CN105546206B - A kind of bellows ball valve - Google Patents
A kind of bellows ball valve Download PDFInfo
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- CN105546206B CN105546206B CN201610112708.5A CN201610112708A CN105546206B CN 105546206 B CN105546206 B CN 105546206B CN 201610112708 A CN201610112708 A CN 201610112708A CN 105546206 B CN105546206 B CN 105546206B
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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
- F16K41/00—Spindle sealings
- F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
- F16K41/106—Spindle sealings with diaphragm, e.g. shaped as bellows or tube for use with rotating spindles or valves
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a kind of bellows ball valve, the first bellows component, the second bellows component are filled on valve rod successively from bottom to top；First bellows component includes upper and lower ring, and the first bellows is set between upper and lower ring, and upper and lower ring endoporus sets the groove of assembling, and the groove on upper ring and a follower peg socket for penetrating valve rod, the top bar face angle welding of lower ring and valve rod；Second bellows component includes upper and lower ring, second bellows is set between upper and lower ring, upper ring is connected by fastener with being arranged on the bushing of first, second bellows component periphery, and static seal is realized by the second sealing gasket, stop pin is circumferentially arranged with lower ring, stop pin and the axial groove on bushing inner chamber top are socketed；Between the top bar bottom surface of bushing and valve body seam plane suitable for reading, equipped with the first gasket seal；Cover plate is set above the second bellows component.The present invention flies rational in infrastructure, good seal performance, easy to use.
Description
Technical field
The present invention relates to a kind of bellows ball valve.
Background technology
The valve that high temperature and high pressure condition uses uses traditional packing seal structure, and not only service life is short, and leaks
Exceeded, gate valve, the stop valve turned round more uses bellows component seal form, but metal bellows can only make axial displacement and
Load is born, circumferential torsion loads and circumferential angular displacement must not be born.
The content of the invention
The winged purpose of the present invention is to provide a kind of rational in infrastructure, good seal performance, bellows ball valve easy to use.
The present invention technical solution be：
A kind of bellows ball valve, including valve body, valve seat, spheroid, valve rod, the first bellows is filled successively from bottom to top on valve rod
Component, the second bellows component；First bellows component includes upper and lower ring, and the first bellows is set between upper and lower ring,
Upper and lower ring endoporus sets the groove of assembling, and the groove on upper ring and a follower peg socket for penetrating valve rod, lower ring and valve rod
Top bar face angle welds；Second bellows component includes upper and lower ring, sets the second bellows between upper and lower ring, upper ring leads to
Cross fastener and be connected with being arranged on the bushing of first, second bellows component periphery, and static seal is realized by the second sealing gasket,
Stop pin is circumferentially arranged with lower ring, stop pin and the axial groove on bushing inner chamber top are socketed, with spacing second bellows group
The angular movement of part；Between the top bar bottom surface of bushing and valve body seam plane suitable for reading, equipped with the first gasket seal；Second ripple
The cover plate for being sleeved on valve rod, being fixedly connected with the valve body is set above tube assembly；Under first bellows component lower plane and bushing
Plane is equipped with gasket seal；
Assembly method comprises the following steps：
（1）Welding bellows component：Using argon arc welding method by first, second bellows respectively with corresponding upper ring, under
Boxing connects, and forms first, second bellows component；When first bellows component welds, the groove of upper and lower ring endoporus will be in same
On median plane；The lower plane of the lower ring of each bellows component is parallel with the upper plane of corresponding upper ring；
（2）Assembling：Valve rod is inserted into valve body from the top down, valve rod lower end passes through flat tenon, square tenon, spline or keyed cylindrical section
It is connected with spheroid corresponding aperture；Bushing is inserted into valve body, the bottom endoporus cylindrical cooperation corresponding with valve rod of bushing, lining from the top down
Set lower surface is connected on the upper surface that valve rod is got out of a predicament or an embarrassing situation, and prevents operating mode lower valve rod from flying out, the top bar bottom surface of bushing and valve body
The first gasket seal is filled between seam plane suitable for reading, and the second gasket seal is placed in the seam of bushing upper surface；
Insertion stop pin in the lower annular distance of two bellows components；Second bellows component is inserted in bushing from the top down, stop pin with
The axial groove gap on bushing inner chamber top coordinates, and slides up and down steady；By cover plate be inserted in valve rod and under push away, compressed by fastener
The gasket seal of first bellows component lower plane and bushing lower plane, while bellows has the predeformation amount of setting, to ensure
Plane and the seal pressure of the second bellows component lower plane on the first bellows component under original state；
The course of work：During valve opening and closing, drive device band ovable valve stem, valve rod drives spheroid to make 90 ° of rotations, the first bellows
For component with stem movement in the presence of follower peg, the second bellows component is inactive state in the presence of stop pin, first
The upper plane of bellows component tightly contacts with the lower plane of the second bellows component, and has the precompressed axial masterpiece of bellows
With in spite of relative 90 ° of motion, remaining to reliably seal.
The length of first bellows is 0.5-2 times of the second Bellows Length.
The length of first bellows is 0.5 times of the second Bellows Length.
The length of first bellows is 1 times of the second Bellows Length.
The length of first bellows is 1.5 times of the second Bellows Length.
The length of first bellows is 2 times of the second Bellows Length.
The length of first bellows is 0.8 times of the second Bellows Length.
The length of first bellows is 1.2 times of the second Bellows Length.
The length of first bellows is 1.8 times of the second Bellows Length.
The ball-valve structure that the present invention assembles is reasonable, and good seal performance is easy to use.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of one embodiment of the invention.
Embodiment
Embodiment 1：
A kind of bellows ball valve includes valve body 1, valve seat, spheroid 3, valve rod 4, and the first ripple is filled successively from bottom to top on valve rod
Tube assembly, the second bellows component；First bellows component includes upper and lower ring 5,6, and first wave is set between upper and lower ring
Line pipe 7, upper and lower ring endoporus sets the groove 8,9 of assembling, and the groove on upper ring is socketed with a follower peg for penetrating valve rod 10,
The top bar face angle welding of lower ring and valve rod；Second bellows component includes upper and lower ring 11,12, is set between upper and lower ring
Second bellows 13, upper ring is connected by fastener with being arranged on the bushing 14 of first, second bellows component periphery, and is passed through
Second sealing gasket 15 realizes static seal, and stop pin 16, stop pin and the axial direction on bushing inner chamber top are circumferentially arranged with lower ring
Groove 17 is socketed, with the angular movement of spacing second bellows component；The top bar bottom surface of bushing and valve body seam plane suitable for reading it
Between, equipped with the first gasket seal 18；The cover plate for being sleeved on valve rod, being fixedly connected with the valve body is set above the second bellows component
19。
The length of first bellows is 0.5 times of the second Bellows Length.
A kind of assembly method of bellows ball valve, comprises the following steps：
（1）Welding bellows component：Using argon arc welding method by first, second bellows respectively with corresponding upper ring, under
Boxing connects, and forms first, second bellows component；When first bellows component welds, the groove of upper and lower ring endoporus will be in same
On median plane；The lower plane of the lower ring of each bellows component is parallel with the upper plane of corresponding upper ring；
（2）Assembling：Valve rod is inserted into valve body from the top down, valve rod lower end passes through flat tenon, square tenon, spline or keyed cylindrical section
It is connected with spheroid corresponding aperture；Bushing is inserted into valve body, the bottom endoporus cylindrical cooperation corresponding with valve rod of bushing, lining from the top down
Set lower surface is connected on the upper surface that valve rod is got out of a predicament or an embarrassing situation, and prevents operating mode lower valve rod from flying out, the top bar bottom surface of bushing and valve body
The first gasket seal is filled between seam plane suitable for reading, and the second gasket seal is placed in the seam of bushing upper surface；
Insertion stop pin in the lower annular distance of two bellows components；Second bellows component is inserted in bushing from the top down, stop pin with
The axial groove gap on bushing inner chamber top coordinates, and slides up and down steady；By cover plate be inserted in valve rod and under push away, compressed by fastener
The gasket seal of first bellows component lower plane and bushing lower plane, while bellows has the predeformation amount of setting, to ensure
Plane and the seal pressure of the second bellows component lower plane on the first bellows component under original state.
The course of work：During valve opening and closing, drive device band ovable valve stem, valve rod drives spheroid to make 90 ° of rotations, the first bellows
For component with stem movement in the presence of follower peg, the second bellows component is inactive state in the presence of stop pin, first
The upper plane of bellows component tightly contacts with the lower plane of the second bellows component, and has the precompressed axial masterpiece of bellows
With in spite of relative 90 ° of motion, remaining to reliably seal.
Embodiment 2：
A kind of bellows ball valve, including valve body, valve seat, spheroid, valve rod, the first bellows is filled successively from bottom to top on valve rod
Component, the second bellows component；First bellows component includes upper and lower ring, and the first bellows is set between upper and lower ring,
Upper and lower ring endoporus sets the groove of assembling, and the groove on upper ring and a follower peg socket for penetrating valve rod, lower ring and valve rod
Top bar face angle welds；Second bellows component includes upper and lower ring, sets the second bellows between upper and lower ring, upper ring leads to
Cross fastener and be connected with being arranged on the bushing of first, second bellows component periphery, and static seal is realized by the second sealing gasket,
Stop pin is circumferentially arranged with lower ring, stop pin and the axial groove on bushing inner chamber top are socketed, with spacing second bellows group
The angular movement of part；Between the top bar bottom surface of bushing and valve body seam plane suitable for reading, equipped with the first gasket seal；Second ripple
The cover plate for being sleeved on valve rod, being fixedly connected with the valve body is set above tube assembly.
The length of first bellows is 1 times of the second Bellows Length.
A kind of assembly method of bellows ball valve, comprises the following steps：
（1）Welding bellows component：Using argon arc welding method by first, second bellows respectively with corresponding upper ring, under
Boxing connects, and forms first, second bellows component；When first bellows component welds, the groove of upper and lower ring endoporus will be in same
On median plane；The lower plane of the lower ring of each bellows component is parallel with the upper plane of corresponding upper ring；
（2）Assembling：Valve rod is inserted into valve body from the top down, valve rod lower end passes through flat tenon, square tenon, spline or keyed cylindrical section
It is connected with spheroid corresponding aperture；Bushing is inserted into valve body, the bottom endoporus cylindrical cooperation corresponding with valve rod of bushing, lining from the top down
Set lower surface is connected on the upper surface that valve rod is got out of a predicament or an embarrassing situation, and prevents operating mode lower valve rod from flying out, the top bar bottom surface of bushing and valve body
The first gasket seal is filled between seam plane suitable for reading, and the second gasket seal is placed in the seam of bushing upper surface；
Insertion stop pin in the lower annular distance of two bellows components；Second bellows component is inserted in bushing from the top down, stop pin with
The axial groove gap on bushing inner chamber top coordinates, and slides up and down steady；By cover plate be inserted in valve rod and under push away, compressed by fastener
The gasket seal of first bellows component lower plane and bushing lower plane, while bellows has the predeformation amount of setting, to ensure
Plane and the seal pressure of the second bellows component lower plane on the first bellows component under original state.
The course of work：During valve opening and closing, drive device band ovable valve stem, valve rod drives spheroid to make 90 ° of rotations, the first bellows
For component with stem movement in the presence of follower peg, the second bellows component is inactive state in the presence of stop pin, first
The upper plane of bellows component tightly contacts with the lower plane of the second bellows component, and has the precompressed axial masterpiece of bellows
With in spite of relative 90 ° of motion, remaining to reliably seal.
Embodiment 3：
A kind of bellows ball valve, including valve body, valve seat, spheroid, valve rod, the first bellows is filled successively from bottom to top on valve rod
Component, the second bellows component；First bellows component includes upper and lower ring, and the first bellows is set between upper and lower ring,
Upper and lower ring endoporus sets the groove of assembling, and the groove on upper ring and a follower peg socket for penetrating valve rod, lower ring and valve rod
Top bar face angle welds；Second bellows component includes upper and lower ring, sets the second bellows between upper and lower ring, upper ring leads to
Cross fastener and be connected with being arranged on the bushing of first, second bellows component periphery, and static seal is realized by the second sealing gasket,
Stop pin is circumferentially arranged with lower ring, stop pin and the axial groove on bushing inner chamber top are socketed, with spacing second bellows group
The angular movement of part；Between the top bar bottom surface of bushing and valve body seam plane suitable for reading, equipped with the first gasket seal；Second ripple
The cover plate for being sleeved on valve rod, being fixedly connected with the valve body is set above tube assembly.
The length of first bellows is 1.5 times of the second Bellows Length.
A kind of assembly method of bellows ball valve, comprises the following steps：
（1）Welding bellows component：Using argon arc welding method by first, second bellows respectively with corresponding upper ring, under
Boxing connects, and forms first, second bellows component；When first bellows component welds, the groove of upper and lower ring endoporus will be in same
On median plane；The lower plane of the lower ring of each bellows component is parallel with the upper plane of corresponding upper ring；
（2）Assembling：Valve rod is inserted into valve body from the top down, valve rod lower end passes through flat tenon, square tenon, spline or keyed cylindrical section
It is connected with spheroid corresponding aperture；Bushing is inserted into valve body, the bottom endoporus cylindrical cooperation corresponding with valve rod of bushing, lining from the top down
Set lower surface is connected on the upper surface that valve rod is got out of a predicament or an embarrassing situation, and prevents operating mode lower valve rod from flying out, the top bar bottom surface of bushing and valve body
The first gasket seal is filled between seam plane suitable for reading, and the second gasket seal is placed in the seam of bushing upper surface；
Insertion stop pin in the lower annular distance of two bellows components；Second bellows component is inserted in bushing from the top down, stop pin with
The axial groove gap on bushing inner chamber top coordinates, and slides up and down steady；By cover plate be inserted in valve rod and under push away, compressed by fastener
The gasket seal of first bellows component lower plane and bushing lower plane, while bellows has the predeformation amount of setting, to ensure
Plane and the seal pressure of the second bellows component lower plane on the first bellows component under original state.
The course of work：During valve opening and closing, drive device band ovable valve stem, valve rod drives spheroid to make 90 ° of rotations, the first bellows
For component with stem movement in the presence of follower peg, the second bellows component is inactive state in the presence of stop pin, first
The upper plane of bellows component tightly contacts with the lower plane of the second bellows component, and has the precompressed axial masterpiece of bellows
With in spite of relative 90 ° of motion, remaining to reliably seal.
Embodiment 4：
A kind of bellows ball valve, including valve body, valve seat, spheroid, valve rod, the first bellows is filled successively from bottom to top on valve rod
Component, the second bellows component；First bellows component includes upper and lower ring, and the first bellows is set between upper and lower ring,
Upper and lower ring endoporus sets the groove of assembling, and the groove on upper ring and a follower peg socket for penetrating valve rod, lower ring and valve rod
Top bar face angle welds；Second bellows component includes upper and lower ring, sets the second bellows between upper and lower ring, upper ring leads to
Cross fastener and be connected with being arranged on the bushing of first, second bellows component periphery, and static seal is realized by the second sealing gasket,
Stop pin is circumferentially arranged with lower ring, stop pin and the axial groove on bushing inner chamber top are socketed, with spacing second bellows group
The angular movement of part；Between the top bar bottom surface of bushing and valve body seam plane suitable for reading, equipped with the first gasket seal；Second ripple
The cover plate for being sleeved on valve rod, being fixedly connected with the valve body is set above tube assembly.
The length of first bellows is 2 times of the second Bellows Length.
A kind of assembly method of bellows ball valve, comprises the following steps：
（1）Welding bellows component：Using argon arc welding method by first, second bellows respectively with corresponding upper ring, under
Boxing connects, and forms first, second bellows component；When first bellows component welds, the groove of upper and lower ring endoporus will be in same
On median plane；The lower plane of the lower ring of each bellows component is parallel with the upper plane of corresponding upper ring；
（2）Assembling：Valve rod is inserted into valve body from the top down, valve rod lower end passes through flat tenon, square tenon, spline or keyed cylindrical section
It is connected with spheroid corresponding aperture；Bushing is inserted into valve body, the bottom endoporus cylindrical cooperation corresponding with valve rod of bushing, lining from the top down
Set lower surface is connected on the upper surface that valve rod is got out of a predicament or an embarrassing situation, and prevents operating mode lower valve rod from flying out, the top bar bottom surface of bushing and valve body
The first gasket seal is filled between seam plane suitable for reading, and the second gasket seal is placed in the seam of bushing upper surface；
Insertion stop pin in the lower annular distance of two bellows components；Second bellows component is inserted in bushing from the top down, stop pin with
The axial groove gap on bushing inner chamber top coordinates, and slides up and down steady；By cover plate be inserted in valve rod and under push away, compressed by fastener
The gasket seal of first bellows component lower plane and bushing lower plane, while bellows has the predeformation amount of setting, to ensure
Plane and the seal pressure of the second bellows component lower plane on the first bellows component under original state.
