CN110440037A - Control valve fitment and the water softening device comprising it - Google Patents
Control valve fitment and the water softening device comprising it Download PDFInfo
- Publication number
- CN110440037A CN110440037A CN201910399029.4A CN201910399029A CN110440037A CN 110440037 A CN110440037 A CN 110440037A CN 201910399029 A CN201910399029 A CN 201910399029A CN 110440037 A CN110440037 A CN 110440037A
- Authority
- CN
- China
- Prior art keywords
- port
- control valve
- valve
- fluid channel
- fitment
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 239000012530 fluid Substances 0.000 claims abstract description 66
- 230000001105 regulatory effect Effects 0.000 claims abstract description 31
- 150000003839 salts Chemical class 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 235000015598 salt intake Nutrition 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical class O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- -1 passing through Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- 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
- F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
- F16K15/1823—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism for ball check valves
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/005—Valves
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention discloses a kind of control valve fitment and include its water softening device.The control valve fitment includes: ontology, regulating valve and non-return valve set on body interior；Ontology is equipped with first port, second port, first fluid channel and second fluid channel, and first fluid channel and second fluid channel are connected between first port and second port；Non-return valve is set in first fluid channel and for preventing the fluid in first fluid channel from flowing to second port from first port；Regulating valve is set in second fluid channel and for adjusting the total amount for flowing through the fluid in second fluid channel.The water softening device includes that salt box, control valve and control valve fitment as above, first port are connected to control valve, and second port is connected to salt box.The control valve fitment can be external in control valve, simplify the structure of control valve and for ease of maintenaince and production.The water softening device uses external control valve fitment, reduces overall manufacturing cost.
Description
Technical field
The present invention relates to a kind of control valve fitment and include its water softening device.
Background technique
Household water softening device has used automatic multi-way control valve mostly in the market at present, can be automatically controled each process of regeneration,
Negative pressure is formed including the use of built-in injector and draws saturated brine from salt box, and regenerating resin, this is to inhale salt process；It can also be again
Built-in salt valve is opened before death or after regeneration to fill the water into salt box, forms saturated brine for regenerating next time to dissolving salt particle
It uses, this is the injecting process；General water filling water needs quantitative control, achievees the purpose that accurately to control salt consumption.
Since bore is smaller, generally three are in charge of the built-in salt valve of control valve, using flux also very little, are typically independent of
It is individually designed except entire main control regeneration water route, it is opened when only inhaling salt and water filling, operation, backwash are just washing etc. and to be both needed to close.With
For piston valve, a salt valve piston is also needed except main piston, which adds the control difficulty of transmission linkage mechanism
And cost, there is also additional mass risks.
It is furnished with float liquid level control valve in the salt box of some water softening devices, water filling water can be controlled in water filling,
It is automatically closed after reaching liquid level, the built-in salt valve being at this moment no longer needed in control valve causes to waste.But while simply, just
Preferably, this scheme due to control valve computer can not be precisely controlled salt consumption and actual used water amount matching, be not popular yet.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome the drawbacks of the prior art, provide a kind of control valve fitment and packet
Containing its water softening device.
The present invention is to solve above-mentioned technical problem by following technical proposals:
A kind of control valve fitment comprising: ontology, regulating valve and non-return valve set on the body interior；
The ontology is equipped with first port, second port, first fluid channel and second fluid channel, the first fluid
Channel and second fluid channel are connected between the first port and the second port；
The non-return valve be set in the first fluid channel and for prevent fluid in the first fluid channel from
The first port flows to the second port；
The regulating valve is set in the second fluid channel and for adjusting the stream flowed through in the second fluid channel
The total amount of body.
Preferably, the regulating valve is solenoid valve.
Preferably, the non-return valve includes mouse cage grid and the check ball inside the mouse cage grid, the mouse cage
Grill cover is set on the first valve seat in the first fluid channel, and the check ball can be connected to described under the pressure of fluid
First valve seat.
Preferably, current-limiting apparatus is additionally provided in the first port, the current-limiting apparatus is for flowing into described first
The flow of the fluid of port is constant.
