CN115143301A - Multifunctional eccentric half ball valve - Google Patents
Multifunctional eccentric half ball valve Download PDFInfo
- Publication number
- CN115143301A CN115143301A CN202210996601.7A CN202210996601A CN115143301A CN 115143301 A CN115143301 A CN 115143301A CN 202210996601 A CN202210996601 A CN 202210996601A CN 115143301 A CN115143301 A CN 115143301A
- Authority
- CN
- China
- Prior art keywords
- valve
- scraper
- seat
- sealing layer
- eccentric half
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 238000003466 welding Methods 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims description 15
- 238000010926 purge Methods 0.000 claims description 13
- 238000007790 scraping Methods 0.000 claims description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000002425 crystallisation Methods 0.000 abstract description 15
- 230000008025 crystallization Effects 0.000 abstract description 15
- 239000002245 particle Substances 0.000 abstract description 8
- 239000008187 granular material Substances 0.000 abstract description 7
- 239000013078 crystal Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000010866 blackwater Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000010797 grey water Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- 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
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
-
- 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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a multifunctional eccentric half-ball valve, relates to the field of valves, and solves the problems that particles or crystals damage a sealing surface and are blocked. The valve seat comprises a seat body, a surfacing sealing layer and a circumferential scraper, wherein the surfacing sealing layer is fixed on the inner end face of the seat body and is in sealing fit with the spherical surface of the hemispherical valve core, the circumferential scraper is positioned on the outer side edge of the surfacing sealing layer, and the circumferential scraper is integrally formed from the inner end face of the seat body, is protruded and is close to the hemispherical valve core so as to scrape the spherical surface of the hemispherical valve core when the hemispherical valve core rotates. The hemisphere case is hugged closely to the hoop scraper, and the hoop scraper is automatic scrapes away the crystallization and the granule of hemisphere case sphere when hemisphere case rotates to the build-up welding sealing layer is located the low reaches position of hoop scraper, and the sphere of hemisphere case is sealed with the build-up welding sealing layer after driving clean again, avoids sealed face to receive the damage of crystallization, keeps the leakproofness permanent, and reduces the hemisphere case because of the emergence of crystallization material jamming phenomenon, reduces the influence that crystallization granule opened and close to the valve.
Description
Technical Field
The invention relates to the field of valves, in particular to a multifunctional eccentric half-ball valve.
Background
In the environment of dust and particle medium, the semi-ball valve is used in the fume and dust removing system of steel mill and power plant, the solid particle medium conveying system in alumina industry and the black water, grey water and slag water system in coal chemical industry. However, in the working condition medium, because solid particles or dust exist, even the spherical surface can generate crystallization at a certain temperature, when the medium crystallization is on the surface of the spherical surface between the valve seat and the spherical surface, the valve is closed, the hemisphere is attached to the valve seat under the action of the eccentric force of the valve rod, effective sealing cannot be formed, the sealing surface is very easy to damage, and serious blocking phenomena such as blocking or aggravation of opening and closing torque and the like easily occur.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects of the prior art, the invention provides a multifunctional eccentric half-ball valve, which solves the problems that particles or crystals damage a sealing surface and are blocked.
The technical scheme of the invention is as follows: including the valve body, the hemisphere case, the disk seat, go up the valve rod, lower valve rod and actuating mechanism, the runner has been seted up in the valve body, the lower extreme is connected in last valve rod, on the lower valve rod, go up the valve rod, the lower valve rod is worn to locate respectively on the valve body, actuating mechanism is connected with last valve rod, the disk seat is installed in the valve body and with the hemisphere case, the disk seat is including the pedestal, build-up welding sealing layer and hoop scraper, build-up welding sealing layer be fixed in on the interior terminal surface of pedestal and with the spherical sealing cooperation of hemisphere case, the hoop scraper is located the outside edge of build-up welding sealing layer, the hoop scraper is close to with the sphere formation scraping to the hemisphere case when the hemisphere case rotates from terminal surface department integrated into one piece in the pedestal and arch and with the hemisphere case.
Adopt above-mentioned technical scheme, the hemisphere case is hugged closely to the hoop scraper, the automatic crystallization and the granule of hemisphere case sphere of scraping of hoop scraper when hemisphere case rotates, and the build-up welding sealing layer is located the low reaches position of hoop scraper, the sphere of hemisphere case is clear away clean back and is sealed with the build-up welding sealing layer again, avoid sealed face to receive the damage of crystallization, effectively protect sealed face, it is permanent to keep the leakproofness, and reduce the hemisphere case because of the emergence of crystallization material jamming phenomenon, reduce the influence that crystallization granule opened and close to the valve.
