US20240011566A1 - Pressure regulating valve - Google Patents
Pressure regulating valve Download PDFInfo
- Publication number
- US20240011566A1 US20240011566A1 US17/860,311 US202217860311A US2024011566A1 US 20240011566 A1 US20240011566 A1 US 20240011566A1 US 202217860311 A US202217860311 A US 202217860311A US 2024011566 A1 US2024011566 A1 US 2024011566A1
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- US
- United States
- Prior art keywords
- stem
- seat
- pressure regulating
- regulating valve
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 57
- 239000012530 fluid Substances 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 230000008878 coupling Effects 0.000 claims abstract description 9
- 238000010168 coupling process Methods 0.000 claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 230000004044 response Effects 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 2
- 230000002401 inhibitory effect Effects 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 18
- 229910002092 carbon dioxide Inorganic materials 0.000 description 9
- 239000001569 carbon dioxide Substances 0.000 description 9
- 235000013361 beverage Nutrition 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 235000014171 carbonated beverage Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 235000020357 syrup Nutrition 0.000 description 2
- 239000006188 syrup Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 244000273618 Sphenoclea zeylanica Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000020375 flavoured syrup Nutrition 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/01—Control of flow without auxiliary power
- G05D7/0126—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs
- G05D7/0133—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs within the flow-path
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/30—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
- F16K1/304—Shut-off valves with additional means
- F16K1/306—Shut-off valves with additional means with a valve member, e.g. stem or shaft, passing through the seat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D1/00—Apparatus or devices for dispensing beverages on draught
- B67D1/08—Details
- B67D1/12—Flow or pressure control devices or systems, e.g. valves, gas pressure control, level control in storage containers
- B67D1/125—Safety means, e.g. over-pressure valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D1/00—Apparatus or devices for dispensing beverages on draught
- B67D1/08—Details
- B67D1/12—Flow or pressure control devices or systems, e.g. valves, gas pressure control, level control in storage containers
- B67D1/1252—Gas pressure control means, e.g. for maintaining proper carbonation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
- G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
- G05D16/0644—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator
- G05D16/0663—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator using a spring-loaded membrane with a spring-loaded slideable obturator
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7781—With separate connected fluid reactor surface
- Y10T137/7793—With opening bias [e.g., pressure regulator]
- Y10T137/7822—Reactor surface closes chamber
- Y10T137/7823—Valve head in inlet chamber
- Y10T137/7826—With valve closing bias
Definitions
- the present disclosure relates to pressure regulating valves, such as those used to regulate a pressure of fluid entering a consumer device like a carbonated beverage dispenser.
- CO2 carbon dioxide
- a “post mix” soda dispenser typically include a source of CO2, a source of water, a carbonator for mixing the water and CO2, and a syrup pump for drawing from a source of flavored syrup. Under this system, the syrup is combined with the carbonated water while the beverage is dispensed.
- Such beverage systems typically include a pressure regulating assembly that is located adjacent to an outlet of the source of CO2 for regulating a pressure of CO2 escaping the source of CO2 prior to being delivered to the carbonator.
- Pressure regulating assemblies typically include a regulator body which defines a channel that is fluidly connected to the gas source.
- a seal seat of a flexible material, such as Teflon® is located in the channel and is selectively engaged by a seat stem which is moveable between a closed position in which the seat stem engages the seal seat to seal the passage, and an open position in which the seat stem is spaced from the passage, permitting gas to flow through the channel.
- a spring biases the seat stem in the closed position, and a stem pin selectively moves the seal seat between the open and closed positions in response to rotation of a handle by an operator to adjust an amount of flow through the channel.
- a pressure regulating valve is provided for use with a pressure regulating assembly for regulating a flow of a fluid from a source of the fluid to a fluid consumer.
- the pressure regulating valve includes a seal seat that defines an opening.
- a seat stem is moveable between a closed position in which the seat stem engages the seal seat and prevents a flow of fluid through the opening of the seal seat, and an open position in which the seat stem is spaced from the seal seat and permits a flow of the fluid through the opening of the seal seat.
- a biasing element biases the seat stem in the closed position.
- a housing defines a passage that extends between an inlet and an outlet.
- the seal seat, seat stem and biasing element are positioned in the passage of the housing such that movement of the seat stem between the closed and open positions permits or prevents the flow of the fluid between the inlet and outlet of the housing.
- a coupling mechanism fixes the housing inside a channel of a regulator body of the pressure regulating assembly.
- the seal seat is located in a housing that is independent of the primary regulator body, the seal seat may be tested prior to shipping and installation at a job site. This saves time and material costs by ensuring that a reliable seal seat is installed at the job site. Furthermore, the housing may easily be retrofitted into channels of existing primary regulator bodies, thus providing a simple, quick installation process for seal seat replacements.
- FIG. 1 is perspective, cutaway view of an example embodiment of a pressure regulating assembly including a pressure regulating valve
- FIG. 2 is a side view of the pressure regulating valve
- FIG. 3 is a cross-sectional view of the pressure regulating valve
- FIG. 4 is an exploded view of the pressure regulating valve.
- Example embodiments of a pressure regulating assembly and associated pressure regulating valve will now be described more fully with reference to the accompanying drawings.
