CN108825829B - One-way valve capable of manually adjusting flow - Google Patents
One-way valve capable of manually adjusting flow Download PDFInfo
- Publication number
- CN108825829B CN108825829B CN201810790684.8A CN201810790684A CN108825829B CN 108825829 B CN108825829 B CN 108825829B CN 201810790684 A CN201810790684 A CN 201810790684A CN 108825829 B CN108825829 B CN 108825829B
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- valve
- cavity
- flow
- rod
- adjusting
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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
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated 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
- 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
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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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
- 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
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a one-way valve capable of manually regulating flow, which comprises a valve body, a valve core, a valve clack, a first valve cover, a second valve cover, a valve rod, a bracket and a hand wheel, a fluid inflow cavity, a flow regulating cavity, a one-way circulation cavity and a fluid inflow cavity which are communicated in sequence are arranged in the valve body, the bottom of the flow regulating cavity is provided with a regulating ferrule, the flow regulating cavity is provided with a sealing seat ring, the first valve cover is fixed on the valve body, the bracket is fixed on the first valve cover, a valve rod nut is arranged at the center of the upper end of the bracket, a packing gland is arranged at the center of the first valve cover, a packing is arranged in the packing gland, the valve core is fixed at the lower end of the valve rod, the one-way circulation chamber with the intercommunication department in fluid outflow chamber is equipped with the disk seat, the disk seat top is equipped with the second valve gap, be equipped with the movable rod in the leading truck, the movable rod lower extreme and valve clack fixed connection. The invention has the advantages of simple structure and strong practicability.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a one-way valve capable of manually adjusting flow.
Background
The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves used in fluid control systems range in variety and size from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems. 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. Most of the one-way valves in the market at present only have the functions of stopping, shunting and the like, and cannot adjust the flow of fluid. Therefore, how to adjust the flow of the check valve and reduce the impact force when the check valve conveys the medium is a difficult problem in the whole society.
Disclosure of Invention
The invention aims to solve the problems and designs a check valve capable of manually adjusting the flow.
The technical scheme of the invention is that the one-way valve capable of manually adjusting the flow comprises a valve body, a valve core, a valve clack, a first valve cover, a second valve cover, a valve rod, a support and a hand wheel, wherein a fluid inflow cavity, a flow adjusting cavity, a one-way circulation cavity and a fluid outflow cavity are arranged in the valve body, the fluid inflow cavity, the flow adjusting cavity, the one-way circulation cavity and the fluid outflow cavity are sequentially communicated in the valve body, one end of the fluid inflow cavity is inclined downwards to the lower end of the flow adjusting cavity and is communicated with the flow adjusting cavity, an adjusting ferrule is arranged at the bottom of the flow adjusting cavity, internal threads are tapped on the inner wall of the adjusting ferrule, a sealing seat ring is arranged on the flow adjusting cavity, the first valve cover is fixed on the valve body and is positioned above the flow adjusting cavity, the support is fixed on the first valve cover, and a valve rod nut is arranged at, a packing gland is arranged at the center of the first valve cover, a packing is arranged in the packing gland, the lower end of the valve rod penetrates through the packing gland and extends into the flow regulating cavity, an external thread matched with the thread of the valve rod nut is tapped at the upper end of the valve rod and is connected with the thread of the valve rod nut, a clamping block is arranged at the upper end of the valve rod, a clamping groove capable of clamping the clamping block is arranged at the center of the hand wheel, the clamping block is clamped in the clamping groove and is connected with the hand wheel, the valve core is fixed at the lower end of the valve rod, an external thread matched with the internal thread of the regulating ring is tapped on the valve core, a limiting groove is arranged at the center of the bottom end of the valve core, a limiting rod vertically extending into the limiting groove is fixed at the bottom end of the fluid inflow cavity, one end of the one-way circulation cavity is communicated, the one-way circulation chamber with the intercommunication department in fluid outflow chamber is equipped with the disk seat, just be located on the valve body the disk seat top is equipped with the second valve gap, the second valve gap lower extreme is equipped with the leading truck, it has the movable groove to open in the leading truck, be equipped with the axle sleeve in the movable groove, be equipped with the movable rod in the axle sleeve, the movable rod lower extreme with valve clack fixed connection, the valve clack is located directly over the disk seat.
Flanges are fixedly arranged at the left end and the right end of the valve body.
The first valve cover and the second valve cover are connected with the valve body through bolts.
