CN113996107A - Butterfly valve with filtering effect - Google Patents
Butterfly valve with filtering effect Download PDFInfo
- Publication number
- CN113996107A CN113996107A CN202111270857.1A CN202111270857A CN113996107A CN 113996107 A CN113996107 A CN 113996107A CN 202111270857 A CN202111270857 A CN 202111270857A CN 113996107 A CN113996107 A CN 113996107A
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- CN
- China
- Prior art keywords
- butterfly valve
- plate
- medium
- casing
- filtering effect
- 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
- 230000000694 effects Effects 0.000 title claims abstract description 22
- 238000001914 filtration Methods 0.000 title claims abstract description 16
- 239000008187 granular material Substances 0.000 claims abstract description 16
- 239000002245 particle Substances 0.000 claims description 13
- 239000004744 fabric Substances 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
-
- 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
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly valves
-
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
- Lift Valve (AREA)
Abstract
The invention provides a butterfly valve with filtering effect, which has excellent filtering effect, can be cleaned after a long time without damaging the butterfly valve and is beneficial to the butterfly valve, comprising a butterfly valve body, still include one end can dismantle set up in the butterfly valve body is intake the end other end can with the connection casing of external pipeline connection, set up in connect the casing up end get put mouthful, can dismantle set up in connect lie in on the casing get put intraoral portion of putting, set up in get put down the terminal surface with connect the casing intercommunication be arranged in opening the butterfly valve after separate the shelves crown plate that separates of shelves medium granule, set up in separate the crown plate be close to that terminal surface of butterfly valve body be used for a plurality of clearing hole that the medium passes through, set up in separate under the crown plate terminal surface be used for receiving at the granule separate the shelves crown plate and separate the collection board that bears and collect the granule behind the shelves.
Description
Technical Field
The invention relates to the technical field of butterfly valves, in particular to a butterfly valve with a filtering effect.
Background
A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disk.
The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The pipe mainly plays a role in cutting off and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved.
Although present butterfly valve has filter equipment at its end of intaking, filterable effect is relatively poor, and the back can't be clear away in a long-term time, also can lead to damaging the butterfly valve, is unfavorable for the butterfly valve to use.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings of the prior art and provide a butterfly valve with a filtering effect, which has a good filtering effect, can be cleaned after a long time, cannot damage the butterfly valve and is beneficial to the use of the butterfly valve.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a butterfly valve with filter effect, includes the butterfly valve body, still include one end can dismantle set up in the butterfly valve body intake the end other end can with the connection casing of external pipeline connection, set up in connect getting of casing up end put the mouth, can dismantle set up in connect the casing and lie in get intraoral get put the portion, set up in get put under the terminal surface with connect the casing intercommunication be arranged in opening the butterfly valve after separate the shelves crown plate that the granule passes through, set up in separate that the shelves crown plate is close to that terminal surface of butterfly valve body and be used for a plurality of clearing hole that the medium passes through, set up in separate that the terminal surface is used for receiving at the granule under the shelves crown plate separate the shelves crown plate and bear and collect the bearing collecting plate of granule after separating the shelves.
The further improvement is that: the inner wall of the connecting shell is provided with a stable shunting device which can stably shunt the medium until the medium stably flows when the medium of the butterfly valve is opened and the medium instantly flows into the connecting shell.
The further improvement is that: steady diverging device is including following it slides and is opening the butterfly valve medium and flow in to connect casing length direction carry out the flow distribution plate of reposition of redundant personnel to the medium when connecting the casing, set up in connect shells inner wall to be located the flow distribution plate with separate the fixed ring seat between the shelves crown plate, set up in the flow distribution plate with flow in the twinkling of an eye opening the butterfly valve medium between the fixed ring seat make the flow distribution plate smoothly shunt the medium until the steady piece that the medium flows steadily when connecting the casing.
The further improvement is that: the stationary member includes a plurality of springs connected between the diverter plate and the stationary ring mount.
The further improvement is that: and a flexible anti-corrosion cover for preventing the medium from corroding the spring is arranged between the flow distribution plate and the fixed ring seat.
The further improvement is that: the transparent collecting plate is characterized in that the taking and placing part is a transparent taking and placing part, the transparent taking and placing part is provided with a light source part, the light source part can emit light beams to the transparent taking and placing part to detect whether particles are fully accumulated, the light source part is used for bearing the collecting plate, the upper end face of the transparent taking and placing part is provided with a display cloth used for displaying whether a light spot exists, and the height of the end face of the light beam emitted by the light source part is lower than that of the upper end face of the bearing collecting plate.