- the example embodiments are only provided so that this disclosure will be thorough, and will fully convey the scope to those who are skilled in the art. Numerous specific details are set forth such as examples of specific components, devices, and methods, to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that the example embodiments may be embodied in many different forms that may be combined in various ways, and that neither should be construed to limit the scope of the disclosure. In some example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail.
- a pressure regulating assembly 10 is shown. As best shown in FIG. 1 , the pressure regulating assembly 10 is configured to regulate a flow of a fluid from a source of fluid 12 (schematically shown) to a consuming mechanism 14 (schematically shown). For example, the pressure regulating assembly 10 may be configured to regulate a flow of CO2 from a source of CO2 gas to a carbonated beverage dispensing machine like a “fountain drink” dispenser. The pressure regulating assembly 10 could also be employed to regulate a flow of other fluids (e.g., nitrous oxide) to various other types of consumers (e.g., a beer dispenser). Although the subsequent discussion primarily references the use of the pressure regulating assembly 10 with gas, it should be appreciated that it could also be used to regulate a flow of other fluids.
- other fluids e.g., nitrous oxide
- the pressure regulating assembly 10 includes a primary regulator body 16 .
- the primary regulator body 16 defines a central channel 18 along a central axis A.
- the central channel 18 is open at a top of the primary regulator body 16 .
- the primary regulator body 16 further defines a primary inlet 20 that extends radially to the central channel 18 and is fluidly connected to the central channel 18 .
- the primary inlet 20 is configured to receive a fluid from the source of fluid 12 .
- the primary regulator body 16 further defines an output channel 22 that is fluidly connected to the central channel 18 at the top of the primary regulator body 16 .
- the output channel 22 extends parallel to the central axis A to an emergency outlet 24 .
- An emergency check valve 26 is located in the emergency outlet 24 for permitting the gas to escape the output channel 22 in an event that a pressure of the gas in the primary regulator body 16 rises above a predetermined level.
- the primary regulator body 16 further defines a primary outlet 28 that extends radially to the output channel 22 .
- the primary outlet 28 is configured to be connected to the consumer 14 of the fluid for delivering the fluid to the consumer.
- the primary regulator body 16 further defines at least one pressure gauge passage 30 (schematically shown) that extends into the output channel 22 , or any other region of the primary regulator body 16 for monitoring a fluid pressure in the primary regulator body 16 via a pressure gauge 31 (schematically shown). It should be appreciated that various types of pressure gauges could be used and they could detect a pressure at various regions of the primary regulator body 16 .
- the primary regulator body 16 further presents a first annular rim 32 that extends about the axis A above the central channel 18 at the top of the primary regulator body 16 .
- a cover 34 overlies the primary regulator body 16 above the central channel 18 .
- the cover 34 has a second annular rim 36 that receives, and is sealingly connected to the first annular rim 32 of the primary regulator body 16 .
- the cover 34 defines a compartment that fluidly connects the central channel 18 with the output channel 22 .
- a generally disc-shaped diaphragm seal 38 extends across a top of the first annular rim 32 and divides the compartment into a lower compartment space 40 beneath the diaphragm seal 38 and an upper compartment space 42 above the diaphragm seal 38 .
- the lower compartment space 40 is sealed relative to the upper compartment space 42 via the diaphragm seal 38 such that pressurized fluid that is traveling between the central channel 18 and the outlet channel 22 is confined to the lower compartment space 40 .
- a ring-shaped regulator gasket 44 is positioned axially above and against the diaphragm seal 38 along a perimeter of the diaphragm seal 38 .
- the cover 34 axially engages the regular gasket 44 , thereby axially sealing the diaphragm seal 38 between the regulator gasket 44 and the first annular rim 32 .
- a diaphragm seat 46 is positioned in the upper compartment space 42 axially against the diaphragm seal 38 .
- the diaphragm seat 46 is axially moveable within the upper compartment space 42 .
- a cover biasing element 48 such as a spring, is positioned about the axis A in the upper compartment space 42 and includes a bottom end 50 that engages the diaphragm seat 46 , and a top end 52 that engages a spring seat 54 such that the bottom end 50 biases the diaphragm seat 46 downwardly.
- An adjustment screw 56 extends through a top of the cover 34 along the axis A and axially engages a top of the spring seat 54 .
- a nut 58 is positioned above the cover 34 along the axis A and threadedly receives the adjustment screw 56 such that rotation of the adjustment screw 56 axially moves the diaphragm seat 46 , thereby compressing or relieving the cover biasing element 48 in order to increase or decrease movement of the diaphragm seat 46 against the diaphragm seal 38 and associated stem pin 124 , thereby adjusting a flow of the fluid between the primary inlet 20 and the primary output 28 (discussed in further detail below).
- a pressure regulating valve 60 is positioned in the central channel 18 of the primary regulator body 16 and is configured to regulate the flow of gas from the primary inlet 20 to the output channel 22 , thereby ultimately regulating an output of gas from the source 12 of fluid to the consumer 14 .
- the pressure regulating valve 60 includes a housing 62 that is removably received by the central channel 18 of the primary regulator body 16 and connectable to the primary regulator body 16 via a coupling mechanism 64 A, 64 B. It should be appreciated that the easy removability and replacement of the pressure regulating valve 60 via the coupling mechanism 64 A, 64 B allows the pressure regulating valve 60 , and notably its seal seat 66 (discussed in further detail below) to be tested independently from the primary regulator body 16 . This advantageously permits the pressure regulating valve 60 to be tested prior to being transported to a job site where it is installed.
- the housing 62 of the pressure regulating valve 60 extends about and along the axis A and extends axially between a bottom 68 and a top 70 .
- the housing 62 defines a passage 72 that extends axially between an inlet 74 at the bottom 68 of the housing 62 and an outlet 76 at top 70 of the housing 62 .
- the housing 62 also has an outer wall 78 that defines an upper region 80 , a central region 82 and a lower region 84 , wherein the upper region 80 has a larger radius than the central region 82 , and the central region 82 has a larger radius than the lower region 84 .
- the coupling mechanism 64 A, 64 B takes the form of a plurality of outside threads 64 A defined along the central region 82 of the outer wall 78 and a plurality of inside threads 64 B in the central channel 22 of the primary regulator body 16 .
- the coupling mechanism 64 could include various other styles of coupling mechanisms including, but not limited to, an arrangement of tabs, an interference fit, or an adhesive.
- the upper region 80 of the housing presents a hexagonal region 86 at the top 70 of the housing 62 for facilitating rotating of the housing 62 relative to the primary regulator body 16 with a tool, such as a wrench, to provide tightening and loosing of the outside and inside threads 64 A, 64 B.
- a first outer seal 88 is located at a meeting between the upper region 80 and the central region 82 for sealing the housing 62 relative to the primary regulator body 16 along an upper step 90 of the primary regulator body 16 in the central channel 18 .
- a second outer seal 92 is located at a meeting between the central region 82 and the lower region 84 for further sealing the housing 62 relative to the primary regulator body 16 along a lower step 94 of the primary regulator body 16 in the central channel 18 .
- the passage 72 defines a top region 96 and a bottom region 98 , where a radius of the top region 96 is larger than a radius of the bottom region 98 .
- the housing 62 further defines a bottom flange 100 that extends radially into the passage 72 at the bottom region 98 of the passage 72 , such that the bottom flange 100 defines the inlet 74 .
- a filter 102 may be positioned axially against the bottom flange 100 for filtering the gas as it enters the passage 72 .
- a seat stem 104 is positioned in the passage 72 of the housing 62 and is axially moveable in the passage 72 .
- the seat stem 104 has a cylindrical portion 106 that extends along the axis A, and a cap portion 108 that is positioned axially on top of the cylindrical portion 106 .
- the cap portion 108 extends radially outwardly relative to the cylindrical portion 106 , and has a radially inwardly sloping shape as it extends axially.
- a rod portion 110 is located axially on top of the cap portion 108 and extends axially relative to the cap portion 110 .
- a lower biasing element 112 is located in the passage 72 and, as shown in FIG. 3 , may extend axially between the filter 102 and a bottom of the cap portion 108 of the seat stem 104 .
- the lower biasing element 112 may extend between the bottom flange 100 and the bottom of the cap portion 108 .
- the lower biasing element 112 partially surrounds the cylindrical portion 106 of the seat stem 104 .
- the lower biasing element 112 biases the seat stem 104 axially upwardly.
- the lower biasing element 112 is a spring, but other styles of biasing elements could be used.
- the seal seat 66 is positioned axially against the cap portion 108 of the seat stem 104 .
- the seal seat 66 is made of a flexible sealing material, such as Teflon®.
- Teflon® a flexible sealing material
- the seal seat 66 generally has a washer shape and defines an opening 114 along the axis A for permitting gas to flow therethrough when the pressure regulating valve 60 is in an open position (discussed below).
- a tube-shaped protrusion 116 extends upwardly from a top surface of the seal seat 66 around the opening 114 .
- a seat retainer 118 is positioned in the passage 72 axially about the seat seal 66 .
- the seat retainer 118 generally has a washer shape.
- the seat retainer 118 is configured to inhibit axially upward movement of the seal seat 66 .
- the seat retainer 118 defines an orifice 120 along the axis in alignment with the opening 114 of the seal seat 66 , and which axially receives the protrusion 116 of the seal seat 66 .
- the housing 62 further defines a sealing step 122 at the meeting of the top region 96 and the bottom region 98 of the passage 72 . As shown in FIG. 1 , once assembled, the seal seat 66 is compressed axially between the seat retainer 118 and the sealing step 122 .
- the seat stem 104 is moveable along the axis A between a closed position in which the cap portion 108 of the seat stem 104 engages the seal seat 66 and prevents a flow of the fluid through the opening 114 of the seal seat 66 , and an open position in which the seat stem 104 is spaced axially from the seal seat 66 and permits a flow of the fluid through the opening 114 .
- the stem pin 124 is located exactly above the seat stem 104 and is axially moveable.
- the stem pin 124 defines a bore 126 along the axis A that is configured to receive the rod portion 110 of the seat stem 104 .
- the bore 126 terminates at an end 128 that engages a terminal end of the rod portion 110 such that downward axial movement of the stem pin 124 causes downward axial movement of the seat stem 104 toward the open position.
