CN114396480A - Ultra-low torque butterfly valve - Google Patents
Ultra-low torque butterfly valve Download PDFInfo
- Publication number
- CN114396480A CN114396480A CN202210119410.2A CN202210119410A CN114396480A CN 114396480 A CN114396480 A CN 114396480A CN 202210119410 A CN202210119410 A CN 202210119410A CN 114396480 A CN114396480 A CN 114396480A
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- valve
- valve body
- bolted
- flange
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- Pending
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- 238000007789 sealing Methods 0.000 claims abstract description 38
- 230000000694 effects Effects 0.000 abstract description 23
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- 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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/221—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
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- 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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/222—Shaping of the valve member
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- 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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
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- 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
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- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses an ultra-low torque butterfly valve, which belongs to the technical field of butterfly valves and comprises a valve body and a valve rod, wherein the valve rod is positioned in an inner cavity of the valve body, the bottom of the valve body is bolted with a lower flange, the top of the valve rod penetrates through the valve body and is bolted with a fixed seat, the top of the valve body is bolted with an upper flange, the valve rod and the valve body can be fixed by matching the upper flange and the lower flange, the sealing effect is enhanced, the fixing effect of the valve body is enhanced by matching the fixed flange, a user can conveniently carry out sealing connection on the valve body, the fixing protection effect on the valve body is improved, the flow of the butterfly valve can be circulated in a channel-dividing way by matching a first control valve and a second control valve, so that the friction resistance of the butterfly valve per se is reduced, the loss of the torque butterfly valve is reduced, the torque of the butterfly valve is reduced, and the torque achieves the energy-saving effect, meanwhile, the service life of the torque butterfly valve is prolonged.
Description
Technical Field
The invention relates to the technical field of butterfly valves, in particular to an ultra-low torque butterfly valve.
Background
A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for on-off control of low-pressure pipeline media, namely a valve with a closing part (valve clack or butterfly plate) as a disc and rotating around a valve shaft to achieve opening and closing.
The existing butterfly valve does not have the branch flow when gas circulates, and only direct circulation is realized, so that the friction resistance of the butterfly valve is increased easily due to the circulation mode, an operation torque note is caused, the energy-saving effect cannot be achieved, the loss of the butterfly valve is improved, the service life of the butterfly valve is shortened, and the use cost of a user is improved.
Disclosure of Invention
The invention aims to provide an ultra-low torque butterfly valve, which has the advantages of flow direction division, reduced friction resistance, long service life, small operation torque and energy saving, and solves the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: ultralow moment of torsion butterfly valve, including valve body and valve rod, the valve rod is located the inner chamber of valve body, the bottom bolt of valve body has lower flange, the top of valve rod runs through the valve body and the bolt has the fixing base, the top bolt of valve body has the upper flange, the table wall fixedly connected with valve plate of valve rod, the lateral wall pressfitting of valve plate has the disk seat, the disk seat is located the inboard of valve body, the left side bolt of valve body has flange, flange's lateral wall is provided with first control valve, one side that flange was kept away from to first control valve is provided with the second control valve, the lateral wall of second control valve is provided with communicating pipe, the other end of communicating pipe and the lateral wall intercommunication of valve body.
Preferably, a first sealing ring is arranged on the surface wall of the valve seat and located on the inner side of the valve body, grooves are formed in the positions, corresponding to the valve seat, of the valve seat, springs are fixedly connected to inner cavities of the grooves, and first locking bolts matched with the valve body are arranged on the surface wall of the valve seat.
Preferably, the surface wall of valve plate is provided with the clamp plate, the surface wall of clamp plate is provided with the second locking bolt that uses with the valve plate cooperation.
Preferably, the fixing flange and the valve body are provided with first threaded holes at corresponding positions, and an inner cavity of each first threaded hole is in threaded connection with a first fastening bolt.
Preferably, a second sealing ring is arranged on the inner side of the fixing flange, and the other side of the second sealing ring is attached to the outer side of the valve body.
Preferably, a sealing plug is arranged at the bottom of the inner cavity of the valve body, and the bottom of the valve rod is positioned at the top of the sealing plug.
Preferably, the two sides of the upper flange are bolted with second fastening bolts at symmetrical distances, and the positions of the fixed seat and the upper flange corresponding to each other are bolted with third fastening bolts.
Preferably, the surface wall of the valve rod is embedded with a positioning pin, and the outer side of the positioning pin is located on the inner side of the valve plate.
Preferably, a third sealing ring is bonded to the surface wall of the lower flange, and the third sealing ring is located on the inner side of the bottom of the valve body.
