (14) and a drain area (15).

Abstract: A multi-piece valve disk of a sliding and/or seat valve, a ring seal with an elastic sealing ring with an external sealing zone is placed in a ring groove of the valve disk onto a dimensionally stable backup ring, and where an elastic restoring region effectively positioned between the backup ring and the external sealing zone is arranged in the backup ring, the restoring region being embodied in one piece with the sealing ring of its material adjacent to the external sealing zone of the sealing ring.

Abstract: A double seat valve for separating media includes a housing having a first connector for a first pipeline and a second connector for a second pipeline, a first closing member of the first connector and a first closing member seat assigned thereto, the first closing member in closed position cooperating in sealing manner with the first closing member seat via at least one sealing element, a second closing member of the second connector axially spaced from the first closing member, and a second closing member seat assigned to the second closing member, the second closing member in closed position cooperating in sealing manner with the second closing member seat via at least one sealing element. The two closing members can be lifted independently of one another from their respective closing member seats. A leakage space is also provided between the two closing members and discharges into a leakage outlet.

Abstract: A double seat valve having a seat for cooperation with two valve disks which are linearly adjustable relative to each other and together relative with respect to the seat, for a seat valve function and a sliding valve function, each of the valve disks containing a ring seal with an elastic sealing ring in a ring groove, both sealing rings being manufactured with the same shapes and dimensions, each sealing ring being positioned in the ring groove with a backup ring, and both sealing rings being arranged in rotational positions differing with respect to the respective sealing function relative to the direction of adjustment of the valve disks.

Abstract: A double check valve (10) with two separate elements (20, 25) individually movable to close the valve and collectively movable to open the valve. The separate elements are independently closing the valve, and collectively controllable to open the valve, to allow pressure release or to allow injection of fluid (e.g. lubricant). In an example, the double check valve includes two separate check valves with a stinger element (30) between them which is operable to internally sting the one check valve when (e.g. by action of) the other check valve is stung by a user (e.g. using a stinger means) thereby to open both check valves individually and the double check valve as a whole.

Abstract: A non-magnetic latching servo actuated valve under the control of a controller comprising a motor in rotational communication with a lead screw. The lead screw advances or retracts a valve stem connected to a valve stem cap. The valve stem cap has a valve stem cap passage. A valve end cap having a valve seat is provided and receives the valve stem cap such that the valve stem cap can contact the valve seat. A pressure relief device or shuttle assembly is positioned internal to the valve stem cap. The shuttle assembly is used for venting build-up downstream pressure through the non-magnetic latching servo actuated valve outlet, through the valve stem cap passage, around the shuttle assembly, through passages, into a pressure chamber, and to the nonmagnetic latching servo actuated valve exit where the fluid vents until the system is in balance.

Abstract: A cleaning arrangement (15, 26) for cleaning the drain area (13, 14) of a valve (1) with a cleaning media, where the cleaning arrangement includes at least one cleaning device (15, 26), which is preferably arranged in a mix proof valve (1) comprising at least a valve body (2), one or more valve seats (4, 7), a first valve plug (5) with a first stem (6) and a second valve plug (8) with a second stem (9), the second valve plug (8) having a central hollow part (10) for guiding the first stem (6), where the at least one cleaning device (15, 26) is rotationally arranged inside the valve housing (2), where the at least one cleaning device (15, 26) is rotated by the pressurized cleaning media and where the at least one cleaning device (15, 26) is provided with a screen arrangement (18) creating a spray of cleaning media for cleaning the drain area (13, 14) of the valve (1).

Abstract: The invention relates to a seat cleaning-capable double-seat valve (1) with two serially arranged closing elements (3, 4), moveable relative to each other and designed as slide pistons, which border both in the closed and open position of the double seat valve (1) a leakage cavity (9), which is connected with the surroundings of the double-seat valve (1) via a tubular shaft (4b/4c) arranged on a low-lying (with respect to a vertical normal position of the double-seat valve (1)), second closing element (4), in which a drainage hole (4d) is arranged. The second, independently driven closing element (4) is thereby designed larger than the first, independently driven closing element (3) so that, as a result, the double-seat valve (1) opens downward and the drainage of the leakage cavity (9) also takes place downward.

