CN201795064U - Magnetic coupling thermostatic valve - Google Patents
Magnetic coupling thermostatic valve Download PDFInfo
- Publication number
- CN201795064U CN201795064U CN2009202778731U CN200920277873U CN201795064U CN 201795064 U CN201795064 U CN 201795064U CN 2009202778731 U CN2009202778731 U CN 2009202778731U CN 200920277873 U CN200920277873 U CN 200920277873U CN 201795064 U CN201795064 U CN 201795064U
- Authority
- CN
- China
- Prior art keywords
- magnetic
- sleeve
- valve
- spring
- magnet
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Temperature-Responsive Valves (AREA)
Abstract
A magnetic coupling thermostatic valve is composed of a valve body (1), a separation sleeve (2), a valve cap (3), a valve rod (4), a valve plate (5), a sliding bushing (6), a magnetic conducting ring (7), an external magnet (8), a magnetic conducting ring (9), an internal magnet (10), a fixing seat (11), an adjusting bushing (12), a nut (13), a bulb (14), a magnetic conducting piece (15), a bellows (16), a magnetic conducting piece (17), a setting hand wheel (18), a push rod (19), a push sleeve (20), a protecting spring (21), a return spring (22), an elastic ring (23), an open spring (24), a closed spring (25), a gland (26), a sealing ring (27), a expanding sleeve (28) and a casing pipe (29). The magnetic coupling thermostatic valve meets requirements for national thermostatic standards and European EN215 standards, the problem of medium leakage of a traditional temperature control valves caused by abrasion of an O-ring, water flow quantity can be regulated automatically according to variation of environment temperature, accordingly environment temperature is automatically controlled.
Description
Technical field
The invention belongs to the dim through-current capacity automation field of heat supply, relate to a kind of variation along with surrounding environment, can automatic regulating valve door place water flow size, regulate the magnetic coupling type thermostatic valve of ambient temperature with this.
Background technique
Thermostatic valve is mounted in the valve of radiator front end, generally is made of radiator valve and flow control valve and connection part.Thermometer bulb in the radiator valve is a temperature control component, internal-filling liquid attitude or solid-state temperature sensing medium, according to principle of expanding with heat and contracting with cold, when room temperature raises, media expansion promotes valve rod and reduces aperture, thereby reduces the supply of radiator hot water, process is opposite when room temperature descends, and so just can reach the purpose of control room temperature.The user regulates setting temperature according to demand immediately, the energy waste that can avoid unnecessary high room temperature to cause.
The temperature controller of tradition thermostatic valve is installed on the valve head of rod valve, prop up the top of push rod attachment portion, along with thermometer bulb induced environment temperature variation in the temperature selector produces displacement, control the push rod turnover, regulate flow to reach the automatic control of ambient temperature, and valve push rods outer seal branch is to select O type rubber ring for use, and the trouble of bringing like this is exactly in case wearing and tearing will cause leakage.
Appearance for fear of this situation, thermostatic valve is by changing its flow control valve device, make full use of magnetic coupling principle, design two interactional magnets, make it to be in respectively inside and outside the separate cavities of same separation sleeve, the magnet that is in the outside becomes outer magnet, be in inboard magnet and become inner magnet, the valve rod of magnetic flow adjustable valve is in the separate cavities of separation sleeve, and this structure makes it not have the UNICOM of mechanical structure fully, and interior outer magnet forms closed magnetic circuit by the magnetic field coupling.
Application along with magnetic coupling principle, though solved traditional problem that causes dielectric leakage with the sealing of O type circle, but the valve control mechanism that uses at present in the flow control valve still is the interaction of two pistons, the size of this flow adds the method that guide's balance is controlled with piston, the really automatic control of satisfied temperature, do not reach the NBS and the European EN215 standard-required of thermostatic valve, exceeded the parameter area that hysteresis limit value, pressure reduction influence, the thermostatic valve characteristic curve linearity that obtains simultaneously is relatively poor.
The present invention is when adopting magnetic coupling principle, flow control valve device has been carried out brand-new design, both solved and traditional caused the problem of dielectric leakage, also reached the NBS and the European EN215 standard-required of thermostatic valve through every test with the sealing of O type circle.
