CN105864451B - Detachable valve seat sealing structure and the orbit ball valve including the sealing structure - Google Patents
Detachable valve seat sealing structure and the orbit ball valve including the sealing structure Download PDFInfo
- Publication number
- CN105864451B CN105864451B CN201610410199.4A CN201610410199A CN105864451B CN 105864451 B CN105864451 B CN 105864451B CN 201610410199 A CN201610410199 A CN 201610410199A CN 105864451 B CN105864451 B CN 105864451B
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- sealing structure
- valve body
- detachable
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 47
- 238000007667 floating Methods 0.000 claims abstract description 37
- 230000000903 blocking effect Effects 0.000 claims abstract description 25
- 239000000945 filler Substances 0.000 claims description 7
- 210000004907 gland Anatomy 0.000 claims description 7
- 238000009835 boiling Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 3
- 210000003660 reticulum Anatomy 0.000 description 15
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
-
- 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
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0694—Spindle sealings
Abstract
The present invention relates to detachable valve seat sealing structure and the orbit ball valve including the sealing structure, detachable valve seat sealing structure, including spheroid, floating valve seat, fixed valve base, pressure ring, snap ring and valve body, floating valve seat outer wall has been radially arranged annular blocking part A, and fixed valve base outer wall has been radially arranged annular blocking part B；Screw on pressure ring is withstood on annular blocking part B；The tail end of fixed valve base is withstood on annular blocking part A, annular blocking part A and valve body first in be provided with spring between step surface.A kind of orbit ball valve, in addition to including above-mentioned detachable valve seat sealing structure, in addition to bonnet, upper valve rod and lower valve rod, bonnet is above valve body and is fixedly connected with the valve body, and lower valve rod one end passes through bonnet and valve body and spheroid clamping.The present invention has dual-seal function, drastically increases the sealing reliability of valve, extends valve service life；Valve seat can be changed online, be advantageous to valve maintenance.
Description
Technical field
The present invention relates to valve technology field, more particularly to a kind of detachable valve seat sealing structure and including the sealing structure
Orbit ball valve.
Background technology
Existing ball valve or orbit ball valve use single floating valve seat structure, i.e. downstream only has 1 valve seat, and only 1 is heavy close
Envelope, sealing reliability are low；And using interference fit or it is welded to connect between valve seat and valve body, is difficult and even impossible to tear open online
Unload and change, so, when the seal failure of valve seat damage late gate, maintenance are very difficult.
The content of the invention
The present invention is intended to provide a kind of detachable valve seat sealing structure and the orbit ball valve including the sealing structure, using phase
Mutually independent bivalve holder structure, there is dual-seal function, and support online dismounting.
To reach above-mentioned purpose, the technical solution adopted by the present invention is as follows：
Detachable valve seat sealing structure, including spheroid, floating valve seat, fixed valve base, pressure ring, snap ring and valve body, the ball
Body is in valve body, and the floating valve seat and fixed valve base are located between spheroid and valve body, and the floating valve seat is located at standing valve
Seat inner side, the valve body is interior to be provided with interior step, and the floating valve seat outer wall is radially arranged what is be adapted to step in valve body first
Annular blocking part A, the fixed valve base outer wall are radially arranged the annular blocking part B being adapted to step in valve body second；
The valve interior wall is provided with the neck being adapted to snap ring, and the pressure ring is enclosed on fixed valve base, and the pressure ring is located at
Between snap ring and annular blocking part B, the internal diameter of the snap ring is less than the external diameter of pressure ring, is axially arranged with screw on the pressure ring, institute
State screw to withstand on annular blocking part B, the tail end of the fixed valve base is withstood on annular blocking part A, annular blocking part A and valve body
First in be provided with spring between step surface.
Further, being horizontally disposed with the axial seal face of the floating valve seat and fixed valve base has hole, and the one of the hole
The end face of end insertion floating valve seat, the other end in hole penetrate the end face of fixed valve base, leak hunting aperture are provided with the valve body,
The inner port of leak hunting aperture is between step surface in step surface and first in second.