Abstract: The Valve device comprises two paths communicating depending on the position of a movable valve which includes a first and a second flap one of which being hollow. A third flap is freely mounted between the first and the second flaps assisting either the first and second flap in sealing either path.

Abstract: A drive device for a double seat valve having, between flow paths, a seat and first and second valve disks, where first, second and third pistons movable in a sealed manner by alternating pressure pulses for initiating an opening cycle and cleaning cycles of the valve disks each are provided in a drive device housing, where the pistons can be selectively connected with valve disk couple elements so as to transmit movements. Pressure transmission paths lead into the drive device housing to chambers defined by the pistons, the second piston being guided in a sealed manner separate from the first piston in the drive device housing, sealing areas of the first and second pistons define a first chamber in the drive device housing, and at least one pressure transmission path leads, for the cleaning cycle of the second valve disk, laterally and transversely to the common axis of the drive device housing and the valve chamber at least directly into the first chamber.

Abstract: A device for driving a double seat valve with two closing elements arranged in series and displaceable with respect to each other. A sleeve-shaped fourth drive piston pressurized by pressure medium, sealingly embraces a second drive piston on the circumference and can engage a catching connection in the direction of a first drive piston, wherein a second drive piston is adapted to be axially displaceable in a limited manner in both directions with respect to the first drive piston and in each case against the force of a second spring.

Abstract: The invention relates to a double-seat valve including closing elements (3,4) which can be transferred independently of one another by a respective partial lift gap-wide into a seat cleaning position for purposes of flushing their coaxial seat surfaces (2a, 2b), the second closing element (4) by a second partial lift (T2) which acts in the same direction as the opening motion and the first closing element (3) by a first partial lift (T1) which acts in the direction opposite the opening motion travelling into its respective seat cleaning position. The second closing element (4) in its closed position has a stop face (4f) forming a second circumferential edge (U2). A deflection surface (4d) discharges in a front face (4e) of a recess (4b) which is oriented essentially perpendicular to the longitudinal axis of the second closing element (4). The deflection surface (4d) has a contour (K) which runs without bends.

Abstract: The invention relates to a double seat valve capable of cleaning the seat and having a cleaning device for a housing penetration critical for cleaning, According to the invention, a double seat valve of generic type ensures cleaning of the housing penetration of the pipe shaft or the pipe shaft expanded into a pressure compensation piston of the independently driven first closing element, starting from the valve housing part to an axial extension length of at least the entire opening stroke of the double seat valve, and the related relevant prior art is thus improved. This is achieved according to the invention in that, when a first closing element (3) is moved downward by the first partial stroke (T1), a freely penetrable ring gap (S21) is formed between an outer surface (K) of the pipe shaft (3b/3c) and a first rod seal (21) disposed in the first valve housing part (1a).

Abstract: A double-seat valve having a seat-cleaning function, wherein the double-seat valve opens downward, and the two closing elements can be moved independently of each other by a partial lift in each case gap-wide into a seat cleaning position for the purpose of cleaning their seat such that the dependently driven second closing element is pushed into its respective seat cleaning position by a second partial lift in the same direction of the opening movement, and the independently driven first closing element is pushed into its respective seat cleaning position by a first partial lift in the direction counter to the opening lift.

Abstract: A safety relief fill valve adapted to being an interface for filling and relieving excess pressure from a closed fluid system. An insert shell retains a piston member for movement between fluid input and fluid holding configurations, the piston member being resiliently biased toward fluid holding configuration. When in fluid holding configuration, the piston member sealingly engages an inlet bore of the insert shell. When in fluid input configuration, the piston member allows fluid flow through the inlet bore. A housing receives the insert shell, thereby limiting relative axial movement and forming a cavity between a portion of the housing the insert shell. This cavity provides mechanical guidance and a flow channel for an overpressure relief system having fluid retaining and fluid relief configurations, the overpressure relief system being elastically biased toward fluid retaining configuration. The elastic bias is overcome responsive to excess pressure within the closed fluid system.