- a top of the stem pin 124 engages the diaphragm seal 38 such that axial movement of the diaphragm seal 38 as a result of rotation of the adjustment screw 56 and axial movement of the diaphragm seal 38 causes corresponding axial movement of the stem pin 124 and seat stem 104 . More particularly, downward axial movement of the stem pin 124 causes the seat stem 104 to move to the open position, while upward movement of the stem pin 124 causes movement of the seat stem 104 into the open position via a force applied by the biasing element 112 .
- a hollow stem nut 130 is received and coupled to the housing 62 in the top region 96 of the passage 72 at the top of the housing 62 .
- the stem nut 130 has a dome portion 132 and a wall portion 134 axially below the dome portion 132 .
- the dome portion 132 defines a top opening 136 along the axis A, and one or more radial outlets 138 through which the fluid flows after flowing through the opening 114 of the seal seat 66 such that the fluid may subsequently pass through one of the outlets 24 , 28 .
- the wall portion 134 of the stem nut 130 defines a plurality of outside threads 140 for being threadedly coupled to a plurality of inside threads 142 defined by the housing 62 inside the passage 72 to permit the stem nut 130 to move axially in response to rotation of the stem nut 130 .
- FIG. 3 shows a position in which the stem nut 130 in an untightened position
- FIG. 1 shows the stem nut 130 in a tightened position.
- the stem pin 124 partially extends axially through the top opening 136 of the stem nut 130 such that it may axially move relative to the stem nut 130 .
- the stem pin 124 presents an annular flange 144 that extends radially at a location axially adjacent to a bottom of the stem pin 124 .
- the annular flange 144 inhibits axial upward movement of the stem pin 124 by engaging the dome portion 130 of the stem nut 130 .
- first, second, third, etc. may be used herein to described various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as “first,” “second,” and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
- Spatially relative terms such as “inner,” “outer,” “beneath,” “below,” “lower,” “above,” “upper,” and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “below” or “beneath” other elements or features would then be oriented “above” the other elements or features. Thus, the example term “below” can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Abstract
A pressure regulating valve including a seal seat that defines an opening. A seat stem is moveable between a closed position in which the seat stem engages the seal seat and prevents fluid flow through the opening, and an open position in which the seat stem is spaced from the seal seat and permits fluid flow through the opening. A biasing element biases the seat stem in the closed position. A housing defines a passage that extends between an inlet and an outlet. The seal seat, seat stem and biasing element are positioned in the passage such that movement of the seat stem between the closed and open positions controls flow of the fluid between the inlet and outlet. The housing has an outer wall including a coupling mechanism for fixing the housing inside a channel of a primary regulator body.
Description
- The present disclosure relates to pressure regulating valves, such as those used to regulate a pressure of fluid entering a consumer device like a carbonated beverage dispenser.
- This section provides background information related to the present disclosure which is not necessarily prior art.
- It is known in the beverage industry to use carbon dioxide (CO2), or other gasses, to carbonate beverages and to move the beverages from a storage tank to a dispensing mechanism. For example, a “post mix” soda dispenser typically include a source of CO2, a source of water, a carbonator for mixing the water and CO2, and a syrup pump for drawing from a source of flavored syrup. Under this system, the syrup is combined with the carbonated water while the beverage is dispensed.
- Such beverage systems typically include a pressure regulating assembly that is located adjacent to an outlet of the source of CO2 for regulating a pressure of CO2 escaping the source of CO2 prior to being delivered to the carbonator. Pressure regulating assemblies typically include a regulator body which defines a channel that is fluidly connected to the gas source. A seal seat of a flexible material, such as Teflon® is located in the channel and is selectively engaged by a seat stem which is moveable between a closed position in which the seat stem engages the seal seat to seal the passage, and an open position in which the seat stem is spaced from the passage, permitting gas to flow through the channel. A spring biases the seat stem in the closed position, and a stem pin selectively moves the seal seat between the open and closed positions in response to rotation of a handle by an operator to adjust an amount of flow through the channel.
- It is known for such seal seats to fail after prolonged use, thereby requiring replacement. An issue with such assemblies is a replacement seal seat can unknowingly be defective or damaged prior to installation, and the seal may only be tested after installation of the seal seat at the site where the beverage dispenser is located.
- Accordingly, there remains a need for improvements to such pressure regulating assemblies.
- This section provides a general summary of the disclosure and is not intended to be interpreted as a comprehensive listing of its full scope or of all of its objects, aspects, features and/or advantages.
- A pressure regulating valve is provided for use with a pressure regulating assembly for regulating a flow of a fluid from a source of the fluid to a fluid consumer. The pressure regulating valve includes a seal seat that defines an opening. A seat stem is moveable between a closed position in which the seat stem engages the seal seat and prevents a flow of fluid through the opening of the seal seat, and an open position in which the seat stem is spaced from the seal seat and permits a flow of the fluid through the opening of the seal seat. A biasing element biases the seat stem in the closed position. A housing defines a passage that extends between an inlet and an outlet. The seal seat, seat stem and biasing element are positioned in the passage of the housing such that movement of the seat stem between the closed and open positions permits or prevents the flow of the fluid between the inlet and outlet of the housing. A coupling mechanism fixes the housing inside a channel of a regulator body of the pressure regulating assembly.
