Abstract: Methods and apparatuses for controlling precursor flow in a semiconductor processing tool are disclosed. A method may include flowing gas through a gas line, opening an ampoule valve(s), before a dose step, to start a flow of precursor from the ampoule to a process chamber through the gas line, closing the ampoule valve(s) to stop the precursor from flowing out of the ampoule, opening a process chamber valve, at the beginning of the dose step, to allow the flow of precursor to enter the process chamber, and closing the process chamber valve, at the end of the dose step, to stop the flow of precursor from entering the process chamber. A controller may include at least one memory and at least one processor and the at least one memory may store instructions for controlling the at least one processor to control precursor flow in a semiconductor processing tool.

Abstract: A valve includes a housing with at least one inlet and at least one outlet; a valve member located within the housing and being moveable between different positions for controlling, in use, the flow of a fluid from an inlet to an outlet of the valve; wherein the valve further includes at least two spaced-apart valve seats in which the valve member is seated so as to form a cavity bounded by the valve seats, an exterior surface of the valve member and an interior surface of the housing; a first conduit extending between the exterior of the housing and the cavity; and a second conduit extending between the cavity and a bore of the valve member, through which conduits, in use, a purge gas can be introduced into the cavity and bore.

Abstract: A method for simultaneously unblocking multiple blocked valve fittings is described. The method includes coupling a tool to unblock multiple valve fittings simultaneously to a valve with multiple valve fitting blocked to fluid flow. The tool includes a pressure vessel holding a cleaning fluid, an input conduit fluidically coupled to the pressure vessel to flow the cleaning fluid from a cleaning fluid source to the pressure vessel and to adjust a pressure of the pressure vessel, and injection conduits to flow the cleaning fluid from the pressure vessel to the valve fittings. The method includes simultaneously flowing the cleaning fluid from the pressure vessel through the injection conduits to the valve fittings. Responsive to flowing the cleaning fluid to the valve fitting, the valve fittings are unblocked.

Abstract: Kitchen appliances usually include devices such as a water system, a cooker, a kitchen hood (range hood), an oven, a refrigerator, a microwave, a dishwasher and other devices. The devices are mostly operated independent from each other. Unlike those devices the “drinkable tap water-based liquid supply system” according to the present invention comprises a few devices controlled by an advanced control system according to the invention for providing connectivity and system management. The system is designed to provide comfort, convenience and energy saving. The water-based liquid supply system according to the present invention provides a variety of water-based liquids, dispatched with the desired properties from a countertop faucet.

Abstract: The invention comprises an adjustable valve system, apparatus and method using an adjustable drum assembly that can be used in conjunction with a blower or pump to drive air into and out of the drum assembly, wherein the adjustable valve system is useful in connection with operating wave generator caissons for wave pools. The present system preferably comprises an inner drum coaxially aligned and rotatably positioned within an outer drum, wherein side openings are provided on the inner and outer drums which can be aligned together to allow air to flow into and/or out of the drum assembly. That way, by adjusting the position of the inner drum relative to the outer drum, the valve system can enable the air to flow either into or out of the drum assembly and therefore the associated caisson. The system can be used to introduce positive or negative air pressure in the caisson and create waves in a wave pool.

Abstract: A fluid preparation system includes a tank, a chemical supply line, a mixer, and a deionized (DI) water supply line. The tank contains a first chemical solution. The chemical supply line is coupled to the tank and configured to supply the first chemical solution. The mixer is coupled to the tank. The DI water supply line is coupled to the mixer and configured to supply DI water. The first chemicals solution and the DI water are mixed at the mixer to generate a second chemical solution.

Abstract: A substrate processing apparatus includes: a processing container including a processing space capable of accommodating a substrate in a state where a surface of the substrate is wet by a liquid; a processing fluid supply that supplies a processing fluid in a supercritical state to the processing space toward the liquid; a first exhaust line connected to a first exhaust source; a second exhaust line connected to a second exhaust source and connected to the first exhaust line between the first exhaust source and the processing space; and a controller controlling the second exhaust pressure. The processing fluid in the supercritical state contacts the liquid to dry the substrate, and the controller makes the second exhaust pressure to be higher than the first exhaust pressure during a period in which the processing fluid supply stops supplying the processing fluid to the processing space.

Abstract: An injection nozzle for injecting a substance, such as a cryogenic gas or cryogenic liquid, into the interior of a process vessel, or directly into material inside a process vessel, and includes a housing having a first internal chamber for receiving a fluid, and a second internal chamber having an actuator located therein, a valve body having an outlet, a stem positioned within the first internal chamber of the housing and having opposed proximal and distal ends, wherein the stem is reciprocally movable along its longitudinal axis in the housing to open and close the valve body outlet, and a sensor configured to receive a signal from the actuator.

Abstract: Disclosed herein are cell processing systems, devices, and methods thereof. A system for cell processing may comprise a plurality of instruments each independently configured to perform one or more cell processing operations upon a cartridge, and a robot capable of moving the cartridge between each of the plurality of instruments.

Abstract: The disclosure concerns a printhead for the application of a coating agent to a component, in particular for painting a vehicle body component with a paint. The disclosure provides that the printhead is designed in such a way that it enables a color change during coating operation and can be rinsed with a rinsing agent during a color change in order to rinse out coating agent residues from the printhead.

Abstract: A water-abrasive suspension cutting facility includes a pressure tank (11) for providing a water-abrasive agent suspension (13) which is under pressure, a lock chamber (21), and a refilling valve for refilling abrasive agent into the pressure tank via the lock chamber (21). The refilling valve (21) includes a valve entry (49), a valve exit (51), a valve space (71) which is arranged between the valve entry (49) and the valve exit (51), and a valve body (67) which is located in the valve space (71). The valve entry (49) is connected to the lock chamber (21) and the valve exit (51) to the pressure tank (11). The refilling valve (19) can assume a first closure position, a first open position and a second open position. In the first closure position the lock chamber (21) is fluid-separated from the pressure tank.

Abstract: A system and method for determining leakage in a fluid supply line assembly are provided. The system includes a source of pressurized fluid, a pressurized fluid load, and a fluid supply line coupled to the source and the load. The leak detection system also includes a source isolation valve configured to control a flow of fluid into the fluid supply line from the source, a load isolation valve configured to control a flow of fluid from the fluid supply line to the pressurized fluid load, and a processor communicatively coupled to a memory device. The memory device includes instructions that when executed by the processor, cause the processor to close the load isolation valve and open the source isolation valve to supply pressurized fluid to the fluid supply line, and after a predetermined interval, determine a leakage of pressurized fluid from the fluid supply line.

Abstract: A liquid direct injection assembly includes a direct injection supply kit to mix liquid components into a mixture and deliver the mixture to a treatment device. The supply kit includes one or more liquid component containers that each include an elongated flexible bladder and a discharge nozzle to discharge a corresponding liquid component from the bladder. The supply kit also includes one or more metering bodies each defining a metering orifice to control a flow rate of the corresponding liquid component from the bladder. The liquid direct injection assembly also includes a container tray configured to removably support a liquid component container.

Abstract: In order to provide a fluid device that makes it possible for operation command signals other than existing operation command signals to be received without a software modification having to be implemented in an already constructed system, in a fluid device that measures or controls physical quantities of a fluid, there are provided a command signal receiving unit that receives a predetermined plurality of types of operation command signals, and also command signal modes, which are values thereof or time series variations of the values thereof, and a command signal recognition unit that, when the command signal mode of a predetermined operation command signal received by the command signal receiving unit falls outside predetermined conditions that have been set in advance, recognizes the predetermined operation command signal that contains the command signal mode as being a different type of operation command signal.

Abstract: An actuating mechanism includes an actuating shaft, an actuated member, and an engaging and disengaging structure. The actuating shaft is configured to be rotatable. The actuated member can be actuated by the actuating shaft to rotate. The engaging and disengaging structure includes an actuating structure provided on the actuating shaft and an actuated structure provided on the actuated member. When the actuating structure engages with the actuated structure, the actuating structure can drive the actuated structure to rotate, such that the actuating shaft can drive the actuated member to rotate. Further, a set of actuating and actuated structures of the actuating mechanism can rotate and stop according to set angle requirements, such that a valve body can be actuated to connect and disconnect different fluid passages as required.

Abstract: Assembly comprising a spray means, preferably an airbrush comprising a pickup chamber subjected to a stream of entrainment air, and a dispenser comprising at least two compartments containing different base products, the compartments being pressurized by way of volumetric dosing devices, and the products being delivered to the spray means preferably via distinct dispensing orifices.

Abstract: A rotating-tool main shaft includes a hollow ram, a hollow main shaft, a collet, a draw bar that moves the collet in the axial direction, a hydraulic cylinder that moves forwardly the draw bar, and a disc spring that moves backwardly the draw bar. The draw bar includes a spring catch which is retained in the hollow main shaft so as to be movable, and which catches the disc spring. The disc spring is placed in the hollow main shaft, and is placed within a distance that is at least a half of a distance from a tip of the draw bar to the spring catch in the axial direction.

Abstract: A bypass valve assembly includes a housing having an inlet, an outlet, and a flow passageway to allow flow of a liquid from the inlet to the outlet and a valve seat disposed about the flow passageway between the inlet and the outlet. A movable poppet is disposed in the housing to engage the valve seat in a closed position and to disengage the valve seat in an open position when pressure of the liquid in the flow passageway exceeds a preset value to allow flow of the liquid through the flow passageway. A rotatable flow control valve is disposed in the housing between the inlet and the outlet. An actuator is coupled to the flow control valve to actuate and move the flow control valve to control flow of the liquid between the inlet and the outlet when the poppet is engaged with the valve seat.

Abstract: A double-seat valve includes a housing having a passage between first and second connections. First and second valve disks are arranged in a housing internal space. A leakage space formed in the passage in the valve closed position is sealed off by the second valve disk. A hollow rod connected to the first valve disk has a leakage channel connecting the leakage space and a housing part. A cleaning gap is formed between the second valve disk and a passage wall. A housing opening is sealed with a diaphragm that separates the housing part from the internal space. A section of the first valve disk is received in an opening contour in the passage in the valve closed position, and delimits a cut-out in the first valve disk, in which the second valve disk is received in the valve open position.

Abstract: Disclosed are an apparatus and a method for treating a substrate. The substrate treating apparatus includes a flow rate measuring unit includes a container located outside the housing and having an accommodation space an upper side of which is opened and in which the treatment liquid discharged from the treatment liquid nozzle is accommodated, in the interior thereof, a measurement member configured to measure an amount of the treatment liquid accommodated in the accommodation space, and a drain line through which the treatment liquid in the container is discharged.

Abstract: A flow restriction system for restricting fluid flow through a pipe includes an anchor and an inflatable plug. The anchor includes an alignment body, a shield body, and a first fluid passage defined in the alignment body and the shield body. The shield body extends from the alignment body and has an upstream face and a downstream face. The downstream face is opposite the upstream face. The shield body is configured to block at least a portion of the fluid flow through the pipe. The inflatable plug is coupled to the downstream face of the shield body. The inflatable plug includes an interior chamber that is in fluid communication with the first fluid passage.

Abstract: A plurality of bypass lines are configured to selectively engage a corresponding plurality of food flow paths in a food processor. Each bypass line fluidly communicates with an inlet of a pressure regulating valve such that a common pressure occurs at a spaced position in each food flow path providing an equal pressure at the pressure regulating valve.

Abstract: A cover device for at least partially closing an underwater opening in a hull of a watercraft includes a variable-volume hollow-chamber lip assembly including at least two hollow-chamber lips and one buoyancy body. The at least one hollow-chamber lip is volume-variable by supplying a fluid to or removing a fluid from an interior thereof, and the at least one hollow-chamber lip assembly is shiftable between an expanded state and a contracted state by supplying or removing the fluid.

Abstract: A waste gate valve for a turbocharger is provided that improves control responsivity, wear resistance and the flow uniformity of diverted exhaust gas by improving the operational structure thereof. The waste gate valve includes a turbine housing in which a portion of a bypass passage is formed along the inner circumferential surface of a discharge passage. A mixer ring includes bypass apertures therein that are arranged along the bypass passage formed in the inner circumferential surface of the discharge passage. Additionally, a control valve is configured to open or close the bypass apertures based on movement thereof.

Abstract: An oil pumping system to carry oil from an oil sump in a pump housing to an internal oil reservoir in another portion of the pump housing. A top plate is attached to a pump rod and moves in accordance with a reciprocating motion of the pump rod. A bottom plate is below the top plate. A pump mechanism, disposed between the top plate and bottom plate, includes a valve seat that contacts the bottom plate, and an upper portion that contacts the top plate. A first biasing element is configured to urge the valve seat upward away from the bottom plate. A second biasing element is configured to urge the plunger upward away from the valve seat. Upward movement of the pump rod allows oil to flow into the pump mechanism. Downward movement of the pump rod causes the bottom of the valve seat to seal against the bottom plate.

Abstract: A backflush device for filters of a sampling system having a connecting element, which is passed through by a retrieval line that is connectable to the filter and which has at least one backflush line ending in the retrieval line, having a check valve arranged at or in the backflush line, where the check valve is connectable to a pressure line for a pressurized flush medium such that in the case of an open check valve, the backflush line may be flowed through by the flush medium in a backflush direction oriented towards the retrieval line, and where the backflush line ends in the retrieval line at an obtuse angle, observed in the direction of the backflush direction.

Abstract: A beverage dispenser and methods of beverage dispensing include a dispenser with a beverage valve and a purge valve. The beverage valve is connected the dispenser body and is actively operable to control a flow of a base beverage into a flow path of the dispenser. The purge valve is selectively operable to control a flow of a purge substance into the flow path. A nozzle is configured to mix a flavoring from a flavoring nozzle with a base beverage from the beverage valve prior to dispensing a mixture of the flavoring and the base beverage from the nozzle.

Abstract: The present invention relates to a product and method for cell preservation, such as cell banking of any type of cells for subsequent scientific or medical use. More closely, the invention relates to a product and a method for cryopreservation of cells using vacuum tubes provided with freeze media/cryopreservation liquid.

Abstract: A system and method to control environmental parameters of predefined zones within a structure. An embodiment of the system uses damper assemblies that are entirely wireless as a result of energy capturing devices which convert air flow within the HVAC system ductwork into electrical current and a wireless control module that remove the need for hard-wiring for power or control. Still further, an embodiment of the system uses wireless components to monitor the environmental parameters of a structure's zones, process and communicate necessary zone adjustments, and actuate system components.

Abstract: A septic hose compressor is provided that is attachable to a conventional septic hose such as the hoses used in RVs. The system includes an air-tight second end cap that attaches to the second end of the septic hose. The first end cap attaches to the first end of the septic hose and includes a one-way valve or other flow restriction mechanism to allow for the removal of air from the interior of the septic hose to provide a compressed septic hose that is suitable for storage.

Abstract: A gravity fed peritoneal dialysis (“PD”) machine includes: a frame configured to be set on a supporting surface; at least one load cell; a scale platform supported by the frame via the at least one load cell positioned between the frame and the scale platform; a drain container support in mechanical communication with and extending downwardly from the scale platform, the machine configured such that when the frame is set on the supporting surface, at least one fresh PD fluid supply container is supportable by the scale platform above the at least one load cell and at least one used PD fluid drain container is supportable by the drain container support below the at least one load cell, so that a combined weight of fresh PD fluid and used PD fluid may be sensed by the at least one load cell.

Abstract: Mixture preventing valve includes first flow passage allowing a first fluid to flow; second flow passage allowing a second fluid to flow; communication passage allowing first flow passage and second flow passage to communicate with each other; valve body that opens/closes communication passage; and valve seat provided on an inner wall surface of the communication passage that contacts valve body. Valve body includes first valve body piece and second valve body piece arranged side by side in a state of being separated from each other in a movement direction of valve body. Valve seat contacts respective outer peripheral surfaces of first valve body piece and second valve body piece. In the inner wall surface, a portion where valve seat contacts outer peripheral surface of first valve body piece, and a portion where valve seat contacts outer peripheral surface of the second valve body piece exist on a same plane.

Abstract: An apparatus for automatically disinfecting piping for medical uses includes a main controller including a control center module, an administration controller, and an electric valve controller; a disinfection solution machine connected to a main pipe including first branch pipes each provided with an administration motor control valve and connected to medical devices, second branch pipes each connected to the first branch pipe, and drains each connected to the first branch pipe, first electric valves each is provided between the medical device and the first branch pipe, second electric valves each is provided in the second branch pipe, third electric valves each is provided in the drain; and a reverse osmosis water filter being in fluid communication with a purified water reservoir having an outlet connected to the first branch pipes, and a feedback end connected to the second branch pipes.

Abstract: A liquid dispenser filling hose for use in filling a liquid dispenser with liquid from a liquid reservoir via a pump, comprising: a distal coupler for coupling the filling hose to the liquid dispenser; and a controller arranged to control the pump. The liquid dispenser may be filled using a method comprising: providing a liquid reservoir, a pump and a controller arranged to control the pump, and a filling hose having a proximal end and a distal end, the proximal end of the filling hose being coupled to the liquid reservoir; coupling the distal end of the filling hose via a distal coupler to the liquid dispenser; and transferring liquid from the liquid reservoir via the filling hose to an airless liquid container forming part of the liquid dispenser. A system for filling a liquid dispenser, comprising: the liquid filling hose; and a liquid reservoir and/or liquid supply station is also described.

Abstract: An anti-drain valve for a plate cooler has a plastic housing having a generally cylindrical outer wall with open ends, and an inner support structure integrally formed therewith, and with a valve seat. A piston is located within the support structure and axially movable toward and away from the valve seat. A biasing member biases the piston toward the valve seat. A resilient sealing element provides a seal between the housing and the base plate. The outer wall has first and second portions, the first portion including a plurality of inwardly bendable detents defined by slots through the outer wall for attaching the valve to the base plate of the plate cooler.

Abstract: A double seat valve for aseptic lines for product is described, the valve comprising a valve housing, two line ports arranged on the valve housing for connecting the aseptic lines for product to the valve housing, two valve seats that are formed between the line ports on the valve housing and confine a safety chamber formed therebetween for leaks against the line ports, a first closure element which is actuatable by way of a first valve stem and acts against one of the two valve seats, and with a second closure element which is actuatable by way of a second valve stem and acts against the other of the two valve seats. T first valve stem at least in part surrounds the second valve stem, so that both are movable independently along a valve axis.

Abstract: A device for supplying at least one sprayer with a liquid coating product comprises a plurality of valves for controlling the flow of the coating product to the sprayer, these valves being aligned along a principal axis of the supply device. Each valve comprises a moving needle, a valve body, pneumatic driver for moving the needle in translation, the driver comprising a piston constrained to move in translation with the needle and slidably mounted in a guide body. The principal axis and the separation/approach axis of a valve coincide at a unique point and together define a principal plane of the valve. The separation/approach axis of each valve is contained within a cone centered on an axis perpendicular to the principal axis and belonging to the principal plane of the valve, the apex of the cone being coincident with the unique point.

Abstract: During the production of consumable liquids such as milk, soup, and juice, the liquid consumable may be transferred from one location to another location through a fluid conduit. For example, a consumable liquid may be transferred from a storage tank to another destination through piping. At the end of the process, the piping may be purged with a flushing fluid to push the liquid consumable remaining in the piping to the end destination, thus preventing the volume of liquid remaining in the piping from being wasted. To control the flushing processing, fluid flowing through the piping may be fluorometrically analyzed to determine a concentration of product in the fluid. The flushing liquid can then be controlled based on the determined concentration. For example, the supply of flushing liquid may be terminated when the concentration of product falls below a threshold, indicating the flushing liquid is diluting the liquid consumable.

Abstract: An orifice fitting includes a body, an orifice plate mounted in the body, and an orifice plate transfer passage within the body. The orifice plate transfer passage includes a shoulder, and the orifice plate is movable through the passage. In addition, the orifice fitting includes a sealing assembly disposed in the orifice plate transfer passage. The sealing assembly includes a sealing insert including a first section and a second section. In addition, the sealing assembly includes a first sealing member configured to create a first fluid tight barrier between the second section and the orifice plate transfer passage. Further, the sealing assembly includes a second sealing member configured to create a second fluid tight barrier between the shoulder and the first section. Still further, the sealing assembly includes a subchamber within the orifice plate transfer passage between the first fluid tight barrier and the second fluid tight barrier.

Abstract: Marine bypass systems and assemblies. In one embodiment, a bypass system includes a non-marine water supply injection assembly, a bypass solenoid valve, and a non-marine injector. In particular examples, the assembly comprises a heated non-marine water supply injection assembly and a non-heated, non-marine water supply injection assembly. The result is an improved device and method for enhancing the removal, and elimination, of marine growth from a marine vessel.

Abstract: A coffee machine (10), in particular a fully automatic coffee machine, comprising a water tank (11), also a heating device (16) for heating up water, also a brewing unit (18) for subjecting ground coffee beans to extraction by means of the water heated by the heating device (16), also a water-line system (13) comprising at least one water line, and also a delivery pump (14) for delivering water out of the water tank (11) through the water-line system (13). According to the invention, it is provided that a chamber (25) is, or may be provided for a chemical active substance, in particular a decalcifying and/or cleaning agent, it being possible for this chamber to be connected and/or linked up to the water-line system (13), manually or automatically, such that water can be delivered out of the water tank (11), by means of the delivery pump (14), into the water-line system (13) through the chamber (25). The invention also concerns a method for operating a coffee machine (10).

Abstract: A water well immersion device intended for the treatment of water within wells based galvanic current generation. The unit maintains the continuous generation of galvanic electricity as the components age through adjustable mechanical features that ensure the continuous optimal connectivity between the galvanic electricity generating components.

Abstract: A lid assembly for a container includes a seal assembly coupled to a base portion, and the seal assembly includes an intermediate arm pivotably coupled to the base portion and an engagement portion disposed adjacent to a second end. The seal assembly also includes a plunger arm pivotably coupled to the intermediate arm and a seal member disposed on the plunger arm. Displacing a button member coupled to the base portion actuates the seal assembly from a closed first position in which the seal member seals a fluid aperture formed in a spout of the base portion to an open second position in which the fluid aperture is not sealed.

Abstract: A novel fluid dispenser system is described. The system is comprised of a plurality of connectors that each connect to one a plurality of fluid supply containers and, once connected, hold a valve on the supply container in an opened position. The connectors are connected, using flexible tubing, to a valve manifold that selectively dispenses fluid from each of the supply containers. The system provides a means of selectively and safely delivering fluid from large and ungainly supply containers without the need for lifting or otherwise manipulating the supply container itself. The system is especially useful in delivering laundry detergent and other additives from supply containers to a washing machine in a home use application.

Abstract: A changing device for coating media having a plurality of supply units. The device includes an electric valve device with each supply unit having an electric valve unit which opens and closes a flow channel through which a medium may be supplied in response to a control signal. The valve device includes a control system which has a switching device for each supply unit, each switching device selectively allowing or blocking a control signal from reaching a respective valve unit. The valve device also includes a triggering device which is carried by at least one coupling unit which couples the plurality of supply units to an application device. The triggering device triggers the switching device to allow the control signal through to a supply unit when the coupling unit is connected to the supply unit in a fluid-tight manner.

Abstract: A diverter valve for extruded materials, including a split cylinder in the cylindrical opening of a base, each cylinder half being independently pivotable. The base includes first and second inlets for first and second extruded material, and first and second outlets for the material. Base first and second flow paths carry the first and second extruded materials from the inlets to the output openings, and third and fourth flow paths carry extruded material from the first and second first inlet openings to the first and second outlets. The first and second inlet openings and the first and second output openings are axially open to the central opening, and the cylinder halves are adjacent along a plane substantially radial to the central opening axis with each of the cylinder halves including a recess open along the radial plane.

Abstract: A system and method for flushing a drain trap body having first and second channels with a dividing wall between that provides for one or more separate and dedicated streams of water operable to flush debris from the two-channel drain trap body.

Abstract: An example shut-off device includes an upper valve body, and a lower valve body. The lower valve body connects to the upper valve body to surround a section of a pipe to form a chamber therein. A cutting blade in the chamber is tightening against the pipe to cut through the pipe and at least partially seal an opening in the cut pipe. Following a repair to the pipe, the cutting blade may be operated as a gate valve, opening to permit fluid flow through the pipe, and closing to at least partially restrict or fully stop fluid flow through the pipe. Also disclosed is an emergency repair for a pipe including a sleeve housing configured to be opened and closed around a portion of a pipe to be repaired, and a tightening mechanism configured to reduce an inner diameter and tighten against the pipe to be repaired.

Abstract: Methods and apparatus for particle reduction in throttle gate valves used in substrate process chambers are provided herein. In some embodiments, a gate valve for use in a process chamber includes a body having an opening disposed therethrough from a first surface to an opposing second surface of the body; a pocket extending into the body from a sidewall of the opening; a gate movably disposed within the pocket between a closed position that seals the opening and an open position that reveals the opening and disposes the gate completely within the pocket; and a plurality of gas ports disposed in the gate valve configured to direct a gas flow into a portion of the gate valve fluidly coupled to the opening.

Abstract: A back pressure control system adapted to be at least partially integrated with a drill rig.