CN106996461A - The double eccentric flange butterfly valves of Fluorine-lined - Google Patents
The double eccentric flange butterfly valves of Fluorine-lined Download PDFInfo
- Publication number
- CN106996461A CN106996461A CN201710421891.1A CN201710421891A CN106996461A CN 106996461 A CN106996461 A CN 106996461A CN 201710421891 A CN201710421891 A CN 201710421891A CN 106996461 A CN106996461 A CN 106996461A
- Authority
- CN
- China
- Prior art keywords
- fluorine
- lined
- sealing
- layer
- lined layer
- 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
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
- 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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
-
- 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
-
- 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
- F16K1/42—Valve seats
-
- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/023—Spindle sealings with stuffing-box ; Sealing rings for spindles which only rotate, i.e. non-rising spindles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
A kind of double eccentric flange butterfly valves of Fluorine-lined.Existing butterfly valve is solved without double eccentric fluorine lining butterfly valves, and common fluorine lining butterfly valve seals insecure problem.It includes valve seat, butterfly plate and valve body, described valve seat is provided with the first Fluorine-lined layer, the second Fluorine-lined layer is arranged with outside described butterfly plate, the inwall of the valve body is provided with the 3rd Fluorine-lined layer, described the first Fluorine-lined layer includes the first limiting section, first inclined plane part and the first sealing, first connecting portion is provided between the first described inclined plane part and the first sealing, described the second Fluorine-lined layer is provided with the second inclined plane part and second connecting portion, described the first Fluorine-lined layer, second Fluorine-lined layer and packing seal element are engaged to form cavity, described the 3rd Fluorine-lined layer is provided with the second sealing being adapted with the first sealing, described the first sealing and the second sealing is L-shaped.The present invention also has simple in construction, easy to assembly, reliable in action, the advantages of service life is long.
Description
Technical field
The present invention relates to a kind of valve, and in particular to a kind of double eccentric flange butterfly valves of Fluorine-lined.
Background technology
Butterfly valve is called flap valve, is a kind of regulating valve simple in construction, and the switch available for low pressure pipeline medium is controlled.Butterfly
Valve refers to that closure member flap or butterfly plate are disk, a kind of valve of open and close is reached around valve shaft rotation, valve can be used for
The all kinds fluids such as the empty gas and water of control, steam, various Korrosionsmediums, mud, oil product, liquid metal and radiating medium
Flowing, it is main on pipeline to play cut-out and throttling action.It is rotten in conveyings such as weight chemical industry, large chemical fertilizer, petroleum and petrochemical industry, smelting iron and steels
The occasion of corrosion fluid media (medium), metal valve are because can be corroded, it is clear that can not use, therefore in this kind of occasion, generally need
Use corrosion-resistant plastic lining valve.Existing Butterfly valve with liner causes at body base due to being sealed corrosion barrier
Product hermeticity can be poor, and existing common practice is to increase a sealing shroud or seal, but the seal due to
Angle and reasons in structure are set so that axially refer to the axial direction of butterfly valve rotating shaft, it is similarly hereinafter not high with radial pressure so that production
Product sealing is unreliable, and life test can only be to 10,000 times or so, and product will have leakage, and product service life is short.Double bias
Butterfly valve butterfly plate center had both been deviateed due to valve rod axle center, body central is also offset from so that difficulty is high during lining, and is sealed after Fluorine-lined
Unreliable easy leakage.
The content of the invention
To solve the no double eccentric fluorine lining butterfly valves of existing butterfly valve in background technology, and common fluorine lining butterfly valve sealing can not
By the problem of, the present invention provides a kind of Fluorine-lined double eccentric flange butterfly valves.
The technical scheme is that：A kind of double eccentric flange butterfly valves of Fluorine-lined, including valve seat, butterfly plate and valve body, it is described
Valve body is provided with medium channel, and described butterfly plate is provided with valve rod, the center of the center deviation butterfly plate of the valve rod and valve body
Center, is provided with packing seal element, described valve seat is provided with the first Fluorine-lined layer, described butterfly plate between described valve rod and valve body
Outer to be arranged with the second Fluorine-lined layer, the inwall of the valve body is provided with the 3rd Fluorine-lined layer, and described the first Fluorine-lined layer includes L-shaped
First limiting section, for mutually sealed first inclined plane part of butterfly plate and for mutually sealed first sealing of butterfly plate, it is described
First connecting portion is provided between first inclined plane part and the first sealing, described the second Fluorine-lined layer is provided with and the first inclined plane part phase
Second inclined plane part of adaptation and the second connecting portion extended on valve rod, described the first Fluorine-lined layer, the second Fluorine-lined layer and filler
Seal is engaged to form cavity, and described the 3rd Fluorine-lined layer is provided with the second sealing being adapted with the first sealing, institute
The first sealing and the second sealing stated are L-shaped.