- Because the seal seat is located in a housing that is independent of the primary regulator body, the seal seat may be tested prior to shipping and installation at a job site. This saves time and material costs by ensuring that a reliable seal seat is installed at the job site. Furthermore, the housing may easily be retrofitted into channels of existing primary regulator bodies, thus providing a simple, quick installation process for seal seat replacements.
- The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations thereof such that the drawings are not intended to limit the scope of the present disclosure.
-
FIG. 1 is perspective, cutaway view of an example embodiment of a pressure regulating assembly including a pressure regulating valve; -
FIG. 2 is a side view of the pressure regulating valve; -
FIG. 3 is a cross-sectional view of the pressure regulating valve; and -
FIG. 4 is an exploded view of the pressure regulating valve. - Example embodiments of a pressure regulating assembly and associated pressure regulating valve will now be described more fully with reference to the accompanying drawings. However, the example embodiments are only provided so that this disclosure will be thorough, and will fully convey the scope to those who are skilled in the art. Numerous specific details are set forth such as examples of specific components, devices, and methods, to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that the example embodiments may be embodied in many different forms that may be combined in various ways, and that neither should be construed to limit the scope of the disclosure. In some example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail.
- More particularly, referring to the figures, wherein like numerals indicate corresponding parts throughout the several views, are shown. A pressure regulating assembly 10 is shown. As best shown in
FIG. 1 , the pressure regulating assembly 10 is configured to regulate a flow of a fluid from a source of fluid 12 (schematically shown) to a consuming mechanism 14 (schematically shown). For example, the pressure regulating assembly 10 may be configured to regulate a flow of CO2 from a source of CO2 gas to a carbonated beverage dispensing machine like a “fountain drink” dispenser. The pressure regulating assembly 10 could also be employed to regulate a flow of other fluids (e.g., nitrous oxide) to various other types of consumers (e.g., a beer dispenser). Although the subsequent discussion primarily references the use of the pressure regulating assembly 10 with gas, it should be appreciated that it could also be used to regulate a flow of other fluids. - The pressure regulating assembly 10 includes a primary regulator body 16. The primary regulator body 16 defines a central channel 18 along a central axis A. The central channel 18 is open at a top of the primary regulator body 16. The primary regulator body 16 further defines a
primary inlet 20 that extends radially to the central channel 18 and is fluidly connected to the central channel 18. Theprimary inlet 20 is configured to receive a fluid from the source offluid 12. The primary regulator body 16 further defines anoutput channel 22 that is fluidly connected to the central channel 18 at the top of the primary regulator body 16. Theoutput channel 22 extends parallel to the central axis A to anemergency outlet 24. An emergency check valve 26 is located in theemergency outlet 24 for permitting the gas to escape theoutput channel 22 in an event that a pressure of the gas in the primary regulator body 16 rises above a predetermined level. The primary regulator body 16 further defines aprimary outlet 28 that extends radially to theoutput channel 22. Theprimary outlet 28 is configured to be connected to theconsumer 14 of the fluid for delivering the fluid to the consumer. - The primary regulator body 16 further defines at least one pressure gauge passage 30 (schematically shown) that extends into the
output channel 22, or any other region of the primary regulator body 16 for monitoring a fluid pressure in the primary regulator body 16 via a pressure gauge 31 (schematically shown). It should be appreciated that various types of pressure gauges could be used and they could detect a pressure at various regions of the primary regulator body 16. - The primary regulator body 16 further presents a first
annular rim 32 that extends about the axis A above the central channel 18 at the top of the primary regulator body 16. A cover 34 overlies the primary regulator body 16 above the central channel 18. The cover 34 has a secondannular rim 36 that receives, and is sealingly connected to the firstannular rim 32 of the primary regulator body 16. The cover 34 defines a compartment that fluidly connects the central channel 18 with theoutput channel 22. - A generally disc-shaped diaphragm seal 38 extends across a top of the first
annular rim 32 and divides the compartment into a lower compartment space 40 beneath the diaphragm seal 38 and anupper compartment space 42 above the diaphragm seal 38. The lower compartment space 40 is sealed relative to theupper compartment space 42 via the diaphragm seal 38 such that pressurized fluid that is traveling between the central channel 18 and theoutlet channel 22 is confined to the lower compartment space 40. - A ring-shaped regulator gasket 44 is positioned axially above and against the diaphragm seal 38 along a perimeter of the diaphragm seal 38. The cover 34 axially engages the regular gasket 44, thereby axially sealing the diaphragm seal 38 between the regulator gasket 44 and the first
annular rim 32. - A diaphragm seat 46 is positioned in the