Abstract: Some water drain valves tend to fill with water which may freeze, thereby jamming the valve. This invention provides an aircraft water drain valve comprising a passageway, a shaft, a first sealing member and a second sealing member. The shaft is moveable between an open position in which the first and second sealing members are arranged to allow free passage of fluid through the passageway, and a closed position in which both the first and second sealing members are arranged to prevent free passage of fluid through the passageway thereby preventing ingress of fluid into the region between the first and second sealing members. Thus water may be hindered from collecting and freezing in the part of the valve close to the cold wall of the fuel tank.

Abstract: The invention relates to a double seat valve which is capable of cleaning the seat. The double seat valve includes a closing element (4), when in its closed position rests with a stop surface (4e), arranged on a boundary surface thereof radially adjacent on an inner side to a seal (7), on a second seating surface (2b) and directly adjacent to a first seating surface (2a, 2g) with a central recess (4d) provided in a front face of the closing element (4) facing a leakage cavity (5). The closing element (4) further includes a deflector surface (4b) opening in a front face (4c), wherein the deflector surface (4b) and the slop surface (4e) form a circumferential edge (U2) directly adjacent to a first end section (2g) of the first seating surface (2a) in the closed position of the closing element (4).

Abstract: A valve assembly has a valve body having an upper portion defining an upper chamber having an upper valve seat, and a lower portion defining a lower chamber having a lower valve seat, with an intermediate seat region between the upper valve seat and the lower valve seat. An upper valve stem is movable between a closed position seated against the upper valve seat and an open position spaced apart from the upper valve seat, and a lower valve stem is movable between a closed position seated against the lower valve seat and an open position spaced apart from the lower valve seat. A blocking ring is disposed in between the upper valve stem and the lower valve stem, and in contact with the intermediate valve seat. When the upper valve stem is open and the lower valve stem is closed, fluid escaping the upper chamber impinges on the blocking ring. When the upper valve stem is closed and the lower valve stem is open, fluid escaping the lower chamber impinges on the blocking ring.

Abstract: The invention relates to a dosing device having an inlet for a liquid to be delivered to a container as a dose, in particular a beverage. The device comprises a valve seat, a sealing element interacting with the valve seat and an outlet for the dose of the liquid. In order to reduce foam build-up upon delivering the liquid into the container, according to the invention the sealing element can be moved to a first and a second opening position, wherein, in the second opening position, the flow cross-section area between the valve seat and the sealing element is larger than in the first opening position. In addition, the invention relates to a dosing method comprising the supplying of a liquid to a valve which is moved to a first and second opening position.

Abstract: In a non-return valve having a first closing body and a related first valve seat, and a second closing body and a related second valve seat, according to the invention the first and second valve seats are designed on a single valve seat component and the second valve seat is designed so as to surround the outside of the first valve seat.

Abstract: A high flow service valve is provided that does not rely on the use of a valve core. The high flow service valve allows a condensing unit to be evacuated and charged very quickly. The high flow service valve utilizes a second movable obturator positioned at least partially in the valve body having a first position wherein a charge passageway is fluidly connected to a charge port and a second position wherein the charge passageway is fluidly disconnected from the charge port.

Abstract: A combination valve assembly comprises an inner valve nested within an outer valve. The outer valve comprises a housing and a closure, permitting full closure of the valve assembly. The inner valve comprises a housing and a closure, permitting flow control by the inner valve within requiring movement of the outer valve. The housing of the inner valve is keyed to the outer valve closure, so that movement of the outer valve closure rotates the inner valve housing and closure simultaneously.

Abstract: An individual hydration unit includes a bag having a first chamber and a second chamber, the first chamber is connected with a first hose and the second chamber is connected with a second hose. A regulator is connected to the first and second hoses and connected to a third hose. The regulator includes a cylindrical body which has a first passage, a second passage and a third passage. An operation rod is rotatably inserted in the body and includes two first paths, two second paths, a third path and two fourth paths. The first, second, third and fourth paths are in communication with each other. By rotating the operation rod, the first, second and third passages are controlled to be opened and/or closed so as to mix the liquids in the two chambers as desired. A connection assembly is attached to the body for convenience of carried.