As a modification of the present invention, described the 3rd Fluorine-lined layer is provided with the 3rd connecting portion, the packing seal element
Outer wall and the 3rd Fluorine-lined layer on the 3rd connecting portion fit, the inwall of described packing seal element with the second Fluorine-lined layer
Second connecting portion fits.
As a further improvement on the present invention, described valve body is provided with breach, and the 3rd described connecting portion is caught in valve body
Breach in.
As a further improvement on the present invention, the 3rd described Fluorine-lined layer is provided with the 3rd inclined plane part, and described filler is close
Sealing in insertion cavity and with the 3rd inclined plane part provided with fitting airtight and watertight padding seal head.
As a further improvement on the present invention, described packing seal element is provided with the wave sealing bent back and forth.
As a further improvement on the present invention, described wave sealing respectively with the second Fluorine-lined layer, the 3rd Fluorine-lined layer phase
Cooperatively form gap.
As a further improvement on the present invention, axle sleeve is arranged with described valve rod, one end of the axle sleeve and filler are close
Sealing is connected, and the other end is connected with pressing plate, gland.
As a further improvement on the present invention, described axle sleeve is provided with gib head press section, described packing seal element
Provided with the pothook being adapted with gib head press section.
As a further improvement on the present invention, the area of the first described inclined plane part is more than the area of the second inclined plane part.
As a further improvement on the present invention, described valve rod includes upper valve rod and lower valve rod, described upper valve rod, lower valve
Bar is connected with butterfly plate.
The beneficial effects of the invention are as follows respectively led to valve seat, butterfly plate and valve body and medium by first, second and third Fluorine-lined layer
Road is separated, it is to avoid dielectric damages valve body, while passing through the concrete structure of first, second and third Fluorine-lined layer so that valve seat is close with butterfly plate
Envelope is reliable, and the action of butterfly plate is easy in the setting of cavity, reduces frictional force, and has a small amount of leakage in time, and the setting of cavity can also be held
Put medium, it is to avoid dielectric leakage, the first sealing and the second sealing are L-shaped so that the first Fluorine-lined layer and the 3rd Fluorine-lined layer
Sealing surface is at right angles sealed, good sealing effect, it is to avoid dielectric leakage, and each Fluorine-lined layer, which cooperates, causes product sealing effectiveness
It is good, contact surface sealed reliable.The present invention also has simple in construction, easy to assembly, reliable in action, the advantages of service life is long.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of the embodiment of the present invention.
Accompanying drawing 2 is the half-sectional structural representation of accompanying drawing 1.
Accompanying drawing 3 is the structural representation enlarged drawing at I in accompanying drawing 2.
In figure, 1, valve seat；2nd, butterfly plate；3rd, valve body；31st, breach；4th, medium channel；5th, valve rod；51st, axle sleeve；511st, gib head
Press section；52nd, pressing plate；53rd, gland；54th, upper valve rod；55th, lower valve rod；6th, packing seal element；61st, packing seal head；62nd, wave
Sealing；63rd, gap；64th, pothook；7th, the first Fluorine-lined layer；71st, the first limiting section；72nd, the first inclined plane part；73rd, the first connection
Portion；74th, the first sealing；75th, cavity；8th, the second Fluorine-lined layer；81st, the second inclined plane part；82nd, second connecting portion；9th, the 3rd Fluorine-lined
Layer；91st, the second sealing；92nd, the 3rd connecting portion；93rd, the 3rd inclined plane part.
