A pumpless fluid delivery apparatus includes: a pressure housing having an outlet tube; and a closed-loop flow control apparatus coupled to the outlet tube, the flow control apparatus including a dome-loaded diaphragm control valve, an electronic pressure regulator, and an electronic flow controller operably coupled to the electronic pressure regulator and the control valve.
A pulsation dampener includes: a centerbody defining a chamber including a first opening bounded by a wall defining a first surface; an outlet port communicating with the chamber; an inlet port communicating with the chamber; a first diaphragm, wherein a perimeter of the first diaphragm is sealed to the first surface; a first cap disposed adjacent the first diaphragm, such that a first cavity is defined between the first cap and the first diaphragm; an inlet orifice formed in the first cap communicating with the first cavity; an exhaust orifice formed in the first cap communicating with the first cavity; and a valve seat disposed in the first cavity in fluid communication with the exhaust orifice, wherein the first diaphragm is moveable between an open position in which it is spaced away from the valve seat, and a closed position in which it seals against the valve seat.
F04B 11/00 - Equalisation of pulses, e.g. by use of air vesselsCounteracting cavitation
F04B 43/12 - Machines, pumps, or pumping installations having flexible working members having peristaltic action
F16K 7/17 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
F16K 31/126 - Operating meansReleasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
An apparatus for gradient elution is disclosed. The apparatus includes two or more liquid flowpaths connected at a mixing point, at least one of the two or more liquid flowpaths including: a source configured to supply a pressurized liquid; a closed-loop flow control apparatus including a dome-loaded diaphragm valve, a flow transducer, and an electronic flow controller operably coupled to the flow transducer and the dome-loaded diaphragm valve; a sensor configured to detect a liquid composition downstream of the mixing point; and an electronic master controller coupled to the sensor and to the closed-loop flow control apparatus.
A back pressure regulator includes: a body including: a process surface including at least one inlet orifice and a plurality of outlet orifices; an inlet port communicating with an exterior of the body and with the at least one inlet orifice; an outlet port communicating with the exterior of the body and with the outlet orifices; a reference housing defining a reference cavity; a diaphragm secured between the body and the reference housing such that the diaphragm contacts the process surface, the diaphragm movable between a closed position and an open position; a transfer assembly disposed in the reference cavity, positioned against the reference side of the diaphragm; and an actuator configured to apply a force against the transfer assembly, in response to an electrical input.
F16K 31/126 - Operating meansReleasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
F16K 27/02 - Construction of housingsUse of materials therefor of lift valves
F16K 17/02 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side
A check valve includes: an inlet housing and extending between a first end defining an inlet of the valve, and a second end, the second end including a baffle having a plurality of inlet orifices passing therethrough; an outlet housing and extending between a first end defining an outlet of the valve and a second end, wherein the second ends cooperate to define a valve chamber; a closure element disposed in the chamber movable between a first position in which it engages the baffle, preventing flow from the inlet to the outlet, and a second position where the closure element is disengaged from the baffle, permitting flow from the inlet to the outlet; and wherein the closure element includes opposed inlet and outlet faces and a plurality of flow passageways interconnecting the inlet and outlet faces are disposed at an outer periphery of the closure element.
A back pressure regulator includes: an orifice plate clamped between a reference cap and a body, the reference cap including a reference port; the orifice plate defining control and back surfaces and having a plurality of inlet orifices and outlet orifices passing therethrough; the body including: an inlet opening communicating with an exterior of the body, and at an inlet port communicating between the inlet opening and the inlet orifices; an outlet opening communicating with an exterior of the body, and an outlet port communicating between the outlet opening and the outlet orifices; and a diaphragm having opposed reference and process sides disposed between the orifice plate and the reference caps, the diaphragm movable between a first position engaged with the outlet orifices, and a second position wherein the diaphragm is not engaged with at least one of the outlet orifices.
