US2014314A - Adjustable orifice valve - Google Patents

Adjustable orifice valve Download PDF

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Publication number
US2014314A
US2014314A US552459A US55245931A US2014314A US 2014314 A US2014314 A US 2014314A US 552459 A US552459 A US 552459A US 55245931 A US55245931 A US 55245931A US 2014314 A US2014314 A US 2014314A
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Prior art keywords
valve
well
orifice valve
adjustable orifice
seat
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Expired - Lifetime
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US552459A
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Loyd F Defenbaugh
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Phillips Petroleum Co
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Phillips Petroleum Co
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Priority to US552459A priority Critical patent/US2014314A/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00Valve arrangements for boreholes or wells
    • E21B34/02Valve arrangements for boreholes or wells in well heads
    • E21B34/025Chokes or valves in wellheads and sub-sea wellheads for variably regulating fluid flow
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift 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
    • F16K1/32Details
    • F16K1/34Cutting-off parts, e.g. valve members, seats
    • F16K1/36Valve members
    • F16K1/38Valve members of conical shape
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift 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
    • F16K1/32Details
    • F16K1/54Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve

Definitions

  • My invention relates to ow control apparatus and more particularly to a device of that character commonly known as a "flow bean for choking and adjustably controlling the ow of oil and gas from wells.
  • the principal objects of my invention are. to provide a device for restricting the llow of well fluid to reduce its velocity and consequently decrease the sand-carrying power of the oil and gas issuing from the. well; to embody means for reducing to a minimum thecutting action of the sand carried in the well uid; and to provide means for readily adjusting the amount of restriction placed on the ilud so that the proper proportion thereof may be delivered from the well.
  • Fig. 1 is a central longitudinal section of the control device shown in closed condition.
  • Fig. 2 is a perspective view of the valve parts in disassembled relation with a nipple shown partly in section to more clearly disclose its construction.
  • Fig. 3 is a cross section on the line 3-3, Fig. l.
  • I designates the upper end of a conduit such as well tubing projecting above a well hole, and preferably-comprises the inlet for the apparatus although it would also serve as an outlet.
  • the upper end of the conduit is provided with external threads 2 for engaging the internally threaded neck 3 of a T-fltting 4 having aligning, internally-threaded, opposite open ends 5 and 6.
  • a nipple 'I Secured in the open end 5 is a nipple 'I which may be provided with external threads 8 for connecting the device ⁇ to anoutlet conduit 9.
  • the longitudinal opening of the nipple comprises oppositely directed conical portions I and Il meeting at the approximate center of the nipple in a constricted bore I2, and the. outer end oi.' the portion II terminates in a more abruptly diverging wall I3.
  • valve seat member I4 Snugly engaging the wall portion II is a valve seat member I4 having an outer face complementary to the wall I I, and including a linear, cylindrical, bore I5. Each of the ends of the seat member are tapered outwardly as shown at 5 I 6 and I 1 respectively.
  • valve plug I8 Slidably mounted in the opening I5 of the seat member is a valve plug I8 having a head I9 provided with a forwardly tapered surface 20 complementary to the 4tapered end I 1 of the seat 10 member to cooperate therewith, and terminating in a frusto-conical body portion 2
  • Means for moving the valve plug to open or closed position includes a valve stem 23 preferably anchored to the valve body by a threaded pin 25 24 engaging an internally threaded socket 25 of the body and secured in assembled condition therewith by a pin 26 extending transversely through aligning openings 21 and 28 in the pin and body respectively.
  • a guide and sealing member 29 for the valve stem includes a head 30 engaging the internally threaded end 6 of the T-fltting, and is provided with a, longitudinal guide opening 32 for slidably and rotatably receiving the valve stem 23.
  • the sealing member 29 is provided on its end with the screwthreaded portion on which is secured the ring-shaped portion 4I of the member 3
  • Integrally formed arms or ribs 42 extend from the-ring portion 38 and carry a boss 43 at '40 their outer ends which boss is internally threaded, as ai; 33, for receiving a threaded portion 34 of the valve stem, and packing material 35 in a socket 36 of the guide is urged into sealing engagement with the stem by a gland 31 provided in the reduced portion in accordance with common practice.
  • 'Ihe usual wheel 38 is anchored to the extreme outer end of the valve stem by a nut 39 for 50 rotating the stem to move the valve member axially to and from its seat.
  • the valve y member when in fully seated condition, serves as a gate valve for preventing any flow of uid from the well, but as soon as the valve member has been slightly moved from its seat to expose a portion of the V-shaped grooves ⁇ 22, iiow of iluid from the well immediately results.
  • valve plug when in service, is never entirely withdrawn from the seat member but is supported by said member which prevents chat- .tering and possible breakage of the stem.
  • valve plug and seat member should be- While my invention has been described as beingadapted particularly for controlling oil wells it will be apparent that this device will also serve satisfactorily as a valve for other purposes.
  • a ow controlled valve of the type described comprising a casing having an inlet and an outlet, a nipple cooperating with said outlet and having a Venturi-shaped bore consisting of oppositely ilared portions, one oi said portions benow o! iluid therethrough, and provided with a tapered portion from which projects a substantiallyf trusto-conical portion, the tapered portion of the valve head conforming to the tapered valve seat and being of greater diameter than the smallest internal diameter o! the nipple, and means for moving the valve head toward and away from said choke collar and nipple.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Lift Valve (AREA)

Description

Sept. 10, 1935. L. F, DEFENBAUGH i 2,014,314
' ADJUSTABLE ORIFICE VALVE Filed July 22, 1931 INVENTOR. OJ/0 ATTORNEY Patented Sept. 10, 1935 y' AUNITED STATES ADJUSTABLE omnes VALVE Loyd F. Defenbaugh, Oklahoma City, Okla.,
assignor to Phillips Petroleum Company, Bartlesville, Okla., a corporation of Delaware Application July 22, 1931, Serial No. 552,459
1 Claim.
My invention relates to ow control apparatus and more particularly to a device of that character commonly known as a "flow bean for choking and adjustably controlling the ow of oil and gas from wells.
The process of bringing in wells under high gas pressures, particularly in territories where a large amount of sand is present in the well uid,
is accompanied with the grave danger of sandy cutting the master gates and other ttings usually employed for controlling wells. 7
It has also become necessary to restrict th ow ofwells to a predetermined proportion of their entire output in order to comply with certain proration requirements.
The principal objects of my invention, therefore, are. to provide a device for restricting the llow of well fluid to reduce its velocity and consequently decrease the sand-carrying power of the oil and gas issuing from the. well; to embody means for reducing to a minimum thecutting action of the sand carried in the well uid; and to provide means for readily adjusting the amount of restriction placed on the ilud so that the proper proportion thereof may be delivered from the well.
In accomplishing these and other objects of my invention I have provided improved details of structure, the preferred form of which is illustrated in the accompanying drawing, wherein:
Fig. 1 is a central longitudinal section of the control device shown in closed condition.
Fig. 2 is a perspective view of the valve parts in disassembled relation with a nipple shown partly in section to more clearly disclose its construction.
,Y Fig. 3 is a cross section on the line 3-3, Fig. l.
Referring more in detail to the drawing:
I designates the upper end of a conduit such as well tubing projecting above a well hole, and preferably-comprises the inlet for the apparatus although it would also serve as an outlet.
The upper end of the conduit is provided with external threads 2 for engaging the internally threaded neck 3 of a T-fltting 4 having aligning, internally-threaded, opposite open ends 5 and 6. Secured in the open end 5 is a nipple 'I which may be provided with external threads 8 for connecting the device `to anoutlet conduit 9. The longitudinal opening of the nipple comprises oppositely directed conical portions I and Il meeting at the approximate center of the nipple in a constricted bore I2, and the. outer end oi.' the portion II terminates in a more abruptly diverging wall I3.
Snugly engaging the wall portion II is a valve seat member I4 having an outer face complementary to the wall I I, and including a linear, cylindrical, bore I5. Each of the ends of the seat member are tapered outwardly as shown at 5 I 6 and I 1 respectively.
Slidably mounted in the opening I5 of the seat member is a valve plug I8 having a head I9 provided with a forwardly tapered surface 20 complementary to the 4tapered end I 1 of the seat 10 member to cooperate therewith, and terminating in a frusto-conical body portion 2| provided with` grooves 22 increasing toward the forward end of the body both in width and depth.