upper compartment space 42 axially against the diaphragm seal 38. The diaphragm seat 46 is axially moveable within theupper compartment space 42. A cover biasing element 48, such as a spring, is positioned about the axis A in theupper compartment space 42 and includes a bottom end 50 that engages the diaphragm seat 46, and a top end 52 that engages a spring seat 54 such that the bottom end 50 biases the diaphragm seat 46 downwardly. An adjustment screw 56 extends through a top of the cover 34 along the axis A and axially engages a top of the spring seat 54. A nut 58 is positioned above the cover 34 along the axis A and threadedly receives the adjustment screw 56 such that rotation of the adjustment screw 56 axially moves the diaphragm seat 46, thereby compressing or relieving the cover biasing element 48 in order to increase or decrease movement of the diaphragm seat 46 against the diaphragm seal 38 and associatedstem pin 124, thereby adjusting a flow of the fluid between theprimary inlet 20 and the primary output 28 (discussed in further detail below). - A pressure regulating valve 60 is positioned in the central channel 18 of the primary regulator body 16 and is configured to regulate the flow of gas from the
primary inlet 20 to theoutput channel 22, thereby ultimately regulating an output of gas from thesource 12 of fluid to theconsumer 14. The pressure regulating valve 60 includes ahousing 62 that is removably received by the central channel 18 of the primary regulator body 16 and connectable to the primary regulator body 16 via acoupling mechanism 64A, 64B. It should be appreciated that the easy removability and replacement of the pressure regulating valve 60 via thecoupling mechanism 64A, 64B allows the pressure regulating valve 60, and notably its seal seat 66 (discussed in further detail below) to be tested independently from the primary regulator body 16. This advantageously permits the pressure regulating valve 60 to be tested prior to being transported to a job site where it is installed. - More particularly, as best shown in
FIGS. 2 and 3 , thehousing 62 of the pressure regulating valve 60 extends about and along the axis A and extends axially between a bottom 68 and a top 70. Thehousing 62 defines apassage 72 that extends axially between aninlet 74 at the bottom 68 of thehousing 62 and anoutlet 76 attop 70 of thehousing 62. Thehousing 62 also has anouter wall 78 that defines anupper region 80, acentral region 82 and a lower region 84, wherein theupper region 80 has a larger radius than thecentral region 82, and thecentral region 82 has a larger radius than the lower region 84. - According to the example embodiment, the
coupling mechanism 64A, 64B takes the form of a plurality ofoutside threads 64A defined along thecentral region 82 of theouter wall 78 and a plurality of inside threads 64B in thecentral channel 22 of the primary regulator body 16. It should be appreciated that the coupling mechanism 64 could include various other styles of coupling mechanisms including, but not limited to, an arrangement of tabs, an interference fit, or an adhesive. - The
upper region 80 of the housing presents a hexagonal region 86 at the top 70 of thehousing 62 for facilitating rotating of thehousing 62 relative to the primary regulator body 16 with a tool, such as a wrench, to provide tightening and loosing of the outside and insidethreads 64A, 64B. A firstouter seal 88 is located at a meeting between theupper region 80 and thecentral region 82 for sealing thehousing 62 relative to the primary regulator body 16 along an upper step 90 of the primary regulator body 16 in the central channel 18. A secondouter seal 92 is located at a meeting between thecentral region 82 and the lower region 84 for further sealing thehousing 62 relative to the primary regulator body 16 along a lower step 94 of the primary regulator body 16 in the central channel 18. - The
passage 72 defines atop region 96 and a bottom region 98, where a radius of thetop region 96 is larger than a radius of the bottom region 98. Thehousing 62 further defines abottom flange 100 that extends radially into thepassage 72 at the bottom region 98 of thepassage 72, such that thebottom flange 100 defines theinlet 74. As illustrated inFIGS. 3 and 4 , afilter 102 may be positioned axially against thebottom flange 100 for filtering the gas as it enters thepassage 72. - A
seat stem 104 is positioned in thepassage 72 of thehousing 62 and is axially moveable in thepassage 72. The seat stem 104 has acylindrical portion 106 that extends along the axis A, and acap portion 108 that is positioned axially on top of thecylindrical portion 106. Thecap portion 108 extends radially outwardly relative to thecylindrical portion 106, and has a radially inwardly sloping shape as it extends axially. Arod portion 110 is located axially on top of thecap portion 108 and extends axially relative to thecap portion 110. - A
lower biasing element 112 is located in thepassage 72 and, as shown inFIG. 3 , may extend axially between thefilter 102 and a bottom of thecap portion 108 of theseat stem 104. Alternatively, as shown inFIG. 1 , thelower biasing element 112 may extend between thebottom flange 100 and the bottom of thecap portion 108. Thelower biasing element 112 partially surrounds thecylindrical portion 106 of theseat stem 104. Thelower biasing element 112 biases theseat stem 104 axially upwardly. In the example embodiment, thelower biasing element 112 is a spring, but other styles of biasing elements could be used. - The
seal seat 66 is positioned axially against thecap portion 108 of theseat stem 104. Theseal seat 66 is made of a flexible sealing material, such as Teflon®. As best shown inFIGS. 3 and 4 , theseal seat 66 generally has a washer shape and defines anopening 114 along the axis A for permitting gas to flow therethrough when the pressure regulating valve 60 is in an open position (discussed below). A tube-shapedprotrusion 116 extends upwardly from a top surface of theseal seat 66 around theopening 114. - A
seat retainer 118 is positioned in thepassage 72 axially about theseat seal 66. Theseat retainer 118 generally has a washer shape. Theseat retainer 118 is configured to inhibit axially upward movement of theseal seat 66. Theseat retainer 118 defines anorifice 120 along the axis in alignment with theopening 114 of theseal seat 66, and which axially receives theprotrusion 116 of theseal seat 66. - The
housing 62 further defines a sealingstep 122 at the meeting of thetop region 96 and the bottom region 98 of thepassage 72. As shown inFIG. 1 , once assembled, theseal seat 66 is compressed axially between theseat retainer 118 and the sealingstep 122. - During use, the