The invention further comprises the following steps: a plurality of purge holes are annularly arranged in the circumferential direction of the seat body, orifices of the purge holes are aligned with the closed spherical surface of the hemispherical valve core, and communication channels communicated with the purge holes are formed in the periphery of the seat body; the valve body is provided with a vent hole which is communicated with the communication channel, and the vent hole is also connected with an air source for blowing air to the vent hole.
By adopting the further arrangement, the blowing holes can blow the spherical surface of the hemispherical valve core, so that the assistance of crystallization and particle removal, especially the fine particles which can not be scraped by some annular scrapers, can comprehensively remove the crystal adhesion on the spherical surface, and the cleanness of the spherical surface can be kept.
The invention further provides that: the side of the valve body is provided with a scale cleaning pipe, the scale cleaning pipe is close to the bottom of the valve body, the interior of the scale cleaning pipe is communicated with the flow passage, and a cover plate is detachably mounted on the pipe orifice of the scale cleaning pipe.
Adopt above-mentioned further setting again, the valve uses for a long time in the back snaking pipe can pile up crystallization or particle impurity, can open the apron and clear up, maintains the validity of sealed face.
Still further arrangements of the invention are: the annular scraper is in a convex angle shape, the tip end of the annular scraper is provided with a scraping edge surface, and the shape of the scraping edge surface is matched with the spherical surface of the hemispherical valve core in a fitting manner.
Adopt above-mentioned still further setting, the hoop scraper of convex angle shape more makes things convenient for the machine-shaping, scrapes the blade face and can promote to scrape the clear ability.
Still further arrangements of the invention are: the periphery of the seat body is provided with steps, the inner wall of the flow channel is convexly provided with a boss, the boss is abutted and matched with the steps to limit the valve seat, and a sealing element is further arranged at the joint between the boss and the steps.
By adopting the above further arrangement, the matching of the boss and the step is used for limiting the valve seat, the valve seat is prevented from shifting and developing into the collision of the annular scraper on the hemispherical valve core, and the sealing element prevents the medium from entering the joint between the boss and the step.
The invention further provides that: and a pressure plate is arranged at the flow passage opening of the valve body and is propped against the outer end surface of the valve seat.
By adopting the above further arrangement, the valve seat is arranged in the flow passage opening of the valve body and is pressed and fixed by the pressing plate, so that the installation is convenient.
Still further arrangements of the invention are: the hemisphere valve core is eccentrically arranged relative to the upper valve rod.
By adopting the above further arrangement, the sealing surface of the hemispherical valve core deviates from the upper valve rod, so that the hemispherical valve core is in contact sealing with the valve seat at the closing moment, the valve seat is separated from the hemispherical valve core when the hemispherical valve core is opened, the friction is small when the hemispherical valve core is opened and closed, and the opening and closing torque is small.
Still further arrangements of the invention are: the cover plate is provided with a transparent window.
Adopt above-mentioned still further setting again, can see through transparent window and look over the accumulational condition of snaking pipe impurity.
The invention further provides that: the valve body is provided with a mouthpiece seat communicated with the vent hole, and the air source is communicated with the mouthpiece seat through a conduit.
By adopting the further arrangement, the air vent is convenient for the equipment of the air source to be communicated.
Drawings
FIG. 1 is a cross-sectional view of an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of the invention at A in FIG. 1;
FIG. 3 is a cross-sectional view of the present invention taken along the axis of the purge hole;
FIG. 4 is a partial cross-sectional view of B-B of FIG. 1 in accordance with the present invention;
wherein, 1, the valve body; 2. a hemispherical valve core; 3. a valve seat; 4. an upper valve stem; 5. a lower valve stem; 6. an actuator; 11. a flow channel; 31. a base body; 32. surfacing of a sealing layer; 33. a circumferential scraper; 34. a purge hole; 35. a communication channel; 12. a vent hole; 13. cleaning the scale pipe; 14. a cover plate; 331. scraping the blade surface; 36. a step; 15. a boss; 37. a seal member; 16. pressing a plate; 141. a transparent window; 17. an interface seat.
