CN204628615U - A kind of fixed metal hard-sealing ball valve - Google Patents
A kind of fixed metal hard-sealing ball valve Download PDFInfo
- Publication number
- CN204628615U CN204628615U CN201520017396.0U CN201520017396U CN204628615U CN 204628615 U CN204628615 U CN 204628615U CN 201520017396 U CN201520017396 U CN 201520017396U CN 204628615 U CN204628615 U CN 204628615U
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- CN
- China
- Prior art keywords
- valve body
- main valve
- ball core
- bonnet
- metal hard
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Abstract
The utility model discloses a kind of fixed metal hard-sealing ball valve, comprise main valve body, auxiliary valve body, valve rod, ball core, bonnet, bottom flange, it is characterized in that: in described main valve body, have a cavity, a ball core is had in cavity, the top of main valve body is provided with a valve rod, valve rod is connected with ball core through the upper wall of main valve body, described auxiliary valve body is arranged on the side of main valve body, described auxiliary valve body is fixed by screw bolt and nut and main valve body, bottom flange is connected with by hexagon head bolt bottom described main valve body, described ball core lower end is placed on the stationary axle of bottom flange, lining and Lower shaft sleeve is provided with between described stationary axle and ball core, the both sides of described ball core and master, valve seat is provided with between auxiliary valve body, seal ring is provided with successively between described valve seat and valve body, disc spring, seal ring, valve seat trim ring.The utility model has the advantages such as operational torque is little, sealability stable, long service life, is adapted at using in hot environment.
Description
Technical field
The utility model relates to a kind of ball valve, specifically a kind of high temperature fixed metal hard-sealing ball valve.
Background technique
Hard seal ball valve is widely used in the industries such as petrochemical industry, high pressure coal gasification, plastic polymer, vapour system, mining industry, metallurgy, chemical fibre.But easily there is the phenomenons such as valve rod locking bite in the case of a high temperature in existing metal hard-sealing ball valve.
Model utility content
For solving the problems of the technologies described above, the utility model provides a kind of high temperature fixed metal hard-sealing ball valve being applicable to using in high temperature environments.
The technological scheme that the utility model is taked is:
A kind of fixed metal hard-sealing ball valve, comprise main valve body, auxiliary valve body, valve rod, ball core, bonnet, bottom flange, it is characterized in that: in described main valve body, have a cavity, a ball core is had in cavity, the top of main valve body is provided with a valve rod, valve rod is connected with ball core through the upper wall of main valve body, described auxiliary valve body is arranged on the side of main valve body, described auxiliary valve body is fixed by screw bolt and nut and main valve body, bottom flange is connected with by hexagon head bolt bottom described main valve body, described ball core lower end is placed on the stationary axle of bottom flange, lining and Lower shaft sleeve is provided with between described stationary axle and ball core, the both sides of described ball core and master, valve seat is provided with between auxiliary valve body, seal ring is provided with successively between described valve seat and valve body, disc spring, seal ring, valve seat trim ring.
The upside of described main valve body is provided with bonnet, described bonnet is fixedly connected with by bolt and nut with main valve body, Upper shaft sleeve is provided with bottom described bonnet and between the valve rod shaft shoulder, matrix liner, filler, Gland, hold-down grid is provided with successively from bottom to top in space between described valve rod and bonnet, described hold-down grid is provided with packing spring assembly, described packing spring assembly and hold-down grid are fixed on bonnet by bolt and nut, are provided with pad between described nut and packing spring assembly.
Described disc spring is cylindrical spring formula disc spring.
Described upper and lower axle sleeve adopts graphite annulus, and carries out the process of leaching antimony.
The material of described seal ring, matrix liner, filler is Expanded graphite.
The beneficial effects of the utility model are:
Valve body material of the present utility model uses refractory steel liner two-phase stainless steel sleeve can need the requirement meeting long-term work below 400 DEG C; The valve seat back side adopts cylindrical spring formula disc spring, provides initial pretightening unit sealing load, and Sealing adopts Expanded graphite, prevents metallic material line at high temperature from expanding; On the ball of fixed core, Lower shaft sleeve adopts graphite annulus leaching antimony, and selflubricating, graphite annulus has wear-resisting, and size is not with advantages such as temperature changes, and valve rod there will not be the phenomenons such as locking bite in the case of a high temperature.
In a word, fixed metal hard-sealing ball valve of the present utility model has the advantages such as operational torque is little, sealability stable, long service life, is adapted at using in hot environment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
Fig. 2 is the partial enlarged drawing of Fig. 1 valve seat part.
