KR101702508B1 - 8-way Flow Switching Valve Module Softeners - Google Patents
8-way Flow Switching Valve Module Softeners Download PDFInfo
- Publication number
- KR101702508B1 KR101702508B1 KR1020150094303A KR20150094303A KR101702508B1 KR 101702508 B1 KR101702508 B1 KR 101702508B1 KR 1020150094303 A KR1020150094303 A KR 1020150094303A KR 20150094303 A KR20150094303 A KR 20150094303A KR 101702508 B1 KR101702508 B1 KR 101702508B1
- Authority
- KR
- South Korea
- Prior art keywords
- water
- switching valve
- ceramic
- upper plate
- holes
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 186
- 238000007599 discharging Methods 0.000 claims abstract description 11
- 239000000919 ceramic Substances 0.000 claims description 78
- 230000008929 regeneration Effects 0.000 claims description 30
- 238000011069 regeneration method Methods 0.000 claims description 30
- 239000008234 soft water Substances 0.000 claims description 22
- 230000008676 import Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 7
- 230000001172 regenerating effect Effects 0.000 abstract description 8
- 238000005299 abrasion Methods 0.000 abstract description 4
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 11
- 239000011734 sodium Substances 0.000 description 8
- 239000003456 ion exchange resin Substances 0.000 description 6
- 229920003303 ion-exchange polymer Polymers 0.000 description 6
- 239000003729 cation exchange resin Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000002378 acidificating effect Effects 0.000 description 3
- 229910001415 sodium ion Inorganic materials 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000008233 hard water Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 208000017520 skin disease Diseases 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc 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
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/157—Flow control valves: Damping or calibrated passages
- B01D35/1573—Flow control valves
-
- 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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
-
- 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
- F16K27/04—Construction of housing; Use of materials therefor of sliding 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Water By Ion Exchange (AREA)
- Multiple-Way Valves (AREA)
Abstract
The present invention relates to an automatic regenerative braking system for a motor vehicle, which unifies the necessary flow path switching in an operation mode for an automatic regenerative braking function, and structurally prevents operational faults and damage due to abrasion, And a through hole for introducing or discharging a predetermined inflow water into a space between a switching valve case having a pipe connection port in eight directions and a switching valve cover in which a rotation guide is disposed, And an eighth-direction flow path switching valve module for a water softener.
Description
The present invention relates to an eight-way flow path switching valve module for a water softener, and more particularly, to a valve module capable of unifying all the flow paths required for an operation mode for automatic regeneration from soft water into one valve module, To an 8-way flow path switching valve module for a water softener capable of structurally preventing an operation failure due to abrasion or separation.
In general, tap water (hard water) contains a large amount of chlorine components used in the purification process. It also contains various heavy metals (ions) such as iron, zinc, lead, and mercury which are harmful to human body due to water pollution caused by factors such as aging pipes. .
Such tap water is not fatal to the human body, but if used intact, the metal ion contained in the water and the fatty acid of the soap are combined to form a metallic foreign substance on the user's skin. Such a metallic foreign matter causes various skin diseases such as allergy again It is known to be a direct cause of accelerated aging of the skin.
To prevent this, water softener is widely used for washing and cleaning by exchanging water hardness components Ca2 + and Mg2 + with Na + in a strong acidic cation exchange resin through a Na + type cation exchange resin.
Such a water softener is composed of a principle that calcium ions and magnesium ions contained in hard water are replaced with sodium ions (Na +). Therefore, the water softener is equipped with an ion exchange resin containing a special polymer compound containing sodium ions, And a regeneration vessel containing an ion exchange resin recycling material such as salt for sodium ion production.
That is, in the water softener, the water is continuously passed through the softener tube in contact with the ion exchange resin in a state where a large amount of fine ion exchange resin is stored in the softener tank.
At this time, since the Na + component is significantly reduced due to continuous contact with tap water, the ion exchange resin is required to maintain a predetermined regeneration process for the ion exchange resin, such as a salt water containing NaCl component, Is required.
In the conventional water softener, the water tub and the regenerator are connected to the water flow switching valve module and the pipe-type connection pipe through the water inlet, shower means, water tank outlet, and the like.