The course of work：During valve opening and closing, drive device band ovable valve stem, valve rod drives spheroid to make 90 ° of rotations, the first bellows
For component with stem movement in the presence of follower peg, the second bellows component is inactive state in the presence of stop pin, first
The upper plane of bellows component tightly contacts with the lower plane of the second bellows component, and has the precompressed axial masterpiece of bellows
With in spite of relative 90 ° of motion, remaining to reliably seal.
Embodiment, 5：
A kind of bellows ball valve, including valve body, valve seat, spheroid, valve rod, the first bellows is filled successively from bottom to top on valve rod
Component, the second bellows component；First bellows component includes upper and lower ring, and the first bellows is set between upper and lower ring,
Upper and lower ring endoporus sets the groove of assembling, and the groove on upper ring and a follower peg socket for penetrating valve rod, lower ring and valve rod
Top bar face angle welds；Second bellows component includes upper and lower ring, sets the second bellows between upper and lower ring, upper ring leads to
Cross fastener and be connected with being arranged on the bushing of first, second bellows component periphery, and static seal is realized by the second sealing gasket,
Stop pin is circumferentially arranged with lower ring, stop pin and the axial groove on bushing inner chamber top are socketed, with spacing second bellows group
The angular movement of part；Between the top bar bottom surface of bushing and valve body seam plane suitable for reading, equipped with the first gasket seal；Second ripple
The cover plate for being sleeved on valve rod, being fixedly connected with the valve body is set above tube assembly.
The length of first bellows is 1.8 times of the second Bellows Length.
A kind of assembly method of bellows ball valve, comprises the following steps：
（1）Welding bellows component：Using argon arc welding method by first, second bellows respectively with corresponding upper ring, under
Boxing connects, and forms first, second bellows component；When first bellows component welds, the groove of upper and lower ring endoporus will be in same
On median plane；The lower plane of the lower ring of each bellows component is parallel with the upper plane of corresponding upper ring；
（2）Assembling：Valve rod is inserted into valve body from the top down, valve rod lower end passes through flat tenon, square tenon, spline or keyed cylindrical section
It is connected with spheroid corresponding aperture；Bushing is inserted into valve body, the bottom endoporus cylindrical cooperation corresponding with valve rod of bushing, lining from the top down
Set lower surface is connected on the upper surface that valve rod is got out of a predicament or an embarrassing situation, and prevents operating mode lower valve rod from flying out, the top bar bottom surface of bushing and valve body
The first gasket seal is filled between seam plane suitable for reading, and the second gasket seal is placed in the seam of bushing upper surface；
Insertion stop pin in the lower annular distance of two bellows components；Second bellows component is inserted in bushing from the top down, stop pin with
The axial groove gap on bushing inner chamber top coordinates, and slides up and down steady；By cover plate be inserted in valve rod and under push away, compressed by fastener
The gasket seal of first bellows component lower plane and bushing lower plane, while bellows has the predeformation amount of setting, to ensure
Plane and the seal pressure of the second bellows component lower plane on the first bellows component under original state.
The course of work：During valve opening and closing, drive device band ovable valve stem, valve rod drives spheroid to make 90 ° of rotations, the first bellows
For component with stem movement in the presence of follower peg, the second bellows component is inactive state in the presence of stop pin, first
The upper plane of bellows component tightly contacts with the lower plane of the second bellows component, and has the precompressed axial masterpiece of bellows
With in spite of relative 90 ° of motion, remaining to reliably seal.
Claims (9)
1. a kind of bellows ball valve, including valve body, valve seat, spheroid, valve rod, it is characterized in that：Fill on valve rod successively from bottom to top
One bellows component, the second bellows component；First bellows component includes upper and lower ring, and first is set between upper and lower ring
Bellows, upper and lower ring endoporus set the groove of assembling, and the groove on upper ring and a follower peg socket for penetrating valve rod, lower ring
Welded with the top bar face angle of valve rod；Second bellows component includes upper and lower ring, and the second ripple is set between upper and lower ring
Pipe, upper ring are connected by fastener with being arranged on the bushing of first, second bellows component periphery, and are padded by the second sealing
Show static seal, stop pin is circumferentially arranged with lower ring, stop pin and the axial groove on bushing inner chamber top are socketed, with spacing second
The angular movement of bellows component；Between the top bar bottom surface of bushing and valve body seam plane suitable for reading, equipped with the first gasket seal；
The cover plate for being sleeved on valve rod, being fixedly connected with the valve body is set above the second bellows component；First bellows component lower plane
And bushing lower plane is equipped with gasket seal；
The course of work：During valve opening and closing, drive device band ovable valve stem, valve rod drives spheroid to make 90 ° of rotations, the first bellows component
With stem movement in the presence of follower peg, the second bellows component is inactive state in the presence of stop pin, the first ripple
The upper plane of tube assembly tightly contacts with the lower plane of the second bellows component, and has the precompressed responsive to axial force of bellows,
In spite of relative 90 ° motion, remain to reliably seal；
Assembly method：
(1) welding bellows component：First, second bellows is welded with corresponding upper ring and lower ring respectively using argon arc welding method
Connect, form first, second bellows component；When first bellows component welds, the groove of upper and lower ring endoporus will be in same center
On face；The lower plane of the lower ring of each bellows component is parallel with the upper plane of corresponding upper ring；
(2) assemble：Valve rod is inserted into valve body from the top down, valve rod lower end passes through flat tenon, square tenon, spline or keyed cylindrical section and ball
Body corresponding aperture connects；Bushing is inserted into valve body from the top down, the bottom endoporus cylindrical cooperation corresponding with valve rod of bushing, under bushing
End face is connected on the upper surface that valve rod is got out of a predicament or an embarrassing situation, and prevents operating mode lower valve rod from flying out, and the top bar bottom surface of bushing and valve body are suitable for reading
Seam plane between fill the first gasket seal, and the second gasket seal is placed in the seam of bushing upper surface；In the second ripple
Insertion stop pin in the lower annular distance of line tube assembly；Second bellows component is inserted in bushing from the top down, stop pin and bushing
The axial groove gap on inner chamber top coordinates, and slides up and down steady；By cover plate be inserted in valve rod and under push away, pass through fastener compress first
The gasket seal of bellows component lower plane and bushing lower plane, while bellows has the predeformation amount of setting, it is initial to ensure
Plane and the seal pressure of the second bellows component lower plane on the first bellows component under state.
2. a kind of bellows ball valve according to claim 1, it is characterized in that：The length of first bellows is the second bellows
0.5-2 times of length.
3. a kind of bellows ball valve according to claim 2, it is characterized in that：The length of first bellows is the second bellows
0.5 times of length.
4. a kind of bellows ball valve according to claim 2, it is characterized in that：The length of first bellows is the second bellows
1 times of length.
5. a kind of bellows ball valve according to claim 2, it is characterized in that：The length of first bellows is the second bellows
1.5 times of length.
6. a kind of bellows ball valve according to claim 2, it is characterized in that：The length of first bellows is the second bellows
2 times of length.
7. a kind of bellows ball valve according to claim 2, it is characterized in that：The length of first bellows is the second bellows
0.8 times of length.
8. a kind of bellows ball valve according to claim 2, it is characterized in that：The length of first bellows is the second bellows
1.2 times of length.
9. a kind of bellows ball valve according to claim 2, it is characterized in that：The length of first bellows is the second bellows
1.8 times of length.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610112708.5A CN105546206B (en) | 2016-03-01 | 2016-03-01 | A kind of bellows ball valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610112708.5A CN105546206B (en) | 2016-03-01 | 2016-03-01 | A kind of bellows ball valve |
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| Publication Number | Publication Date |
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| CN105546206A CN105546206A (en) | 2016-05-04 |
| CN105546206B true CN105546206B (en) | 2018-01-26 |
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| DE4237723A1 (en) * | 1992-11-09 | 1994-05-11 | Schuth Horst | Sealing for control shaft in valve - has moving seal mount relative to shaft housing for seal element to shaft and seal and shaft are connected by bellows |
| JPH07190244A (en) * | 1993-12-27 | 1995-07-28 | Nippon Carbon Co Ltd | Bellows seal revolving valve |
| CN102384310A (en) * | 2011-10-27 | 2012-03-21 | 江苏晨东机械制造有限公司 | Bellows assembly of SF6 valve and manufacturing method thereof |
| CN102954283A (en) * | 2012-10-29 | 2013-03-06 | 浙江盾安阀门有限公司 | Corrugated tube welding assembly and production method thereof |
| CN103994274A (en) * | 2014-06-06 | 2014-08-20 | 施瑞德阀门(厦门)有限公司 | Corrugated pipe plug valve |
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|---|---|
| CN105546206A (en) | 2016-05-04 |
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