Abstract: A valve assembly includes an actuator adapted to drive movement of a valve member. The valve assembly also includes a bonnet coupled to the actuator, a valve body coupled to the bonnet, and a fluid end coupled to the valve body. The valve assembly further includes a quick connection system adapted to couple the fluid end to the valve body. The quick connection system includes a plurality of valve body lugs separated by a plurality of spaces, the plurality of valve body lugs extending radially outward from an axis. The quick connection system also includes a plurality of fluid end lugs configured to interact with the plurality of valve body lugs, the plurality of valve body lugs being arranged to axially align with the plurality of fluid end lugs to block axial movement of the fluid end with respect to the valve body.

Abstract: A linear actuator (1) comprising a first part (3) and a second part (5) is disclosed. The first part (3) is arranged to rotate along with a rotating part (4) of a motor (2), and the second part (5) is arranged to drive an actuated part (18, 22). A coupling (6) interconnects the first part (3) and the second part (5) to allow the second part (5) to rotate along with the first part (3) at the same angular velocity as the first part (3). The coupling (6) defines a fit tolerance between the first part (3) and the second part (5) allowing the first part (3) to rotate a predefined distance before engaging the second part (5) and rotating the second part (5) along with the first part (3). The fit tolerance ensures that the first part (3) reaches a certain angular velocity and thereby that the resulting torque transfer from the first part (3) to the second part (5) is sufficient, e.g. to release the actuated part (18, 22) from a pre-tensioned state.

Abstract: An actuator for a magnet valve, the actuator including a housing including a terminal wall including an opening; and an armature arranged in the housing and movable in an axial linear manner between a first end position and a second end position, wherein the opening is closed by a terminal cover, wherein the terminal cover includes a contour that protrudes at least in a direction towards the armature, and wherein the contour includes a first section that defines the second end position of the armature.

Abstract: A refrigerant metering system/method incorporating a manual expansion valve (MEV), condenser isolation valve (CIV), flow isolation valve (FIV), and evaporator isolation valve (EIV) is disclosed. The MEV is configured to replace a conventional automated expansion valve (AEV) that controls a refrigerant flow valve (RFV) that is positioned in a heating, ventilation, and air conditioning (HVAC) system between a refrigerant condenser coil (RCC) and a refrigerant evaporator coil (REC) and permits manual metering of refrigerant by the RFV from the RCC to the REC and also allows complete shutoff of refrigerant flow by the RFV from the RCC to the REC. The MEV allows rapid HVAC repair and restoration of service where a replacement AEV is not readily available. The CIV/FIV/EIV are positioned in the refrigerant flow lines to permit the AEV and/or REC to be isolated from HVAC refrigerant flow for repairs to the AEV and/or REC.

Abstract: In a control unit of an electromagnetic valve system, a safety circuit includes a first switch and a second switch for switching, by control from a control circuit supply and shutdown of power from a drive power supply to an electromagnetic valve drive circuit. A common line extends to a plurality of electromagnetic valve units and is connected to one end of a plurality of solenoids. A plurality of power lines are connected to the other end of each of the plurality of solenoids. The electromagnetic valve drive circuit includes a plurality of open/close switches for switching, by control from the control circuit, supply and shutdown of power to the plurality of solenoids.

Abstract: An actuator assembly includes a unitary actuator housing defining a plurality of actuator cavities each extending along a central axis from an upper surface of the actuator housing to a lower surface of the actuator housing. A plurality of actuating members are each disposed in an upper counterbore portion of a corresponding one of the plurality of actuator cavities and movable within the corresponding actuator cavity. A plurality of output shafts each extend through a lower bore in a corresponding one of the plurality of actuator cavities, with each output shaft being driven by a corresponding one of the plurality of actuating members.

Abstract: A high-pressure valve assembly includes a valve body, a unibody choke valve stem, and a unibody choke valve seat having surface hardened wear surfaces formed thereon. The wear surfaces formed are interacting wear surfaces, as with tribological applications. The wear surfaces are hardened using a boronization process or a thermal spray application process. The boronization process is performed using discrete parameters to obtain one of a minimum depth of deposited boronization elements and a desired measured surface hardness value.