Abstract: The invention relates to a flow adjustment valve (1) comprising a valve housing (2) having a flow channel (3) in which a throttle unit (4, 11) having an adjustable throttle element (11) and a shut-off unit having a shut-off element (4) which blocks the flow channel (3) in a closed position are arranged, the shut-off element (4) being actuatable from the outside by means of a handle (16). The aim of the invention is to simplify the handling of a flow adjustment valve of the aforementioned type. For this purpose, the throttle element (11) can also be actuated by means of the handle (16).

Abstract: Two independent poppets/valves that open and close independently as a quick connect coupling is mated and unmated are employed as part of a cooling system for high end data processing systems. More particularly, the present invention comprises a quick connect poppet valve having two internal, independently functioning sealing seats therein disposed within a serially connected flow path to prevent leakage and to minimize the effects of debris.

Abstract: The present invention relates to a two-stage valve for controlling fluids, in particular a hydraulic fluid. The valve includes an actuating element, a pilot stage having a first valve seat and a first closing body, which is connected to the actuating element, and a main stage having a second valve seat and a second closing body. The second closing body is provided with a fastening region and a main region having a passage opening. The first valve seat is arranged at the passage opening. The second closing body is connected to the actuating element via the fastening region. The fastening region is designed elastically in such a way as to open the pilot stage by elastically deforming during actuation of the actuating element.

Abstract: A pipe branching arrangement, in particular for a tank farm system, comprises an at least approximately vertically extending hollow body which has at least one lateral connector, further comprising at least one mixproof valve which sits on the connector and produces a closable connection between the hollow body and at least one pipeline. The valve has two closing members, between which there is a leakage space which has a leakage outlet opening, the leakage space having a circumferential wall which extends from an inlet on the connector side to the leakage outlet opening on the outlet side, which is at a distance from the inlet. The circumferential wall has a decline on the gravitational force side of the leakage space in direction to the leakage outlet opening.

Abstract: The invention relates to a double seat valve with cleanable seats, the valve including first and second closing elements (3, 4) and a leakage cavity (5). An intermediate seal (8) seals the closing elements (3, 4) in their opening and closing movements and in the open position against each other, is arranged in the second closing element (4). The second closing element (4) abuts in its closed position at a transition area (2e, 2e*) with a stop face (4e) arranged at a front face of a cylindrical lug (4*) and that directly adjacent to a first seat (2a, 2g), a central recess (4d) is provided in a front face of a second cylindrical lug (4*).

Abstract: A double seat valve includes a flow barrier element arranged between first and second closing elements. The flow barrier element shadows a first sealing element and/or a first closing element seat of the first closing element which is in a closed position, when the second closing element is lifted and when a cleaning medium is applied to a leakage space, the flow barrier element preventing the cleaning medium from flowing directly against the first sealing element and/or the first closing element seat. The flow barrier element also shadows a second sealing element and/or a second closing element seat of the second closing element which is in a closed position, when the first closing element is lifted and when a cleaning medium is applied to the leakage space, the flow barrier element preventing the cleaning medium from flowing directly against the second sealing element and/or the second closing element seat.

Abstract: A double seat valve in which a second closing element (4), in its closed position, rests with a stopping surface (4f) on a face of its cylindrical projection (4*) directly upon a first seat (2a) and, together with a peripheral wall (4c, 4h), forms a second wraparound edge (U2) upon an interface (2e, 2e*). The peripheral wall (4c), at its end facing away from a first closing element (3), merges into a rotationally symmetric reversing surface (4d) that leads to a face (4e) of a recess (4b) oriented essentially perpendicular to the longitudinal axis of the second closing element (4). In meridian section, the reversing surface (4b) has a contour (K) with a bend-free curve, a direction vector in the leading point of the reversing surface (4d) points into a discharge borehole (3d, 3d*) central in the first closing element (3) without colliding with the first closing element (3) in the vicinity of its areas bordering the leakage cavity (5) and forming dynamic pressure.