Summary of the invention
The purpose of this invention is to provide a kind of being installed on every group of radiator, (6 ℃～28 ℃) regulate the automatic magnetic coupling thermostat valve of temperature within the specific limits, are used for heat supply heating system.The present invention has carried out brand-new design to flow control valve device, can satisfy the needs that the user regulates temperature according to demand automatically, both solved and traditional caused the problem of dielectric leakage, also reached the NBS and the European EN215 standard-required of thermostatic valve through every test with the sealing of O type circle.
The magnetic coupling type thermostatic valve is by valve body (1); separation sleeve (2); valve gap (3); valve rod (4); valve block (5); sliding sleeve (6); first magnetic guiding loop (7); outer magnet (8); first magnetic guiding loop (9); inner magnet (10); fixed base (11); adjustment sleeve (12); nut (13); thermometer bulb (14); first magnetic conducting plate (15); bellows (16); second magnetic conducting plate (17); handwheel (18) is set; push rod (19); pushing sleeve (20); protection spring (21); Returnning spring (22); bullet circle (23); open spring (24); close spring (25); gland (26); seal ring (27); support set (28); sleeve pipe (29) is formed.It is characterized in that: inner magnet (10) one end adhesives first magnetic conducting plates (15), the other end adhesive second magnetic conducting plate (17), the three is combined as inner magnetic sleeve, according to N extremely go up S extremely down or S extremely go up N order orientation extremely down by valve rod (4) be pressed into sliding sleeve (6), bottom's connection valve block (5) is formed magnetic flow adjustable valve bar.Outer magnet (8) one end adhesives first magnetic guiding loops (7), the other end adhesive first magnetic guiding loop (9), three are combined as outer magnetic sleeve, by sleeve pipe (29) with the three according to the axial seal of inner magnetic sleeve magnetic pole opposite direction be one.Sleeve pipe (29) places the outer magnetic sleeve of sealing on separation sleeve (2) external diameter, top and gland (26) inwall is close to, spring (24) is opened in the other end contact, is opened spring (24) active force all the time and upwards promotes outer magnetic sleeve, and the magnetic attraction inner magnetic sleeve upwards causes valve block (5) and is in open mode.To close spring (25) and place sliding sleeve (6) outside, magnetic flow adjustable valve bar is closed spring (25) elastic force effect all the time, pushes valve block (5) to closed condition.Valve gap (3) is held outer ledge and the tight pressing of valve body (1) control end endoporus sealing surface greatly with separation sleeve (2), and valve gap (3) interior edge face is pushed down gland (26) edge simultaneously, drives outer magnet (8) compression and opens spring (24), makes it to become half compressive state.Outer magnetic sleeve is in outside separation sleeve (2) separate cavities, and magnetic flow adjustable valve bar is in separation sleeve (2) separate cavities, and this structure makes it not have the UNICOM of mechanical structure fully, simultaneously magnetic field around the outer magnetic sleeve and the coupling becoming of the magnetic field around inner magnetic sleeve closed magnetic circuit.Handwheel (18), adjustment sleeve (12), thermometer bulb (14) are set to be connected into as a whole; support set (28), bullet circle (23), push rod (19) interior edge face and pushing sleeve (20) interior edge face are housed in the adjustment sleeve compress protection spring (21) two ends simultaneously to initially spacing, the same valve body of fixed base (11) (1) control end spins with nut is coaxial.
Described magnetic coupling type thermostatic valve is characterized in that: the outer magnetic sleeve in the sleeve pipe can be that one or more magnets add two magnetic guiding loop combinations, also can be two or more magnet combination.
Described magnetic coupling type thermostatic valve is characterized in that: homopolarity links to each other when the outer magnet in the sleeve pipe is two, when the outer magnet in the sleeve pipe is that three or three want adjacent at the same level in twos linking to each other when above.
Described magnetic coupling type thermostatic valve is characterized in that: the inner magnetic sleeve in the sleeve pipe can be that one or more magnets add two magnetic conducting plate combinations, also can be two or more magnet combination.
Described magnetic coupling type thermostatic valve is characterized in that: homopolarity links to each other when the inner magnet in the sleeve pipe is two, when the outer magnet in the sleeve pipe is that three or three want adjacent at the same level in twos linking to each other when above.