Abstract: A servo valve comprises a valve housing, a cavity formed in the valve housing and a member disposed in the cavity and axially-moveable therein. The servo valve further comprises a piezoelectric actuator configured to axially move the member, relative to the valve housing, between first and second axial positions.

Abstract: A fluid supply system includes: a coupling manifold disposed in parallel to mutually facing end portions of the multiple-unit manifolds that are adjacent to each other; a first fluid control device connecting one of the end portions of the multiple-unit manifolds that are adjacent to each other to the coupling manifold; and a second fluid control device connecting the other one of the end portions of the multiple-unit manifolds that are adjacent to each other to the coupling manifold, in which the coupling manifold has a communication passage that establishes communication of combined flow passages of the multiple-unit manifolds that are adjacent to each other via the first and second fluid control devices.

Abstract: The instant disclosure is related to fluidic distributors, fluidic systems, and associated methods and articles. Certain embodiments are related to fluidic distributors that comprise bays including fluidic connections with relative positions that substantially correspond to each other. In some embodiments, a fluidic distributor may comprise bays with electrical interfaces with relative positions that substantially correspond to each other.

Abstract: The present invention allows the number of components to be reduced and assembly work to be easily performed. A cylinder drive manifold device that constitutes a cylinder drive apparatus is provided with a block-shaped manifold in which a plurality of holes are formed for circulating a fluid used for driving a plurality of fluid pressure cylinders. The manifold is configured such that a plurality of switching valves for supplying a fluid alternately to a first cylinder chamber and a second cylinder chamber of each of the fluid pressure cylinders are attachable. A plurality of check valves and a plurality of throttle valves are incorporated into the plurality of holes of the manifold.

Abstract: Method and apparatus for adjustable fuel pressure module. In accordance with an embodiment of the present invention, an apparatus for regulating fuel pressure comprises a body configured to mate to a fuel filter housing, a spring seat assembly configured to seal an opening in the fuel filter housing according to a force applied by a pressure regulating spring acting on the spring seat assembly, and a pressure regulating spring adjusting assembly mounted to the body, configured to constrain an adjustable length of the pressure regulating spring, wherein the spring is constrained between the spring seat assembly and the pressure regulating spring adjusting assembly. A force exerted upon the spring seat assembly by the pressure regulating spring corresponds to a desirable fuel pressure. The spring seat assembly is configured to unseal the opening in the fuel filter housing responsive to a fuel pressure greater than the desirable fuel pressure.

Abstract: A high pressure valve includes a lever and a variable force generator for facilitating control of opening and closing the valve at high pressures. The high pressure valve includes a housing having a chamber providing fluid communication between a first port and a second port, a pin movable within the chamber between an open position and a closed position. A first end of a lever is coupled to the pin and a second end of the lever is coupled to a variable force generator. The lever pivots about a pivot point. A controller coupled to the variable force generator is configured to adjust a force applied to the second end of the lever by the variable force generator to control the movement of the pin between the open position and the closed position.

Abstract: A mass flow control apparatus having a monolithic base. The monolithic base has a gas inlet, a gas outlet, a first flow component mounting region, a second flow component mounting region, and a third flow component mounting region. The first flow component mounting region has a first inlet port and a first outlet port, the first inlet port being fluidly coupled to the gas inlet of the monolithic base. The third flow component mounting region has a first sensing port fluidly coupled to the gas outlet of the monolithic base.

Abstract: A control device has a plurality of modular control sections (12a-12d), which form a control block when arranged beside one another and have units of an electromagnetically actuatable actuator system and/or of a sensor system for controlling or monitoring a valve apparatus, which are connected to a central energy supply and/or monitoring device, which have individual connection parts (20a-20d) assigned to the particular control section (12a-12d), and which are connected in series and to one another. At least some of the connection parts (20a-20d) used are wirelessly in direct engagement with one another by way of their plug parts (22a-22c) and socket parts (24a-24c) that face one another and are adjacent to one another.