F16K 31/126 - Operating meansReleasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
F16K 7/17 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
F16K 31/165 - Operating meansReleasing devices actuated by fluid with a mechanism, other than pulling- or pushing-rod, between fluid motor and closure member the fluid acting on a diaphragm
A pulsation dampener includes: a housing extending between a first end and a second end and having an exterior surface and an opposed interior surface; a flexible inner tube disposed inside the housing and having an exterior surface and an opposed interior surface, wherein an outer chamber is defined between the interior surface of the housing and the exterior surface of the inner tube; an inlet orifice disposed in the housing communicating with the outer chamber; a sealing structure disposed in the outer chamber and defining a sealing surface, wherein an outlet orifice extends from the sealing surface through the sealing structure to the exterior surface of the housing; and wherein the inner tube is moveable between an open position in which it is spaced away from the sealing surface, and a closed position in which it seals against the sealing surface so as to close off the outlet orifice.
F16L 55/054 - Pneumatic reservoirs the gas in the reservoir being separated from the fluid in the pipe the reservoir being placed in or around the pipe from which it is separated by a sleeve-shaped membrane
8.
FLOW CONTROL VALVE WITH DIAPHRAGM MOVEMENT FEEDBACK
Flow control apparatus includes: a flow control valve, including: a body defining a process surface, an inlet port, at least one inlet orifice, an element port, and at least one outlet orifice; a reference housing including a reference port; and a diaphragm disposed between the body and the reference housing, the diaphragm movable between a first position engaged with the orifices, and a second position wherein the diaphragm is not engaged with at least one of the orifices, wherein a dome is defined between the reference housing and the diaphragm; a diaphragm sensor apparatus configured to detect a position of the diaphragm and generate a signal representative thereof; and an electronic controller configured to supply a reference pressure to the reference port, wherein the diaphragm sensor apparatus is operably coupled to the electronic controller.
F16K 7/17 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
F16K 31/126 - Operating meansReleasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
F16K 31/165 - Operating meansReleasing devices actuated by fluid with a mechanism, other than pulling- or pushing-rod, between fluid motor and closure member the fluid acting on a diaphragm
F16K 31/365 - Operating meansReleasing devices actuated by fluid in which fluid from the conduit is constantly supplied to the fluid motor the fluid acting on a diaphragm
G05D 16/06 - Control of fluid pressure without auxiliary power the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule
F16K 27/02 - Construction of housingsUse of materials therefor of lift valves
A pressure regulating valve includes: a body, including: a process surface; at least one inlet orifice in the process surface; In outlet orifices disposed in the process surface separate from the at least one inlet orifice; a resilient shut-off seal positioned in the process surface, defining a closed perimeter surrounding the at least one inlet orifice and separating the at least one inlet orifice from the plurality of outlet orifices; an inlet port communicating with the at least one inlet orifice; and an outlet port communicating with the plurality of outlet orifices; a reference housing; and a diaphragm constrained between the body and the reference housing, and arranged such that, when a reference pressure is higher than a process pressure the diaphragm is engaged with the outlet orifices, and when the process pressure is higher than the reference pressure, the diaphragm is disengaged from at least one outlet orifice.
G05D 16/06 - Control of fluid pressure without auxiliary power the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule
A pumpless fluid delivery apparatus includes: a pressure housing having an outlet tube; and a closed-loop flow control apparatus coupled to the outlet tube, the flow control apparatus including a dome-loaded diaphragm control valve, an electronic pressure regulator, and an electronic flow controller operably coupled to the electronic pressure regulator and the control valve.
A61M 5/155 - Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. by means of pistons pressurised by gas
A61M 5/148 - Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. by means of pistons flexible
B65D 83/62 - Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated by membranes, bags or the like
F16K 7/12 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm
F16K 31/02 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic
F16K 31/12 - Operating meansReleasing devices actuated by fluid
G05D 16/20 - Control of fluid pressure characterised by the use of electric means
11.