The valve clack is discoid, valve clack bottom is opened has the chamfer.
The upper end of the adjusting ferrule is inclined, and the opening of the upper end of the adjusting ferrule faces one side of the one-way circulation cavity.
And sealing rings are arranged at the joints of the first valve cover and the second valve cover with the valve body.
The inlet end of the fluid inflow cavity and the outlet end of the fluid outflow cavity are in the same plane.
The length of the movable rod is the same as that of the movable groove, and when the movable rod completely extends into the movable groove, the valve clack is attached to the guide frame.
The valve body, the valve core, the valve clack, the first valve cover, the second valve cover, the valve rod and the support are all made of stainless steel materials through die casting.
An adjusting scale is arranged on the first valve cover.
The one-way valve capable of manually adjusting the flow rate, which is manufactured by the technical scheme of the invention, can conveniently adjust the flow rate of fluid by screwing the hand wheel, can accurately adjust the flow rate by comparing the adjusting scale, has the advantages of improved sealing property, simple structure, reasonable design and suitability for popularization and use.
Drawings
FIG. 1 is a schematic diagram of a one-way valve for manually regulating flow in accordance with the present invention;
FIG. 2 is a front view of a manually adjustable flow check valve of the present invention;
FIG. 3 is an enlarged view of a portion of the invention at A in FIG. 1;
FIG. 4 is an enlarged view of a portion of the invention at B in FIG. 1;
FIG. 5 is a schematic view of the hand wheel of the present invention;
in the figure, 1, a valve body; 2. a valve core; 3. a valve flap; 4. a first valve cover; 5. a second valve cover; 6. a valve stem; 7. a support; 8. a hand wheel; 9. a fluid inflow chamber; 10. a flow regulating cavity; 11. a one-way flow chamber; 12. a fluid outflow chamber; 13. adjusting the ferrule; 14. sealing the seat ring; 15. a valve stem nut; 16. packing gland; 17. a clamping block; 18. a card slot; 19. a limiting groove; 20. a limiting rod; 21. a valve seat; 22. a guide frame; 23. a movable groove; 24. a shaft sleeve; 25. a movable rod; 26. a flange; 27. a bolt; 28. a seal ring; 29. and adjusting the scale.
Detailed Description
The invention is described in detail with reference to the accompanying drawings, as shown in fig. 1-5, a check valve capable of manually adjusting flow rate comprises a valve body 1, a valve core 2, a valve flap 3, a first valve cover 4, a second valve cover 5, a valve rod 6, a support 7 and a hand wheel 8, wherein a fluid inflow cavity 9, a flow rate adjusting cavity 10, a one-way circulation cavity 11 and a fluid outflow cavity 12 are arranged in the valve body 1, the fluid inflow cavity 9, the flow rate adjusting cavity 10, the one-way circulation cavity 11 and the fluid outflow cavity 12 are sequentially communicated in the valve body 1, one end of the fluid inflow cavity 9 obliquely extends downwards to the lower end of the flow rate adjusting cavity 10 and is communicated with the flow rate adjusting cavity 10, an adjusting collar 13 is arranged at the bottom of the flow rate adjusting cavity 10, an internal thread is tapped on the inner wall of the adjusting collar 13, a sealing seat ring 14 is arranged on the flow rate adjusting cavity 10, the first valve cover 4 is fixed on the valve, the support 7 is fixed on the first valve cover 4, a valve rod nut 15 is arranged at the center of the upper end of the support 7, a packing gland 16 is arranged at the center of the first valve cover 4, a packing is arranged in the packing gland 16, the lower end of the valve rod 6 penetrates through the packing gland 16 and extends into the flow regulating cavity 10, an external thread matched with the valve rod nut 15 in a threaded manner is tapped at the upper end of the valve rod 6 and is in threaded connection with the valve rod nut 15, a clamping block 17 is arranged at the upper end of the valve rod 6, a clamping groove 18 capable of clamping the clamping block 17 is arranged at the center of the hand wheel 8, the clamping block 17 is clamped in the clamping groove 18 and is connected with the hand wheel 8, the valve core 2 is fixed at the lower end of the valve rod 6, an external thread matched with the internal thread of the regulating ring 13 is tapped on the valve core 2, a limiting groove 19 is arranged at the center of the bottom end of the valve core 2, a limiting rod 20 vertically extending, one end of the one-way circulation cavity 11 is communicated with the flow regulating cavity 10, the other end of the one-way circulation cavity extends obliquely downwards and is communicated with the fluid outflow cavity 12, a valve seat 21 is arranged at the communication position of the one-way circulation cavity 11 and the fluid outflow cavity 12, a second valve cover 5 is arranged on the valve body 1 and above the valve seat 21, a guide frame 22 is arranged at the lower end of the second valve cover 5, a movable groove 23 is formed in the guide frame 22, a shaft sleeve 24 is arranged in the movable groove 23, a movable rod 25 is arranged in the shaft sleeve 24, the lower end of the movable rod 25 is fixedly