Abstract: A servo valve includes a valve housing, a cavity formed in the valve housing defining an axis (X) and an axially moveable member disposed in the cavity. The member comprises flat surfaces parallel to the axis (X). A channel is formed within the cavity and a plurality of ports each forming a fluid passage through the valve housing in fluid communication with a spool and with the channel. The plurality of ports include first and second nozzles with nozzle openings, wherein in a first axial position of the member the first nozzle opening is at least substantially obstructed by the first flat surface, and in a second axial position of the member the second nozzle opening is at least substantially obstructed by the second surface, the member controlling fluid between the spool and the channel.

Abstract: Embodiments of a normally open gas valve are disclosed herein. The normally open gas valve includes a valve plug that gradually or partially disengages from the valve seat such that the actuation power required to open the valve is substantially reduced. The force required to open or close the valve is also reduced through the use of an off-center lever arm that multiplies the force applied by the armature of the actuation means. In this way, a less expensive actuation means, e.g., a less expensive solenoid, is able to be used to actuate the normally open gas valve.

Abstract: A connecting piece for connecting a hollow electric conductor and a coolant line includes a fluid-tight housing (1) having a hollow inner space; a hollow conductor opening (2) in the housing (1); a coolant line opening (3) in the housing (1); and an electrically insulating separating element (4). The inner space hydraulically connects the hollow conductor opening (2) and the coolant line opening (3). The housing (1) includes a coolant line-side housing part (5) and a hollow conductor-side housing part (6). The separating element (4) is arranged between the coolant line-side housing part (5) and the hollow conductor-side housing part (6), and has a coolant channel (7). The separating element (4) is formed as a ball.

Abstract: A cylinder container for storing and transporting a fluid, which is configured such that the same can store and transport a fluid, and can discharge the stored fluid at a configured discharge pressure under a configured condition. More specifically, the cylinder can have a fluid pressure adjustment valve installed on the cylinder container for storing and transporting a fluid such that a stored fluid can be discharged at a configured discharge pressure under a configured condition, the fluid pressure adjustment valve being configured such that the fluid storage capability of the cylinder container for storing and transporting a fluid can be improved.

Abstract: A control assembly that is configured to operate large, heavy duty flow controls. The control assembly may include a main support and a thin plate disposed on the main support, the thin plate having four sides forming a mounting surface, the thin plate also having lateral slots that extend lengthwise in a first direction between two of the sides and are arranged so adjacent lateral slots are spaced apart from one another in a second direction perpendicular to the first direction.

Abstract: A modular assembly for a wellhead has a housing and a plurality of modular cartridges. The housing connects with a studded or flanged connection to the wellhead, which can have a tubing adapter, casing hanger, etc. The modular cartridges can interchangeably stack in the housing's internal pocket so that the bores of the stacked cartridges configure the through-bore of the assembly communicating the wellhead with external components, such as flow lines, capillary lines, etc. The modular cartridges include a spacer cartridge, a hanger cartridge, a valve cartridge, and a cross cartridge. The spacer cartridge can be used to space other cartridges in the internal pocket, and the hanger cartridge can be used to support capillary strings and/or velocity strings in the wellhead. The valve cartridges have valve elements that can be opened and closed by bonnets that affix externally to the housing.

Abstract: An electromagnetic valve has an armature (22) movable along an axial direction in a valve housing (14) as a reaction to current flowing through a stationary coil (16) and which at one axial end has a sealing member (28) designed to interact with a valve seat (32) assigned to a first valve inlet (P), wherein at least one second valve inlet and/or outlet (A, R) in the valve housing can be opened to the first valve inlet (P) by action of the armature, and wherein the sealing member is provided as sealing bodies (28) on a portion (26) of the armature of narrowed diameter, such that the sealing body having a larger diameter compared to the narrowed portion can be moved by movement of the armature between sealing positions formed at both axial ends of the sealing body, wherein the sealing body (28) is a component separate from the narrowed portion and/or releasable therefrom and has a sealing portion (42) made of a polymer and/or rubber material, and also a support portion (40) made of a material different than and