Further, one end of floating valve seat and/or the fixed valve base inwall is provided with annular groove, and the annular groove is remote
From valve body.
Preferably, boiling water rises as high as the banks to be formed on floating valve seat and fixed valve base axial seal face on the inwall of fixed valve base
Hole.
Preferably, the hole is provided with 4 at equal intervals in circumferencial direction.
Further, it is provided with sealing ring on the floating valve seat and the axial seal face of fixed valve base and valve body.
Preferably, the material of the sealing ring is rubber.
A kind of orbit ball valve, in addition to including above-mentioned detachable valve seat sealing structure, in addition to bonnet and composition valve rod
Upper valve rod and lower valve rod, the bonnet is above the valve body and is fixedly connected with the valve body, and described lower valve rod one end passes through bonnet
With valve body and spheroid clamping, the lower valve rod is provided with spiral guide slot, and guide finger is arranged on bonnet, the head end of guide finger with
Spiral guide slot is slidably matched.
Further, axle sleeve is provided between the lower valve rod and bonnet.
Further, filler is provided between the upper valve rod and bonnet, is provided with and is sleeved on outside upper valve rod in the top of filler
Gland, the gland is fixedly connected with bonnet.
Further, the spheroid is provided with bearing pin, and bearing pin has two, and two bearing pins are respectively positioned at the relative of lower valve rod
Side, lower valve rod and bearing pin clamping.
Compared with prior art, the invention has the advantages that：
1. the detachable valve seat sealing structure of the present invention uses separate bivalve holder structure, i.e. fixed valve base and floating
Valve seat, there is dual-seal function, drastically increase the sealing reliability of valve, extend valve service life；
2. floating valve seat afterbody provides pretightning force by spring, fixed valve base uses detachable snap ring fixed structure, valve seat
It can online change, be advantageous to valve maintenance；
3. the annular groove set on floating valve seat, fixed valve base, forming special " u "-shaped elastic construction, have well
Self-compensating function；
4. setting through hole A between floating valve seat and fixed valve base sealing surface, while leak hunting aperture is also provided with valve body, makes ball
Passage is formed between body sealing surface and valve body, can On line inspection valve seat sealing situation by the passage；
5. using rubber sealing and the double sealing structure of metal hard-sealing between valve seat and valve body, sealing is relatively reliable,
Naturally there is fire-proof function.
Brief description of the drawings
Fig. 1 is the structural representation of detachable valve seat sealing structure；
Fig. 2 is the structural representation of " u "-shaped elastic construction；
Fig. 3 is the structural representation for the orbit ball valve for including detachable valve seat sealing structure；
In figure：1- spheroids, 2- floating valve seats, 3- fixed valve bases, 4- pressure rings, 5- screws, 6- snap rings, 7- sealing rings, 8- bullets
Spring, 9- valve bodies, 10- annulars blocking part A, 11- annular blocking part B, 12- hole, 13- leak hunting apertures, 14- upper valve rods, 15- lower valve rods,
16- bonnets, 17- axle sleeves, 18- spiral guide slots, 19- guide fingers, 20- fillers, 21- glands, 22- bearing pins, 23- bushings,
24- annular grooves.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with accompanying drawing, the present invention is entered
Row is further described.
As shown in figure 1, detachable valve seat sealing structure disclosed by the invention, including spheroid 1, floating valve seat 2, fixed valve base
3rd, pressure ring 4, snap ring 6 and valve body 9, spheroid 1 in the valve body 9, floating valve seat 2 and fixed valve base 3 located at spheroid 1 and valve body 9 it
Between, floating valve seat 2 is located at the inner side of fixed valve base 3, is provided with interior step in valve body 9, the outer wall of floating valve seat 2 has been radially arranged and valve body
The annular blocking part A10 that step is adapted in 9 first, the outer wall of fixed valve base 3 are radially arranged what is be adapted to step in valve body 9 second
Annular blocking part B11；The inwall of valve body 9 is provided with the neck being adapted to snap ring 6, and pressure ring 4 is enclosed on fixed valve base 3, and pressure ring 4 is located at card
Between ring 6 and annular blocking part B11, the internal diameter of snap ring 6 is less than the external diameter of pressure ring 4, is axially arranged with screw 5, screw 5 on pressure ring 4
Withstand on annular blocking part B11, the tail end of fixed valve base 3 is withstood on annular blocking part A10, annular blocking part A10 and valve body 9
Spring 8 is provided with first between step surface.