Embodiment
Embodiments of the present invention is further illustrated below in conjunction with the accompanying drawings：
As shown in Fig. 1 combinations Fig. 2,3, a kind of double eccentric flange butterfly valves of Fluorine-lined, including valve seat 1, butterfly plate 2 and valve body 3, described valve
Body 3 is provided with medium channel 4, and described butterfly plate 2 is provided with valve rod 5, the center of the center deviation butterfly plate 2 of the valve rod 5 and valve
The center of body 3, is provided with packing seal element 6 between described valve rod 5 and valve body 3, described valve seat 1 is provided with the first Fluorine-lined layer 7,
The second Fluorine-lined layer 8 is arranged with outside described butterfly plate 2, the inwall of the valve body 3 is provided with the 3rd Fluorine-lined layer 9, the first described lining
Fluorine layer 7 includes the first L-shaped limiting section 71, for mutually sealed first inclined plane part 72 of butterfly plate 2 and for mutually close with butterfly plate 2
First sealing 73 of envelope, is provided with first connecting portion 74 between the first described inclined plane part 72 and the first sealing 73, described
Second Fluorine-lined layer 8 is provided with the second inclined plane part 81 being adapted with the first inclined plane part 72 and second being connected of extending on valve rod 5
Portion 82, described the first Fluorine-lined the 7, second Fluorine-lined of layer layer 8 and packing seal element 6 are engaged to form cavity 75, the 3rd described lining
Fluorine layer 9 is provided with the second sealing 91 being adapted with the first sealing 73, the first described sealing 73 and the second sealing
Portion 91 is L-shaped.The present invention is respectively separated valve seat, butterfly plate and valve body and medium channel by first, second and third Fluorine-lined layer,
Dielectric damages valve body is avoided, while passing through the concrete structure of first, second and third Fluorine-lined layer so that valve seat and butterfly plate sealed reliable, it is special
It is not progress Fluorine-lined processing, sealed reliable in double eccentric butterfly valve, while considerably increasing the life-span of product, the setting of cavity is just
In the action of butterfly plate, frictional force is reduced, and has a small amount of leakage in time, the setting of cavity can also house medium, it is to avoid dielectric leakage,
First sealing and the second sealing are L-shaped so that the first Fluorine-lined layer and the 3rd Fluorine-lined layer sealing surface are at right angles sealed, and are sealed
Effect is good, it is to avoid dielectric leakage, and each Fluorine-lined layer, which cooperates, causes product good sealing effect, contact surface sealed reliable.This hair
It is bright that also there is simple in construction, easy to assembly, reliable in action, the advantages of service life is long.
Described the 3rd Fluorine-lined layer 9 is provided with the 3rd connecting portion 92, the outer wall of the packing seal element 6 and the 3rd Fluorine-lined layer
The 3rd connecting portion 92 on 9 fits, the second connecting portion 82 on the inwall of described packing seal element 6 and the second Fluorine-lined layer 8
Fit.Pass through the combination of the 3rd connecting portion and packing seal element, it is to avoid medium leaks into from medium channel and valve is damaged on valve body
Body.Pass through the combination of second connecting portion and packing seal element, it is to avoid medium leaks into damaging valve stem on valve rod from medium channel.
Described valve body 3 is provided with breach 31, and the 3rd described connecting portion 92 is caught in the breach 31 of valve body 3.Breach
Set and cause the 3rd connecting portion and the 3rd Fluorine-lined layer to fix reliable with valve body, it is to avoid the 3rd Fluorine-lined layer displacement influence in the course of work
Product hermeticity energy.
Described the 3rd Fluorine-lined layer 9 is provided with the 3rd inclined plane part 93, and described packing seal element 6 is provided with insertion cavity 75
It is interior and fitted airtight and watertight padding seal head 61 with the 3rd inclined plane part 93.In the packing seal head insertion cavity of packing seal element simultaneously
It is engaged to form cone sealing with the 3rd inclined plane part, sealed reliable, and because the concrete structure of packing seal element can be served as a contrast to the 3rd
Fluorine layer provides pressure all the time so that sealing surface is brought into close contact, sealed reliable.
Described packing seal element 6 is provided with the wave sealing 62 bent back and forth.Specifically, described wave sealing
Portion 62 is engaged to form gap 63 with the second Fluorine-lined the 8, the 3rd Fluorine-lined of layer layer 9 respectively.The setting of wave sealing causes filler close
Sealing has certain elasticity so that when packing seal element is pressed, it is close that its inside and outside wall can be cooperatively formed with valve rod, valve body respectively
Envelope is relatively reliable, because the setting of wave sealing can form multiple sealing surfaces, is sealed jointly so as to form multiple sealing rings
Effect, the setting in gap can accommodate certain leaking medium, while can provide flexible on axial direction for packing seal element
Surplus.
Axle sleeve 51 is arranged with described valve rod 5, one end of the axle sleeve 51 is connected with packing seal element 6, the other end
It is connected with pressing plate 52, gland 53.Specifically, described axle sleeve 51 is provided with gib head press section 511, described packing seal
Part 6 is provided with the pothook 64 being adapted with gib head press section 511.Such structure can reliably compress packing seal element, and
Packing seal element is avoided to shift, influence life of product and sealing property.