Abstract: A solenoid device includes a yoke, a core, a shaft, a bobbin, a coil, a plunger, a lid, and a housing. A housing body part of the housing has a first opening; a cylindrical first inner wall part having a first step part extending toward the outer side in the radial direction; and a cylindrical second inner wall part having a second step part extending toward the outer side in the radial direction. A first cylindrical part has a first flange part. The outer diameter of the first flange part is larger than the inner diameter of the first inner wall part and smaller than the inner diameter of the second inner wall part. A circumferential end part of the first flange part contacts the second step part. The lid is non-magnetic, and a circumferential edge part is held between the first step part and the first flange part.

Abstract: A mass flow control apparatus having a monolithic base. The monolithic base has a gas inlet, a gas outlet, a first flow component mounting region, a second flow component mounting region, and a third flow component mounting region. The first flow component mounting region has a first inlet port and a first outlet port, the first inlet port being fluidly coupled to the gas inlet of the monolithic base. The second flow component mounting region has a second inlet port, a second outlet port, and a first auxiliary port.

Abstract: A fluid dispenser system is disclosed that can have a plurality of dispensers, each having a valve. Each valve can be connectable in series with another valve. The dispenser system can include a manifold permitting passage of a common fluid therethrough. Any of the valves connected to two adjacent valves can be removable without removing either of the valves to which it is connected. The common fluid can have a fluid pressure associated therewith. The fluid pressure can generate a tension force for pushing two adjacent valves apart and thereby lock the valves into a series connection. A method of removing a valve from a series of valves comprises stopping flow of the common fluid through the manifold, thereby releasing the tension force. The valve intended to be removed can be rotated, and thus removed with respect to the valve intended to be left in the series connection.

Abstract: Disclosed herein is a device for injecting pressurized alcohol solution into a pipe located in a house or other structure that carries water. The device allows the user to control and adjust the pressure of the injected alcohol solution. The pressure forces the alcohol solution against the frozen water inside the pipe. The alcohol solution then acts to dissolve the ice, thereby clearing the blockage and preventing damage to the pipe. The device is hand held, portable and configurable. The embodiment of the device with the hand-operated pump does not require electricity or other sources of power. Alternate embodiments of the device can be broken down into two or more sections for easier storage. Alternate embodiments of the device has one or more of the lengths of connecting pipe or connector or adapter bends at an angle so that the device is not configured in a straight line but has a bend or curve. These alternate embodiments allows for the device to fit into tight or restricted spaces.

Abstract: A valve arrangement for a fluidic supply of a fluid load, with several main valves designed for influencing fluid flows at the fluid ports, and with electrically controllable pilot valves designed for fluidic control of the main valves. A base body is assigned a connection plate lying opposite a connection face and having a fluid passage which leads into an operating port for the connection of a fluid load wherein, between the connection face and the connection plate there is provided a separate passage body which has at least one connection passage for a fluidically communicating link between at least one of the fluid ports and the operating port, and at least one connecting conduit for a fluidic coupling of at least two fluid ports.

Abstract: A multi-port valve having a longitudinal axis and a solenoid coil wound about a bobbin. Coaxially aligned with the longitudinal axis is an armature, at least partially disposed within the bobbin. The armature is coupled to a valve member that forms a sealing relationship with at least one valve orifice. A two-piece can having a first can component and a second component that cooperate to define an interior region. The solenoid coil, bobbin, pole piece, and at least part of the armature are disposed in the interior region of the two-piece can. The second can component is adjustably threaded to the first can component such that a longitudinal dimension of the interior region of the two-piece can may be adjusted to vary the size of a gap between the pole piece and the armature.