Described magnetic coupling type thermostatic valve is characterized in that: outer magnetic sleeve equates with the number of magnet in the inner magnetic sleeve.
Described magnetic coupling type thermostatic valve is characterized in that: when internal magnet and external magnet were installed, same horizontal side polarity was opposite.
Described magnetic coupling type thermostatic valve is characterized in that: close spring and be one and be in the normally closed spring of compressive state.
Described magnetic coupling type thermostatic valve is characterized in that: valve was not a closed condition closing under the spring action when flow control valve was connected with the temperature control head.
The scheme of the utility model technical solution problem is: adopt general thermostatic valve temperature controller, experience variation of ambient temperature and thermometer bulb deformation causes braking, the Flow-rate adjustment valve portion utilizes the push rod principle, valve is made inside and outside push rod, inner push-rod one end is a valve sheet, the other end is equipped with magnetic patch and two magnetic conducting plates, with spring one end valve sheet of inner push-rod is pressed in water outlet, play the effect of closing, opening, inner push-rod is contained in interior slip of sleeve pipe that non-magnet material is made, sleeve pipe is installed on the valve head, thereby plays the purpose of sealing.Because of being fixed with a magnet ring and two magnetic sheets, outside sleeve pipe, slide on the outer push rod.Its working method is: temperature selector is installed on the valve head of type of the present invention, connect facing to outer push rod, variation generation displacement along with ambient temperature, promote the displacement of outer push rod, be coupled by magnetic circuit and drive the inner push-rod displacement, thereby the size of adjusting slit between valve sheet and the water outlet is come control flow rate, to reach the purpose of the temperature that controls environment automatically.
The utility model has the advantages that: the magnetic coupling type thermostatic valve selects for use the flow control valve of traditional temperature controller and design voluntarily to combine, has versatility, the temperature controller part can be exchanged with temperature controller both domestic and external, so that the user changes the Flow-rate adjustment valve portion.
Description of drawings
Fig. 1 is the utility model section principle schematic.Valve body (1) is arranged among the figure; separation sleeve (2); valve gap (3); valve rod (4); valve block (5); sliding sleeve (6); first magnetic guiding loop (7); outer magnet (8); first magnetic guiding loop (9); inner magnet (10); fixed base (11); adjustment sleeve (12); nut (13); thermometer bulb (14); first magnetic conducting plate (15); bellows (16); second magnetic conducting plate (17); handwheel (18) is set; push rod (19); pushing sleeve (20); protection spring (21); Returnning spring (22); bullet circle (23); open spring (24); close spring (25); gland (26); seal ring (27); support set (28); sleeve pipe (29).
Embodiment
The utility model selects for use remanent magnetism greater than 11KGs, coercivity greater than the permanent-magnet material material of 10.5Koe as inner magnet (10), diameter is 3～20mm, thickness is 2～20mm mm, select for use relative permeability greater than 3000 permeability magnetic material as first magnetic conducting plate (15) and second magnetic conducting plate (17), inner magnet (10) one end adhesives first magnetic conducting plates (15), the other end adhesive second magnetic conducting plate (17), the three is combined as inner magnetic sleeve, according to N extremely go up S extremely down or S extremely go up the order orientation of N under extremely and be pressed into sliding sleeve (6) by valve rod (4), make valve rod (4) compress inner magnetic sleeve to sliding sleeve (6) closed port place, valve rod back spinning sliding sleeve mouth end margin to the valve rod that is pressed into place is entered in the groove, make it to be connected as a single entity.Quantitatively clamp-on an amount of sealer in the sliding sleeve before being pressed into valve rod, valve rod (4) is fixed with sliding sleeve (6) inwall simultaneously, is not easy to come off from sliding sleeve (6) inwall.Axially be pressed into valve block to self-locking position at the valve rod the other end then, form magnetic flow adjustable valve bar.