The area of the first described inclined plane part 72 is more than the area of the second inclined plane part 81.Can be with when so causing butterfly plate sealing
It is completely reliable to coordinate realization sealing with valve seat, and response is fast, can quickly carry out the switch of butterfly plate.
Described valve rod 5 includes upper valve rod 54 and lower valve rod 55, described upper valve rod 54, lower valve rod 55 with butterfly plate 2
Dynamic connection.Such structure causes product structure simple, easy to process, easy to assembly.
Every technical staff's notice：Although the present invention is described according to above-mentioned embodiment, of the invention
Invention thought be not limited to that invention, the repacking of any utilization inventive concept will all include this patent protection of the patent right
In the range of.
Claims (10)
1. a kind of double eccentric flange butterfly valves of Fluorine-lined, including valve seat（1）, butterfly plate（2）And valve body（3）, it is characterised in that:Described valve
Body（3）It is provided with medium channel（4）, described butterfly plate（2）It is provided with valve rod（5）, the valve rod（5）Center deviation butterfly plate
（2）Center and valve body（3）Center, described valve rod（5）With valve body（3）Between be provided with packing seal element（6）, described valve
Seat（1）Provided with the first Fluorine-lined layer（7）, described butterfly plate（2）It is outer to be arranged with the second Fluorine-lined layer（8）, the valve body（3）Inwall
Provided with the 3rd Fluorine-lined layer（9）, described first Fluorine-lined layer（7）Including the first L-shaped limiting section（71）, be used for and butterfly plate
（2）Mutually sealed first inclined plane part（72）Be used for and butterfly plate（2）Mutually sealed first sealing（73）, described the first inclined-plane
Portion（72）With the first sealing（73）Between be provided with first connecting portion（74）, described second Fluorine-lined layer（8）It is provided with and first
Inclined plane part（72）The second inclined plane part being adapted（81）With extend to valve rod（5）On second connecting portion（82）, described first
Fluorine-lined layer（7）, the second Fluorine-lined layer（8）And packing seal element（6）It is engaged to form cavity（75）, described 3rd Fluorine-lined layer（9）
It is provided with and the first sealing（73）The second sealing being adapted（91）, described the first sealing（73）With the second sealing
Portion（91）It is L-shaped.
2. the double eccentric flange butterfly valves of Fluorine-lined according to claim 1, it is characterised in that described the 3rd Fluorine-lined layer（9）On set
There is the 3rd connecting portion（92）, the packing seal element（6）Outer wall and the 3rd Fluorine-lined layer（9）On the 3rd connecting portion（92）It is affixed
Close, described packing seal element（6）Inwall and the second Fluorine-lined layer（8）On second connecting portion（82）Fit.
3. the double eccentric flange butterfly valves of Fluorine-lined according to claim 2, it is characterised in that described valve body（3）It is provided with breach
（31）, described the 3rd connecting portion（92）It is caught in valve body（3）Breach（31）It is interior.
4. the double eccentric flange butterfly valves of Fluorine-lined according to claim 3, it is characterised in that described the 3rd Fluorine-lined layer（9）On set
There is the 3rd inclined plane part（93）, described packing seal element（6）Provided with insertion cavity（75）It is interior and with the 3rd inclined plane part（93）Phase
The packing seal head of gluing, sealing（61）.
5. the double eccentric flange butterfly valves of Fluorine-lined according to claim 1, it is characterised in that described packing seal element（6）On set
There is the wave sealing bent back and forth（62）.
6. the double eccentric flange butterfly valves of Fluorine-lined according to claim 5, it is characterised in that described wave sealing（62）Point
Not with the second Fluorine-lined layer（8）, the 3rd Fluorine-lined layer（9）It is engaged to form gap（63）.
7. the double eccentric flange butterfly valves of Fluorine-lined according to claim 1, it is characterised in that described valve rod（5）On be arranged with axle
Set（51）, the axle sleeve（51）One end and packing seal element（6）It is connected, the other end and pressing plate（52）, gland（53）It is connected
Connect.
8. the double eccentric flange butterfly valves of Fluorine-lined according to claim 7, it is characterised in that described axle sleeve（51）It is provided with hook
Head press section（511）, described packing seal element（6）It is provided with and gib head press section（511）The pothook being adapted（64）.
9. the double eccentric flange butterfly valves of Fluorine-lined according to claim 1, it is characterised in that the first described inclined plane part（72）'s
Area is more than the second inclined plane part（81）Area.