Embodiment
As shown in Figure 1, a kind of fixed metal hard-sealing ball valve of the present utility model, comprise main valve body 2, auxiliary valve body 1, valve rod 19, ball core 14, bonnet 18, bottom flange 4, it is characterized in that: in described main valve body 2, have a cavity, a ball core 14 is had in cavity, the top of main valve body 2 is provided with a valve rod 19, valve rod 19 is connected with ball core 14 through the upper wall of main valve body 2, described auxiliary valve body 1 is arranged on the side of main valve body 2, described auxiliary valve body 1 is fixed with main valve body 2 by bolt 8 and nut 7, bottom flange 4 is connected with by hexagon head bolt 3 bottom described main valve body 2, described ball core 14 lower end is placed on the stationary axle of bottom flange 4, lining 5 and Lower shaft sleeve 6 is provided with between described stationary axle and ball core 14, the both sides of described ball core 14 and master, valve seat 13 is provided with between auxiliary valve body 2 and 1, seal ring 9 is provided with successively between described valve seat 13 and valve body, disc spring 10, seal ring 11, valve seat trim ring 12.
The upside of described main valve body 2 is provided with bonnet 18, described bonnet 18 is fixedly connected with 17 by bolt and nut 16 with main valve body 2, Upper shaft sleeve 15 is provided with bottom described bonnet 18 and between valve rod 19 shaft shoulder, matrix liner 20 is provided with successively from bottom to top in space between described valve rod 19 and bonnet 18, filler 21, Gland 22, hold-down grid 23, described hold-down grid 23 is provided with packing spring assembly 24, described packing spring assembly 24 and hold-down grid 23 are by stud 27, nut 26 is fixed on bonnet 18, pad 25 is provided with between described nut 26 and packing spring assembly 24.
Described disc spring 10 is cylindrical spring formula disc spring.
Described upper and lower axle sleeve adopts graphite annulus, and carries out the process of leaching antimony.
The material of described seal ring 9 and 11, matrix liner 20, filler 21 is Expanded graphite.
Claims (5)
1. a fixed metal hard-sealing ball valve, comprise main valve body, auxiliary valve body, valve rod, ball core, bonnet, bottom flange, it is characterized in that: in described main valve body, have a cavity, a ball core is had in cavity, the top of main valve body is provided with a valve rod, valve rod is connected with ball core through the upper wall of main valve body, described auxiliary valve body is arranged on the side of main valve body, described auxiliary valve body is fixed by screw bolt and nut and main valve body, bottom flange is connected with by hexagon head bolt bottom described main valve body, described ball core lower end is placed on the stationary axle of bottom flange, lining and Lower shaft sleeve is provided with between described stationary axle and ball core, the both sides of described ball core and master, valve seat is provided with between auxiliary valve body, seal ring is provided with successively between described valve seat and valve body, disc spring, seal ring, valve seat trim ring.
2. a kind of fixed metal hard-sealing ball valve according to claim 1, it is characterized in that: the upside of described main valve body is provided with bonnet, described bonnet is fixedly connected with by bolt and nut with main valve body, Upper shaft sleeve is provided with bottom described bonnet and between the valve rod shaft shoulder, matrix liner is provided with successively from bottom to top in space between described valve rod and bonnet, filler, Gland, hold-down grid, described hold-down grid is provided with packing spring assembly, described packing spring assembly and hold-down grid are fixed on bonnet by bolt and nut, pad is provided with between described nut and packing spring assembly.
3. a kind of fixed metal hard-sealing ball valve according to claim 1, is characterized in that: described disc spring is cylindrical spring formula disc spring.
4. a kind of fixed metal hard-sealing ball valve according to claim 2, is characterized in that: described upper and lower axle sleeve adopts graphite annulus, and carries out the process of leaching antimony.
5. a kind of fixed metal hard-sealing ball valve according to claim 2, is characterized in that: the material of described seal ring, matrix liner, filler is Expanded graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520017396.0U CN204628615U (en) | 2015-01-09 | 2015-01-09 | A kind of fixed metal hard-sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520017396.0U CN204628615U (en) | 2015-01-09 | 2015-01-09 | A kind of fixed metal hard-sealing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628615U true CN204628615U (en) | 2015-09-09 |
Family
ID=54047647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520017396.0U Expired - Fee Related CN204628615U (en) | 2015-01-09 | 2015-01-09 | A kind of fixed metal hard-sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204628615U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654692A (en) * | 2017-10-31 | 2018-02-02 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of ball valve |
| CN108895175A (en) * | 2018-08-30 | 2018-11-27 | 昆山维萨阀门有限公司 | A kind of metal hard-sealing ball valve |
| CN109210232A (en) * | 2018-10-23 | 2019-01-15 | 无锡鑫华控阀业有限公司 | A kind of constant temperature insulation jacket ball valve |
-
2015
- 2015-01-09 CN CN201520017396.0U patent/CN204628615U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654692A (en) * | 2017-10-31 | 2018-02-02 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of ball valve |
| CN108895175A (en) * | 2018-08-30 | 2018-11-27 | 昆山维萨阀门有限公司 | A kind of metal hard-sealing ball valve |
| CN109210232A (en) * | 2018-10-23 | 2019-01-15 | 无锡鑫华控阀业有限公司 | A kind of constant temperature insulation jacket ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20160109 |