Further, floating valve seat 2 has hole 12, the one end in hole 12 with being horizontally disposed with the axial seal face of fixed valve base 3
The end face of floating valve seat 2 is penetrated, the other end in hole 12 penetrates the end face of fixed valve base 3, leak hunting aperture is provided with valve body 9
13, the inner port of leak hunting aperture 13 is between step surface in step surface and first in second.Further, leak hunting aperture 13 perpendicular to
The axis of valve body 9.Hole 12 forms online leak detection mouth with leak hunting aperture 13, and valve seat can be achieved by mouth of hunting leak hunts leak online.Preferably,
Boiling water is risen as high as the banks the hole 12 to be formed on floating valve seat 2 and the axial seal face of fixed valve base 3 on the inwall of fixed valve base 3.Further
, the hole 12 is provided with 4 at equal intervals in circumferencial direction.
Further, as shown in Fig. 2 one end of floating valve seat 2 and/or the inwall of fixed valve base 3 is provided with annular groove 24, ring
Shape groove 24 is away from valve body 9.Annular groove 24 forms special " u "-shaped elastic construction, valve seat is had good self-compensating function.Enter
One step, the contact surface between floating valve seat 2 and fixed valve base 3 is cascaded surface, further, the annular groove 24 on fixed valve base 3
On cascaded surface；Further, floating valve seat 2 and fixed valve base 3 on the axial seal face of valve body 9 with being provided with sealing ring
7.Preferably, the material of sealing ring 7 is rubber.
As shown in figure 3, a kind of orbit ball valve disclosed by the invention, in addition to including above-mentioned detachable valve seat sealing structure,
Also include bonnet 16 and form the upper valve rod 14 and lower valve rod 15 of valve rod, bonnet 16 is fixed located at the top of valve body 9 and with valve body 9
Connection, the one end of lower valve rod 15 pass through bonnet 16 and valve body 9 and the clamping of spheroid 1.Further, set between lower valve rod 15 and bonnet 16
There is axle sleeve 17.Further, lower valve rod 15 is provided with spiral guide slot 18, and guide finger 19 is arranged on bonnet 16, guide finger 19
Head end be slidably matched with spiral guide slot 18.Detachable valve seat sealing structure is located at the downstream of orbit ball valve.Set in valve body 9
There is the bushing 23 being adapted to spheroid 1, bushing 23 is located at the opposite side of spheroid 1 with lower valve rod 15 respectively.
Further, filler 20 is provided between upper valve rod 14 and bonnet 16, is provided with the top of filler 20 and is sleeved on upper valve
Gland 21 outside bar 14, gland 21 are fixedly connected with bonnet 16.
Further, spheroid 1 is provided with bearing pin 22, and bearing pin 22 has two, and two bearing pins 22 are respectively positioned at lower valve rod 15
Opposite side, lower valve rod 15 and the clamping of bearing pin 22.Lower valve rod 15 and the connection end of spheroid 1 are arranged to inclined-plane, and inclined-plane upper end is to valve seat side
To inclination, inclined-plane lower end is flat horizontal surface.Two bearing pins 22 are located at inclined-plane both sides.The valve rod so designed makes spheroid 1 and valve seat
Sealing surface protects the sealing surface of spheroid 1 and valve seat, so as to extend making for spheroid 1, floating valve seat 2 and fixed valve base 3 without friction
With the life-span, while valve rod operation is set to need the moment of torsion of very little.
Certainly, the present invention can also have other numerous embodiments, in the case of without departing substantially from spirit of the invention and its essence,
Those skilled in the art can make various corresponding changes and deformation according to the present invention, but these change and become accordingly
Shape should all belong to the protection domain of appended claims of the invention.
Claims (10)
1. detachable valve seat sealing structure, it is characterised in that:Including spheroid (1), floating valve seat (2), fixed valve base (3), pressure ring
(4), snap ring (6) and valve body (9), in valve body (9), the floating valve seat (2) and fixed valve base (3) are set the spheroid (1)
Between spheroid (1) and valve body (9), the floating valve seat (2) is located on the inside of fixed valve base (3), is provided with the valve body (9) interior
Step, floating valve seat (2) outer wall are radially arranged the annular blocking part A (10) being adapted to step in valve body (9) first, institute
State fixed valve base (3) outer wall and be radially arranged the annular blocking part B (11) being adapted to step in valve body (9) second；
Valve body (9) inwall is provided with the neck being adapted to snap ring (6), and the pressure ring (4) is enclosed on fixed valve base (3), described
Pressure ring (4) is located between snap ring (6) and annular blocking part B (11), and the internal diameter of the snap ring (6) is less than the external diameter of pressure ring (4), institute
State and screw (5) is axially arranged with pressure ring (4), the screw (5) is withstood on annular blocking part B (11), the fixed valve base (3)
Tail end is withstood on annular blocking part A (10), annular blocking part A (10) and valve body (9) first in be provided with spring between step surface
(8)。
2. detachable valve seat sealing structure according to claim 1, it is characterised in that：The floating valve seat (2) is with fixing
Being horizontally disposed with the axial seal face of valve seat (3) has hole (12), one end of one end insertion floating valve seat (2) of the hole (12)
Face, the other end of hole (12) penetrate the end face of fixed valve base (3), leak hunting aperture (13), leak hunting aperture are provided with the valve body (9)
(13) inner port is between step surface in step surface and first in second.
3. detachable valve seat sealing structure according to claim 1 or 2, it is characterised in that：The floating valve seat (2) and/
Or one end of fixed valve base (3) inwall is provided with annular groove (24), the annular groove (24) is away from valve body (9).
4. detachable valve seat sealing structure according to claim 2, it is characterised in that：On the inwall of fixed valve base (3)
Boiling water is risen as high as the banks the hole (12) to be formed on floating valve seat (2) and fixed valve base (3) axial seal face.
5. the detachable valve seat sealing structure according to claim 2 or 4, it is characterised in that：The hole (12) is in circumference side
To being provided with 4 at equal intervals.
6. detachable valve seat sealing structure according to claim 1 or 2, it is characterised in that：The floating valve seat (2) and solid
Valve seat (3) is determined with being provided with sealing ring (7) on the axial seal face of valve body (9).
7. detachable valve seat sealing structure according to claim 6, it is characterised in that：The material of the sealing ring (7) is
Rubber.
8. include the orbit ball valve of the detachable valve seat sealing structure described in any one of claim 1~7 claim, its feature
It is：Also include bonnet (16) and form the upper valve rod (14) and lower valve rod (15) of valve rod, the bonnet (16) is located at valve body
(9) it is fixedly connected above and with valve body (9), described lower valve rod (15) one end is blocked through bonnet (16) and valve body (9) with spheroid (1)
Connect, the lower valve rod (15) is provided with spiral guide slot (18), and guide finger (19) is arranged on bonnet (16), guide finger (19)
Head end is slidably matched with spiral guide slot (18).
9. orbit ball valve according to claim 8, it is characterised in that：It is provided between the upper valve rod (14) and bonnet (16)
Filler (20), it is provided with the top of filler (20) and is sleeved on the gland (21) of upper valve rod (14) outside, the gland
(21) it is fixedly connected with bonnet (16).