Preferably, the right side of the lower flange is bolted with a third locking bolt, and the other end of the third locking bolt is bolted to the surface wall of the valve body.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides an ultralow-torque butterfly valve, which can be used for fixing a valve rod and a valve body in a progressive manner by matching an upper flange and a lower flange, enhancing the sealing effect, enhancing the fixing effect of the valve body by matching a fixing flange, facilitating the sealing connection of the valve body by a user, improving the fixing protection effect of the valve body, and realizing the shunting circulation of the flow of the butterfly valve by matching a first control valve and a second control valve, thereby reducing the friction resistance of the butterfly valve, reducing the loss of the torque butterfly valve, reducing the torque of the torque butterfly valve, achieving the energy-saving effect of the torque butterfly valve, and prolonging the service life of the torque butterfly valve.
2. The invention provides an ultra-low torque butterfly valve, which can seal the joint of a valve seat and a valve body under the action of a first sealing ring, can generate the buffer action between the valve body and the valve seat by the aid of the elasticity provided by a spring, can connect the valve seat and the valve body by the aid of the matching of a first locking bolt, can prevent the valve seat from being separated from the valve body, can press a filler, can fix a pressing plate by the aid of the matching of a second locking bolt, can prevent the pressing plate from shaking, can fixedly connect a fixing flange and the valve body by the aid of the matching of a first threaded hole and a first fastening bolt, and enhances the fixing effect of the fixing flange.
3. The invention provides an ultralow-torque butterfly valve, which can seal a fixed flange and a valve body by the action of a second sealing ring, prevent the leakage of the joint of the fixed flange and the valve body, limit the bottom of a valve rod by the action of a sealing plug, block the bottom of the valve body, connect the valve rod, the valve body and a fixed seat by the cooperation of a second fastening bolt and a third fastening bolt, enhance the firmness among the valve rod, the valve body and the fixed seat, position the valve rod and the valve plate by the action of a positioning pin, improve the fixing effect of the valve plate, enhance the sealing effect of the joint of a lower flange by the cooperation of a third sealing ring, fix the lower flange and the valve body by the arrangement of a third locking bolt, and enhance the stability of the lower flange.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top plan view of the first control valve closed and second control valve open configurations of the present invention;
FIG. 3 is a top plan view of the first control valve opening and second control valve closing arrangement of the present invention;
fig. 4 is an enlarged view of the invention at a in fig. 3.
Reference numbers in the figures: 1. a valve body; 2. a valve stem; 3. a lower flange; 4. a fixed seat; 5. an upper flange; 6. a valve plate; 7. a valve seat; 8. a fixed flange; 9. a first control valve; 10. a second control valve; 11. a communicating pipe; 12. a first seal ring; 13. a groove; 14. a spring; 15. a first locking bolt; 16. a second locking bolt; 17. a first threaded hole; 18. a first fastening bolt; 19. a second seal ring; 20. a sealing plug; 21. a second fastening bolt; 22. a third fastening bolt; 23. positioning pins; 24. a third seal ring; 25. a third locking bolt; 26. and (7) pressing a plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an ultra-low torque butterfly valve as shown in figures 1-4, which comprises a valve body 1 and a valve rod 2, wherein the valve rod 2 is positioned in an inner cavity of the valve body 1, the bottom of the valve body 1 is bolted with a lower flange 3, the top of the valve rod 2 penetrates through the valve body 1 and is bolted with a fixed seat 4, the top of the valve body 1 is bolted with an upper flange 5, the surface wall of the valve rod 2 is fixedly connected with a valve plate 6, the side wall of the valve plate 6 is pressed with a valve seat 7, the valve seat 7 is positioned at the inner side of the valve body 1, the left side of the valve body 1 is bolted with a fixed flange 8, the side wall of the fixed flange 8 is provided with a first control valve 9, one side of the first control valve 9, which is far away from the fixed flange 8, is provided with a second control valve 10, the side wall of the second control valve 10 is provided with a communicating pipe 11, the other end of the communicating pipe 11 is communicated with the side wall of the valve body 1, the valve rod 2 and the valve body 1 can be fixed in a progressive manner by the cooperation of the upper flange 5 and the lower flange 3, the sealed effect has been strengthened simultaneously, the fixed effect of valve body 1 has been strengthened through the cooperation that sets up mounting flange 8, convenient to use person carries out sealing connection to valve body 1, the fixed guard action to valve body 1 has been improved, through the cooperation that sets up first control valve 9 and second control valve 10, can be with the branch road circulation of carrying out of the flow of butterfly valve, thereby reduce the frictional resistance of butterfly valve self, the loss of moment of torsion butterfly valve has been reduced, thereby make the moment of torsion butterfly valve's moment of torsion reduce, make the moment of torsion butterfly valve reach energy-conserving effect, the life of moment of torsion butterfly valve has been prolonged simultaneously.