It will be obvious that the grooves constitute ports in connection with the seat member for communicating the inlet conduit with the outlet 9,. and that by moving the valve body outwardly from its seat these ports will be gradually increased in size to permit the passage of a correspondingly greater amount of uid through the housing. Means for moving the valve plug to open or closed position includes a valve stem 23 preferably anchored to the valve body by a threaded pin 25 24 engaging an internally threaded socket 25 of the body and secured in assembled condition therewith by a pin 26 extending transversely through aligning openings 21 and 28 in the pin and body respectively. A guide and sealing member 29 for the valve stem includes a head 30 engaging the internally threaded end 6 of the T-fltting, and is provided with a, longitudinal guide opening 32 for slidably and rotatably receiving the valve stem 23. The sealing member 29 is provided on its end with the screwthreaded portion on which is secured the ring-shaped portion 4I of the member 3|. Integrally formed arms or ribs 42 extend from the-ring portion 38 and carry a boss 43 at '40 their outer ends which boss is internally threaded, as ai; 33, for receiving a threaded portion 34 of the valve stem, and packing material 35 in a socket 36 of the guide is urged into sealing engagement with the stem by a gland 31 provided in the reduced portion in accordance with common practice.
'Ihe usual wheel 38 is anchored to the extreme outer end of the valve stem by a nut 39 for 50 rotating the stem to move the valve member axially to and from its seat.
Assuming a valve to be constructed and assembled as described, and to be mounted on the outlet end of welltubing, the operation for control- 55 ling the flow of uid from a well would be as follows:
Since the grooves do not extend throughout the entire length of the plug portion, the valve y member, when in fully seated condition, serves as a gate valve for preventing any flow of uid from the well, but as soon as the valve member has been slightly moved from its seat to expose a portion of the V-shaped grooves `22, iiow of iluid from the well immediately results.
Due to the gradually increasing width and depth of the grooves it will be apparent that the sand, after once entering the grooves upon sumcient opening of the valve, will pass freely into the outlet without any restrictions, and cannot therefore impart a serious cutting action on the valve. Consequently the life of a valve o! this character is much prolonged over the usual devices provided for this m1111088, which, due to their form are more subjected to the cutting -action or sandand other abrasive ingredients carried in the oil.
If, however, after an extended period come worn it is necessary only to replace these two members inv order to obtain a fully reconditioned valve.
The valve plug, when in service, is never entirely withdrawn from the seat member but is supported by said member which prevents chat- .tering and possible breakage of the stem.
y of service, the valve plug and seat member should be- While my invention has been described as beingadapted particularly for controlling oil wells it will be apparent that this device will also serve satisfactorily as a valve for other purposes.
What I claim and desire to secure by Letters Patent is:
A ow controlled valve of the type described, comprising a casing having an inlet and an outlet, a nipple cooperating with said outlet and having a Venturi-shaped bore consisting of oppositely ilared portions, one oi said portions benow o! iluid therethrough, and provided with a tapered portion from which projects a substantiallyf trusto-conical portion, the tapered portion of the valve head conforming to the tapered valve seat and being of greater diameter than the smallest internal diameter o! the nipple, and means for moving the valve head toward and away from said choke collar and nipple.