Current-limiting apparatus is being set in the present solution, passing through, water can filled the water by controlling the opening/closing time control of solenoid valve,
Which is simple and easy.
Preferably, the current-limiting apparatus includes constrictor and reducing stent, and the reducing stent is cage-shaped structure and is provide with
In on the second valve seat in the first port, the constrictor is set to inside the reducing stent and can be in the current limliting branch
It moves in frame to abut or be detached from second valve seat.
Preferably, the constrictor is the elastic disk equipped with centre bore.
Preferably, the second port be equipped with the fast inserting structure of hose, the fast inserting structure of hose include sealing ring, pressure cap,
Apical ring, the pressure cap are fixed on the inside of the second port, and the apical ring is inserted into the inside of the pressure cap, and the sealing ring is set
In the side of the opening far from the second port of the apical ring.
Preferably, the body interior is equipped with first chamber and second chamber, the first chamber and the second chamber
It is interconnected by the first opening and the second opening, the first port leads to the first chamber, and the second port is led to
The second chamber, regulating valve opening and closing first opening, non-return valve opening and closing second opening；
The first fluid channel is from the second port via the second chamber, second opening, described the
One chamber to the channel of the first port, the second fluid channel be from the first port via the first chamber,
First opening, the second chamber to the channel of the second port.
Preferably, the ontology includes the first end oral area equipped with the first port, the equipped with the second port
Two-port netwerk portion, the non-return valve mounting portion equipped with the non-return valve, the regulating valve mounting portion equipped with the regulating valve, the second end
Oral area is set to the opposite side of the regulating valve mounting portion, and the non-return valve mounting portion is connected to the second end oral area and the tune
The position between valve mounting portion is saved, the first end oral area is arranged perpendicular to the first end oral area.
A kind of water softening device, the water softening device include salt box, control valve and control valve fitment, the first end as described above
Mouth is connected to the control valve, and the second port is connected to the salt box.
The positive effect of the present invention is that: the control valve fitment can be external in control valve, simplify the knot of control valve
Structure and for ease of maintenaince and production.The water softening device uses external control valve fitment, reduces overall manufacturing cost.
Detailed description of the invention
Fig. 1 is that the internal fluid channels according to the control valve fitment of one embodiment of the present of invention in the case where inhaling salt state are illustrated
Figure.
Fig. 2 is that the internal fluid channels according to the control valve fitment of one embodiment of the present of invention under charging state are illustrated
Figure.
Fig. 3 is the schematic perspective view according to the control valve fitment of one embodiment of the present of invention.
Fig. 4 is the side structure schematic view according to the control valve fitment of one embodiment of the present of invention.
Fig. 5 is the cross section structure schematic diagram along the control valve fitment of the line A-A interception in Fig. 4.
Fig. 6 is the cross section structure schematic diagram along the control valve fitment of the line B-B interception in Fig. 4.
Description of symbols:
Control valve fitment 100
Ontology 101
First port 111
Second port 112
First fluid channel 121
Second fluid channel 122
First chamber 131
Second chamber 132
First opening 141
Second opening 142
First end oral area 151
Second end oral area 152
Non-return valve mounting portion 153
Regulating valve mounting portion 154
Gland 155
Regulating valve 160
Non-return valve 170
Mouse cage grid 171
Check ball 172
First valve seat 181
Second valve seat 182
Constrictor 185
Reducing stent 186
The fast inserting structure 190 of hose
Sealing ring 191
Pressure cap 192
Apical ring 193
Specific embodiment
With reference to the accompanying drawing, the present invention is further illustrated by way of embodiment, but is not therefore limited the invention to
Among following scope of embodiments.
The control valve fitment 100 of the present embodiment is used for the control valve (not illustrating in figure) of water softening device, and for assisting control
Valve processed, which executes, inhales salt water flood operations.
As shown in Figs. 1-2, control valve fitment 100 includes: ontology 101, the regulating valve 160 inside ontology 101 and inverse
Only valve 170.
Ontology 101 is equipped with first port 111, second port 112, first fluid channel 121 and second fluid channel 122,
First fluid channel 121 and second fluid channel 122 are connected between first port 111 and second port 112.
Non-return valve 170 is set in first fluid channel 121 and for preventing the fluid in first fluid channel 121 from first
Port 111 flows to second port 112.
Regulating valve 160 is set in second fluid channel 122 and flows through the fluid in second fluid channel 122 for adjusting
Total amount.
Fig. 1 reference arrow shows first fluid channel 121, and Fig. 2 reference arrow shows second fluid channel 122.
First chamber 131 and second chamber 132 are equipped with inside ontology 101, first chamber 131 and second chamber 132 pass through
First opening 141 and the second opening 142 are interconnected, and first port 111 leads to first chamber 131, and second port 112 leads to the
Two chambers 132, first opening 141 of the opening and closing of regulating valve 160, second opening 142 of the opening and closing of non-return valve 170.
First fluid channel 121 is from second port 112 successively via the 142, first chamber of opening of second chamber 132, second
The channel of first port 111 is arrived in room 131, and second fluid channel 122 is from first port 111 successively via first chamber 131, the
One opening 141, second chamber 132 arrive the channel of second port 112.
Referring to Fig. 1, when control valve inhales salt, fluid flows through first fluid channel 121.Regulating valve 160 is closed, first port
Negative pressure at 111 opens non-return valve 170, it is ensured that and the saline solution in salt box enters first port 111 by second port 112,
And then enters control valve and resin is regenerated.
Referring to fig. 2, when control valve fills the water, fluid flows through second fluid channel 122.Positive pressure at first port 111 makes
Non-return valve 170 is closed, and can control the water injection rate to salt box by being normally opened and closed regulating valve 160 i.e..
Regulating valve 160 is preferably solenoid valve.Specifically, it can be diaphragm electromagnetic valve, drive diaphragm using pressure itself
Opening and closing, electromagnetic coil pilot control.
As seen in figures 3-6, non-return valve 170 includes mouse cage grid 171 and the check ball 172 inside mouse cage grid 171,
Mouse cage grid 171 covers on the first valve seat 181 in first fluid channel 121, and check ball 172 can support under the pressure of fluid
It is connected to the first valve seat 181.Non-return valve 170 can be disposed horizontally or vertically, but can not be stood upside down, i.e., cannot be arranged to mouse cage grid
171 in the lower section of the first valve seat 181, because non-return valve 170 in this way cannot normally realize its return-stopping function.
In the present embodiment, non-return valve use mouse cage grid and check ball fit structure, but the present invention is not limited to
This, those skilled in the art can according to need selection other structures and realize the non-return valve.
Current-limiting apparatus is additionally provided in first port 111, current-limiting apparatus is used to flow into the stream of the fluid of first port 111
It measures constant.By the way that current-limiting apparatus is arranged, water can be filled the water by controlling the opening time control of solenoid valve, which is simply easy
Row, and can relatively accurately calculate water injection rate.
In the present embodiment, current-limiting apparatus is arranged to include constrictor 185 and reducing stent 186, and reducing stent 186 is mouse
Basket structure simultaneously covers on the second valve seat 182 in first port 111, and constrictor 185 is set to 186 inside of reducing stent and can
It moves in reducing stent 186 to abut or be detached from the second valve seat 182.Constrictor 185 is the elastic disk equipped with centre bore.
In control valve water filling, fluid is flowed into from first port 111, and the pressure being applied on constrictor 185 makes current limliting
Piece 185 moves towards the second valve seat 182 and is connected to the second valve seat 182 to be passed through so that fluid is only capable of passing through from centre bore
The metering function of constrictor 185, the flow for flowing into first port 111 is constant, in this way the opening by controlling to adjust valve 160
Time can relatively accurately control the water injection rate of salt box.
Certainly, those skilled in the art, which also can choose other, can realize the device for limiting constant flow rate.
Second port 112 be equipped with the fast inserting structure 190 of hose, the fast inserting structure 190 of hose include sealing ring 191, pressure cap 192,
Apical ring 193, pressure cap 192 are fixed on the inside of second port 112, and apical ring 193 is inserted into the inside of pressure cap 192, and sealing ring 191 is set to
The side of the opening of the separate second port 112 of apical ring 193.
As shown in fig. 6, ontology 101 includes the first end oral area 151 for being equipped with first port 111, equipped with second port 112
Second end oral area 152, the non-return valve mounting portion 153 equipped with non-return valve 170, the regulating valve mounting portion 154 equipped with regulating valve 160,
Second end oral area 152 is set to the opposite side of regulating valve mounting portion 154, and non-return valve mounting portion 153 is connected to 152 He of second end oral area
Position between regulating valve mounting portion 154, first end oral area 151 are arranged perpendicular to first end oral area 151.Setting in this way
It sets, so that the structure of control valve fitment 100 is more compact, and assembles simpler.
The present embodiment provides only a kind of preferred structure of ontology, but the present invention is not limited thereto, the skill of this field
Art personnel can according to need, and first end oral area, second end oral area, non-return valve mounting portion and regulating valve mounting portion is arbitrarily arranged
Relative positional relationship.
Ontology 101 can be integrated injection molding.Regulating valve 160 is fixed on ontology 101 by fastening structures such as screws
Regulating valve mounting portion 154.Non-return valve 170 is fixed to the inverse of ontology 101 by the gland 155 with sealing ring by non-return valve 170
Only valve mounting portion 153.Selectively, ontology is also possible to split type structure.
The control valve fitment 100 can be external in control valve, simplify the structure of control valve and for ease of maintenaince and production.
The present embodiment also provides a kind of water softening device.The water softening device includes salt box, control valve and control valve fitment as above
100, first port 111 is connected to control valve, and second port 112 is connected to salt box.
The water softening device uses external control valve fitment 100, reduces overall manufacturing cost.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is orientation based on the figure or position
Relationship is set, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore is not considered as limiting the invention, unless another in text
It is described.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
Under the premise of the principle and substance of the present invention, various changes or modifications can be made to these embodiments, but these changes and
Modification each falls within protection scope of the present invention.
Claims (10)
1. a kind of control valve fitment, characterized in that it comprises: ontology, regulating valve and non-return valve set on the body interior；
The ontology is equipped with first port, second port, first fluid channel and second fluid channel, the first fluid channel
And second fluid channel is connected between the first port and the second port；
The non-return valve is set in the first fluid channel and for preventing fluid in the first fluid channel from described
First port flows to the second port；
The regulating valve is set in the second fluid channel and flows through the fluid in the second fluid channel for adjusting
Total amount.
2. control valve fitment as described in claim 1, which is characterized in that the body interior is equipped with first chamber and the second chamber
Room, the first chamber and the second chamber are interconnected by the first opening and the second opening, and the first port is led to
The first chamber, the second port lead to the second chamber, regulating valve opening and closing first opening, the check
Valve opening and closing second opening；
The first fluid channel is from the second port via the second chamber, second opening, first chamber
Room to the channel of the first port, the second fluid channel are from the first port via the first chamber, described
First opening, the second chamber to the channel of the second port.
3. control valve fitment as described in claim 1, which is characterized in that the non-return valve includes mouse cage grid and is set to described
Check ball inside mouse cage grid, the mouse cage grill cover is set on the first valve seat in the first fluid channel, described inverse
Only ball can be connected to first valve seat under the pressure of fluid.
4. control valve fitment as described in claim 1, which is characterized in that the second port is equipped with the fast inserting structure of hose, institute
Stating the fast inserting structure of hose includes sealing ring, pressure cap, apical ring, and the pressure cap is fixed on the inside of the second port, the apical ring
It is inserted into the inside of the pressure cap, the sealing ring is set to the side of the opening far from the second port of the apical ring.
5. control valve fitment as described in claim 1, which is characterized in that the regulating valve is solenoid valve.
6. control valve fitment as claimed in claim 5, which is characterized in that be additionally provided with current-limiting apparatus, institute in the first port
The flow for stating fluid of the current-limiting apparatus for flowing into the first port is constant.
7. control valve fitment as claimed in claim 6, which is characterized in that the current-limiting apparatus includes constrictor and current limliting branch
Frame, the reducing stent are cage-shaped structure and cover on the second valve seat in the first port that the constrictor is set to institute
It states inside reducing stent and can be moved in the reducing stent to abut or be detached from second valve seat.
8. control valve fitment as claimed in claim 7, which is characterized in that the constrictor is the Elastic Circular equipped with centre bore
Piece.
9. control valve fitment as described in claim 1, which is characterized in that the ontology includes the equipped with the first port
One end oral area, the non-return valve mounting portion equipped with the non-return valve, is equipped with the tune at the second end oral area equipped with the second port
The regulating valve mounting portion of valve is saved, the second end oral area is set to the opposite side of the regulating valve mounting portion, the non-return valve installation
Portion is connected to the position between the second end oral area and the regulating valve mounting portion, and the first end oral area is perpendicular to described
The setting of one end oral area.
10. a kind of water softening device, which is characterized in that the water softening device includes salt box, control valve and any one of such as claim 1-9
The control valve fitment, the first port are connected to the control valve, and the second port is connected to the salt box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910399029.4A CN110440037B (en) | 2019-05-14 | 2019-05-14 | Control valve accessory and water softener comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910399029.4A CN110440037B (en) | 2019-05-14 | 2019-05-14 | Control valve accessory and water softener comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110440037A true CN110440037A (en) | 2019-11-12 |
| CN110440037B CN110440037B (en) | 2024-05-10 |
Family
ID=68428784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910399029.4A Active CN110440037B (en) | 2019-05-14 | 2019-05-14 | Control valve accessory and water softener comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110440037B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024092909A1 (en) * | 2022-11-03 | 2024-05-10 | 开能健康科技集团股份有限公司 | Ultralow-flow flow limiting device |
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| KR100745486B1 (en) * | 2006-11-20 | 2007-08-03 | 윤만실 | Constant flow control valve having a multi-function |
| KR101019723B1 (en) * | 2010-06-14 | 2011-03-07 | 김남용 | Flow adjusting valve |
| US20130105322A1 (en) * | 2011-10-27 | 2013-05-02 | David J. Averbeck | Control Valve Assembly |
| CN103899805A (en) * | 2014-04-23 | 2014-07-02 | 刘工勤 | Micro-force switch valve with backflow stopping function |
| CN103925392A (en) * | 2014-05-05 | 2014-07-16 | 上海开能环保设备股份有限公司 | Water treatment control valve |
| CN108350909A (en) * | 2015-10-28 | 2018-07-31 | Smc株式会社 | Control valve for fluids |
| CN109592799A (en) * | 2019-01-24 | 2019-04-09 | 开能健康科技集团股份有限公司 | Multi-way valve and water softening device containing it |
| CN209876056U (en) * | 2019-05-14 | 2019-12-31 | 开能健康科技集团股份有限公司 | Control valve accessory and water softener comprising same |
-
2019
- 2019-05-14 CN CN201910399029.4A patent/CN110440037B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100745486B1 (en) * | 2006-11-20 | 2007-08-03 | 윤만실 | Constant flow control valve having a multi-function |
| KR101019723B1 (en) * | 2010-06-14 | 2011-03-07 | 김남용 | Flow adjusting valve |
| US20130105322A1 (en) * | 2011-10-27 | 2013-05-02 | David J. Averbeck | Control Valve Assembly |
| CN103899805A (en) * | 2014-04-23 | 2014-07-02 | 刘工勤 | Micro-force switch valve with backflow stopping function |
| CN103925392A (en) * | 2014-05-05 | 2014-07-16 | 上海开能环保设备股份有限公司 | Water treatment control valve |
| CN108350909A (en) * | 2015-10-28 | 2018-07-31 | Smc株式会社 | Control valve for fluids |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024092909A1 (en) * | 2022-11-03 | 2024-05-10 | 开能健康科技集团股份有限公司 | Ultralow-flow flow limiting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110440037B (en) | 2024-05-10 |
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