The present invention select for use remanent magnetism greater than 11KGs, coercivity greater than the permanent-magnet material material of 10.5Koe as outer magnet (8), select for use relative permeability greater than 3000 permeability magnetic material material as first magnetic guiding loop (7) and the one the first magnetic guiding loops (9), outer magnet (8) one end adhesives first magnetic guiding loops (7), the other end adhesive first magnetic guiding loop (9), three are combined as outer magnetic sleeve, by sleeve pipe (29) with the three according to the axial seal of inner magnetic sleeve magnetic pole opposite direction be one, compression sleeve (29) edge is to locking state.Sleeve pipe places the outer magnetic sleeve of sealing on separation sleeve (2) external diameter, separation sleeve selects for use non-magnetic conductive metal and metal alloy compositions to make usually, outer magnetic sleeve top and gland (26) inwall is close to, spring (24) is opened in the other end contact, all the time opened spring (24) active force and promote outer magnetic sleeve to gland inwall direction, the magnetic attraction inner magnetic sleeve causes valve block and is in open mode.
Be inserted in magnetic flow adjustable valve bar in the valve body control end in order, close spring (25), seal ring (27), separation sleeve (2), open spring (24), outer magnetic sleeve, gland (26), valve gap (3), depress valve gap (26) and aim at valve body (1) control end screw thread and spin and be integral.
Push rod (19) interior edge face and pushing sleeve (20) interior edge face axial compression protection simultaneously spring (21) two ends are to initially spacing, and the three is connected to become safety push-rod.The effect of protection spring (21) is can not resist stubbornly by exertin when push rod (19) promotes valve to closed condition, can shrink protection valve safety under the effect of power automatically.The non-threaded end of fixed base (11) be pressed into nut (13), threaded end pack into the big end of Returnning spring (22), safety push-rod in order, then with the thermometer bulb (14) of packing in order in the adjustment sleeve (12), support set (28), bullet circle (23), bellows (16) endoporus of thermometer bulb (14) is aimed at the safety push-rod small end and is axially inserted and screw adjustment sleeve (12), fixed base (11) screw thread one to two circle, is combined as the temperature control head main body.
The temperature control head main body is inserted the thermostatic chamber of assigned temperature, on debugger, adjust the screw thread penetraction depth of adjustment sleeve (12) and fixed base (11) behind the placement certain hour on request, needle pivot on the corresponding graduation line secured in alignment seat on the handwheel (18) will be set then to being pressed into and pinning this position, be combined as temperature controller.
At last Flux Valve Control end and temperature controller are integrated with nut (13), consist of the magnetic coupling type thermostatic valve.
During use; rotary setting handwheel (18) moves down adjustment sleeve (12); drive thermometer bulb (14) also moves down compressing push rod (19) and moves down; push rod (19) drives protection spring (21); pushing sleeve (20); gland (26); sleeve pipe (29); first magnetic guiding loop (9); outer magnet (8); first magnetic guiding loop (7) moves down together; be subjected to magnetic force inner magnet (10); second magnetic conducting plate (17); first magnetic conducting plate (15); sliding sleeve (6); valve rod (4); valve block (5) moves down simultaneously; the water outlet of valve body is blocked; valve is in closed condition, and current stop to flow.Rotary setting handwheel (18) moves up adjustment sleeve (12); push rod (19) is subjected to downward thrust and reduces; the elastic force that outer magnet (8) is opened spring (24) promotes; sleeve pipe (29); first magnetic guiding loop (9); outer magnet (8); first magnetic guiding loop (7); gland (26); pushing sleeve (20); protection spring (21); push rod (19) moves upward together; be subjected to magnetic force inner magnet (10); second magnetic conducting plate (17); first magnetic conducting plate (15); sliding sleeve (6); valve rod (4); valve block (5) moves up simultaneously; the water outlet of valve body (1) is opened; valve is in open mode, and current begin to flow.Open spring (24) and promote displacement that gland (26) makes progress in 2.5～3mm scope, open spring (24) and promote the displacement size that gland (26) makes progress and equal valve by the displacement size that is closed to full-gear.