10. the double eccentric flange butterfly valves of Fluorine-lined according to claim 1, it is characterised in that described valve rod（5）Including upper valve
Bar（54）And lower valve rod（55）, described upper valve rod（54）, lower valve rod（55）And butterfly plate（2）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710421891.1A CN106996461B (en) | 2017-06-07 | 2017-06-07 | The double eccentric flange butterfly valves of Fluorine-lined |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710421891.1A CN106996461B (en) | 2017-06-07 | 2017-06-07 | The double eccentric flange butterfly valves of Fluorine-lined |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106996461A true CN106996461A (en) | 2017-08-01 |
| CN106996461B CN106996461B (en) | 2019-05-17 |
Family
ID=59436468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710421891.1A Active CN106996461B (en) | 2017-06-07 | 2017-06-07 | The double eccentric flange butterfly valves of Fluorine-lined |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106996461B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2315365Y (en) * | 1997-12-05 | 1999-04-21 | 温州市防腐设备厂 | Double eccentric butterfly valve lined with fluoroplastic |
| CN2331798Y (en) * | 1998-05-07 | 1999-08-04 | 葛克克 | Butterfly valve |
| CN203532776U (en) * | 2013-10-11 | 2014-04-09 | 温州市利尔多阀门有限公司 | Fluorine lining butterfly valve |
| CN203686174U (en) * | 2014-01-13 | 2014-07-02 | 浙江有氟密阀门有限公司 | Novel fluorine-lined butterfly valve |
| CN205155334U (en) * | 2015-12-04 | 2016-04-13 | 上海安阀流体控制有限公司 | Corrode operating mode with lining fluorine butterfly valve level four seal structure |
-
2017
- 2017-06-07 CN CN201710421891.1A patent/CN106996461B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2315365Y (en) * | 1997-12-05 | 1999-04-21 | 温州市防腐设备厂 | Double eccentric butterfly valve lined with fluoroplastic |
| CN2331798Y (en) * | 1998-05-07 | 1999-08-04 | 葛克克 | Butterfly valve |
| CN203532776U (en) * | 2013-10-11 | 2014-04-09 | 温州市利尔多阀门有限公司 | Fluorine lining butterfly valve |
| CN203686174U (en) * | 2014-01-13 | 2014-07-02 | 浙江有氟密阀门有限公司 | Novel fluorine-lined butterfly valve |
| CN205155334U (en) * | 2015-12-04 | 2016-04-13 | 上海安阀流体控制有限公司 | Corrode operating mode with lining fluorine butterfly valve level four seal structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106996461B (en) | 2019-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203442165U (en) | Improved structure of valve rod connection portion of vacuum butterfly valve | |
| CN108775406A (en) | High-performance nano coating corrugated tube valve special for chlorine | |
| CN206361185U (en) | A kind of cryogenic ball valve | |
| CN213117571U (en) | Hard sealing fixed ball valve | |
| CN107084258B (en) | Butt-clamping fluorine ball valve | |
| CN106996461A (en) | The double eccentric flange butterfly valves of Fluorine-lined | |
| CN206555466U (en) | A kind of fluorine lining butterfly valve | |
| CN106439064A (en) | Three-eccentric manual butterfly valve for turbine | |
| CN103953735A (en) | Special angle stop valve for chlor-alkali | |
| CN207034213U (en) | A kind of double eccentric Butterfly valve with liner | |
| CN212672470U (en) | Double-elastic-lip floating ball valve | |
| CN204061977U (en) | High-performance steel lined with fluoroplastic pellet valve | |
| CN206918268U (en) | Fluorine lining butterfly valve | |
| CN104455431B (en) | A kind of alloy seal circle | |
| CN204664464U (en) | A kind of high performance corrosion-proof ball valve made of plastic | |
| CN216382620U (en) | Electric double-eccentric rubber-lined soft sealing butterfly valve | |
| CN208634392U (en) | A kind of Wear-resistant corrosion-resistant hardware plumbing pipe butterfly valve | |
| CN203322297U (en) | Elastic self-sealing butterfly valve | |
| CN210661403U (en) | Double-sealing corrosion-resistant butterfly valve | |
| CN207178723U (en) | A kind of floating type hard sealing structure in metal valve | |
| CN206816862U (en) | To pressing from both sides Fluorine-lined ball valve | |
| CN206257273U (en) | A kind of O-ring seal structure | |
| CN207064691U (en) | A kind of fast detachable pipeline gate valve | |
| CN207830576U (en) | A kind of two-way butterfly valve | |
| CN214888909U (en) | High-strength corrosion-resistant butterfly valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |