CN108591525A - A kind of lift seal ball-valve - Google Patents
A kind of lift seal ball-valve Download PDFInfo
- Publication number
- CN108591525A CN108591525A CN201810734683.1A CN201810734683A CN108591525A CN 108591525 A CN108591525 A CN 108591525A CN 201810734683 A CN201810734683 A CN 201810734683A CN 108591525 A CN108591525 A CN 108591525A
- Authority
- CN
- China
- Prior art keywords
- flap
- valve
- seat
- sealing column
- limiting slot
- 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.)
- Withdrawn
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
- 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
- F16K5/0605—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 with particular plug arrangements, e.g. particular shape or built-in means
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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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
- 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
- F16K5/0647—Spindles or actuating means
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Lift Valve (AREA)
Abstract
The present invention provides a kind of lift seal ball-valve, including valve body, valve chamber is equipped in the valve body, the valve chamber is equipped with flap, described flap one end is semi-spherical shape, through-hole is equipped among flap, the through-hole runs through flap, the flap is equipped with sealing column, the flap is fixedly connected with sealing column, the sealing column is cylindrical shape, the handle, which lifts, turns 90 degree, sealing column moves up, gland packing box is tightly connected with flap, through-hole in flap is connected with pipeline, the limit bolt is moved to limit trench bottom, limiting slot is fixed by L-shaped structure and limit bolt, prevent valve rod from declining, handle is rotated 90 degree when blinding off a line, through-hole is disconnected with pipeline, limit bolt removes the horizontal shape structure of limiting slot, under the action of recovery device, valve rod declines, the handle upper end is arcuate structure, it is conveniently operated when holding.
Description
Technical field
The present invention relates to ball valve technical field, specially a kind of lift seal ball-valve.
Background technology
Currently, ball valve is widely used in the industries such as oil, chemical industry, electric power, metallurgy, papermaking.Conventional ball valve is generally adopted
With soft seal, due to being restricted by sealing material, Applicable temperature range is small, and high temperature resistant, high pressure and corrosive nature are low, use the longevity
Life is shorter, for that need to use high parameter, special operation condition condition of the high-performance ball valve as opening and closing element, such as：Ore pulp, lime-ash, dust
Etc. occasions, then cannot be satisfied, thus then use hard seal ball valve.Existing hard seal ball valve usually by valve body, valve deck, valve ball,
Valve seat and valve rod composition, drive the valve ball of its lower end to rotate when use by rotation valve rod, make through-hole on valve ball and valve
Runner is corresponding or is staggered, to realize the closure or openness of ball valve.Since valve ball generates friction in rotation process with valve seat,
Serious wear easily causes leakage, reduces the functional reliability of ball valve, shortens the service life of ball valve.
Invention content
Technical problem solved by the invention is to provide a kind of lift seal ball-valve, to solve in above-mentioned background technology
The problem of proposition.
Technical problem solved by the invention is realized using following technical scheme：A kind of lift seal ball-valve, including
Valve body, the valve body is interior to be equipped with valve chamber, and the valve chamber is equipped with flap, and described flap one end is semi-spherical shape, is equipped among flap
Through-hole, the through-hole run through flap, and the flap is equipped with sealing column, and the flap is fixedly connected with sealing column, the sealing
Column is cylindrical shape, and sealing column is fixedly connected by seal receptacle with valve rod, and the valve chamber inner wall is equipped with valve seat, the valve seat packet
Gland packing box is included, the gland packing box is arcuate structure, and gland packing box is connect with flap, sealing column gluing, sealing, institute
It states gland packing box to be flexibly connected with valve body by elastic device, holder is fixedly connected with by fixed structure on the valve body, institute
It includes screw seat, screw to state fixed structure, and the holder is equipped with limit bolt, and the limit bolt runs through holder, the valve
Bar is equipped with limiting slot, and described limit bolt one end is fixed on holder, the other end slides in limiting slot, and the limiting slot is
L-shaped structure, the limiting slot are equipped with recovery device, are equipped with handle outside the pedestal upper end, the handle passes through grip base
It is fixedly mounted on the top of valve rod, the handle upper end is arcuate structure.
The recovery device includes restoring seat, and the recovery seat is fixedly mounted on valve rod, and the recovery seat is equipped with extensive
Multiple spring, the recovery spring upper end are bonded fixation with cradle top.
The elastic device includes connecting rod, and described connecting rod one end is fixedly connected with gland packing box, the other end and company
Joint chair is fixedly connected, and the connecting seat outer end is equipped with extruding spring.
The flap has sealed base, and semi-spherical grooves, the semi-spherical grooves and valve are equipped among the sealed base
Valve gluing, sealing.
Compared with prior art, the beneficial effects of the invention are as follows：The handle, which lifts, turns 90 degree, and sealing column moves up, close
It seals stuffing-box to be tightly connected with flap, the through-hole in flap is connected with pipeline, and the limit bolt is moved to limit trench bottom, limit
Position slot fixed by L-shaped structure and limit bolt, prevent valve rod from declining, when blinding off a line by handle rotate 90 degree, through-hole and
Pipeline disconnects, and limit bolt removes the horizontal shape structure of limiting slot, and under the action of recovery device, valve rod declines, the handle upper end
For arcuate structure, when holding, is conveniently operated.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the elastic device structural schematic diagram of the present invention.
Specific implementation mode
In order to make implement technical means, creation characteristic, reached purpose and effect of the present invention be easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Embodiment 1
As shown in Fig. 1~2, a kind of lift seal ball-valve, including valve body 1, the valve body 1 is interior equipped with valve chamber 11, described
Valve chamber 11 is equipped with flap 12, and 12 one end of the flap is semi-spherical shape, is equipped with through-hole 13 among flap 12, the through-hole 13 runs through
Flap 12, the flap 12 are equipped with sealing column 14, and the flap 12 is fixedly connected with sealing column 14, and the sealing column 14 is circle
Post shapes, sealing column 14 are fixedly connected by seal receptacle 15 with valve rod 16, and 11 inner wall of the valve chamber is equipped with valve seat 2, the valve
Seat 2 includes gland packing box 21, and the gland packing box 21 is arcuate structure, gland packing box 21 and flap 12, sealing column 14
Gluing, sealing connects, and the gland packing box 21 is flexibly connected by elastic device 3 with valve body 1, passes through fixation on the valve body 1
Structure is fixedly connected with holder 4, and the fixed structure includes screw seat 41, screw 42, and the holder 4 is equipped with limit bolt 43,
The limit bolt 43 runs through holder 4, and the valve rod 16 is equipped with limiting slot 44, and 43 one end of the limit bolt is fixed on holder
On 4, other end sliding in the limiting slot 44, the limiting slot 44 is L-shaped structure, and the limiting slot 44 is equipped with recovery device 5,
Handle 53 is installed, the handle 53 is fixedly mounted on the top of valve rod 16 by grip base 54, described outside 4 upper end of the holder
53 upper end of handle is arcuate structure, and when holding is conveniently operated, and described lift handle 53 turns 90 degree, and sealing column 14 moves up, close
It seals stuffing-box 21 to be tightly connected with flap 12, the through-hole 13 in flap 12 is connected with pipeline, and the limit bolt 43 is moved to limit
Position 44 bottom of slot, limiting slot 44 are fixed by L-shaped structure and limit bolt 43, are prevented valve rod 16 from declining, will be held when blinding off a line
53 90 degree of rotations, through-hole 13 is disconnected with pipeline, and limit bolt 43 removes 44 horizontal shape structure of limiting slot, in recovery device 5
Under effect, valve rod 16 declines.
Embodiment 2
As shown in Fig. 1~2, a kind of lift seal ball-valve, including valve body 1, the valve body 1 is interior equipped with valve chamber 11, described
Valve chamber 11 is equipped with flap 12, and 12 one end of the flap is semi-spherical shape, is equipped with through-hole 13 among flap 12, the through-hole 13 runs through
Flap 12, the flap 12 are equipped with sealing column 14, and the flap 12 is fixedly connected with sealing column 14, and the sealing column 14 is circle
Post shapes, sealing column 14 are fixedly connected by seal receptacle 15 with valve rod 16, and 11 inner wall of the valve chamber is equipped with valve seat 2, the valve
Seat 2 includes gland packing box 21, and the gland packing box 21 is arcuate structure, gland packing box 21 and flap 12, sealing column 14
Gluing, sealing connects, and the gland packing box 21 is flexibly connected by elastic device 3 with valve body 1, passes through fixation on the valve body 1
Structure is fixedly connected with holder 4, and the fixed structure includes screw seat 41, screw 42, and the holder 4 is equipped with limit bolt 43,
The limit bolt 43 runs through holder 4, and the valve rod 16 is equipped with limiting slot 44, and 43 one end of the limit bolt is fixed on holder
On 4, other end sliding in the limiting slot 44, the limiting slot 44 is L-shaped structure, and the limiting slot 44 is equipped with recovery device 5,
Handle 53 is installed, the handle 53 is fixedly mounted on the top of valve rod 16 by grip base 54, described outside 4 upper end of the holder
53 upper end of handle is arcuate structure, and when holding is conveniently operated, and described lift handle 53 turns 90 degree, and sealing column 14 moves up, close
It seals stuffing-box 21 to be tightly connected with flap 12, the through-hole 13 in flap 12 is connected with pipeline, and the limit bolt 43 is moved to limit
Position 44 bottom of slot, limiting slot 44 are fixed by L-shaped structure and limit bolt 43, are prevented valve rod 16 from declining, will be held when blinding off a line
53 90 degree of rotations, through-hole 13 is disconnected with pipeline, and limit bolt 43 removes 44 horizontal shape structure of limiting slot, in recovery device 5
Under effect, valve rod 16 declines.
The recovery device 5 includes restoring seat 51, and the recovery seat 51 is fixedly mounted on valve rod 16, the recovery seat 51
It is equipped with and restores spring 52,52 upper end of recovery spring is bonded fixation with 4 top of holder.
Embodiment 3
As shown in Fig. 1~2, a kind of lift seal ball-valve, including valve body 1, the valve body 1 is interior equipped with valve chamber 11, described
Valve chamber 11 is equipped with flap 12, and 12 one end of the flap is semi-spherical shape, is equipped with through-hole 13 among flap 12, the through-hole 13 runs through
Flap 12, the flap 12 are equipped with sealing column 14, and the flap 12 is fixedly connected with sealing column 14, and the sealing column 14 is circle
Post shapes, sealing column 14 are fixedly connected by seal receptacle 15 with valve rod 16, and 11 inner wall of the valve chamber is equipped with valve seat 2, the valve
Seat 2 includes gland packing box 21, and the gland packing box 21 is arcuate structure, gland packing box 21 and flap 12, sealing column 14
Gluing, sealing connects, and the gland packing box 21 is flexibly connected by elastic device 3 with valve body 1, passes through fixation on the valve body 1
Structure is fixedly connected with holder 4, and the fixed structure includes screw seat 41, screw 42, and the holder 4 is equipped with limit bolt 43,
The limit bolt 43 runs through holder 4, and the valve rod 16 is equipped with limiting slot 44, and 43 one end of the limit bolt is fixed on holder
On 4, other end sliding in the limiting slot 44, the limiting slot 44 is L-shaped structure, and the limiting slot 44 is equipped with recovery device 5,
Handle 53 is installed, the handle 53 is fixedly mounted on the top of valve rod 16 by grip base 54, described outside 4 upper end of the holder
53 upper end of handle is arcuate structure, and when holding is conveniently operated, and described lift handle 53 turns 90 degree, and sealing column 14 moves up, close
It seals stuffing-box 21 to be tightly connected with flap 12, the through-hole 13 in flap 12 is connected with pipeline, and the limit bolt 43 is moved to limit
Position 44 bottom of slot, limiting slot 44 are fixed by L-shaped structure and limit bolt 43, are prevented valve rod 16 from declining, will be held when blinding off a line
53 90 degree of rotations, through-hole 13 is disconnected with pipeline, and limit bolt 43 removes 44 horizontal shape structure of limiting slot, in recovery device 5
Under effect, valve rod 16 declines.
The elastic device 3 includes connecting rod 31, and 31 one end of the connecting rod is fixedly connected with gland packing box 21, is another
End is fixedly connected with connecting seat 32, and 32 outer end of the connecting seat, which is equipped with, squeezes spring 33.
Embodiment 4
As shown in Fig. 1~2, a kind of lift seal ball-valve, including valve body 1, the valve body 1 is interior equipped with valve chamber 11, described
Valve chamber 11 is equipped with flap 12, and 12 one end of the flap is semi-spherical shape, is equipped with through-hole 13 among flap 12, the through-hole 13 runs through
Flap 12, the flap 12 are equipped with sealing column 14, and the flap 12 is fixedly connected with sealing column 14, and the sealing column 14 is circle
Post shapes, sealing column 14 are fixedly connected by seal receptacle 15 with valve rod 16, and 11 inner wall of the valve chamber is equipped with valve seat 2, the valve
Seat 2 includes gland packing box 21, and the gland packing box 21 is arcuate structure, gland packing box 21 and flap 12, sealing column 14
Gluing, sealing connects, and the gland packing box 21 is flexibly connected by elastic device 3 with valve body 1, passes through fixation on the valve body 1
Structure is fixedly connected with holder 4, and the fixed structure includes screw seat 41, screw 42, and the holder 4 is equipped with limit bolt 43,
The limit bolt 43 runs through holder 4, and the valve rod 16 is equipped with limiting slot 44, and 43 one end of the limit bolt is fixed on holder
On 4, other end sliding in the limiting slot 44, the limiting slot 44 is L-shaped structure, and the limiting slot 44 is equipped with recovery device 5,
Handle 53 is installed, the handle 53 is fixedly mounted on the top of valve rod 16 by grip base 54, described outside 4 upper end of the holder
53 upper end of handle is arcuate structure, and when holding is conveniently operated, and described lift handle 53 turns 90 degree, and sealing column 14 moves up, close
It seals stuffing-box 21 to be tightly connected with flap 12, the through-hole 13 in flap 12 is connected with pipeline, and the limit bolt 43 is moved to limit
Position 44 bottom of slot, limiting slot 44 are fixed by L-shaped structure and limit bolt 43, are prevented valve rod 16 from declining, will be held when blinding off a line
53 90 degree of rotations, through-hole 13 is disconnected with pipeline, and limit bolt 43 removes 44 horizontal shape structure of limiting slot, in recovery device 5
Under effect, valve rod 16 declines.
The flap 12 has sealed base 6, and semi-spherical grooves 61, the hemispherical are equipped among the sealed base 6
Slot 61 and 12 gluing, sealing of flap.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed range of the present invention by appended claims and
Its equivalent thereof.
Claims (4)
1. a kind of lift seal ball-valve, including valve body, it is characterised in that：Valve chamber is equipped in the valve body, the valve chamber is equipped with
Flap, described flap one end are semi-spherical shape, through-hole are equipped among flap, the through-hole runs through flap, and the flap is equipped with
Sealing column, the flap are fixedly connected with sealing column, and the sealing column is cylindrical shape, and sealing column is solid by seal receptacle and valve rod
Fixed connection, the valve chamber inner wall are equipped with valve seat, and the valve seat includes gland packing box, and the gland packing box is arc knot
Structure, gland packing box are connect with flap, sealing column gluing, sealing, and the gland packing box is connected by elastic device and valve body activity
It connects, holder is fixedly connected with by fixed structure on the valve body, the fixed structure includes screw seat, screw, on the holder
Equipped with limit bolt, the limit bolt runs through holder, and the valve rod is equipped with limiting slot, and described limit bolt one end is fixed on
On holder, the other end slided in limiting slot, the limiting slot be L-shaped structure, the limiting slot be equipped with recovery device, it is described
Handle is installed, the handle is fixedly mounted on the top of valve rod by grip base, and the handle upper end is arc outside pedestal upper end
Shape structure.
2. a kind of lift seal ball-valve according to claim 1, it is characterised in that：The recovery device includes restoring
Seat, the recovery seat are fixedly mounted on valve rod, and the recovery seat, which is equipped with, restores spring, the recovery spring upper end and holder
Top fitting is fixed.
3. a kind of lift seal ball-valve according to claim 1, it is characterised in that：The elastic device includes connection
Bar, described connecting rod one end is fixedly connected with gland packing box, the other end is fixedly connected with connecting seat, the connecting seat outer end peace
Equipped with extruding spring.
4. a kind of lift seal ball-valve according to claim 1, it is characterised in that：The flap has sealing bottom
Seat, the sealed base centre are equipped with semi-spherical grooves, the semi-spherical grooves and flap gluing, sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810734683.1A CN108591525A (en) | 2018-07-06 | 2018-07-06 | A kind of lift seal ball-valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810734683.1A CN108591525A (en) | 2018-07-06 | 2018-07-06 | A kind of lift seal ball-valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108591525A true CN108591525A (en) | 2018-09-28 |
Family
ID=63617609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810734683.1A Withdrawn CN108591525A (en) | 2018-07-06 | 2018-07-06 | A kind of lift seal ball-valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108591525A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173986A (en) * | 2020-01-20 | 2020-05-19 | 邵延荣 | Pre-decompression butterfly valve |
| CN112096905A (en) * | 2020-07-27 | 2020-12-18 | 中国石化销售股份有限公司华南分公司 | Disk type motor is with face cam drive valve core disk seat separation type friction-free ball valve in coordination |
| CN112096904A (en) * | 2020-07-27 | 2020-12-18 | 中国石化销售股份有限公司华南分公司 | Telescopic frictionless ball valve driven by disc type motor and face cam |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2064447U (en) * | 1989-04-22 | 1990-10-24 | 刘耀辉 | Multi-purpose valve with corrosion protecting function |
| CN1422367A (en) * | 2001-02-21 | 2003-06-04 | 三菱重工业株式会社 | Self-contained regulating valve, and compression type refrigerating machine having the same |
| CN201306463Y (en) * | 2008-11-21 | 2009-09-09 | 浙江石化阀门有限公司 | Transmission device of prop opened ball valve |
| CN101629639A (en) * | 2009-08-03 | 2010-01-20 | 立信阀门集团有限公司 | Lifting rod type corrugated pipe ball valve |
| CN204852443U (en) * | 2015-07-22 | 2015-12-09 | 福建新达阀门有限公司 | Novel high pressure resistant oil well well valve |
| CN206555473U (en) * | 2017-02-15 | 2017-10-13 | 广州格优智能控制系统有限公司 | A kind of nozzle group valve |
-
2018
- 2018-07-06 CN CN201810734683.1A patent/CN108591525A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2064447U (en) * | 1989-04-22 | 1990-10-24 | 刘耀辉 | Multi-purpose valve with corrosion protecting function |
| CN1422367A (en) * | 2001-02-21 | 2003-06-04 | 三菱重工业株式会社 | Self-contained regulating valve, and compression type refrigerating machine having the same |
| CN201306463Y (en) * | 2008-11-21 | 2009-09-09 | 浙江石化阀门有限公司 | Transmission device of prop opened ball valve |
| CN101629639A (en) * | 2009-08-03 | 2010-01-20 | 立信阀门集团有限公司 | Lifting rod type corrugated pipe ball valve |
| CN204852443U (en) * | 2015-07-22 | 2015-12-09 | 福建新达阀门有限公司 | Novel high pressure resistant oil well well valve |
| CN206555473U (en) * | 2017-02-15 | 2017-10-13 | 广州格优智能控制系统有限公司 | A kind of nozzle group valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173986A (en) * | 2020-01-20 | 2020-05-19 | 邵延荣 | Pre-decompression butterfly valve |
| CN111173986B (en) * | 2020-01-20 | 2021-07-27 | 良工阀门集团有限公司 | Pre-decompression butterfly valve |
| CN112096905A (en) * | 2020-07-27 | 2020-12-18 | 中国石化销售股份有限公司华南分公司 | Disk type motor is with face cam drive valve core disk seat separation type friction-free ball valve in coordination |
| CN112096904A (en) * | 2020-07-27 | 2020-12-18 | 中国石化销售股份有限公司华南分公司 | Telescopic frictionless ball valve driven by disc type motor and face cam |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180928 |