Detailed Description
Fig. 1-4 show a multifunctional eccentric half-ball valve, which includes a valve body 1, a half-ball valve core 2, a valve seat 3, an upper valve rod 4, a lower valve rod 5, and an actuator 6, wherein a flow channel 11 for medium circulation is formed in the valve body 1, the upper and lower ends of the half-ball valve core 2 are connected to the upper valve rod 4 and the lower valve rod 5, the upper valve rod 4 and the lower valve rod 5 are respectively inserted into the valve body 1, the actuator 6 is connected to the upper valve rod 4, the valve seat 3 is installed in the valve body 1, the valve seat 3 includes a seat body 31, a bead weld sealing layer 32, and a circumferential scraper 33, the seat body 31 is in a ring shape, the bead weld sealing layer 32 is fixed on the inner end surface of the seat body 31 and is in sealing fit with the spherical surface of the half-ball valve core 2, the inner end surface of the seat body 31 is an end surface close to the half-ball valve core 2, the circumferential scraper 33 is located on the outer edge of the bead weld sealing layer 32, the circumferential scraper 33 protrudes outward from the inner end surface of the seat body 31, and the circumferential scraper 33 is further formed integrally. The annular scraper 33 abuts against or even contacts the spherical surface of the hemispherical valve core 2 in a closed state, when the hemispherical valve core 2 rotates, the annular scraper 33 can scrape the spherical surface of the hemispherical valve core 2, can scrape crystals or particles attached to the spherical surface of the hemispherical valve core 2, and can clear away the surfacing sealing layer 32 before the spherical sealing matching with the spherical surface of the hemispherical valve core 2, so that the sealing surface is prevented from being damaged.
A plurality of purge holes 34 are annularly arranged in the circumferential direction of the seat body 31, the orifices of the purge holes 34 are aligned with the closed spherical surface of the hemispherical valve core 2, and the hole depth direction of the purge holes 34 is located in the radial direction of the seat body 31. A communicating channel 35 is arranged on the periphery of the seat body 31, and the communicating channel 35 is annular and can be communicated with each blowing hole 34; the valve body 1 is provided with a vent hole 12, the vent hole 12 is communicated with a communication channel 35, and the vent hole 12 is also connected with a gas source for blowing gas to the vent hole 12. Air source output air to the air vent 12 in, the air lets in and communicates channel 35, makes each purge hole 34 all have the air and lets in, and the air blows out from purge hole 34 and can sweep hemisphere case 2 sphere from a plurality of directions, can blow down some tiny crystallization or the granule that annular scraper 33 can't be scraped, avoids the piling up of crystallization or granule.
The side of valve body 1 has the pipe 13 of cleaning scale, and the pipe 13 of cleaning scale is close to the bottom position of valve body 1, and the pipe 13 of cleaning scale is inside to be linked together with runner 11, and along with the long-term back of using of valve, can pile up a certain amount of crystallization or granule impurity and can't be taken away by the medium in the pipe 13 of cleaning scale, and demountable installation has apron 14 on the mouth of pipe 13 of cleaning scale, can open the deposit in the pipe 13 of cleaning scale of apron 14 clearance, does not influence the valve normal use after closing apron 14.
The annular scraper 33 is in a convex angle shape or a shape similar to a triangle, the tip end of the annular scraper is provided with a scraping edge surface 331, and the shape of the scraping edge surface 331 is fit with the spherical surface of the hemispherical valve core 2.
The periphery of the seat body 31 is provided with a step 36, the inner wall of the flow channel 11 is convexly provided with a boss 15, the boss 15 can be abutted against the step 36 in the loading process of the valve seat 3, the valve seat 3 can not further move towards the hemispherical valve core 2, and the annular scraper 33 and the surfacing sealing layer 32 are respectively close to and contact the hemispherical valve core 2, so that the valve seat 3 has a position limit, and the annular scraper 33 is prevented from colliding with the hemispherical valve core 2. A sealing element 37 is also arranged at the joint between the boss 15 and the step 36, so that the medium is prevented from entering the joint to influence the sealing performance and the normal operation of the valve seat 3.
A pressure plate 16 is installed at the opening of the flow passage 11 of the valve body 1, the pressure plate 16 is pressed against the outer end face of the valve seat 3, and the pressure plate 16 is fixed on the valve body 1 through screws. During assembly, the valve seat 3 is firstly installed in the opening of the flow passage 11 of the valve body 1, the step 36 is pressed against the boss 15, the valve seat 3 is pressed against the pressure plate 16 for fixation, and finally the screw is screwed tightly for fastening.