The further improvement is that: the light source spare including can dismantle set up in bear waterproof crown plate on the collecting plate, set up in the waterproof crown plate can to transparent portion of putting sends the light beam and is used for detecting whether the granule piles up full bear the spotlight of collecting plate, set up in lie in on the waterproof crown plate the lower convex lens of spotlight top, set up in be used for controlling in the waterproof crown plate the spotlight periodically sends the controller of light beam, set up in for the power supply unit of light source spare power supply in the waterproof crown plate.
The further improvement is that: and an upper convex lens used for focusing the light beams emitted by the light source part is arranged in the transparent taking and placing part.
The further improvement is that: the taking and placing part is in threaded connection with the inner wall of the taking and placing port.
The further improvement is that: the bearing and collecting plate is provided with a plurality of draining holes for draining particles on the bearing and collecting plate when the butterfly valve is closed.
The further improvement is that: the inner wall of the connecting shell is provided with an abutting block for abutting against the bearing and collecting plate, and a draining area for improving the draining efficiency of the draining hole is formed between the bearing and collecting plate and the inner wall of the connecting shell.
After the technical scheme is adopted, the invention has the beneficial effects that: the medium gets into and connects the casing after opening the butterfly valve, separates the shelves crown plate and separates granule in the shelves medium, and a plurality of clearing hole is used for the medium to pass through, receives the granule that separates behind the shelves crown plate separates the shelves is born the collector plate and is collected, and filterable effect is good, and the portion of getting is put through pulling down after long-term, can clear away, can not lead to damaging the butterfly valve, is favorable to the butterfly valve to use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of portion A corresponding to FIG. 1;
fig. 3 is an enlarged view of a portion B corresponding to fig. 1.
Detailed Description
The invention will now be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 3, the technical solution adopted by the present embodiment is:
the utility model provides a butterfly valve with filter effect, includes butterfly valve body 1, still include one end can dismantle set up in butterfly valve body 1 intake the end other end can with external pipe connection's connection casing 2, set up in connect 2 up end of casing get put mouthful 3, can dismantle set up in connect 2 go up to be located get put mouthful 3 in get put the portion 4, set up in get put under the portion 4 terminal surface with connect 2 intercommunications of casing be arranged in opening the butterfly valve back separate the shelves crown plate 5 of shelves medium granule, set up in separate shelves crown plate 5 be close to that 1 terminal surface of butterfly valve body be used for a plurality of clearing hole 6 that the medium passes through, set up in separate shelves crown plate 5 lower terminal surface be used for receiving at the granule separate shelves crown plate 5 and separate the bearing collecting plate 7 that bears and collect the granule behind the shelves. One end of the connecting shell 2 is connected with a flange at the water inlet end of the butterfly valve body 1, and the other end of the connecting shell 2 is connected with an external pipeline flange.
The inner wall of the connecting shell 2 is provided with a stable shunting device which can stably shunt the medium until the medium stably flows when the medium of the butterfly valve is opened and the medium instantly flows into the connecting shell 2. The setting of steady diverging device also can prevent to arouse the effect that the inside shock of butterfly valve is flowing in when opening the butterfly valve medium in the twinkling of an eye.
Steady diverging device is including following 2 length direction of connecting casing slide and opening the butterfly valve medium and flow in connect casing 2 the flow distribution plate 8 that goes on shunting to the medium, set up in connect 2 inner walls of casing be located the flow distribution plate 8 with separate fixed ring seat 9 between the shelves ring plate 5, set up in flow distribution plate 8 with flow in the twinkling of an eye opening the butterfly valve medium between the fixed ring seat 9 makes flow distribution plate 8 carry out steady reposition of redundant personnel to the medium until the steady piece that the medium flows steadily when connecting casing 2.
The trim comprises several springs 10 connecting the diverter plate 8 and the stationary ring seat 9.
A flexible anti-corrosion cover 11 for preventing the medium from corroding the spring 10 is arranged between the flow distribution plate 8 and the fixed ring seat 9.
The taking and placing part 4 is a transparent taking and placing part, the bearing and collecting plate 7 is provided with a light source part which can emit light beams to the transparent taking and placing part to detect whether particles are fully accumulated or not, the upper end face of the transparent taking and placing part is provided with a display cloth 12 used for displaying whether a light spot exists or not, and the height of the end face of the light beam emitted by the light source part is lower than that of the upper end face of the bearing and collecting plate 7.