seat stem 104 is moveable along the axis A between a closed position in which thecap portion 108 of theseat stem 104 engages theseal seat 66 and prevents a flow of the fluid through theopening 114 of theseal seat 66, and an open position in which theseat stem 104 is spaced axially from theseal seat 66 and permits a flow of the fluid through theopening 114. - The
stem pin 124 is located exactly above theseat stem 104 and is axially moveable. Thestem pin 124 defines a bore 126 along the axis A that is configured to receive therod portion 110 of theseat stem 104. The bore 126 terminates at anend 128 that engages a terminal end of therod portion 110 such that downward axial movement of thestem pin 124 causes downward axial movement of theseat stem 104 toward the open position. As best shown inFIG. 1 , a top of thestem pin 124 engages the diaphragm seal 38 such that axial movement of the diaphragm seal 38 as a result of rotation of the adjustment screw 56 and axial movement of the diaphragm seal 38 causes corresponding axial movement of thestem pin 124 andseat stem 104. More particularly, downward axial movement of thestem pin 124 causes theseat stem 104 to move to the open position, while upward movement of thestem pin 124 causes movement of theseat stem 104 into the open position via a force applied by the biasingelement 112. - A
hollow stem nut 130 is received and coupled to thehousing 62 in thetop region 96 of thepassage 72 at the top of thehousing 62. Thestem nut 130 has adome portion 132 and awall portion 134 axially below thedome portion 132. Thedome portion 132 defines a top opening 136 along the axis A, and one or moreradial outlets 138 through which the fluid flows after flowing through theopening 114 of theseal seat 66 such that the fluid may subsequently pass through one of theoutlets wall portion 134 of thestem nut 130 defines a plurality ofoutside threads 140 for being threadedly coupled to a plurality ofinside threads 142 defined by thehousing 62 inside thepassage 72 to permit thestem nut 130 to move axially in response to rotation of thestem nut 130.FIG. 3 shows a position in which thestem nut 130 in an untightened position, andFIG. 1 shows thestem nut 130 in a tightened position. - The
stem pin 124 partially extends axially through the top opening 136 of thestem nut 130 such that it may axially move relative to thestem nut 130. Thestem pin 124 presents anannular flange 144 that extends radially at a location axially adjacent to a bottom of thestem pin 124. Theannular flange 144 inhibits axial upward movement of thestem pin 124 by engaging thedome portion 130 of thestem nut 130. - The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms “a,” “an,” and “the” may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms “comprises,” “comprising,” “including,” and “having,” are inclusive and therefore specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in that particular order discussed or illustrated, unless specifically identified as an order of performance. It is also to be understood that additional or alternative steps may be employed.
- When an element or layer is referred to as being “on,” “engaged to,” “connected to,” or “coupled to” another element or layer, it may be directly on, engaged, connected or coupled to the other element or later, or intervening element or layers may be present. In contrast, when an element is referred to as being “directly on,” “directly engaged to,” “directly connected to,” or “directly coupled to” another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a like fashion (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items.
- Although the terms first, second, third, etc. may be used herein to described various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as “first,” “second,” and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
- Spatially relative terms, such as “inner,” “outer,” “beneath,” “below,” “lower,” “above,” “upper,” and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “below” or “beneath” other elements or features would then be oriented “above” the other elements or features. Thus, the example term “below” can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
- The foregoing description of the embodiments has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment (including all of the described embodiments), even if not specifically shown or described. The same may also be varied in many ways. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.
Claims (20)
1. A pressure regulating valve for a pressure regulating assembly for regulating a flow of a fluid from a source of the fluid to a fluid consumer, the pressure regulating valve comprising:
a seal seat defining an opening;
a seat stem moveable between a closed position in which the seat stem engages the seal seat and prevents a flow of fluid through the opening of the seal seat, and an open position in which the seat stem is spaced from the seal seat and permits a flow of the fluid through the opening of the seal seat;
a biasing element biasing the seat stem in the closed position;
a housing extending defining a passage extending between an inlet and an outlet; and
the seal seat, seat stem and biasing element positioned in the passage of the housing such that movement of the seat stem between the closed and open positions permits or prevents the flow of the fluid between the inlet and outlet of the housing, and wherein a coupling mechanism fixes the housing inside a channel of a regulator body of the pressure regulating assembly.
2. The pressure regulating valve as set forth in claim 1 , wherein the coupling mechanism includes a plurality of outside threads on an outer wall of the housing configured to be threadedly connected with a plurality of inside threads in the channel of the regulator body.
3. The pressure regulating valve as set forth in claim 2 , wherein the housing presents a hexagonal region adjacent to a top of the housing for permitting the housing to be threadedly rotated into the channel of the regulator body along the inside and outside threads.
4. The pressure regulating valve as set forth in claim 1 , further including a stem pin engaging the seat stem and moveable for providing movement to the seat stem in response to effectuated movement of the stem pin by an operator.