The table wall of disk seat 7 is provided with first sealing washer 12, first sealing washer 12 is located the inboard of valve body 1, recess 13 has all been seted up to the corresponding position of disk seat 7, the inner chamber fixedly connected with spring 14 of recess 13, the table wall of disk seat 7 is provided with the first locking bolt 15 that uses with the cooperation of valve body 1, can seal up disk seat 7 and the junction of valve body 1 through the effect of first sealing washer 12, simultaneously through the elasticity that provides of spring 14, thereby make the effect that produces the buffering between valve body 1 and the disk seat 7, through the cooperation that sets up first locking bolt 15, can be connected disk seat 7 and valve body 1, make disk seat 7 be difficult for separating with valve body 1.
The table wall of valve plate 6 is provided with clamp plate 26, and the table wall of clamp plate 26 is provided with the second locking bolt 16 that uses with valve plate 6 cooperation, and clamp plate 26's effect is used for compressing the filler, through the cooperation that sets up second locking bolt 16, can fix clamp plate 26, prevents that clamp plate 26 from taking place to rock.
The inboard second sealing washer 19 that is provided with of mounting flange 8, the opposite side of second sealing washer 19 and the laminating of the outside of valve body 1 can provide sealedly between mounting flange 8 and the valve body 1 through the effect that sets up second sealing washer 19, prevent that mounting flange 8 and valve body 1 junction from taking place to leak.
The bottom of the inner cavity of the valve body 1 is provided with a sealing plug 20, the bottom of the valve rod 2 is positioned at the top of the sealing plug 20, and the bottom of the valve rod 2 can be limited by the sealing plug 20, and the bottom of the valve body 1 is blocked.
Go up flange 5's both sides symmetrical distance and all having bolted the second fastening bolt 21, the third fastening bolt 22 is bolted to fixing base 4 and the corresponding position of last flange 5, and through the cooperation that sets up second fastening bolt 21 and third fastening bolt 22, can make and connect between valve rod 2, valve body 1 and the fixing base 4, has strengthened fastness between valve rod 2, valve body 1 and the fixing base 4.
The locating pin 23 is embedded in the surface wall of the valve rod 2, the outer side of the locating pin 23 is located on the inner side of the valve plate 6, the valve rod 2 and the valve plate 6 can be located through the effect of the locating pin 23, and the fixing effect of the valve plate 6 is improved.
The surface wall of lower flange 3 bonds and has third sealing washer 24, and third sealing washer 24 is located the inboard of valve body 1 bottom, through the cooperation that sets up third sealing washer 24, has strengthened the sealed effect of lower flange 3 junction.
The right side of the lower flange 3 is bolted with a third locking bolt 25, the other end of the third locking bolt 25 is bolted to the surface wall of the valve body 1, the lower flange 3 and the valve body 1 can be fixed by arranging the third locking bolt 25, and the stability of the lower flange 3 is enhanced.
When the gas conveying valve is used specifically, firstly, a user connects the valve rod 2 with the valve body 1 through the matching of the upper flange 5 and the lower flange 3, then when the user conveys gas to the torque butterfly valve, the user closes the first control valve 9 and opens the second control valve 10, so that the conveyed gas is directly conveyed through the valve body 1, the conveyed gas cannot run through the second control valve 10, then when the user opens the first control valve 9 and closes the second control valve 10, the conveyed gas can pass through the control valve and then passes through the second control valve 10, and then the gas is conveyed into the valve body 1 again through the communicating pipe 11, so that one part of the poured gas directly flows through the valve body 1, and the other part of the poured gas flows through the first control valve 9, the second control valve 10 and the communicating pipe 11, so that the torque butterfly valve is shunted and guided to circulate, and the friction resistance of the torque butterfly valve is reduced, Prolonged service life, reduced operating torque and energy saving.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. Ultralow moment of torsion butterfly valve, including valve body (1) and valve rod (2), its characterized in that: the valve rod (2) is positioned in the inner cavity of the valve body (1), the bottom of the valve body (1) is bolted with a lower flange (3), the top of the valve rod (2) penetrates through the valve body (1) and is bolted with a fixed seat (4), an upper flange (5) is bolted at the top of the valve body (1), a valve plate (6) is fixedly connected with the surface wall of the valve rod (2), the side wall of the valve plate (6) is pressed with a valve seat (7), the valve seat (7) is positioned at the inner side of the valve body (1), a fixed flange (8) is bolted on the left side of the valve body (1), a first control valve (9) is arranged on the side wall of the fixed flange (8), a second control valve (10) is arranged on one side of the first control valve (9) far away from the fixed flange (8), the side wall of the second control valve (10) is provided with a communicating pipe (11), and the other end of the communicating pipe (11) is communicated with the side wall of the valve body (1).