LOYD F. DEFENB'AUGH. .l so
US552459A 1931-07-22 1931-07-22 Adjustable orifice valve Expired - Lifetime US2014314A (en)

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Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2664279A (en) * 1950-08-31 1953-12-29 Bascle Joseph Albon Pressure carburetor and fuel-air ratio regulator
US2771878A (en) * 1952-08-27 1956-11-27 American Optical Corp Intravenous infusion system
DE1062507B (en) * 1952-11-29 1959-07-30 Samson Appbau Aktien Ges Valve cone for control valves
US2980392A (en) * 1957-08-27 1961-04-18 Eugene C Greenwood Combination metering and shut-off valve
US3002380A (en) * 1958-08-13 1961-10-03 Theron A Grove Compressor efficiency tester
US3036810A (en) * 1957-08-12 1962-05-29 Baker Oil Tools Inc Subsurface valve apparatus
US3076494A (en) * 1960-03-28 1963-02-05 Tescom Corp Control valve for cutting torch
US3110320A (en) * 1960-11-22 1963-11-12 Rockwell Mfg Co Liquid flow control valve
US3187775A (en) * 1961-08-21 1965-06-08 Shaffer Tool Works Flow bean
US3390702A (en) * 1964-12-02 1968-07-02 Roger Gilmont Instr Inc Adjustable valve for low fluid flow
DE1273109B (en) * 1962-02-12 1968-07-18 Industriegeraete Fuer Energiet OE metering device for oil burner
US3473781A (en) * 1966-03-10 1969-10-21 Ross Operating Valve Co Adjustable exhaust restrictor
US3599667A (en) * 1969-02-18 1971-08-17 Filter Dynamics International Ventilation control valve
FR2305662A1 (en) * 1975-03-28 1976-10-22 Chappell Industries ADJUSTABLE SPOUT ALLOWING TO ADJUST THE FLOW RATE OF A GAS OR OIL WELL
EP0016304A1 (en) * 1979-03-08 1980-10-01 Jack R. Claycomb Choke for controlling the flow of drilling mud
US4337788A (en) * 1981-02-02 1982-07-06 Smith International Inc. High pressure valve
FR2508588A1 (en) * 1981-06-29 1982-12-31 Centra Buerkle Gmbh & Co VALVE-MIXER OR DISPATCHER
US4377177A (en) * 1979-04-16 1983-03-22 Claycomb Jack R Throttling mud choke apparatus
US4431030A (en) * 1979-08-31 1984-02-14 Bosch-Siemens Hausgerate Gmbh Fluid timing element, especially a pneumatic timing element for use in household appliances, such as electric toasters
US4705062A (en) * 1987-02-18 1987-11-10 Cameron Iron Works, Inc. Choke and improved needle tip therefor
US4707278A (en) * 1984-12-03 1987-11-17 Herion-Werke Kg Control valve
US4721284A (en) * 1986-11-06 1988-01-26 Norriseal Controls Valve plug design
EP0457244A3 (en) * 1990-05-14 1992-03-11 Fuji Photo Film Co., Ltd. Flow control valve
US5544856A (en) * 1994-07-13 1996-08-13 Eaton Corporation Remotely controlling modulated flow to a fuel gas burner and valve therefor
US6293514B1 (en) * 1998-01-21 2001-09-25 A. Theobald Sa Flow regulation valve
US6609697B2 (en) * 2001-09-06 2003-08-26 Robert Andreas Gsteu Vacuum control valve
US20040000654A1 (en) * 2002-06-28 2004-01-01 Erickson Irving C. Precision modulating globe valve
US20040173767A1 (en) * 2003-03-03 2004-09-09 Rod Caskey Non-destructive media flow control valve
EP2019239A1 (en) * 2007-07-02 2009-01-28 Crane Limited A plug for a fluid control valve
US20110139254A1 (en) * 2009-12-10 2011-06-16 Hamilton Sundstrand Corporation Poppet valve with dual flow area gain
CN102296940A (en) * 2011-07-05 2011-12-28 戴义明 Adjustable choke seat
US20120152393A1 (en) * 2010-12-17 2012-06-21 Connect Sales Inc. Frost-Free Vent Assembly
ITMI20120289A1 (en) * 2012-02-27 2013-08-28 Dropsa Spa LUBRICATION DEVICE WITH FLUID LUBRICANT FLOW RATE ADJUSTMENT
US20130277583A1 (en) * 2003-07-17 2013-10-24 Cameron International Corporation Drive Device
US20130277595A1 (en) * 2010-12-01 2013-10-24 Ta Hydronics Ab Regulating valve
CN103591351A (en) * 2012-10-18 2014-02-19 北京熊川阀门制造有限公司 Regulating valve
US20150096641A1 (en) * 2013-10-04 2015-04-09 Pratt & Whitney Canada Corp. Flow regulating apparatus
WO2015116480A1 (en) * 2014-01-30 2015-08-06 Carrier Corporation Ejectors and methods of use