5. The pressure regulating valve as set forth in claim 4 , wherein the stem pin defines a bore terminating at an end, and wherein the seat stem defines a rod portion and extends through the opening of the seal seat and received by the bore of the stem pin and engaging the end of the bore of the stem pin such that movement of the stem pin is transferred to the seat stem.
6. The pressure regulating valve as set forth in claim 1 , wherein the biasing element is a spring and extends between the seat stem and a bottom region of the housing at or adjacent to the inlet.
7. The pressure regulating valve as set forth in claim 6 , wherein the passage of the housing extends along an axis between the inlet and the outlet, and wherein the housing defines a bottom flange extending radially into the passage and defining the inlet, and wherein a filter is positioned axially against the bottom flange for filtering the fluid as it enters the passage.
8. The pressure regulating valve as set forth in claim 7 , wherein the spring extends axially between the filter and the seat stem.
9. The pressure regulating valve as set forth in claim 1 , wherein the passage extends along an axis between the inlet and the outlet, and further including a seat retainer positioned in the passage of the housing axially above and against the seal seat for inhibiting axially upward movement of the seal seat.
10. The pressure regulating valve as set forth in claim 9 , wherein the housing defines a sealing step extending radially in the passage, and wherein the seal seat is compressed axially between the seat retainer and the sealing step.
11. The pressure regulating valve as set forth in claim 9 , wherein the seat retainer defines an orifice along the axis for allowing the fluid to flow therethrough after flowing through the opening of the seal set.
12. The pressure regulating valve as set forth in claim 9 , further including a stem nut generally having a hollow cap shape with a dome portion and a wall portion, wherein the stem nut is fixed to the housing in the channel axially against the sealing step for axially holding the sealing step in place, and wherein the stem nut defines at least one radial outlet along the wall portion of the stem nut through which the fluid flows after flowing through the opening of the seal seat.
13. The pressure regulating valve as set forth in claim 12 , wherein the wall portion of the stem nut defines a plurality of outside threads for being threadedly coupled to a plurality of inside threads defined by the housing inside the passage to cause the stem nut to move axially in response to rotation of the stem nut.
14. The pressure regulating valve as set forth in claim 13 , wherein the stem nut defines a top opening along the axis at a top of the dome portion of the stem nut, and wherein a stem pin partially extends axially through the top opening and axially engages the seat stem and is axially moveable for providing movement to the seat stem in response to effectuated movement of the stem pin by an operator.
15. The pressure regulating valve as set forth in claim 14 , wherein the stem pin presents an annular flange extending radially outwardly at or adjacent to a bottom of the stem pin, and wherein the annular flange inhibits axial movement of the stem pin by engaging the dome portion of the stem nut.
16. The pressure regulating valve as set forth in claim 1 , wherein the passage extends along an axis between the inlet and the outlet, wherein the seat stem has a cap portion having a radially inwardly sloping shape as a top surface of the cap portion extends axially, and wherein the cap portion is configured to engage the seal seat.
17. The pressure regulating valve as set forth in claim 16 , wherein the seat stem further includes a cylindrical portion extending axially from the cap portion, and wherein the biasing element surrounds the cylindrical portion.
18. The pressure regulating valve as set forth in claim 1 , wherein at least one outer seal is positioned about the housing for preventing the fluid from flowing between the housing and the regulator body in the channel.
19. The pressure regulating valve as set forth in claim 18 , wherein an outer wall of the housing has at least a first region and a second region, and wherein a radius of the first region is larger than a radius of the second region such that the housing can be positioned on a step in the channel of the regulator body.
20. The pressure regulating valve as set forth in claim 19 , wherein the at least one outer seal is positioned between the first and second regions of the outer wall.
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US17/860,311 US11885419B1 (en) | 2022-07-08 | 2022-07-08 | Pressure regulating valve |
US18/539,779 US20240110629A1 (en) | 2022-07-08 | 2023-12-14 | Pressure regulating valve |
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US17/860,311 US11885419B1 (en) | 2022-07-08 | 2022-07-08 | Pressure regulating valve |
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US18/539,779 Continuation US20240110629A1 (en) | 2022-07-08 | 2023-12-14 | Pressure regulating valve |
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US20240011566A1 true US20240011566A1 (en) | 2024-01-11 |
US11885419B1 US11885419B1 (en) | 2024-01-30 |
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US18/539,779 Pending US20240110629A1 (en) | 2022-07-08 | 2023-12-14 | Pressure regulating valve |
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FR2941762A1 (en) | 2009-02-03 | 2010-08-06 | Taema | DEVICE FOR SELECTIVELY SEALING A FLUID PASSAGE, AND TAP COMPRISING SUCH A DEVICE |
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US1566255A (en) * | 1923-10-13 | 1925-12-15 | Kelvinator Corp | Refrigerating apparatus |
US2878830A (en) * | 1956-02-27 | 1959-03-24 | Cash A W Co | Fluid control |
US3250288A (en) * | 1963-02-25 | 1966-05-10 | Hammon Prec Equipment Company | Gas pressure regulator |
US3712333A (en) * | 1970-09-23 | 1973-01-23 | A Semon | Fluid pressure compensating regulator |
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US11885419B1 (en) | 2024-01-30 |
US20240110629A1 (en) | 2024-04-04 |
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