CN104565450B - A kind of multi-purpose valve device - Google Patents
A kind of multi-purpose valve device Download PDFInfo
- Publication number
- CN104565450B CN104565450B CN201510018876.3A CN201510018876A CN104565450B CN 104565450 B CN104565450 B CN 104565450B CN 201510018876 A CN201510018876 A CN 201510018876A CN 104565450 B CN104565450 B CN 104565450B
- Authority
- CN
- China
- Prior art keywords
- valve body
- spool
- outlet
- import
- helicla flute
- 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.)
- Expired - Fee Related
Links
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
- 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
- F16K11/072—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 pivoted closure members
- F16K11/076—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 pivoted closure members with sealing faces shaped as surfaces of solids of revolution
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—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
- F16K49/00—Means in or on valves for heating or cooling
- F16K49/002—Electric heating means
Abstract
A kind of multi-purpose valve device is provided, there is valve body and spool, described valve body is provided with valve body seam and fits tightly with spool outer cone surface, described spool is pressed in valve body seam by cartridge cover and sealing gasket, it is located at the bar bottom spool through being located at the hole of body base and stretching out outside valve body, described bar is provided with spring and nut and the threaded engagement holddown spring on bar, described valve body one end is provided with multiple import and the other end is provided with multiple outlet, it is equipped with filter in described import, described each import is all connected with source of solvent or source of the gas by pipe joint and connecting tube, described each outlet is all connected with faucet or helicla flute shower nozzle by pipe joint I and connecting tube I.The present invention by using the outlet of one or more imports and one or more different size in spool bore connection valve body to control the liquid inventory needed, have simple in construction, easy to operate, make people control usage amount and the advantage such as economize on resources more accurately.
Description
Technical field
Valve kind manufacturing technology field of the present invention, is specifically related to a kind of multi-purpose valve device.
Background technology
Along with the development of society, water resource just seems more and more important, particularly at our freshwater resources not
In the abundantest country, using water wisely has become the major issue that people are extremely concerned about.It is currently used for pipeline-like water valve, is no matter
Domestic or enterprise, known be all to be made up of single inlet and outlet, the flow that particularly water flows out from outlet
Size can only be twisted gate out switch by people with sensation hands and be controlled, and the most can accurately not control the flow of outlet, more can not
Well accomplish using water wisely, it is therefore necessary to propose to improve.
Summary of the invention
Present invention solves the technical problem that: a kind of multi-purpose valve device is provided, by be provided with in one end of valve body multiple enter
Mouthful and be provided with the outlet of multiple different size at the other end of valve body, with the spool bore connection being located in spool one or more enter
The outlet of mouth and one or more different sizes controls the liquid inventory needed, and this apparatus structure is simple, easy to operate, can
Make people control solution usage more accurately, can economize on resources again.
The technical solution used in the present invention: a kind of multi-purpose valve device, has valve body and spool, and described valve inner is provided with
Valve body seam and its inner surface are cone, and described valve core outer surface is conical and tight with the female cone surface of valve body seam
Laminating, described valve body seam top is shaped with on the inner cylinder face of terrace with edge and terrace with edge the screw thread being shaped with screwing with cartridge cover, described
It is shaped with top wire hole and jackscrew in cartridge cover to screw in the middle of the outer cone surface holding out against spool, described cartridge cover and spool with top wire hole
It is provided with sealing gasket, is located at its one end bottom spool and is shaped with the bar of screw thread through being located at the hole of body base and stretching out outside valve body, institute
Stating bar and be provided with spring and nut and the threaded engagement holddown spring on bar, described valve body one end is provided with multiple import and the other end
It is provided with multiple outlet, is all shaped with the screw thread screwed with pipe joint in each import described, is all shaped with and manages in each outlet described
The screw thread that joint I screws, is all shaped with inside described import inside groove I and groove I and is equipped with filter, and described each import is the most logical
Cross pipe joint and connecting tube to be connected with source of solvent or source of the gas, described each outlet all by pipe joint I and connecting tube I and faucet or
Helicla flute shower nozzle connects.
Wherein, described valve body one side is provided with booster bore, described booster bore one end and valve body seam inner space, institute
Stating the booster bore other end and be provided with supercharger, described valve body another side is provided with in return port and return port one end and valve body seam
Chamber connects, and is provided with groove II, described body top and valve body seam periphery and is provided with gear bottom described valve body seam.
Further, described valve body one end is provided with multiple import, and each import described is arranged in horizontal parallel each other
And all leave >=the sealed gap of 5mm between each import, the described valve body other end is provided with >=outlet of 2 different sizes and each
Mutually arrangement or zoning arrangement triangular in shape in horizontal parallel between outlet, all leave >=the sealing of 5mm between described each outlet
Spacing.
Wherein, described spool top is provided with the Valve core handle in 90 ° of bendings, described Valve core handle one end through cartridge cover and
Sealing gasket and being connected with spool top center, described valve core inside is provided with spool bore and spool bore inner surface for cone, described
One or more imports of spool bore connection valve body and the outlet of one or more different size make multi-purpose valve be in and open shape
State, on described spool, side is provided with multiple backflash being parallel to each other and backflash one end all connects with spool bore, described spool
Upper side is provided with >=2 backflashes being parallel to each other, and described spool top perimeter is provided with gear.
Further, described helicla flute shower nozzle includes helicla flute nozzle boss and helicla flute nozzle cap, described helicla flute shower nozzle
Seat be diameter >=20mm, thickness be the rustless steel cylinder of 3mm, described helicla flute nozzle boss end face is provided with helicla flute and spiral shell
Spin slot is helical groove, and described helical groove bottom even is shaped with multiple hole, a diameter of 0.3mm～0.5mm of described water
Between, the side of described helicla flute nozzle cap is shaped with the screwed hole screwed with connecting tube I.
Further, described pipe joint is multiple way union, and described pipe joint I is multiple way union, logical outside described outlet
Cross multiple way union and connecting tube I adds electric heater.
Present invention advantage compared with prior art:
1, the present invention by being provided with multiple import and being provided with multiple different size at the other end of valve body in one end of valve body
Outlet, with the spool bore connection being located in spool or close going out of one or more import and one or more different size
Mouthful, and the different outlet of specification can discharge solution or the gas of different flow, effectively controls flow, this apparatus structure is simple, behaviour
Facilitate, people can be made to control solution usage more accurately, can economize on resources again；
2, the present invention does not reduces pressure in using helicla flute shower nozzle and outlet connecting pipe, plays the large-area effect of low discharge；
When 3, opening big specification outlet outflow solution, make taphole area strengthen, improve liquid inventory, save time and save
Power；
4, when multi-purpose valve is closed, likely can there be solution stream in each outlet and not go out, particularly run into
Winter can be at outlet inner icing, and blocking multi-purpose valve outlet, the present invention uses and sets backflash in spool and in valve body side
Open return port and set supercharger at opposite side, making the solution in existence outlet automatically flow out valve body along backflash and return port
Outward, it is also possible to supercharger is blown remaining solution blowout in valve body, effectively prevents valve outlet in winter from freezing；
5, long-term switch multi-purpose valve can make spool outer cone surface abrasion can not fit tightly with valve body seam, valve body
Leakage occurs, uses the spring force below valve body to act on spool and spool abrasion is carried out self-complementary, effectively prevent because of length
The problem that phase uses valve body leakage；
6, outside outlet, add electric heater, water can be made quickly to heat, meet the different demands of people；
7, use in import, be provided with filter, can effective filter sewage resource, purify water, make wastewater ocean disposal；
8, outlet can be exchanged with import and use by the present invention, can be entered also by the import of different size by different solution
At large outlet, mixing is flowed out, and provides convenient for proportioning solution and control different solutions amount.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram；
Fig. 2 is valve body structure schematic diagram；
Fig. 3 is valve core structure schematic diagram；
Fig. 4 is helicla flute nozzle structure schematic diagram；
Fig. 5 is valve inleting water mouth one layout viewing；
Fig. 6 is valve body outlet one layout viewing.
Detailed description of the invention
1-6 describes embodiments of the invention below in conjunction with the accompanying drawings.
A kind of multi-purpose valve device, has valve body 1 and spool 2, and described valve body 1 is internal is provided with valve body seam 3 and table in it
Face is cone, and described spool 2 outer surface is that conical and with valve body seam 3 female cone surface fits tightly, described valve body
Seam 3 top is shaped with and is shaped with the screw thread screwed with cartridge cover 23 on the inner cylinder face of terrace with edge 7 and terrace with edge 7, in described cartridge cover 23
It is shaped with top wire hole and jackscrew 22 and screws, with top wire hole, the outer cone surface holding out against spool 2, set in the middle of described cartridge cover 23 and spool 2
Having sealing gasket 24, described spool 2 top to be provided with the Valve core handle 14 in 90 ° of bendings, described Valve core handle 14 one end passes spool
Lid 23 and sealing gasket 24 and being connected with spool 2 top center, is provided with spool bore 13 and spool bore 13 inner surface inside described spool 2
For cone, on described spool 2 side be provided with multiple backflash 16 being parallel to each other and backflash 16 one end all with spool bore 13
Connection, on described spool 2, side is provided with >=2 backflashes being parallel to each other 16, and described spool 2 top perimeter is provided with gear 18；
Wherein, it is located at its one end bottom spool 2 and is shaped with the bar 15 of screw thread through being located at the hole 9 bottom valve body 1 and stretching out outside valve body 1, institute
State bar 15 and be provided with spring 19 and nut 20 and the threaded engagement holddown spring 19 on bar 15, when long-term switch multi-purpose valve can make
Spool 2 outer cone surface abrasion and can not fit tightly with valve body seam 3, multi-purpose valve arises that leakage, now uses valve
The abrasion that the elastic force of body 1 spring 19 below acts on spool 2 spool 2 carries out self-complementary, makes spool 2 outer cone surface valve body
Seam 3 fits tightly, and effectively prevent because of the problem of life-time service multi-purpose valve leakage.
Described valve body 1 one end is shaped with multiple import 4 and the other end is shaped with the outlet 5 of multiple different size, and described each enters
All it is shaped with the screw thread screwed with pipe joint 26 in mouth 4, in each outlet 5 described, is all shaped with the screw thread screwed with pipe joint I28, institute
The outlet 5 stating one or more imports 4 and one or more different size that spool bore 13 connects valve body 1 makes multi-purpose valve be in
Opening state, described valve body 1 one end is provided with multiple import 4, and each import 4 described is arranged in horizontal parallel each other and respectively enters
All leave >=the sealed gap of 5mm between mouthfuls 4, described valve body 1 other end is provided with >=outlet 5 of 2 different sizes and each go out
Mutually arrange or zoning arrangement triangular in shape (as shown in Fig. 2, Fig. 6) in horizontal parallel between mouth 5, between described each outlet 5 all
Leaving >=the sealed gap of 5mm, wherein, the spool bore 13 being located in spool 2 connects or closes one or more import 4 and one
Or the outlet 5 of multiple different size, and the different outlet 5 of specification can discharge the solution of different flow, effectively controls flow, this
Apparatus structure is simple, easy to operate, people can be made to control solution usage more accurately, can economize on resources again, and when opening
When logical big specification exports 5, make liquid inventory area strengthen, improve liquid inventory, save time and laborsaving.Described import 4 is internal all makes
Fluted I 6 and the internal filter 21 that is equipped with of groove I 6, use in import 4, add filter 21, can effectively provide by filter sewage
Source, purifies water, and makes wastewater ocean disposal；Described valve body 1 one side is provided with booster bore 11, described booster bore 11 one end with
Valve body seam 3 inner space, described booster bore 11 other end is provided with supercharger 12, and described valve body 1 another side is provided with backflow
Hole 10 and return port 10 one end and valve body seam 3 inner space, wherein, the quantity of the backflash 16 spool 2 within and valve body 1 one
The quantity of the outlet 5 of end is identical, when multiplex painting valve is closed, and the backflash 16 within spool 2 and the outlet of valve body 1
5 corresponding connections, this structure can make the hydrops being stored in outlet 5 automatically flow out outside valve body 1, also along backflash 16 and return port 10
Available supercharger 12 will remain in the solution blowout in outlet 5 toward air blowing in valve body 1, effectively prevent from winter from exporting 5 icings；Described
It is provided with groove II 8, described valve body 1 top and valve body seam 3 periphery bottom valve body seam 3 and is provided with gear 17.
Described each import 4 is all connected with source of solvent or source of the gas by pipe joint 26 and connecting tube 25, and described each outlet 5 is the most logical
Crossing pipe joint I28 and connecting tube I29 to be connected with faucet 27 or helicla flute shower nozzle 31, wherein, described helicla flute shower nozzle includes spiral shell
Spin slot nozzle boss 31 and helicla flute nozzle cap 32, described helicla flute nozzle boss 31 be diameter >=20mm, thickness be the rustless steel of 3mm
Cylinder, described helicla flute nozzle boss 31 end face is provided with helicla flute 33 and helicla flute 33 is helical groove, described spiral
Shape bottom portion of groove is uniformly shaped with multiple water hole 34, and between a diameter of 0.3mm～0.5mm in described water hole 34, described helicla flute sprays
The side of skull 32 is shaped with the screwed hole (as shown in Figure 4) screwed with connecting tube 29, this time uses helicla flute shower nozzle to make outside outlet 5
Connecting tube in do not reduce pressure, play the large-area effect of low discharge；Described pipe joint 26 is two logical, threeway or multiple way unions,
Described pipe joint I28 is two logical, threeway or multiple way unions, and described outlet 5 is outer to be added by multiple way union and connecting tube I29
Electric heater 30, can make water quickly heat, and meets the different demands of people.It addition, outlet 5 can be exchanged by the present invention with import 4
Use, different solution can be entered by the import of different size and mixing is flowed out, for proportioning solution and control at large outlet
Different solutions amount processed provides convenient.
By multi-purpose valve as a example by the opening and close of water pipe, in using, open multi-purpose valve, outside the import 4 of valve body 1
By water pump and connecting tube 25 by water at water source suction import 4, as required water consumption number and the regulation of water flow velocity speed
Gear 17 on valve body 1 and the gear 18 on spool 2 make it corresponding, make the spool bore 13 in spool 2 connect corresponding one
Or multiple imports 4 and the outlet 5 of one or more different size, water along the import 4 opened by spool bore 13 from opening
The outlet 5 of logical different size is flowed out, and through connecting tube I29 flow out from faucet 27 or enters after electric heater 30 heats from
Helicla flute shower nozzle 31 sprays, for people to use；When stopping using, close multi-purpose valve, now backflash in valve body 2 16 with
The corresponding connection of the outlet 5 of valve body 1, can make the hydrops being stored in outlet 5 automatically flow out valve body 1 along backflash 16 and return port 10
Outward, it is also possible to supercharger 12 is blown remaining hydrops blowout in valve body 1, prevents from winter from exporting 5 icings.The present invention uses valve
Spool bore 13 in core 2 connects the solution that the outlet 5 of one or more import 4 and one or more different size controls to need
Flow, has simple in construction, control solution usage easy to operate, accurate and the advantage economized on resources.
Above-described embodiment, simply presently preferred embodiments of the present invention, not be used for limiting the scope of the present invention, therefore all with this
The equivalence change that content described in invention claim is done, within all should being included in scope of the invention as claimed.
Claims (6)
1. a multi-purpose valve device, has valve body (1) and spool (2), it is characterised in that: described valve body (1) is internal is provided with valve
Body seam (3) and its inner surface are cone, and described spool (2) outer surface is cone and the female cone with valve body seam (3)
Surface fits tightly, and described valve body seam (3) top is shaped with on the inner cylinder face of terrace with edge (7) and terrace with edge (7) and is shaped with and cartridge cover
(23) screw thread screwed, described cartridge cover (23) is shaped with top wire hole and jackscrew (22) and top wire hole screws and holds out against spool (2)
Outer cone surface, is provided with sealing gasket (24) in the middle of described cartridge cover (23) and spool (2), is located at its one end system of spool (2) bottom
Threaded bar (15) is through being located at the hole (9) of valve body (1) bottom and stretching out valve body (1) outward, and described bar (15) is provided with spring
(19) the threaded engagement holddown spring (19) and on nut (20) and bar (15), described valve body (1) one end is provided with multiple import (4)
And the other end is provided with multiple outlet (5), in described each import (4), be all shaped with the screw thread screwed with pipe joint (26), described respectively
All being shaped with the screw thread screwed with pipe joint I (28) in individual outlet (5), described import (4) is internal is all shaped with groove I (6) and groove I
(6) inside is equipped with filter (21), and described each import (4) is all by pipe joint (26) and connecting tube (25) and source of solvent or gas
Source connects, and described each outlet (5) is all connected with faucet (27) or helicla flute shower nozzle by pipe joint I (28) and connecting tube I (29)
Connect.
Multi-purpose valve device the most according to claim 1, it is characterised in that: described valve body (1) one side is provided with supercharger
Hole (11), described booster bore (11) one end and valve body seam (3) inner space, described booster bore (11) other end is provided with increasing
Depressor (12), described valve body (1) another side is provided with return port (10) and return port (10) one end with valve body seam (3) inner chamber even
Logical, described valve body seam (3) bottom is provided with groove II (8), described valve body (1) top and valve body seam (3) periphery and is provided with gear
(17)。
Multi-purpose valve device the most according to claim 1 and 2, it is characterised in that: described valve body (1) one end be provided with multiple enter
Mouthful (4), described each import (4) all leaves between arrangement and each import (4) in horizontal parallel each other >=sealing of 5mm between
Away from, described valve body (1) other end be provided with >=between the outlet (5) of 2 different sizes and each outlet (5) mutually in horizontal parallel
Arrangement or zoning arrangement triangular in shape, all leave >=the sealed gap of 5mm between described each outlet (5).