The channel switching valve module includes a channel switching upper plate and a channel switching lower plate inside a predetermined valve body so as to send raw water, soft water, regenerated water or the like to corresponding portions of the water softener, wherein the channel switching upper plate and the channel switching lower plate And the respective flow paths can be changed according to the rotation angle.
In the case of the channel-changing bend module, it is important to maintain tightness between the channel-switching upper plate and the channel-switching bottom plate due to a certain pressure. Generally, in order to maintain tightness between the channel- The manufacturing cost is increased and the problem of the increase in the overall volume of the flow path switching valve module can not be solved.
In addition, in the conventional channel switching valve module, another separate technical configuration is required to send or receive raw water, soft water, regenerated water, and the like to various parts of the water softener in various directions, It has a problem of being weighted.
(Hereinafter referred to as "prior art") such as those disclosed in Korean Patent Laid-Open Nos. 2011-0023544 (2011.03.08) and 2011-0023545 (2011.03.08) are disclosed.
The above-mentioned prior arts have no technical features such as simplifying a complicated design, but still have a limitation such as requiring a separate installation member for fixing the lower plate inside the valve module. It is merely an application of the flow grooves of the upper plate according to the six-way flow path switching in an arbitrary form.
Particularly, in the prior art, a technique of applying a ring of a certain thickness to the tightness between the channel switching upper plate and the channel switching lower plate is inevitable, and the performance deterioration due to wear can not be avoided.
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems of the prior art, and provides an eight-way flow path switching valve module for a water softener, which can simplify all the flow paths required for an operation mode for automatic regeneration from soft water to a single valve module.
It is another object of the present invention to provide an eight-way flow path switching valve module for a water softener capable of structurally preventing abrasion of components due to water hammer, as well as assuring operating air tightness between a ceramic upper plate and a lower plate for channel switching.
The eight-way flow path switching valve module for a water softener proposed by the present invention comprises a ceramic bottom plate provided with eight pipe connections on the bottom surface thereof and a plurality of flow holes connected to the pipe connection ports from the bottom surface thereof, And a switching valve case having a ceramic upper plate including a plurality of flow path connecting grooves connecting the plurality of flow path holes and a rotation guide for sequentially applying a rotational force to the ceramic upper plate from the drive motor outside the switching valve cover in each operation mode .
Particularly, the ceramic upper plate is provided with at least two through holes for introducing or discharging inflow water into the space between the switching valve cover and the ceramic upper plate in which the rotation guide is disposed.
Wherein the pipe connection port comprises first and second original import pipelines for introducing raw water from the water supply port and raw water flowing into the switch valve case from the first and second original import pipelines into a hot water tank, A first and a second soft water exporting port for introducing soft water or regenerated water from the hot water tank or the cold water tank into the switch valve case; And a discharge piping port for discharging the softened water or the regenerated water introduced into the switch valve case from the second softened water regeneration importing port.
And the flow hole of the lower ceramic plate may be in the form of a hole corresponding to an eight-direction pipe connection port formed on the bottom surface of the switching valve case, and the channel connection groove of the ceramic upper plate may be formed in the flow hole of the ceramic bottom plate The shape of the recessed groove corresponding to the predetermined depth, and the like.
In addition, the ceramic upper plate may be variously configured to switch the operation mode to the training mode, the regeneration intake mode, the stop mode, the rinse mode, and the regeneration outgoing mode according to the degree of rotation of the rotation guide with respect to the lower ceramic plate. can do.
Further, the switching valve cover may be integrally provided with the motor housing of the driving motor. At this time, the outer surface of the switching valve cover can be variously formed with a motor gear mounted on a shaft of the driving motor and a main gear mounted on a shaft of the rotating guide.
According to the eight-way flow path switching valve module for a water softener according to the embodiment of the present invention, eight directional pipe connecting ports are provided on the bottom outer surface of the switching valve case to enable operation modes for automatic regeneration from soft water, The technical effect of unifying all the channel switching necessary for rinse and regeneration heading into one valve module is obtained.
According to the eight-way flow path switching valve module for a water softener according to the embodiment of the present invention, a predetermined through-hole is formed in the ceramic upper plate so that the space between the ceramic upper plate and the switching valve cover, It is possible to perform the function as a buffer space for attenuating the water hammer at the time of the intake as well as to secure the function as the predetermined channel space for guiding the corresponding water to the regenerator in the regenerating / So that the entire volume of the switching valve module can be reduced.
In particular, utilization of the space between the switching valve cover in which the rotation guide is disposed and the ceramic upper plate as a buffer space for water hampering structurally prevents abrasion between the ceramic upper plate and the lower plate, And technological effects such as drastically improving the age can be expected.
Furthermore, according to the eight-way flow path switching valve module for a water softener according to the embodiment of the present invention, since the motor housing of the driving motor is integrally provided on the switching valve cover, Thereby realizing a technological effect such as realizing a compact technical structure through the combination of the above.
1 is a schematic view showing an eight-way flow path switching valve module for a water softener according to an embodiment of the present invention.
Fig. 2 is a schematic diagram showing a technical configuration of an 8-way flow path switching valve module for a water softener in an exploded state according to an embodiment of the present invention.
3 is a view showing an operating state and a flow path relationship between a ceramic upper plate and a ceramic lower plate in a training mode in an 8-way flow path switching valve module for a water softener according to an embodiment of the present invention.
4 is a view showing an operating state and a flow path relationship between a ceramic upper plate and a ceramic lower plate in a regenerating / receiving mode in an 8-way flow path switching valve module for a water softener according to an embodiment of the present invention.
5 is a schematic view showing an operating relationship between a ceramic upper plate and a ceramic lower plate for each operation mode of an 8-way flow path switching valve module for a water softener according to an embodiment of the present invention.
6 is a schematic view showing a ceramic upper plate of an 8-way flow path switching valve module for a water softener according to an embodiment of the present invention.
7 is a view showing an automatic training system using an 8-way flow path switching valve module for a water softener according to an embodiment of the present invention.
First, the reference numerals in each drawing are divided according to their degree of relevance so that the relationship among the components can be easily grasped, and the same serial number is applied to a certain degree of relevance.
Although the term used in this application has been described in terms of a specific embodiment only in order to facilitate understanding of the eight-way flow path switching valve module for a water softener according to the present invention, the intention is to limit the technical idea of the present invention itself from such an embodiment Or not.
The singular forms "a", "an," and "the" include plural referents unless the context clearly dictates otherwise.
It is also to be understood that the terms such as " comprising "or" comprising "in this application are intended to specify the presence of stated features, integers, It is not intended to preclude the presence or addition of features, numbers, steps, operations, components, parts, or combinations thereof in any manner whatsoever.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the technical structure of an eight-way flow path switching valve module for a water softener according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
As shown in FIG. 7, the eight-way flow path switching valve module for a water softener according to the embodiment of the present invention includes a
Accordingly, the 8-way flow path switching valve module for the water softener according to the embodiment of the present invention is installed in the
More specifically, the
On the inner surface of the switching
The ceramic
The
That is, the ceramic
The flow
Here, the soft water mode is a mode in which the cold water and the hot water flowing in the water collecting port are transferred to the
The termination mode means that the concentration of the regeneration water in the regeneration tank 13 is adjusted to a concentration required for regeneration of the Na + -type strongly acidic cation exchange resin in the
The regeneration outgoing mode is a mode in which the regenerated water in the regeneration tank 13 is passed through the
The rinse mode removes the remainder of the regenerated water passing through the
The eight-way flow path switching valve module for a water softener according to the embodiment of the present invention includes predetermined through
The through
The through
4, the through-
At least one of the through
Further, the remaining of the through
The
At this time, on the outer surface of the switching
The
For example, the first and second
The raw water which is hot water or cold water flowing into the switching
In the case of the first and second soft water
The
The channel holes 40 of the lower
The first and second raw water inlet /
The regenerating and recycling
It is preferable that the soft water replenishing water intake and
The
The first and second raw water inlet and
The regenerated water discharging
At this time, it is preferable that the length of the single straight line forming the X-character is formed in such a manner that a plurality of the above-mentioned soft water replenishment water receiving and discharging
The eight-way flow path switching valve module for a water softener according to the embodiment of the present invention includes an operation mode for automatic regeneration from the water pipe from the
10: Switching valve case 20: Piping connector
21a: 1st source of
22a:
22c: Third
23b: second training regeneration import section 24: discharge piping section
30: ceramic bottom plate 40:
41a: first raw water inlet /
42: Recycled water recycled water recycled 43: Recycled water recycled water Recycled water
50: ceramic
60:
61b: second raw water inlet / outlet coupling groove 62: regenerated water discharge coupling groove
70: rotation guide 71: main gear
80: Switching valve cover 81: Motor housing
90: drive motor 91: motor gear
110: cold water tank 120: hot water tank
130:
Claims (8)
Wherein the ceramic upper plate further includes at least two through holes for introducing or discharging inflow water into the space between the switching valve cover and the ceramic upper plate in which the rotation guide is disposed,
At least one of the through holes of the ceramic upper plate is provided in a groove for connecting the cold water side raw water flowing into the switching valve case from the water inlet of the channel connecting grooves of the ceramic upper plate, Wherein the valve body is provided so as to be able to face the passage hole of the lower ceramic plate passing through the cold water side raw water flowing into the switching valve case from the water inlet.
First and second raw import instructions for inputting raw water from a water outlet;
First, second and third original export pipes for transferring the raw water, which is hot water or cold water, flowing into the switching valve case from the first and second original import pipelines to the hot water tank, the cold water tank or the regenerator;
First and second soft water recharge importing ports for introducing soft water or regenerated water from the hot water tank or the cold water tank into the switch valve case;
And a discharge piping port for discharging the softened water or the regenerated water introduced into the switching valve case from the first and second softened water regeneration importing ports.
Wherein the flow hole of the lower ceramic plate is in the form of a hole corresponding to the pipe connection port,
First and second raw water inlet / outlet holes formed on both sides of the left and right symmetrical edges with respect to a virtual diameter dividing the bottom ceramic plate into left and right sides;
A regeneration importing water pipe arranged so as to be connected to a piping connection port for passing the raw water, which is cold water introduced from the water supply pipe, to the regeneration pipe;
And a plurality of holes in the form of a plurality of holes arranged in a line along a virtual diameter dividing the lower ceramic plate into two parts along the center line of the ceramic lower plate and between the first and second raw water inlet / 8 Directional Flow Switching Valve Module for Water Softener.
The channel connecting grooves of the ceramic upper plate are in the form of recesses corresponding to the channel holes of the lower ceramic plate,
The first and second raw water inlet and outlet holes are respectively curved in the form of parentheses on both sides of the left and right sides symmetrical with respect to the imaginary diameter dividing the ceramic upper plate into two parts corresponding to the first and second raw water inlet and outlet holes, ;
And an X-shaped soft water discharge water discharge joint groove disposed between the first and second raw water inlet / outlet grooves along the center line of the ceramic upper plate.
Way flow path switching valve for the water softener, which can switch the operation mode to the training mode, the regeneration intake mode, the stop mode, the rinse mode, and the regeneration outgoing mode according to the degree of rotation of the rotation guide with respect to the lower ceramic plate, module.
Wherein the switching valve cover is integrally provided with a motor housing of the driving motor.
Wherein the switching valve cover includes a motor gear mounted on a shaft of the drive motor and a main gear mounted on a shaft of the rotation guide on an outer surface thereof.
Priority Applications (1)
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KR1020150094303A KR101702508B1 (en) | 2015-07-01 | 2015-07-01 | 8-way Flow Switching Valve Module Softeners |
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KR1020150094303A KR101702508B1 (en) | 2015-07-01 | 2015-07-01 | 8-way Flow Switching Valve Module Softeners |
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KR101702508B1 true KR101702508B1 (en) | 2017-02-03 |
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KR1020150094303A KR101702508B1 (en) | 2015-07-01 | 2015-07-01 | 8-way Flow Switching Valve Module Softeners |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110578815B (en) * | 2019-10-08 | 2024-08-20 | 常州海沃尔环保科技有限公司 | Multifunctional valve and water treatment device using same |
CN114215930B (en) * | 2021-12-20 | 2024-06-11 | 海南核电有限公司 | Pipeline valve |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100821367B1 (en) * | 2006-12-22 | 2008-04-11 | 웅진코웨이주식회사 | Valve for controlling temperature of water and water softener having thereof |
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KR20110023545A (en) * | 2009-08-31 | 2011-03-08 | 웅진코웨이주식회사 | 6-way vlave module used in soft water apparatus |
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Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100821367B1 (en) * | 2006-12-22 | 2008-04-11 | 웅진코웨이주식회사 | Valve for controlling temperature of water and water softener having thereof |
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