The light source part comprises a waterproof ring plate 13 detachably arranged on the bearing collecting plate 7, a spotlight 14 arranged in the waterproof ring plate 13 and capable of sending light beams to the transparent taking and placing part to detect whether particles are fully accumulated or not, a lower convex lens 15 arranged on the waterproof ring plate 13 and positioned above the spotlight 14, a controller 16 arranged in the waterproof ring plate 13 and used for controlling the spotlight 14 to periodically send out the light beams, and a power supply device 17 arranged in the waterproof ring plate 13 and used for supplying power to the light source part. The power supply device 17 is a secondary battery. The power supply device 17 and the spotlight 14 are electrically connected to the controller 16. The waterproof ring plate 13 is in threaded connection with the bearing and collecting plate 7. A waterproof plate 22 is arranged on the waterproof ring plate 13 and below the power supply device 17.
An upper convex lens 18 for focusing the light beams emitted by the light source component is arranged in the transparent taking and placing part.
The taking and placing part 4 is in threaded connection with the inner wall of the taking and placing opening 3.
The carrier collection plate 7 is provided with a number of draining holes 19 for draining particles from the carrier collection plate 7 when the butterfly valve is closed.
The inner wall of the connecting shell 2 is provided with a propping block 20 for propping against the bearing and collecting plate 7, and a draining area 21 for improving the draining efficiency of the draining hole 19 is formed between the bearing and collecting plate 7 and the inner wall of the connecting shell 2.
The working principle of the invention is as follows: when the butterfly valve is opened, a medium enters from the connecting shell 2 instantly, the medium is divided by the dividing plate 8, the plurality of springs 10 enable the dividing plate 8 to divide the medium stably when the medium of the butterfly valve is opened and flows into the connecting shell 2 instantly until the medium flows stably, the flexible anti-corrosion cover 11 prevents the medium from corroding the springs 10, the medium enters the baffle ring plate 5, the baffle ring plate 5 separates particles in the medium, the plurality of through holes 6 are used for the medium to pass through, the particles separated by the baffle ring plate 5 are loaded and collected by the loading and collecting plate 7, the plurality of draining holes 19 are used for draining the particles on the loading and collecting plate 7 when the butterfly valve is closed, the draining efficiency of the draining holes 19 is improved by the draining areas 21, the controller 16 controls the spotlight 14 to emit light beams periodically, the light beams are focused by the lower convex lens 15 for the first time, then pass through the transparent taking and placing part and then pass through the upper convex lens 18 for the second time of focusing, finally, the light beam forms a light spot on the display cloth 12, because the height of the end face of the light beam emitted by the light source part is lower than that of the upper end face of the bearing and collecting plate 7, when the bearing and collecting plate 7 is full of particles, the particles cover the end face of the light beam emitted by the light source part, the light beam cannot form the light spot on the display cloth 12, the fact that the bearing and collecting plate 7 is full of particles can be known, the transparent taking and placing part is removed at the moment, and the bearing and collecting plate 7, the baffle ring plate 5 and the like are cleaned.
The invention is to protect the structure of a product, the types of all elements are not the protection content of the invention, and are also the known technology, and the elements which can realize the functions of the invention can be selected and applied as a butterfly valve in the market. Therefore, the parameters such as the type of the components are not described in detail in the present invention. The invention is characterized by combining the components together scientifically.
While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are included to illustrate the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents. The invention is not described in detail, but is well known to those skilled in the art.
Claims (10)
1. The utility model provides a butterfly valve with filter effect, includes butterfly valve body, its characterized in that: still include one end can dismantle set up in the butterfly valve body is intake the end other end can with the connection casing of external pipeline connection, set up in connect the casing up end get put mouthful, can dismantle set up in connect lie in on the casing get put intraoral portion of putting, set up in get put down the terminal surface with connect the casing intercommunication be arranged in opening the butterfly valve after separate the shelves crown plate that separates of shelves medium granule, set up in separate the crown plate be close to that terminal surface of butterfly valve body be used for a plurality of clearing hole that the medium passes through, set up in separate under the crown plate terminal surface be used for receiving at the granule separate the shelves crown plate and separate the collection board that bears and collect the granule behind the shelves.
2. A butterfly valve with filtering effect according to claim 1, characterized in that: the inner wall of the connecting shell is provided with a stable shunting device which can stably shunt the medium until the medium stably flows when the medium of the butterfly valve is opened and the medium instantly flows into the connecting shell.
3. A butterfly valve with filtering effect according to claim 2, characterized in that: steady diverging device is including following it slides and is opening the butterfly valve medium and flow in to connect casing length direction carry out the flow distribution plate of reposition of redundant personnel to the medium when connecting the casing, set up in connect shells inner wall to be located the flow distribution plate with separate the fixed ring seat between the shelves crown plate, set up in the flow distribution plate with flow in the twinkling of an eye opening the butterfly valve medium between the fixed ring seat make the flow distribution plate smoothly shunt the medium until the steady piece that the medium flows steadily when connecting the casing.