10. orbit ball valve according to claim 8, it is characterised in that：The spheroid (1) is provided with bearing pin (22), bearing pin
(22) there are two, two bearing pins (22) are located at the opposite side of lower valve rod (15), lower valve rod (15) and bearing pin (22) clamping respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610410199.4A CN105864451B (en) | 2016-06-12 | 2016-06-12 | Detachable valve seat sealing structure and the orbit ball valve including the sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610410199.4A CN105864451B (en) | 2016-06-12 | 2016-06-12 | Detachable valve seat sealing structure and the orbit ball valve including the sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105864451A CN105864451A (en) | 2016-08-17 |
| CN105864451B true CN105864451B (en) | 2018-03-06 |
Family
ID=56649972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610410199.4A Active CN105864451B (en) | 2016-06-12 | 2016-06-12 | Detachable valve seat sealing structure and the orbit ball valve including the sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105864451B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812965B (en) * | 2017-03-24 | 2023-04-25 | 慎江阀门有限公司 | Flat gate valve capable of being quickly assembled, disassembled and overhauled on line |
| CN107727316B (en) * | 2017-10-26 | 2023-05-12 | 方正阀门集团股份有限公司 | Sealing performance detection device for fixed ball valve |
| CN108547963B (en) * | 2018-04-28 | 2024-03-19 | 上海华托阀门自动化有限公司 | Primary and secondary sealing device for pipeline ball valve |
| CN110778735B (en) * | 2018-07-30 | 2021-11-16 | 永嘉东峰阀门有限公司 | Soft and hard double sealing ball valve |
| CN112728151A (en) * | 2020-12-31 | 2021-04-30 | 五洲阀门股份有限公司 | Ball valve with multiple sealing track structure |
| CN113503375B (en) * | 2021-07-30 | 2022-10-14 | 清华大学 | Pressure self-balancing bidirectional sealing valve seat structure |
| CN113586754B (en) * | 2021-07-30 | 2022-04-22 | 清华大学 | Forced sealing valve seat |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0598222A1 (en) * | 1992-11-17 | 1994-05-25 | DEUTSCHE AUDCO GmbH | Ball valve |
| CN102128279A (en) * | 2009-12-22 | 2011-07-20 | 阀尔巴特有限公司 | Trunnion-mounted ball valve with reverse-piston effect |
| CN102679008A (en) * | 2012-05-21 | 2012-09-19 | 保一集团有限公司 | Heavy-calibre ball valve |
| CN204459258U (en) * | 2015-01-14 | 2015-07-08 | 意阀（苏州）阀门有限公司 | A kind of novel seal valve seat |
| CN204755996U (en) * | 2015-06-16 | 2015-11-11 | 上海三牧阀门制造有限公司 | Plane high temperature ball valve |
| CN205298623U (en) * | 2015-11-27 | 2016-06-08 | 成都成高阀门有限公司 | Compound seal structure of box -like ball valve of multichannel multiunit |
| CN205908795U (en) * | 2016-06-12 | 2017-01-25 | 成都成高阀门有限公司 | Can dismantle valve seat seal structure reaches track ball valve including this seal structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2438419B (en) * | 2006-05-22 | 2010-12-29 | Halliburton Energy Serv Inc | Ball valve |
-
2016
- 2016-06-12 CN CN201610410199.4A patent/CN105864451B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0598222A1 (en) * | 1992-11-17 | 1994-05-25 | DEUTSCHE AUDCO GmbH | Ball valve |
| CN102128279A (en) * | 2009-12-22 | 2011-07-20 | 阀尔巴特有限公司 | Trunnion-mounted ball valve with reverse-piston effect |
| CN102679008A (en) * | 2012-05-21 | 2012-09-19 | 保一集团有限公司 | Heavy-calibre ball valve |
| CN204459258U (en) * | 2015-01-14 | 2015-07-08 | 意阀（苏州）阀门有限公司 | A kind of novel seal valve seat |
| CN204755996U (en) * | 2015-06-16 | 2015-11-11 | 上海三牧阀门制造有限公司 | Plane high temperature ball valve |
| CN205298623U (en) * | 2015-11-27 | 2016-06-08 | 成都成高阀门有限公司 | Compound seal structure of box -like ball valve of multichannel multiunit |
| CN205908795U (en) * | 2016-06-12 | 2017-01-25 | 成都成高阀门有限公司 | Can dismantle valve seat seal structure reaches track ball valve including this seal structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105864451A (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105864451B (en) | Detachable valve seat sealing structure and the orbit ball valve including the sealing structure | |
| CN206592212U (en) | A kind of valve hermetical structure and the aircraft engine jettison gear with it | |
| CN205908795U (en) | Can dismantle valve seat seal structure reaches track ball valve including this seal structure | |
| CN103727273A (en) | Heavy-caliber axial flow type check valve | |
| BR112020006126A2 (en) | threaded connection for steel pipe | |
| BR112013028963B1 (en) | valve useful as a production valve in an underwater production tree or connected to an underwater production tree | |
| JP6516785B2 (en) | Eccentric rotary valve | |
| CN207880128U (en) | A kind of check valve and liquid chromatograph | |
| CN203686272U (en) | Large-caliber axial-flow type check valve | |
| CN206929403U (en) | A kind of full welded pipeline ball valve | |
| CN106124251A (en) | Spot sampling bucket | |
| CN108267054B (en) | Explosion container with excellent dynamic sealing performance | |
| CN208041234U (en) | A kind of dual plate wafer type check valve | |
| CN207796188U (en) | A kind of flap check-valves | |
| JP6216551B2 (en) | Pressure operated valve | |
| CN216200588U (en) | Flow regulating valve | |
| CN107477193B (en) | A kind of spherical valve seat butterfly valve | |
| WO2019148546A1 (en) | Seal combination device for shaft | |
| CN208474570U (en) | Check valve | |
| CN208331348U (en) | Deflation check device | |
| CN202561109U (en) | V-shaped ball valve | |
| CN107289157A (en) | A kind of low-pressure drop check valve | |
| CN207161764U (en) | Wear-resisting antiscour ball valve | |
| CN105649549A (en) | Drilling tool righting pup joint | |
| CN206874875U (en) | A kind of high leakproofness fixing ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181129 Address after: 610000 Industrial Road, Jinyuan Town, Dayi County, Chengdu, Sichuan Co-patentee after: CHENGDU CHENGFENG VALVE Co.,Ltd. Patentee after: CHENGDU CHENG GAO VALVE Co.,Ltd. Co-patentee after: CHENGDU CHENGFENG FLOW-TECH GROUP Co.,Ltd. Address before: 610000 No. 67 Industrial Avenue, Jinyuan Town, Dayi County, Chengdu City, Sichuan Province Patentee before: CHENGDU CHENG GAO VALVE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200714 Address after: Dayi County, Sichuan province 610000 Chengdu Jinyuan Town Industrial Avenue Co-patentee after: CHENGDU CHENGFENG VALVE Co.,Ltd. Patentee after: CHENGDU CHENG GAO VALVE Co.,Ltd. Co-patentee after: PETROCHINA WEST PIPELINE Co. Co-patentee after: CHENGDU CHENGFENG FLOW-TECH GROUP Co.,Ltd. Address before: Dayi County, Sichuan province 610000 Chengdu Jinyuan Town Industrial Avenue Co-patentee before: CHENGDU CHENGFENG VALVE Co.,Ltd. Patentee before: CHENGDU CHENG GAO VALVE Co.,Ltd. Co-patentee before: CHENGDU CHENGFENG FLOW-TECH GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: No. 67, Section 1, Xueshan Avenue, Dayi County, Chengdu City, Sichuan Province, 611330 Patentee after: Chengdu Chenggao Valve Co.,Ltd. Country or region after: China Patentee after: CHENGDU CHENGFENG VALVE Co.,Ltd. Patentee after: State pipe network group West Pipeline Co.,Ltd. Patentee after: Chengfeng FLOW-TECH Group Address before: 610000 Industrial Road, Jinyuan Town, Dayi County, Chengdu, Sichuan Patentee before: CHENGDU CHENG GAO VALVE Co.,Ltd. Country or region before: China Patentee before: CHENGDU CHENGFENG VALVE Co.,Ltd. Patentee before: PETROCHINA WEST PIPELINE Co. Patentee before: CHENGDU CHENGFENG FLOW-TECH GROUP Co.,Ltd. |
|
| CP03 | Change of name, title or address |