connected with the valve clack 3, and the valve clack 3 is positioned right above the valve seat 21; flanges 26 are fixedly arranged at the left end and the right end of the valve body 1; the first valve cover 4 and the second valve cover 5 are connected with the valve body 1 through bolts 27; the valve clack 3 is disc-shaped, and the bottom of the valve clack 3 is provided with a reverse part; the upper end of the adjusting ferrule 13 is inclined, and the upper end opening of the adjusting ferrule 13 faces one side of the one-way circulation cavity 11; sealing rings 28 are arranged at the joints of the first valve cover 4 and the second valve cover 5 with the valve body 1; the inlet end of the fluid inflow chamber 9 and the outlet end of the fluid outflow chamber 12 are in the same plane; the length of the movable rod 25 is the same as that of the movable groove 23, and when the movable rod 25 completely extends into the movable groove 23, the valve clack 3 is attached to the guide frame 22; the valve body 1, the valve core 2, the valve clack 3, the first valve cover 4, the second valve cover 5, the valve rod 6 and the bracket 7 are all made of stainless steel materials through die casting; an adjusting scale 29 is arranged on the first valve cover 4.
The embodiment is characterized in that a fluid inflow cavity, a flow regulating cavity, a one-way circulation cavity and a fluid outflow cavity are sequentially communicated in a valve body, one end of the fluid inflow cavity extends downwards obliquely to the lower end of the flow regulating cavity and is communicated with the flow regulating cavity, the bottom of the flow regulating cavity is provided with a regulating ferrule, the inner wall of the regulating ferrule is provided with internal threads, the flow regulating cavity is provided with a sealing seat ring, a first valve cover is fixed on the valve body and is positioned above the flow regulating cavity, a support is fixed on the first valve cover, a valve rod nut is arranged at the center of the upper end of the support, a packing gland is arranged at the center of the first valve cover, a packing is arranged in the packing gland, the lower end of the valve rod penetrates through the packing gland and extends into the flow regulating cavity, the upper end of the valve rod is provided with external threads matched with the threads of the valve, the clamping block is clamped in the clamping groove and connected with the hand wheel, the valve core is fixed at the lower end of the valve rod, external threads matched with the internal threads of the adjusting sleeve ring are tapped on the valve core, a limiting groove is formed in the center of the bottom end of the valve core, a limiting rod vertically extending into the limiting groove is fixed at the bottom end of the fluid inflow cavity, one end of the one-way circulation cavity is communicated with the flow adjusting cavity, the other end of the one-way circulation cavity extends obliquely and downwards and is communicated with the fluid outflow cavity, a valve seat is arranged at the communication position of the one-way circulation cavity and the fluid outflow cavity, a second valve cover is arranged on the valve body and located above the valve seat, a guide frame is arranged at the lower end of the second valve cover, a movable groove is formed in the. The one-way valve capable of manually adjusting the flow rate, which is manufactured by the technical scheme of the invention, can conveniently adjust the flow rate of fluid by screwing the hand wheel, can accurately adjust the flow rate by comparing the adjusting scale, has the advantages of improved sealing property, simple structure, reasonable design and suitability for popularization and use.
In the embodiment, the fluid flows into the flow regulating cavity from the fluid inflow cavity, the valve core is in a valve closing state when completely entering the regulating collar, the valve core is in threaded sealing connection with the regulating collar to prevent the fluid from passing through the fluid regulating cavity, the hand wheel drives the valve rod to rotate by screwing the hand wheel, the valve rod rotates and gradually rises in the valve rod nut, the valve rod drives the valve core to rotate, the valve core is screwed out from the regulating collar, the limiting groove at the bottom of the valve core is gradually separated from the limiting rod, the valve core can be gradually separated from the regulating collar in the process of screwing the valve core out from the regulating collar due to the fact that the upper end of the regulating collar is in an inclined shape, the through hole between the bottom of the valve core and the regulating collar can be gradually enlarged until the valve core is completely separated from the regulating collar, when the hand wheel is screwed, the size of the through hole between, the valve core is screwed into the adjusting ferrule by screwing the hand wheel down, the limiting rod extends into the limiting groove at the bottom of the valve core, the valve core is prevented from being incapable of being connected with the adjusting ferrule due to fluid impact, and the valve core is accurately screwed into the adjusting ferrule.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.