When ambient temperature during greater than the expansion temperature of thermometer bulb (14), the expanding liquid of thermometer bulb (14) begins to expand, bellows (16) in the compressing thermometer bulb moves downward and makes push rod (19) move down, push rod (19) drives protection spring (21), pushing sleeve (20), gland (26), sleeve pipe (29), first magnetic guiding loop (7), outer magnet (8), first magnetic guiding loop (9) moves down together, be subjected to magnetic force inner magnet (10), first magnetic conducting plate (15), second magnetic conducting plate (17), sliding sleeve (6), valve rod (4), valve block (5) moves down simultaneously, make the water outlet of valve body (1) reduce, current reduce, and temperature reduces; When ambient temperature is lower than the shrinkage temperature of thermometer bulb (14); the contraction liquid of thermometer bulb (14) begins to shrink; bellows (16) in the thermometer bulb moves upward; opening under spring (24) the elastic force effect; push rod (19); protection spring (21); pushing sleeve (20); gland (26); sleeve pipe (29); first magnetic guiding loop (9); outer magnet (8); first magnetic guiding loop (7) moves up together; be subjected to magnetic force inner magnet (10); second magnetic conducting plate (17); first magnetic conducting plate (15); sliding sleeve (6); valve rod (4); valve block (5) moves up simultaneously; make the water outlet of valve body (1) become big; current increase; temperature raises, and really reaches the purpose of A.T.C thus.
Owing to used and closed spring and make the magnetic coupling force direction of inner magnet, outer magnet reach very big correction, control is more accurate automatically to make temperature.
Claims (8)
1. a magnetic coupling type thermostatic valve is by valve body; separation sleeve; valve gap; valve rod; valve block; sliding sleeve; first magnetic guiding loop; outer magnet; second magnetic guiding loop; inner magnet; fixed base; adjustment sleeve; nut; thermometer bulb (14); first magnetic conducting plate; bellows; second magnetic conducting plate; handwheel is set; push rod; pushing sleeve; the protection spring; Returnning spring; the bullet circle; open spring; close spring; gland; seal ring; support set; sleeve pipe is formed; it is characterized in that: inner magnet (10) one end adhesives first magnetic conducting plates (15); the other end adhesive second magnetic conducting plate (17); the three is combined as inner magnetic sleeve; according to N extremely go up S extremely down or S extremely go up the order orientation of N under extremely and be pressed into sliding sleeve (6) by valve rod (4); the following valve block (5) that connects is formed magnetic flow adjustable valve bar; outer magnet (8) one end adhesives first magnetic guiding loops (7); the other end adhesive second magnetic guiding loop (9); the three is combined as outer magnetic sleeve; by sleeve pipe (29) with the three according to the axial seal of inner magnetic sleeve magnetic pole opposite direction be one; sleeve pipe (29) places the outer magnetic sleeve of sealing on separation sleeve (2) external diameter; top and gland (26) inwall is close to; spring (24) is opened in the other end contact; all the time opened spring (24) active force and upwards promoted outer magnetic sleeve; the magnetic attraction inner magnetic sleeve upwards causes valve block (5) and is in open mode; to close spring (25) and place sliding sleeve (6) outside; magnetic flow adjustable valve bar is closed spring (25) elastic force effect all the time; push valve block (5) to closed condition; valve gap (3) is held outer ledge and the tight pressing of valve body (1) control end endoporus sealing surface greatly with separation sleeve (2); valve gap (3) interior edge face is pushed down gland (26) edge simultaneously; drive outer magnet (8) compression and open spring (24); make it to become half compressive state; outer magnetic sleeve is in outside separation sleeve (2) separate cavities; magnetic flow adjustable valve bar is in separation sleeve (2) separate cavities; magnetic field around the outer magnetic sleeve and the magnetic field around the inner magnetic sleeve are coupled and become closed magnetic circuit simultaneously; handwheel (18) is set; adjustment sleeve (12); thermometer bulb (14) connects into as a whole; support set (28) is housed in the adjustment sleeve; bullet circle (23); push rod (19) interior edge face and pushing sleeve (20) interior edge face compress protection spring (21) two ends simultaneously to initially spacing, and the same valve body of fixed base (11) (1) control end spins with nut is coaxial.
2. according to the described magnetic coupling type thermostatic valve of claim 1, it is characterized in that: the outer magnetic sleeve in the sleeve pipe can be that one or more magnets add two magnetic guiding loop combinations, also can be two or more magnet combination.
3. according to the described magnetic coupling type thermostatic valve of claim 2, it is characterized in that: homopolarity links to each other when the outer magnet in the sleeve pipe is two, when the outer magnet in the sleeve pipe is that three or three want adjacent at the same level in twos linking to each other when above.