Abstract: The faucet of cartridge has an expandable temperature regulating rod in the main body. The temperature of water is regulated by changing the ratio of cold water and hot water by the movement of the temperature regulating rod. The water can be switched on or off by rotating the main body with respect to the seat. The main body includes an outer body, an inner body, and an anti-leaking element. The anti-leaking element is sandwiched between the outer body and the inner body to partition the space therebetween into two channels for cold and hot water to flow into the inner body.

Abstract: A low speed spool multispeed transmission includes an input shaft configured to connect to a low pressure spool gearbox, a gear system connected to the input shaft and configured to convert an input speed of the input shaft to an output speed within a predetermined speed range, wherein the gear system includes a plurality of gear states to change the ratio between the input speed and the output speed, and an output shaft connected to the gear system to be rotated by the gear system at the output speed, the output shaft configured to connect to a generator. The input shaft and the output shaft can be coaxial.

Abstract: Methods, systems and apparatuses for providing high electrical resistance for an upper control assembly (including control handles) of an aerial lift are provided through an isolation member that is integral to the upper control assembly and interposed between fluid lines in the control assembly and a set of fluid conduits that extend from the control assembly towards other portions of the aerial lift. The isolation member is a dielectric element that comprises a manifold that is made of material that is substantially electrically non-conductive, and that has a plurality of through-holes or hoses configured to allow hydraulic fluid to flow through the isolation member into and out of the fluid lines and conduits. These methods, systems and apparatuses are preferably used in upper control assemblies of aerial platforms that can carry one or more operators in order to prevent such operators from electrocution when controlling the lift.

Abstract: The invention is directed to a device (2) for regulating the pressure and/or flow of pressurized gas, comprising a body (4) with a gas inlet (6), a gas outlet (8) and a gas passage (10, 26) connecting the outlet (8) with the inlet (6), a gas shut-off device comprising a seat (22) in the passage (10) and a movable closure element (24) cooperating with said seat (22) and a piston (12) carrying the closure element (24) and delimiting with the body (4) a low pressure chamber (28) downstream of the shut-off device (22, 24). The body (4) comprises a first portion (41) with the seat (22) and the inlet (6) and a second portion (42) housing the piston (12) and delimiting the low pressure chamber (28). The second portion (42) is movable relative to the first portion (41) between a closed position, and an open position.

Abstract: A fluid control device including a valve arrangement, the valve arrangement including an air supply valve, and an air outlet valve, and a control means, wherein the control means is electrically connected to the air supply valve and to the air outlet valve, and further includes a sensor input for processing a sensor signal and is connected to a sensor which is configured for determining a functional state of the fluid consumer, wherein the control means is configured for implementing a valve diagnostic process such that a first control signal for the air supply valve and a second control signal for the air outlet valve are each varied between a lower interval limit and an upper interval limit while maintaining a pre-definable sensor signal level of a sensor signal provided by the sensor, and the control means is configured for recording value pairs for the first and second control signals.

Abstract: A transmission valve manifold can include a single, unitary, monolithic, manifold body (14). The body (14) can have a plurality of fluid passageways (550, 554, 558, 562, 566) and fluid chambers (130a-d, 134a-d, 326a-f, 338a-c, 510a-h). Each chamber (130a-d, 134a-d, 326a-f, 338a-c, 510a-h) can receive one of a cylinder body (142a-d, 146a-d), solenoid valve (22a-f), or spool valve (30a-h). A first passageway (550, 554, 558, 562, 566) can follow a path that extends along three axes through an interior of the body (14) to connect at least one of the chambers (130a-d, 134a-d, 326a-f, 338a-c, 510a-h) with at least one other chamber (130a-d, 134a-d, 326a-f, 338a-c, 510a-h). The first passageway (550, 554, 558, 562, 566) can overlap a second passageway (550, 554, 558, 562, 566) within the body (14). The body (14) can be manufactured by laser sintering of successive layers of laser sinterable material (1022).

Abstract: A Control Valve Compensation System for producing both a pre-compensated and a post-compensated load sensing hydraulic directional control valve module, wherein both configurations use the same components except for a sliding compensating component. The Control Valve Compensation System generally includes a hydraulic directional control valve housing which is adapted to be easily-interchangeable between a load sensing pre-compensated pressure configuration and a load sensing post-compensated pressure configuration by simply removing and replacing a different compensator assembly within the housing. The compensator assembly is adapted to direct oil flow through the housing while simultaneously providing compensation for the valve function. Directional valve assemblies may be provided, with the valve assemblies functioning to provide post-compensated functions, pre-compensated functions, and mixed pre- and post-compensated functions.

Abstract: A system, including a wellhead system, and a flow control system coupled to the wellhead system, wherein the flow control system comprises, a flow control device including a housing, a flow path through the housing from an inlet to an outlet, and a flow control element disposed in the housing along the flow path, and an actuator mounting assembly coupled to the flow control device, wherein the actuator mounting assembly is configured to selectively mount one of a manual actuator and a powered actuator to actuate the flow control element of the flow control device, without taking the flow control system offline.

Abstract: A gas delivery system for a ceramic showerhead includes gas connection blocks and a gas ring, the gas connection blocks mounted on the gas ring such that gas outlets in the blocks deliver process gas to gas inlets in an outer periphery of the showerhead. The gas ring includes a bottom ring with channels therein and a welded cover plate enclosing the channels. The gas ring can include a first channel extending ½ the length of the gas ring, two second channels connected at midpoints thereof to downstream ends of the first channel, and four third channels connected at midpoints thereof to downstream ends of the second channels. the cover plate can include a first section enclosing the first channel, two second sections connected at midpoints thereof to ends of the first section, and third sections connected at midpoints thereof to ends of the second sections.

Abstract: A valve actuation system includes a drive device, equipped with an axial extension, which includes an actuating drive with a drive output side intended for coupling with a valve and an axial rear side opposite this, wherein the actuating drive has on its axial rear side a mounting interface for the attachment of an auxiliary device which interacts with the actuating drive wherein, in order to allow attachment of the particular auxiliary device which is to be mounted, or which is mounted, the mounting interface of the actuating drive is equipped with several different attachment devices which differ in their attachment possibilities and which can be used selectively. In this way, a high degree of variability in the attachment of auxiliary devices is provided.

Abstract: The present invention provides a plumbing fixture fitting with a mounting system.

Abstract: An improved manifold and valve cartridges suitable for high power (over 600 hp) reciprocating pumps for water blast or jet applications are disclosed. In one aspect, the disclosed valve cartridges are compact and mounted axially along a seat member that has a central bore in addition to suction and discharge seats. The seat member can also be provided a plurality of radially arranged bores for allowing suction flow to the pump. A spool valve assembly can be mounted through the seat member bore, and can include a valve spool, a spherical suction valve member, a compression spring, and compression-locked rings. The spool valve can include a closed flanged end that engages with the seat member discharge seat. In operation, the compression spring continuously pushes the spool valve closed flanged end against the discharge seat and pushes the suction valve member against the suction seat to retain a normally closed position.

Abstract: A fluid coupling includes a socket and a plug and is used to connect two fluid hoses, whereby the plug has a neck that can be inserted into the socket with an annular groove for engaging with a locking element. The locking element includes a push-button that can be activated in a radial manner from the exterior of the socket and from which two flexible fork arms protrude that engage into a hub of the socket and have diagonal ramp surfaces on the two opposing inner faces of the fork arms, whereby the diagonal ramp surfaces engage around the neck in the area of the annular groove around a part of the circumference of the neck. The annular groove is delimited by two opposing and diverging diagonal surfaces.

Abstract: Rotary valve assemblies are disclosed, for example, for use in a thermal management system. The assembly may include a first rotary valve including a primary shaft including a hollow portion defining a first inner cavity and a first spline piece disposed within the first inner cavity on one end and including a primary spline feature on an opposite end, the primary spline feature having one or more primary splines. A second rotary valve may include a secondary shaft including a hollow portion defining a second inner cavity and a second spline piece disposed within the second inner cavity and including a secondary spline feature having one or more secondary splines. One or both of the first spline piece and the second spline piece may be formed of metal. The primary splines and the secondary splines may be configured to mesh together to form a spline joint between the rotary valves.

Abstract: A foam dispensing apparatus is capable of dispensing a mixture of a resin component and an isocyanate component. The foam dispensing apparatus includes a resin line and an isocyanate line connected to a manifold. A nozzle is connected to the manifold and the mixture is dispensed through the nozzle. The manifold defines a resin duct in communication with the resin line and the nozzle and an isocyanate duct in communication with the isocyanate line and the nozzle. At least one valve is connected to the resin and isocyanate lines and is moveable between an open position allowing flow through the resin and isocyanate lines and a closed position preventing flow through the resin and isocyanate lines. The valve is disposed exterior to the manifold and the flow is unregulated in the manifold for reducing maintenance of the manifold.

Abstract: A kit includes a support block for quick cartridge couplings suitable for being mounted on a machine and for being hydraulically connected to a hydraulic circuit on said machine. The block of the kit includes one or more seats and is characterized in that it may house cartridges of different types and sizes in said seats in an interchangeable manner. To this end, the kit includes an adapter configured to be inserted into said one or more seats and to house in turn one of said cartridge couplings therein.

Abstract: An electroproportionally controlled differential pressure valve cartridge includes actuation and tank ports on an outer circumference, and a pump port on a face-side. A spring preloads a piston into a position that relieves pressure from the actuation port to the tank port. A current increase through an electromagnet opposite the pump port and a pressure increase at the pump port counter the spring to open a connection from the pump port to the actuation port. A concentric opening extends from the pump port to a first piston surface. A duct extends from the first piston surface to a pump chamber. A further duct extends from the pump port to a spring chamber between the pump chamber and electromagnet. In the spring chamber, pressure over a second piston surface counters pressure over the first piston surface.

Abstract: A zoned fluid control system in a valve manifold system has a plurality of manifold blocks connected together and a plurality of control valves mounted to the manifold blocks with the control valves being electrically actuated and pilot pressure operated. The plurality of manifold blocks forms at least first and second separate pilot pressure passages of a respective first zone and second zone not connected to each other for supplying a respective first set and second set of control valves with independently controlled pilot pressure. A pilot supply valve selectively supplies pilot pressure and shuts off pilot pressure to the second pilot pressure passage without affecting the pilot pressure to the first pilot pressure passage thereby disabling the second set of control valves as a separate zone independent from the first set of control valves.

Abstract: Methods and apparatus to couple manifold blocks to form a manifold are disclosed. An example apparatus includes a first manifold block including a first fluid passageway defining a first opening in a first surface of the first manifold block. The example apparatus includes a first keyway extending along the first surface of the first manifold block. The example apparatus includes a first key to be inserted in the first keyway and a second keyway of a second manifold block to couple the first manifold block to the second manifold block to fluidly couple the first fluid passageway to a second fluid passageway of the second manifold block.

Abstract: A butterfly valve with a valve disk mounted to swivel about an axis of rotation inside a housing and torsionally rigidly connected to a drive shaft pivotably mounted inside the housing. To ensure a connection which, from the standpoint of production engineering, is simple, yet secure, the valve disk is torsionally rigidly connected to the drive shaft by means of a minimum of two tapered pins engaging opposite sides of the drive shaft.

Abstract: Controlling an ink flow to a print head includes using a diaphragm positioned within a pathway to obstruct the ink flow.

Abstract: A valve assembly includes a valve body having at least a first bore and a second bore, a flow passage connecting the first bore to the second bore, a plurality of ports opening to each bore respectively, the first bore being upstream of the second bore. First and second spools are disposed in the first and second bores, respectively, for controlling the flow of fluid to and from the respective ports. A check valve is disposed in the flow passage and configured to prevent fluid flow from the second spool towards the first spool through the flow passage while allowing fluid flow from one of the ports in the first bore towards the second spool through the flow passage.