Claims (8)
1. A one-way valve capable of manually adjusting flow comprises a valve body (1), a valve core (2), a valve clack (3), a first valve cover (4), a second valve cover (5), a valve rod (6), a support (7) and a hand wheel (8), and is characterized in that a fluid inflow cavity (9), a flow adjusting cavity (10), a one-way circulation cavity (11) and a fluid outflow cavity (12) are arranged in the valve body (1), the fluid inflow cavity (9), the flow adjusting cavity (10), the one-way circulation cavity (11) and the fluid outflow cavity (12) are sequentially communicated in the valve body (1), one end of the fluid inflow cavity (9) obliquely extends downwards to the lower end of the flow adjusting cavity (10) and is communicated with the flow adjusting cavity (10), an adjusting ferrule (13) is arranged at the bottom of the flow adjusting cavity (10), and internal threads are tapped on the inner wall of the adjusting ferrule (13), a sealing seat ring (14) is arranged on the flow adjusting cavity (10), the first valve cover (4) is fixed on the valve body (1) and is positioned above the flow adjusting cavity (10), the support (7) is fixed on the first valve cover (4), a valve rod nut (15) is arranged at the center of the upper end of the support (7), a packing gland (16) is arranged at the center of the first valve cover (4), a packing is arranged in the packing gland (16), the lower end of the valve rod (6) penetrates through the packing gland (16) and extends into the flow adjusting cavity (10), an external thread which is in threaded fit with the valve rod nut (15) is tapped at the upper end of the valve rod (6) and is in threaded connection with the valve rod nut (15), a clamping block (17) is arranged at the upper end of the valve rod (6), a clamping groove (18) which can clamp the clamping block (17) is arranged at the center of the hand wheel (8), the clamping block (17) is clamped in the clamping groove (18) and connected with the hand wheel (8), the valve core (2) is fixed at the lower end of the valve rod (6), an external thread matched with the internal thread of the adjusting collar (13) is tapped on the valve core (2), a limiting groove (19) is formed in the center of the bottom end of the valve core (2), a limiting rod (20) vertically extending into the limiting groove (19) is fixed at the bottom end of the fluid inflow cavity (9), one end of the one-way circulation cavity (11) is communicated with the flow adjusting cavity (10), the other end of the one-way circulation cavity obliquely and downwardly extends and is communicated with the fluid outflow cavity (12), a valve seat (21) is arranged at the communication position of the one-way circulation cavity (11) and the fluid outflow cavity (12), a second valve cover (5) is arranged on the valve body (1) and above the valve seat (21), and a guide frame (22) is arranged at the lower end of the second valve cover, it has activity groove (23) to open in leading truck (22), be equipped with axle sleeve (24) in activity groove (23), be equipped with movable rod (25) in axle sleeve (24), movable rod (25) lower extreme with valve clack (3) fixed connection, valve clack (3) are located directly over disk seat (21), valve clack (3) are discoid, valve clack (3) bottom is opened there is the chamfer, adjust lasso (13) upper end and be the slope form, the upper end opening orientation of adjusting lasso (13) one-way circulation chamber (11) one side.
2. A check valve with manual flow regulation according to claim 1, characterized in that flanges (26) are fixedly arranged at the left end and the right end of the valve body (1).
3. A manually adjustable flow check valve as claimed in claim 1, wherein the first bonnet (4) and the second bonnet (5) are connected to the valve body (1) by bolts (27).
4. A one-way valve with manual flow regulation according to claim 1, characterized in that the joints of the first valve cover (4) and the second valve cover (5) and the valve body (1) are provided with sealing rings (28).
5. A manually adjustable flow check valve as claimed in claim 1, wherein the inlet end of the fluid inflow chamber (9) is coplanar with the outlet end of the fluid outflow chamber (12).
6. A check valve for manually regulated flow according to claim 1, characterized in that said movable rod (25) has the same length as said movable slot (23), said flap (3) being attached to said guide (22) when said movable rod (25) is fully inserted in said movable slot (23).