Multi-purpose valve device the most according to claim 3, it is characterised in that: described spool (2) top is provided with in 90 ° of bendings
Valve core handle (14), described Valve core handle (14) one end through cartridge cover (23) and sealing gasket (24) and with spool (2) top
Center connects, and internal spool bore (13) and spool bore (13) inner surface of being provided with of described spool (2) is for cone, described spool bore
(13) one or more imports (4) of connection valve body (1) and the outlet (5) of one or more different size make multi-purpose valve be in
Opening state, the upper side of described spool (2) is provided with multiple backflash (16) being parallel to each other and backflash (16) one end is equal and valve
Core bore (13) connects, and the upper side of described spool (2) is provided with >=2 backflashes being parallel to each other (16), described spool (2) top week
While be provided with gear (18).
Multi-purpose valve device the most according to claim 4, it is characterised in that: described helicla flute shower nozzle includes helicla flute shower nozzle
Seat (31) and helicla flute nozzle cap (32), described helicla flute nozzle boss (31) be diameter >=20mm, thickness be that the rustless steel of 3mm is justified
Cylinder, described helicla flute nozzle boss (31) end face is provided with helicla flute (33) and helicla flute (33) is helical groove, described
Helical groove bottom even is shaped with multiple hole (34), between a diameter of 0.3mm～0.5mm of described hole (34), and described spiral
The side of groove nozzle cap (32) is shaped with the screwed hole screwed with connecting tube I (29).
Multi-purpose valve device the most according to claim 5, it is characterised in that: described pipe joint (26) is multiple way union,
Described pipe joint I (28) is multiple way union, and described outlet (5) is added electricity added by multiple way union and connecting tube I (29) outward
Hot device (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510018876.3A CN104565450B (en) | 2015-01-14 | 2015-01-14 | A kind of multi-purpose valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510018876.3A CN104565450B (en) | 2015-01-14 | 2015-01-14 | A kind of multi-purpose valve device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104565450A CN104565450A (en) | 2015-04-29 |
| CN104565450B true CN104565450B (en) | 2016-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510018876.3A Expired - Fee Related CN104565450B (en) | 2015-01-14 | 2015-01-14 | A kind of multi-purpose valve device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104565450B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578621B (en) * | 2018-12-20 | 2023-07-28 | 江苏新苏承环保设备有限公司 | RTO pneumatic rotary valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2477910Y (en) * | 2001-03-01 | 2002-02-20 | 李玉国 | Single double flow water saving tap |
| DE202006019662U1 (en) * | 2006-12-22 | 2007-03-08 | Sellentin, Alexander | Mixing valve for fluids has valve chamber enclosing valve housing whereby mixing proportion between both fluids is adjustable over accurate rotational position of valve body relative to valve housing |
| JP2008025632A (en) * | 2006-07-18 | 2008-02-07 | Inax Corp | Combination faucet |
| CN203797042U (en) * | 2014-03-22 | 2014-08-27 | 广东长青（集团）股份有限公司 | Dual-gas-outlet-passage gas valve |
| CN204420198U (en) * | 2015-01-14 | 2015-06-24 | 黄卫科 | A kind of multi-purpose valve device |
-
2015
- 2015-01-14 CN CN201510018876.3A patent/CN104565450B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2477910Y (en) * | 2001-03-01 | 2002-02-20 | 李玉国 | Single double flow water saving tap |
| JP2008025632A (en) * | 2006-07-18 | 2008-02-07 | Inax Corp | Combination faucet |
| DE202006019662U1 (en) * | 2006-12-22 | 2007-03-08 | Sellentin, Alexander | Mixing valve for fluids has valve chamber enclosing valve housing whereby mixing proportion between both fluids is adjustable over accurate rotational position of valve body relative to valve housing |
| CN203797042U (en) * | 2014-03-22 | 2014-08-27 | 广东长青（集团）股份有限公司 | Dual-gas-outlet-passage gas valve |
| CN204420198U (en) * | 2015-01-14 | 2015-06-24 | 黄卫科 | A kind of multi-purpose valve device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104565450A (en) | 2015-04-29 |
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