Abstract: A valve apparatus has a valve (1), an actuator (2) and a leakage sensor (3). A body (4) of the valve has first and second valve chambers (6, 8) connected to respective valve ports (10 & 12, 14 & 16) and joined by an intermediate passage (18). The valve can be set by the actuator to any one of three valve configurations. In an ‘open’ configuration the intermediate passage is open to interconnect the first and second chambers. In a ‘closed’ configuration, the intermediate passage is closed by first and second seals (24, 26) seated at respective locations in the passage to seal respectively between the first and second chambers and a leakage chamber (28) at the portion of the intermediate passage between the two seals. In a ‘cleaning’ configuration one of the seals is unseated to connect a respective one of the first and second chambers to the leakage chamber, while the other seal remains seated.

Abstract: A non-magnetic latching servo actuated valve under the control of a controller comprising a motor in rotational communication with a lead screw. The lead screw advances or retracts a valve stem connected to a valve stem cap. The valve stem cap has a valve stem cap passage. A valve end cap having a valve seat is provided and receives the valve stem cap such that the valve stem cap can contact the valve seat. A pressure relief device or shuttle assembly is positioned internal to the valve stem cap. The shuttle assembly is used for venting build-up downstream pressure through the non-magnetic latching servo actuated valve outlet, through the valve stem cap passage, around the shuttle assembly, through passages, into a pressure chamber, and to the non-magnetic latching servo actuated valve exit where the fluid vents until the system is in balance.

Abstract: A valve assembly (100) has an inlet port (104) and an outlet port (106) linked by a fluid conduit (102) for allowing fluid to pass therebetween. The valve assembly includes a stop valve having a spindle (112) that is centrally mounted within the valve assembly and a valve head (108) mounted on the spindle (112). The stop valve spindle (112) is operable to move the stop valve head (108) between an open position, in which the inlet port (104) is in communication with the outlet port (106), and a closed position, in which the outlet port is isolated from the inlet port. Also provided is a control valve having at least one spindle (114) that is eccentrically mounted within the valve assembly and a valve head (110) mounted on the at least one control valve spindle (114).

Abstract: The present invention relates to a two-stage valve for controlling fluids, in particular a hydraulic fluid, The valve includes an actuating element, a pilot stage having a first valve seat and a first closing body, which is connected to the actuating element, and a main stage having a second valve seat and a second closing body. The second closing body is provided with a fastening region and a main region having a passage opening. The first valve seat is arranged at the passage opening. The second closing body is connected to the actuating element via the fastening region. The fastening region is designed elastically in such a way as to open the pilot stage by elastically deforming during actuation of the actuating element.

Abstract: An aseptic valve device for the separation of hostile media including a housing which has connection pieces, each of specific opening cross section, for at least two pipelines which can communicate with one another in the housing via a connecting orifice of specific opening cross section, and a valve arrangement for the selective closing and release of the connecting orifice, the valve arrangement having at least one valve seat and at least one valve disk, the valve disk having a sealing face cooperating with the valve seat and a middle connecting portion which is connected to a valve stem, and the valve disk having a tubular extension which serves for the outflow of a medium, and a drainage portion extending obliquely or orthogonally with respect to the plane spanned by the sealing face of the valve disk and has a plurality of drainage orifices.

Abstract: A double seat valve for separating media includes a valve housing which has connectors for a first pipeline and a second pipeline, a first closing element and a first closing element seat which is assigned to the latter, where the first closing element is in seal-forming abutment, in its closed position, with the first closing element seat via at least one sealing element, and a second closing element which is spaced apart axially from the first closing element, and a second closing element seat which is assigned to the second closing element, where the second closing element is, in its closed position, in seal-forming abutment with the second closing element seat via at least one sealing element, where the two closing elements can be lifted independently of one another from their respective closing element seat, and where a leakage space is provided between the two closing elements.