2. The ultra-low torque butterfly valve of claim 1, wherein: the valve seat is characterized in that a first sealing ring (12) is arranged on the surface wall of the valve seat (7), the first sealing ring (12) is located on the inner side of the valve body (1), grooves (13) are formed in the corresponding positions of the valve seat (7), springs (14) are fixedly connected to the inner cavities of the grooves (13), and first locking bolts (15) matched with the valve body (1) are arranged on the surface wall of the valve seat (7).
3. The ultra-low torque butterfly valve of claim 1, wherein: the surface wall of valve plate (6) is provided with clamp plate (26), the surface wall of clamp plate (26) is provided with second locking bolt (16) with valve plate (6) cooperation use.
4. The ultra-low torque butterfly valve of claim 1, wherein: first screw holes (17) are formed in the corresponding positions of the fixing flange (8) and the valve body (1), and an inner cavity of each first screw hole (17) is in threaded connection with a first fastening bolt (18).
5. The ultra-low torque butterfly valve of claim 1, wherein: and a second sealing ring (19) is arranged on the inner side of the fixed flange (8), and the other side of the second sealing ring (19) is attached to the outer side of the valve body (1).
6. The ultra-low torque butterfly valve of claim 1, wherein: the bottom of the inner cavity of the valve body (1) is provided with a sealing plug (20), and the bottom of the valve rod (2) is positioned at the top of the sealing plug (20).
7. The ultra-low torque butterfly valve of claim 1, wherein: and second fastening bolts (21) are bolted at symmetrical distances of two sides of the upper flange (5), and third fastening bolts (22) are bolted at positions of the fixed seat (4) corresponding to the upper flange (5).
8. The ultra-low torque butterfly valve of claim 1, wherein: the surface wall of the valve rod (2) is embedded with a positioning pin (23), and the outer side of the positioning pin (23) is located on the inner side of the valve plate (6).
9. The ultra-low torque butterfly valve of claim 1, wherein: and a third sealing ring (24) is bonded on the surface wall of the lower flange (3), and the third sealing ring (24) is positioned on the inner side of the bottom of the valve body (1).
10. The ultra-low torque butterfly valve of claim 1, wherein: the right side of the lower flange (3) is bolted with a third locking bolt (25), and the other end of the third locking bolt (25) is bolted to the surface wall of the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210119410.2A CN114396480A (en) | 2022-02-08 | 2022-02-08 | Ultra-low torque butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210119410.2A CN114396480A (en) | 2022-02-08 | 2022-02-08 | Ultra-low torque butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114396480A true CN114396480A (en) | 2022-04-26 |
Family
ID=81233102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210119410.2A Pending CN114396480A (en) | 2022-02-08 | 2022-02-08 | Ultra-low torque butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114396480A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101578181B1 (en) * | 2015-10-14 | 2015-12-17 | 주식회사현대밸브 | Butterfly valves inclined to improve stability of the pipe |
| CN110230704A (en) * | 2019-06-20 | 2019-09-13 | 武汉百耐流体控制设备有限公司 | A kind of damping butterfly valve |
| CN210423750U (en) * | 2019-08-20 | 2020-04-28 | 般德阀门科技有限公司 | Butterfly valve that leakproofness is strong |
| CN210600358U (en) * | 2019-08-13 | 2020-05-22 | 天津卡尔斯阀门股份有限公司 | Bidirectional hard seal butterfly valve structure |
| CN211145378U (en) * | 2019-12-12 | 2020-07-31 | 南通市电站阀门有限公司 | Self-sealing structure butterfly valve |
-
2022
- 2022-02-08 CN CN202210119410.2A patent/CN114396480A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101578181B1 (en) * | 2015-10-14 | 2015-12-17 | 주식회사현대밸브 | Butterfly valves inclined to improve stability of the pipe |
| CN110230704A (en) * | 2019-06-20 | 2019-09-13 | 武汉百耐流体控制设备有限公司 | A kind of damping butterfly valve |
| CN210600358U (en) * | 2019-08-13 | 2020-05-22 | 天津卡尔斯阀门股份有限公司 | Bidirectional hard seal butterfly valve structure |
| CN210423750U (en) * | 2019-08-20 | 2020-04-28 | 般德阀门科技有限公司 | Butterfly valve that leakproofness is strong |
| CN211145378U (en) * | 2019-12-12 | 2020-07-31 | 南通市电站阀门有限公司 | Self-sealing structure butterfly valve |
Non-Patent Citations (1)
| Title |
|---|
| 陆培文: "《实用阀门设计手册 第4版》", 31 May 2020, 机械工业出版社, pages: 485 - 489 * |
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