7. The check valve capable of manually adjusting the flow rate according to claim 1, wherein the valve body (1), the valve core (2), the valve clack (3), the first valve cover (4), the second valve cover (5), the valve rod (6) and the bracket (7) are all made of stainless steel materials through die casting.
8. A check valve with manual flow regulation according to claim 1, characterized in that the first valve cover (4) is provided with an adjustment scale (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810790684.8A CN108825829B (en) | 2018-07-18 | 2018-07-18 | One-way valve capable of manually adjusting flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810790684.8A CN108825829B (en) | 2018-07-18 | 2018-07-18 | One-way valve capable of manually adjusting flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108825829A CN108825829A (en) | 2018-11-16 |
| CN108825829B true CN108825829B (en) | 2021-03-09 |
Family
ID=64140080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810790684.8A Active CN108825829B (en) | 2018-07-18 | 2018-07-18 | One-way valve capable of manually adjusting flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108825829B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE366114A (en) * | ||||
| CN101029689A (en) * | 2007-04-05 | 2007-09-05 | 山西兴工阀门制造有限公司 | Replaceable valve of dual-sealing ring |
| CN103899800A (en) * | 2014-03-05 | 2014-07-02 | 大丰市奥凯流体机械有限公司 | Lifting check valve |
| CN104676078A (en) * | 2015-03-22 | 2015-06-03 | 衢州迪升工业设计有限公司 | Self-holding solenoid valve |
| CN205278424U (en) * | 2015-11-27 | 2016-06-01 | 柳州欧维姆机械股份有限公司 | Uninstallation is with small flow choke valve |
| CN206145199U (en) * | 2016-08-30 | 2017-05-03 | 江苏苏盐阀门机械有限公司 | Check valve with by function |
| CN106763833A (en) * | 2017-01-22 | 2017-05-31 | 江苏金晟元特种阀门股份有限公司 | Special valve for special chlorine |
| CN206496044U (en) * | 2017-01-26 | 2017-09-15 | 东莞市菱鑫机电科技有限公司 | A kind of flowing valve of anti-return and energy internal pressure self-tightening |
| CN107795701A (en) * | 2017-11-24 | 2018-03-13 | 王建强 | Precise throttling valve |
| CN207178710U (en) * | 2017-09-12 | 2018-04-03 | 周胡琴 | External screw thread needle valve |
| CN207406844U (en) * | 2017-11-18 | 2018-05-25 | 温州翰智信息技术有限公司 | A kind of check-valves of the operation is stable |
| CN207470793U (en) * | 2017-11-24 | 2018-06-08 | 苏州意锦润机械有限公司 | Spiral plug valve |
-
2018
- 2018-07-18 CN CN201810790684.8A patent/CN108825829B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE366114A (en) * | ||||
| CN101029689A (en) * | 2007-04-05 | 2007-09-05 | 山西兴工阀门制造有限公司 | Replaceable valve of dual-sealing ring |
| CN103899800A (en) * | 2014-03-05 | 2014-07-02 | 大丰市奥凯流体机械有限公司 | Lifting check valve |
| CN104676078A (en) * | 2015-03-22 | 2015-06-03 | 衢州迪升工业设计有限公司 | Self-holding solenoid valve |
| CN205278424U (en) * | 2015-11-27 | 2016-06-01 | 柳州欧维姆机械股份有限公司 | Uninstallation is with small flow choke valve |
| CN206145199U (en) * | 2016-08-30 | 2017-05-03 | 江苏苏盐阀门机械有限公司 | Check valve with by function |
| CN106763833A (en) * | 2017-01-22 | 2017-05-31 | 江苏金晟元特种阀门股份有限公司 | Special valve for special chlorine |
| CN206496044U (en) * | 2017-01-26 | 2017-09-15 | 东莞市菱鑫机电科技有限公司 | A kind of flowing valve of anti-return and energy internal pressure self-tightening |
| CN207178710U (en) * | 2017-09-12 | 2018-04-03 | 周胡琴 | External screw thread needle valve |
| CN207406844U (en) * | 2017-11-18 | 2018-05-25 | 温州翰智信息技术有限公司 | A kind of check-valves of the operation is stable |
| CN107795701A (en) * | 2017-11-24 | 2018-03-13 | 王建强 | Precise throttling valve |
| CN207470793U (en) * | 2017-11-24 | 2018-06-08 | 苏州意锦润机械有限公司 | Spiral plug valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108825829A (en) | 2018-11-16 |
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