4. according to the described magnetic coupling type thermostatic valve of claim 1, it is characterized in that: the inner magnetic sleeve in the sleeve pipe can be that one or more magnets add two magnetic conducting plate combinations, also can be two or more magnet combination.
5. according to the described magnetic coupling type thermostatic valve of claim 2, it is characterized in that: homopolarity links to each other when the inner magnet in the sleeve pipe is two, when the outer magnet in the sleeve pipe is that three or three want adjacent at the same level in twos linking to each other when above.
6. according to the described magnetic coupling type thermostatic valve of claim 1, it is characterized in that: outer magnetic sleeve equates with the number of magnet in the inner magnetic sleeve.
7. according to the described magnetic coupling type thermostatic valve of claim 1, it is characterized in that: when internal magnet and external magnet were installed, same horizontal side polarity was opposite.
8. according to the described magnetic coupling type thermostatic valve of claim 1, it is characterized in that: close spring and be one and be in the normally closed spring of compressive state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202778731U CN201795064U (en) | 2009-11-30 | 2009-11-30 | Magnetic coupling thermostatic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202778731U CN201795064U (en) | 2009-11-30 | 2009-11-30 | Magnetic coupling thermostatic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201795064U true CN201795064U (en) | 2011-04-13 |
Family
ID=43849972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202778731U Expired - Fee Related CN201795064U (en) | 2009-11-30 | 2009-11-30 | Magnetic coupling thermostatic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201795064U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805406A (en) * | 2016-05-28 | 2016-07-27 | 许昌东方热力有限公司 | Concentrated heating energy-saving temperature control valve |
| CN108548002A (en) * | 2018-07-10 | 2018-09-18 | 上饶市欧德环保有限公司 | A kind of temperature digital display thermostatic control valve |
-
2009
- 2009-11-30 CN CN2009202778731U patent/CN201795064U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805406A (en) * | 2016-05-28 | 2016-07-27 | 许昌东方热力有限公司 | Concentrated heating energy-saving temperature control valve |
| CN108548002A (en) * | 2018-07-10 | 2018-09-18 | 上饶市欧德环保有限公司 | A kind of temperature digital display thermostatic control valve |
| CN108548002B (en) * | 2018-07-10 | 2019-05-17 | 江西艾芬达暖通科技股份有限公司 | A kind of temperature digital display thermostatic control valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201902618U (en) | Novel self-operated pressure adjusting valve | |
| CN201795064U (en) | Magnetic coupling thermostatic valve | |
| CN105909856B (en) | Magnetic refrigerator cold-storage bed special combination valve arrangement | |
| CN202901303U (en) | Superhigh temperature magnetic valve | |
| CN205938039U (en) | Steady flow valve | |
| CN201437860U (en) | Electric control valve | |
| CN101929575A (en) | Dynamic differential pressure balancing valve | |
| CN203202295U (en) | Temperature control valve | |
| CN200999870Y (en) | Temperature control auto-switch valve | |
| CN101782149B (en) | Control valve and valve with same | |
| CN100565046C (en) | The expansion valve of embedded with temperature-sensing control element | |
| CN201973331U (en) | Magnet structure of magnetic coupling type thermostatic valve | |
| CN202927131U (en) | Automatic constant temperature three-way steam heat valve | |
| CN202659910U (en) | Three-way constant-temperature temperature control valve | |
| CN209115734U (en) | Magnetic one-way valve opened under pressure and gas water heater thereof | |
| CN202927174U (en) | Superconducting magnet pressure discharge valve and pressure discharging system | |
| CN202708202U (en) | Pressure difference temperature control valve | |
| CN201314410Y (en) | Self-operated temperature control valve | |
| CN204692715U (en) | A kind of gas electromagnetic valve double spool assembly | |
| CN201202870Y (en) | Flow control constant temperature valve body for multiple drive devices | |
| CN203009860U (en) | Full-automatic temperature compensating valve | |
| CN203131143U (en) | Pressure difference adjusting valve | |
| CN213299617U (en) | Steam pressure stabilizing and stabilizing device for steam injection pipeline | |
| CN202629083U (en) | Temperature control valve | |
| CN100554830C (en) | The critical-cross carbon dioxide refrigeration system automatic regulation type restriction sleeve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20121130 |