FLUID CONTROL VALVE WITH DIAPHRAGM TENSIONING GEOMETRY
A fluid control valve includes: a metallic body, including: a process surface with a central portion, a body clamping surface, and a body step between the central portion and the body clamping surface; at least one inlet orifice; at least one outlet orifice; an inlet port; and an outlet port; a metallic cap including a reference port, and a reference surface including: a cavity; a pressure pad; a cap clamping surface; and a cap step between the pressure pad and the cap clamping surface; and a metallic diaphragm between the body and the cap arranged such that, in response to a process pressure being higher than a reference pressure, a fluid flow path will be open from the inlet orifice to the outlet orifice, and in response to the reference pressure being higher than the process pressure, the flow path will be closed.
G05D 16/06 - Control of fluid pressure without auxiliary power the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule
F16K 7/12 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm
G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
F16K 31/16 - Operating meansReleasing devices actuated by fluid with a mechanism, other than pulling- or pushing-rod, between fluid motor and closure member
A back pressure regulator includes: a body defining a process surface, and including: at least one inlet orifice; three or more outlet orifices, outboard of the inlet orifice; an inlet port communicating with the inlet orifice; and an outlet port communicating with the outlet orifices; a reference cap; and a diaphragm constrained between the body and the reference cap and arranged such that, in response to a process pressure being higher than a reference pressure, a fluid flow path will be open that extends from the inlet orifice to the outlet orifice, and in response to the reference pressure being higher than the process pressure, the flow path will be closed; wherein a sum total of a cross sectional area of the at least one inlet orifice is at least 10 times greater than a sum total of a cross sectional area of the three or more outlet orifices.
A pulsation dampener includes: a centerbody assembly having: a chamber including a first opening bounded by a wall defining a first surface; an outlet port communicating with the chamber; an inlet port communicating with the chamber; a flexible first diaphragm, wherein a perimeter of the first diaphragm is bonded to the first surface forming a seal that blocks the passage of fluid; a first cap disposed adjacent the first diaphragm, defining a first cavity between the first cap and the first diaphragm; an inlet orifice formed in the first cap communicating with the first cavity; an exhaust orifice formed in the first cap communicating with the first cavity; and a valve seat disposed in the first cavity in fluid communication with the exhaust orifice. The first diaphragm is moveable between an open position spaced away from the valve seat, and a closed position sealed against the valve seat.
F04B 11/00 - Equalisation of pulses, e.g. by use of air vesselsCounteracting cavitation
F04B 43/12 - Machines, pumps, or pumping installations having flexible working members having peristaltic action
F16K 7/17 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
F16K 31/126 - Operating meansReleasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
An apparatus for gradient elution is disclosed. The apparatus includes two or more liquid flowpaths connected at a mixing point, at least one of the two or more liquid flowpaths including: a source configured to supply a pressurized liquid; a closed-loop flow control apparatus including a dome-loaded diaphragm valve, a flow transducer, and an electronic flow controller operably coupled to the flow transducer and the dome-loaded diaphragm valve; a sensor configured to detect a liquid composition downstream of the mixing point; and an electronic master controller coupled to the sensor and to the closed-loop flow control apparatus.
A centerbody assembly for a pressure regulator includes: a centerbody having a process surface, at least one outlet orifice disposed in the centerbody; an outlet port positioned in fluid communication with the at least one outlet orifice; an inlet port; a valve chamber positioned in the centerbody in fluid communication with the inlet port, the valve chamber including a valve seat positioned in fluid communication with the process surface; a spherical valve element disposed in the valve chamber and moveable between an open position in which it is spaced away from the valve seat, and a closed position in which it seals against the valve seat; a flexible control diaphragm facing the process surface, wherein a perimeter of the control diaphragm is bonded to the centerbody so as to define a seal that blocks the passage of fluid; and wherein the valve element is mechanically interconnected with the control diaphragm.
G05D 16/06 - Control of fluid pressure without auxiliary power the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule
A check valve includes: an inlet housing and extending between a first end defining an inlet of the valve, and a second end, the second end including a baffle having a plurality of inlet orifices passing therethrough; an outlet housing and extending between a first end defining an outlet of the valve and a second end, wherein the second ends cooperate to define a valve chamber; a closure element disposed in the chamber movable between a first position in which it engages the baffle, preventing flow from the inlet to the outlet, and a second position where the closure element is disengaged from the baffle, permitting flow from the inlet to the outlet; and wherein the closure element includes opposed inlet and outlet faces and a plurality of flow passageways interconnecting the inlet and outlet faces are disposed at an outer periphery of the closure element.
A pulsation dampener includes: a housing extending between a first end and a second end and having an exterior surface and an opposed interior surface; a flexible inner tube disposed inside the housing and having an exterior surface and an opposed interior surface, wherein an outer chamber is defined between the interior surface of the housing and the exterior surface of the inner tube; an inlet orifice disposed in the housing communicating with the outer chamber; a sealing structure disposed in the outer chamber and defining a sealing surface, wherein an outlet orifice extends from the sealing surface through the sealing structure to the exterior surface of the housing; and wherein the inner tube is moveable between an open position in which it is spaced away from the sealing surface, and a closed position in which it seals against the sealing surface so as to close off the outlet orifice.
F04B 11/00 - Equalisation of pulses, e.g. by use of air vesselsCounteracting cavitation
F17D 1/20 - Arrangements or systems of devices for influencing or altering dynamic characteristics of the systems, e.g. for damping pulsations caused by opening or closing of valves
F16L 55/04 - Devices damping pulsations or vibrations in fluids
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
18.
MULTI-ORIFICE BACK PRESSURE REGULATOR WITH SEAL ENHANCED POSITIVE SHUT-OFF
A pressure regulating valve includes: a body, including: a process surface; at least one inlet orifice in the process surface; outlet orifices disposed in the process surface separate from the at least one inlet orifice; a resilient shut-off seal positioned in the process surface, defining a closed perimeter surrounding the at least one inlet orifice and separating the at least one inlet orifice from the plurality of outlet orifices; an inlet port communicating with the at least one inlet orifice; and an outlet port communicating with the plurality of outlet orifices; a reference housing; and a diaphragm constrained between the body and the reference housing, and arranged such that, when a reference pressure is higher than a process pressure the diaphragm is engaged with the outlet orifices, and when the process pressure is higher than the reference pressure, the diaphragm is disengaged from at least one outlet orifice.
F16K 7/17 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
F16K 7/07 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with tubular diaphragm constrictable by external radial force by means of fluid pressure
F16K 17/02 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side
G05D 16/06 - Control of fluid pressure without auxiliary power the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule
A valve includes: a housing defining a chamber communicating with an inlet port and an exhaust port, a seat disposed in the housing between the inlet port and the exhaust port; an elastomeric or polymer sealing ring disposed in the seat; a valve element having a sealing surface that is a body of revolution, the valve element positioned in the housing such that it is moveable between a closed position in which the sealing surface is engaged with the sealing ring and an open position in which the sealing surface is disengaged from sealing ring; and at least one bypass channel defined in the chamber, arranged to communicate between the seat and the exhaust port when the valve element is in the open position.
F16K 17/12 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side weight-loaded
F16K 17/04 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side spring-loaded
F16K 17/06 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
A pulsation dampener includes: a centerbody assembly having: a chamber including a first opening bounded by a wall defining a first surface; an outlet port communicating with the chamber; an inlet port communicating with the chamber; a flexible first diaphragm, wherein a perimeter of the first diaphragm is bonded to the first surface forming a seal that blocks the passage of fluid; a first cap disposed adjacent the first diaphragm, defining a first cavity between the first cap and the first diaphragm; an inlet orifice formed in the first cap communicating with the first cavity; an exhaust orifice formed in the first cap communicating with the first cavity; and a valve seat disposed in the first cavity in fluid communication with the exhaust orifice. The first diaphragm is moveable between an open position spaced away from the valve seat, and a closed position sealed against the valve seat.