EP3338975A3 (en) * 2016-12-20 2018-07-11 BIESSE S.p.A. Machine for edgebanding panels of wood or the like
CN108758017A (en) * 2018-06-22 2018-11-06 郑州市新玉源机械工业有限公司 A kind of program-controlled adjusting double plunger angle valve
CN108799549A (en) * 2018-07-03 2018-11-13 郑州市新玉源机械工业有限公司 A kind of plunger valve
US20180363785A1 (en) * 2015-12-16 2018-12-20 Zhejiang Sanhua Climate and Appliance Controls Electronic expansion valve and spool thereof
US20190069714A1 (en) * 2017-09-06 2019-03-07 Nuo Feng Lin Milk Foam Generator of Coffee Maker
NO20210053A1 (en) * 2021-01-15 2022-07-18 Droptech As A fluid control system
US11435005B2 (en) * 2019-04-25 2022-09-06 Vault Pressure Control Llc Actuator with spring compression and decoupling
US20220299118A1 (en) * 2021-03-22 2022-09-22 Ichor Systems, Inc. Guided flow valve assembly and system incorporating same
US11513540B2 (en) * 2017-07-19 2022-11-29 Imi Hydronic Engineering, Inc. Pressure compensated flow controller with only two pressures
US20240142003A1 (en) * 2022-10-31 2024-05-02 Dresser, Llc Manufacturing a valve plug to reduce erosion

Cited By (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2664279A (en) * 1950-08-31 1953-12-29 Bascle Joseph Albon Pressure carburetor and fuel-air ratio regulator
US2771878A (en) * 1952-08-27 1956-11-27 American Optical Corp Intravenous infusion system
DE1062507B (en) * 1952-11-29 1959-07-30 Samson Appbau Aktien Ges Valve cone for control valves
US3036810A (en) * 1957-08-12 1962-05-29 Baker Oil Tools Inc Subsurface valve apparatus
US2980392A (en) * 1957-08-27 1961-04-18 Eugene C Greenwood Combination metering and shut-off valve
US3002380A (en) * 1958-08-13 1961-10-03 Theron A Grove Compressor efficiency tester
US3076494A (en) * 1960-03-28 1963-02-05 Tescom Corp Control valve for cutting torch
US3110320A (en) * 1960-11-22 1963-11-12 Rockwell Mfg Co Liquid flow control valve
US3187775A (en) * 1961-08-21 1965-06-08 Shaffer Tool Works Flow bean
DE1273109B (en) * 1962-02-12 1968-07-18 Industriegeraete Fuer Energiet OE metering device for oil burner
US3390702A (en) * 1964-12-02 1968-07-02 Roger Gilmont Instr Inc Adjustable valve for low fluid flow
US3473781A (en) * 1966-03-10 1969-10-21 Ross Operating Valve Co Adjustable exhaust restrictor
US3599667A (en) * 1969-02-18 1971-08-17 Filter Dynamics International Ventilation control valve
FR2305662A1 (en) * 1975-03-28 1976-10-22 Chappell Industries ADJUSTABLE SPOUT ALLOWING TO ADJUST THE FLOW RATE OF A GAS OR OIL WELL
US4047695A (en) * 1975-03-28 1977-09-13 Chappell Industries, Inc. Adjustable choke
EP0016304A1 (en) * 1979-03-08 1980-10-01 Jack R. Claycomb Choke for controlling the flow of drilling mud
US4377177A (en) * 1979-04-16 1983-03-22 Claycomb Jack R Throttling mud choke apparatus
US4431030A (en) * 1979-08-31 1984-02-14 Bosch-Siemens Hausgerate Gmbh Fluid timing element, especially a pneumatic timing element for use in household appliances, such as electric toasters
US4337788A (en) * 1981-02-02 1982-07-06 Smith International Inc. High pressure valve
FR2499200A1 (en) * 1981-02-02 1982-08-06 Smith International VALVE FOR HIGH PRESSURE, IN PARTICULAR FOR PETROLEUM EXPLOITATIONS
FR2508588A1 (en) * 1981-06-29 1982-12-31 Centra Buerkle Gmbh & Co VALVE-MIXER OR DISPATCHER
AT387078B (en) * 1981-06-29 1988-11-25 Centra Buerkle Gmbh & Co MIXING OR DISTRIBUTION VALVE
US4707278A (en) * 1984-12-03 1987-11-17 Herion-Werke Kg Control valve
US4721284A (en) * 1986-11-06 1988-01-26 Norriseal Controls Valve plug design
US4705062A (en) * 1987-02-18 1987-11-10 Cameron Iron Works, Inc. Choke and improved needle tip therefor
EP0457244A3 (en) * 1990-05-14 1992-03-11 Fuji Photo Film Co., Ltd. Flow control valve
US5156188A (en) * 1990-05-14 1992-10-20 Fuji Photo Film Co., Ltd. Flow control valve
US5544856A (en) * 1994-07-13 1996-08-13 Eaton Corporation Remotely controlling modulated flow to a fuel gas burner and valve therefor
US6293514B1 (en) * 1998-01-21 2001-09-25 A. Theobald Sa Flow regulation valve
US6609697B2 (en) * 2001-09-06 2003-08-26 Robert Andreas Gsteu Vacuum control valve
US20040000654A1 (en) * 2002-06-28 2004-01-01 Erickson Irving C. Precision modulating globe valve
US6926249B2 (en) * 2002-06-28 2005-08-09 Invensys Building Systems, Inc. Precision modulating globe valve
US20040173767A1 (en) * 2003-03-03 2004-09-09 Rod Caskey Non-destructive media flow control valve
US20130277583A1 (en) * 2003-07-17 2013-10-24 Cameron International Corporation Drive Device
EP2019239A1 (en) * 2007-07-02 2009-01-28 Crane Limited A plug for a fluid control valve
US20110139254A1 (en) * 2009-12-10 2011-06-16 Hamilton Sundstrand Corporation Poppet valve with dual flow area gain
EP2333460A3 (en) * 2009-12-10 2012-01-04 Hamilton Sundstrand Corporation Poppet valve with dual flow area gain
US8356617B2 (en) * 2009-12-10 2013-01-22 Hamilton Sundstrand Corporation Poppet valve with dual flow area gain
US8833392B2 (en) * 2010-12-01 2014-09-16 Ta Hydronics Ab Regulating valve
US20130277595A1 (en) * 2010-12-01 2013-10-24 Ta Hydronics Ab Regulating valve
US8574045B2 (en) * 2010-12-17 2013-11-05 Dina Warner Frost-free vent assembly
US20120152393A1 (en) * 2010-12-17 2012-06-21 Connect Sales Inc. Frost-Free Vent Assembly
CN102296940A (en) * 2011-07-05 2011-12-28 戴义明 Adjustable choke seat
US9157576B2 (en) * 2012-02-27 2015-10-13 Dropsa S.P.A. Lubrication device with fluid lubricant flow rate regulation
EP2631514A3 (en) * 2012-02-27 2014-02-26 DROPSA S.p.A. Lubrication device with fluid lubricant flow rate regulation
US20130220737A1 (en) * 2012-02-27 2013-08-29 Dropsa S.P.A. Lubrication device with fluid lubricant flow rate regulation
ITMI20120289A1 (en) * 2012-02-27 2013-08-28 Dropsa Spa LUBRICATION DEVICE WITH FLUID LUBRICANT FLOW RATE ADJUSTMENT
CN103591351A (en) * 2012-10-18 2014-02-19 北京熊川阀门制造有限公司 Regulating valve
US20150096641A1 (en) * 2013-10-04 2015-04-09 Pratt & Whitney Canada Corp. Flow regulating apparatus
WO2015116480A1 (en) * 2014-01-30 2015-08-06 Carrier Corporation Ejectors and methods of use
EP3392534A4 (en) * 2015-12-16 2019-10-09 Zhejiang Sanhua Climate and Appliance Controls Group Co. Ltd. Electronic expansion valve and spool thereof
US20180363785A1 (en) * 2015-12-16 2018-12-20 Zhejiang Sanhua Climate and Appliance Controls Electronic expansion valve and spool thereof
EP3338975A3 (en) * 2016-12-20 2018-07-11 BIESSE S.p.A. Machine for edgebanding panels of wood or the like
US11513540B2 (en) * 2017-07-19 2022-11-29 Imi Hydronic Engineering, Inc. Pressure compensated flow controller with only two pressures
US20190069714A1 (en) * 2017-09-06 2019-03-07 Nuo Feng Lin Milk Foam Generator of Coffee Maker
US10736459B2 (en) * 2017-09-06 2020-08-11 Nuo Feng Lin Milk foam generator of coffee maker
CN108758017A (en) * 2018-06-22 2018-11-06 郑州市新玉源机械工业有限公司 A kind of program-controlled adjusting double plunger angle valve
CN108799549A (en) * 2018-07-03 2018-11-13 郑州市新玉源机械工业有限公司 A kind of plunger valve
US11435005B2 (en) * 2019-04-25 2022-09-06 Vault Pressure Control Llc Actuator with spring compression and decoupling
NO20210053A1 (en) * 2021-01-15 2022-07-18 Droptech As A fluid control system
NO346767B1 (en) * 2021-01-15 2022-12-19 Droptech As A fluid control system and method for operating the fluid system
US20220299118A1 (en) * 2021-03-22 2022-09-22 Ichor Systems, Inc. Guided flow valve assembly and system incorporating same
US12222039B2 (en) * 2021-03-22 2025-02-11 Ichor Systems, Inc. Guided flow valve assembly and system incorporating same
US20240142003A1 (en) * 2022-10-31 2024-05-02 Dresser, Llc Manufacturing a valve plug to reduce erosion
US12196341B2 (en) * 2022-10-31 2025-01-14 Dresser, Llc Manufacturing a valve plug to reduce erosion

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