4. A butterfly valve with filtering effect according to claim 3, characterized in that: the stationary member includes a plurality of springs connected between the diverter plate and the stationary ring mount.
5. A butterfly valve with filtering effect according to claim 4, characterized in that: and a flexible anti-corrosion cover for preventing the medium from corroding the spring is arranged between the flow distribution plate and the fixed ring seat.
6. A butterfly valve with filtering effect according to claim 1, characterized in that: the transparent collecting plate is characterized in that the taking and placing part is a transparent taking and placing part, the transparent taking and placing part is provided with a light source part, the light source part can emit light beams to the transparent taking and placing part to detect whether particles are fully accumulated, the light source part is used for bearing the collecting plate, the upper end face of the transparent taking and placing part is provided with a display cloth used for displaying whether a light spot exists, and the height of the end face of the light beam emitted by the light source part is lower than that of the upper end face of the bearing collecting plate.
7. A butterfly valve with filtering effect according to claim 1, characterized in that: the light source spare including can dismantle set up in bear waterproof crown plate on the collecting plate, set up in the waterproof crown plate can to transparent portion of putting sends the light beam and is used for detecting whether the granule piles up full bear the spotlight of collecting plate, set up in lie in on the waterproof crown plate the lower convex lens of spotlight top, set up in be used for controlling in the waterproof crown plate the spotlight periodically sends the controller of light beam, set up in for the power supply unit of light source spare power supply in the waterproof crown plate.
8. A butterfly valve with filtering effect according to claim 6, characterized in that: and an upper convex lens used for focusing the light beams emitted by the light source part is arranged in the transparent taking and placing part.
9. A butterfly valve with filtering effect according to claim 1, characterized in that: the taking and placing part is in threaded connection with the inner wall of the taking and placing port.
10. A butterfly valve with filtering effect according to claim 1, characterized in that: the bearing and collecting plate is provided with a plurality of draining holes for draining particles on the bearing and collecting plate when the butterfly valve is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111270857.1A CN113996107B (en) | 2021-10-29 | 2021-10-29 | Butterfly valve with filtering effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111270857.1A CN113996107B (en) | 2021-10-29 | 2021-10-29 | Butterfly valve with filtering effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113996107A true CN113996107A (en) | 2022-02-01 |
| CN113996107B CN113996107B (en) | 2023-02-14 |
Family
ID=79925040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111270857.1A Active CN113996107B (en) | 2021-10-29 | 2021-10-29 | Butterfly valve with filtering effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113996107B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201487251U (en) * | 2009-08-27 | 2010-05-26 | 上海华通阀门有限公司 | Highly wear-resistant butterfly valve |
| US20120261324A1 (en) * | 2011-04-12 | 2012-10-18 | Insonic Company | Oil filtering device |
| CN110701316A (en) * | 2019-11-08 | 2020-01-17 | 石狮爱尚商贸有限公司 | Flange formula five metals hot-water heating pipeline butterfly valve |
| CN210890134U (en) * | 2019-09-29 | 2020-06-30 | 浙江瑞邦控制阀门有限公司 | Butterfly valve capable of being maintained on line |
| CN212804405U (en) * | 2020-08-06 | 2021-03-26 | 天津市奥瑞特阀门有限公司 | Wafer type butterfly check valve with internal dredging function |
| CN113324043A (en) * | 2021-06-19 | 2021-08-31 | 江苏奥威机械有限公司 | Stop valve convenient for impurity treatment |
-
2021
- 2021-10-29 CN CN202111270857.1A patent/CN113996107B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201487251U (en) * | 2009-08-27 | 2010-05-26 | 上海华通阀门有限公司 | Highly wear-resistant butterfly valve |
| US20120261324A1 (en) * | 2011-04-12 | 2012-10-18 | Insonic Company | Oil filtering device |
| CN210890134U (en) * | 2019-09-29 | 2020-06-30 | 浙江瑞邦控制阀门有限公司 | Butterfly valve capable of being maintained on line |
| CN110701316A (en) * | 2019-11-08 | 2020-01-17 | 石狮爱尚商贸有限公司 | Flange formula five metals hot-water heating pipeline butterfly valve |
| CN212804405U (en) * | 2020-08-06 | 2021-03-26 | 天津市奥瑞特阀门有限公司 | Wafer type butterfly check valve with internal dredging function |
| CN113324043A (en) * | 2021-06-19 | 2021-08-31 | 江苏奥威机械有限公司 | Stop valve convenient for impurity treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113996107B (en) | 2023-02-14 |
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