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
F04B 11/00 - Equalisation of pulses, e.g. by use of air vesselsCounteracting cavitation
F16K 7/12 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm
F16K 7/17 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
F16K 17/04 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side spring-loaded
F16K 31/126 - Operating meansReleasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
21.
DOME-LOADED PRESSURE REDUCING REGULATOR FOR SINGLE USE APPLICATIONS
A centerbody assembly for a pressure regulator includes: a centerbody having a process surface, at least one outlet orifice disposed in the centerbody; an outlet port positioned in fluid communication with the at least one outlet orifice; an inlet port; a valve chamber positioned in the centerbody in fluid communication with the inlet port, the valve chamber including a valve seat positioned in fluid communication with the process surface; a spherical valve element disposed in the valve chamber and moveable between an open position in which it is spaced away from the valve seat, and a closed position in which it seals against the valve seat; a flexible control diaphragm facing the process surface, wherein a perimeter of the control diaphragm is bonded to the centerbody so as to define a seal that blocks the passage of fluid; and wherein the valve element is mechanically interconnected with the control diaphragm.
F16K 7/17 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
G05D 16/06 - Control of fluid pressure without auxiliary power the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule
F02M 39/00 - Arrangements of fuel-injection apparatus with respect to enginesPump drives adapted to such arrangements
F16K 27/02 - Construction of housingsUse of materials therefor of lift valves
A diaphragm pressure regulator includes: a body defining a process surface and including: an exhaust port having a discharge opening, and at least one vent void interconnecting the process surface and the exhaust port; and an inlet port, and at least one process void communicating with the process surface and the inlet port; a reference housing including a cavity defining a reference surface and a reference port in fluid communication with the cavity; and a diaphragm disposed between the body and the reference housing, the diaphragm movable between a first position engaged with the vent voids, and a second position wherein the membrane is not engaged with at least one of the vent voids, wherein a dome is defined between the cavity and the reference side of the diaphragm; and wherein the reference housing includes a sump configured to segregate liquid from the reference side of the diaphragm.
F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
F16K 7/12 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm
F25B 41/22 - Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
23.
Dome-loaded back pressure regulator with setpoint pressure energized by process fluid
A method of operating a thermal system including at least a compressor, a condenser, a flow control valve, and at least one heat exchanger connected in a closed fluid loop charged with refrigerant. The method includes: regulating refrigerant pressure at a selected point within the fluid loop using a pressure regulating apparatus including: a main pressure regulator including a dome in fluid communication with a diaphragm that seals directly against at least one process void and at least one vent void; and a pilot pressure regulator in fluid communication with the dome so as to provide fluid thereto at a setpoint pressure. The setpoint pressure is maintained by the pilot pressure regulator utilizing refrigerant tapped from the fluid loop The refrigerant is tapped from a point upstream of the main pressure regulator and tapped refrigerant is returned to the fluid loop downstream of the main pressure regulator.
F16K 7/12 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm
F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
F25B 41/22 - Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
A centerbody assembly for a valve includes: a centerbody having a process surface, at least one inlet orifice disposed in the centerbody and adapted to be disposed in fluid communication with a fluid at a process pressure, and at least one outlet orifice disposed in the centerbody separate from the at least one inlet orifice; an inlet port disposed in fluid communication with the at least one inlet orifice; an outlet port disposed in fluid communication with the at least one outlet orifice; and a flexible control diaphragm facing the process surface, wherein a perimeter of the control diaphragm is bonded to the centerbody so as to define a seal that blocks the passage of fluid.