Install transparent window 141 on the apron 14, can see through transparent window 141 and look over the accumulational condition of snaking pipe 13 impurity, when appropriate, open apron 14, the clearance deposit.
The valve body 1 is provided with a connector seat 17 communicated with the vent hole 12, an air source is communicated with the connector seat 17 through a conduit, and equipment of the air source transmits air to the conduit and is filled into the vent hole 12 through the connector seat 17.
Claims (9)
1. The utility model provides a multi-functional eccentric half ball valve, includes valve body, hemisphere case, disk seat, goes up valve rod, lower valve rod and actuating mechanism, the runner has been seted up in the valve body, the upper and lower end of hemisphere case is connected on last valve rod, lower valve rod, go up the valve rod, lower valve rod wears to locate respectively on the valve body, actuating mechanism is connected with last valve rod, the disk seat is installed in the valve body, its characterized in that: the disk seat is including pedestal, build-up welding sealing layer and hoop scraper, the build-up welding sealing layer be fixed in on the interior terminal surface of pedestal and with the spherical sealing cooperation of hemisphere case, the hoop scraper is located the outside edge of build-up welding sealing layer, the hoop scraper is located integrated into one piece and protruding and be close to with the hemisphere case from the pedestal interior terminal surface and scrape with the sphere formation of hemisphere case when hemisphere case rotates.
2. The multifunctional eccentric half-ball valve according to claim 1, wherein: a plurality of purge holes are annularly arranged in the circumferential direction of the seat body, orifices of the purge holes are aligned with the closed spherical surface of the hemispherical valve core, and communication channels communicated with the purge holes are formed in the periphery of the seat body; the valve body is provided with a vent hole, the vent hole is communicated with the communicating channel, and the vent hole is also connected with an air source for blowing air to the vent hole.
3. The multifunctional eccentric half-ball valve according to claim 2, wherein: the side of the valve body is provided with a scale cleaning pipe, the scale cleaning pipe is close to the bottom of the valve body, the inside of the scale cleaning pipe is communicated with the flow channel, and a cover plate is detachably mounted on the pipe orifice of the scale cleaning pipe.
4. The multifunctional eccentric half-ball valve according to claim 1 or 3, wherein: the annular scraper is in a convex angle shape, the tip end of the annular scraper is provided with a scraping edge surface, and the shape of the scraping edge surface is fit with the spherical surface of the hemispherical valve core.
5. The multifunctional eccentric half-ball valve according to claim 1 or 3, wherein: the periphery of the seat body is provided with steps, the inner wall of the flow channel is convexly provided with a boss, the boss is abutted and matched with the steps to limit the valve seat, and a sealing element is further installed at the joint between the boss and the steps.
6. The multifunctional eccentric half-ball valve according to claim 5, wherein: and a pressing plate is arranged at the flow passage opening of the valve body and is pressed on the outer end face of the valve seat.
7. The multifunctional eccentric half-ball valve according to claim 1 or 3, wherein: the hemisphere valve core is eccentrically arranged relative to the upper valve rod.
8. The multifunctional eccentric half-ball valve according to claim 3, wherein: and the cover plate is provided with a transparent window.
9. The multifunctional eccentric half-ball valve according to claim 2, wherein: the valve body is provided with a connector base communicated with the vent hole, and the air source is communicated with the connector base through a conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210996601.7A CN115143301A (en) | 2022-08-19 | 2022-08-19 | Multifunctional eccentric half ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210996601.7A CN115143301A (en) | 2022-08-19 | 2022-08-19 | Multifunctional eccentric half ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115143301A true CN115143301A (en) | 2022-10-04 |
Family
ID=83415198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210996601.7A Pending CN115143301A (en) | 2022-08-19 | 2022-08-19 | Multifunctional eccentric half ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115143301A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024102656A1 (en) * | 2022-11-10 | 2024-05-16 | Flowserve Pte. Ltd. | Ball valve with downstream residue purge |
-
2022
- 2022-08-19 CN CN202210996601.7A patent/CN115143301A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024102656A1 (en) * | 2022-11-10 | 2024-05-16 | Flowserve Pte. Ltd. | Ball valve with downstream residue purge |
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