F16K 7/12 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm
F16K 15/14 - Check valves with flexible valve members
F16K 27/02 - Construction of housingsUse of materials therefor of lift valves
A valve includes: a housing defining a chamber communicating with an inlet port and an exhaust port, a seat disposed in the housing between the inlet port and the exhaust port; an elastomeric or polymer sealing ring disposed in the seat; a valve element having a sealing surface that is a body of revolution, the valve element positioned in the housing such that it is moveable between a closed position in which the sealing surface is engaged with the sealing ring and an open position in which the sealing surface is disengaged from sealing ring; and at least one bypass channel defined in the chamber, arranged to communicate between the seat and the exhaust port when the valve element is in the open position.
F16K 17/04 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side spring-loaded
F16K 17/12 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side weight-loaded
F16K 17/164 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side and remaining closed after return of the normal pressure
09 - Scientific and electric apparatus and instruments
Goods & Services
Back pressure valves as part of machines; regulating valves as being part of machines; pressure reducers as part of machines; pressure regulators as part of machines Electric measure manostat; pressure indicator plugs for valves
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Pressure and flow control valves for use in fluid, gas and multiphase pressure regulation applications; pressure regulating and flow regulating valves, pressure reducers and pressure regulators for use in sanitary, flow control, research, industrial, level control, vacuum and pump control applications with fluid, gas and multiphase pressure valves
(2) Electric measure manostats, pressure regulator controls for use with fluid, gas and multiphase pressure valves; pressure indicator plugs for fluid, gas and multiphase pressure valves
A centerbody assembly for a valve includes: a centerbody having a first side which defines a process surface and an opposed second side defining a back surface, at least one inlet orifice disposed in the centerbody and adapted to be disposed in fluid communication with a fluid at a process pressure, and at least one outlet orifice disposed in the centerbody separate from the at least one inlet orifice; an inlet port disposed in fluid communication with the at least one inlet orifice; an outlet port disposed in fluid communication with the at least one outlet orifice; and a flexible control diaphragm having opposed reference and process sides, wherein the control diaphragm is positioned with the process side facing the process surface, and a perimeter of the control diaphragm is sealed to the centerbody.
F16K 7/17 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
F16K 7/12 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm
F16K 7/14 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
F16K 31/126 - Operating meansReleasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
30.
Back pressure regulator with floating seal support
A sealing apparatus for a back pressure regulator includes: a body defining a process surface, and including: at least one process void communicating with the process surface; a recess disposed in the process surface; a floating support hub disposed in the recess, carrying an O-ring; a vent void communicating with the recess; an inlet port disposed in fluid communication with the at least one process void and adapted to be coupled in fluid communication with a fluid at a process pressure; and an outlet port disposed in fluid communication with the vent void; and a diaphragm having opposed reference and process sides, the diaphragm disposed against the body such that the process side is substantially coplanar with the process surface.
F16K 7/17 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
G05D 16/06 - Control of fluid pressure without auxiliary power the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule
G05D 16/18 - Control of fluid pressure with auxiliary non-electric power derived from an external source
F16K 7/16 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being mechanically actuated, e.g. by screw-spindle or cam
F16K 7/12 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm
F16K 31/165 - Operating meansReleasing devices actuated by fluid with a mechanism, other than pulling- or pushing-rod, between fluid motor and closure member the fluid acting on a diaphragm
31.
BACK PRESSURE REGULATOR WITH FLOATING SEAL SUPPORT
A sealing apparatus for a back pressure regulator includes: a body defining a process surface, and including: at least one process void communicating with the process surface; a recess disposed in the process surface; a floating support hub disposed in the recess, carrying an O-ring; a vent void communicating with the recess; an inlet port disposed in fluid communication with the at least one process void and adapted to be coupled in fluid communication with a fluid at a process pressure; and an outlet port disposed in fluid communication with the vent void; and a diaphragm having opposed reference and process sides, the diaphragm disposed against the body such that the process side is substantially coplanar with the process surface.
F16K 7/17 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
G05D 16/06 - Control of fluid pressure without auxiliary power the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule
