CN205226446U - Low moment of torsion ball valve with thrust pad - Google Patents
Low moment of torsion ball valve with thrust pad Download PDFInfo
- Publication number
- CN205226446U CN205226446U CN201521056671.6U CN201521056671U CN205226446U CN 205226446 U CN205226446 U CN 205226446U CN 201521056671 U CN201521056671 U CN 201521056671U CN 205226446 U CN205226446 U CN 205226446U
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- thrust pad
- valve
- stuffing box
- ball valve
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Abstract
The utility model provides a low moment of torsion ball valve with thrust pad, is through setting up wedge -form thrust pad, and there is a differential seat angle of 2 degrees on thrust pad and packing box contact inclined plane, and thrust pads structure has the valve rod of preventing rotates and produces the scratch with the packing box, and sealed effect can also be played simultaneously in reduce friction's effect, and high more when valve pocket pressure, sealing performance is good more for this thrust pad. And it is dark that high pressure valve packing box depth requirement can be solved to here thrust pad, unfavorable current situation that the pretightning force is big, pressure is high more, and its superiority is apparent more, the utility model discloses the thrust pad is sealed for once, and the valve stem packing be the secondary seal, and the number of piles of consequently packing reduces relatively, can be reduced by original layer to be the layer, reduces approximately 40 percent, and the pretightning force also reduces relatively, and the valve rod easily can reduce with the friction torque of filler relatively promptly, and the moment of torsion reduces the needs use electronicly, and during intelligent control such as pneumatics, the executor cost of valve can show and reduces the competitive strength of enterprise in the same trade of competing.
Description
Technical field
The utility model relates to valve field, is specifically related to a kind of low torque ball valve with thrust pad.
Background technique
In existing technology, the number of plies of the filler of ball valve mostly is 5 layers, because the filler number of plies is many, cause pretightening force large, finally cause the friction torque of the valve rod of ball valve and filler large, and thrust pad is plane form in existing ball valve, only play and prevent valve rod rotation from producing scratch with stuffing box, reduce rubbing action, the effect of sealing can not be played.
Summary of the invention
In order to solve the deficiencies in the prior art, of the present utility modelly provide a kind of low torque ball valve with thrust pad.
The technical solution that the utility model adopts is: a kind of low torque ball valve with thrust pad, comprise valve body, valve seat, valve rod, spheroid and actuator, described body top is provided with stuffing box, described stuffing box is provided with packing cavity, filler is provided with in described packing cavity, described valve rod front end is provided with stem head, the joint of described stem head and valve rod and stuffing box is provided with thrust pad, described thrust pad is wedge-shaped structure, and the thrust pad of described wedge shape and the surface of contact of stuffing box exist the tilt angle that the number of degrees are 2 °.
The described filler number of plies is 3 layers.
Described stem head is also provided with electrostatic equipment.
Is provided with mounting hole in the middle of described stuffing box, described stem head is connected with spheroid through mounting hole, and described mounting hole and the connection of stem head go out and be also provided with sliding bearing.
Described packing cavity is provided with gland, and described gland is provided with pressing plate, and described pressing plate is arranged on stuffing box by bolt.
Also be provided with spring seat between described valve body and valve seat, in described spring seat, be provided with spring, between described spring seat and valve seat, be also provided with seal ring.
The beneficial effects of the utility model are: the utility model provides a kind of low torque ball valve with thrust pad, by arranging the thrust pad of wedge shape, thrust pad contacts the differential seat angle that inclined-plane has 2 degree with stuffing box, thrust pad structure have prevent valve rod rotate with stuffing box produce scratch, reduce the effect of friction, seal action can also be played simultaneously, when valve pocket pressure is higher, this thrust pad sealability is better. and it is dark that this thrust pad can solve high pressure valve stuffing box depth requirements, the unfavorable present situation that pretightening force is large, pressure is higher, and its superiority is more remarkable.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model filling-material structure enlarged view.
Fig. 3 is the utility model thrust pad schematic enlarged-scale view.
1-valve body in figure, 2-valve rod, 3-spheroid, 4-actuator, 5-stuffing box, 6-thrust pad, 7-tilt angle, 11-valve seat, 12-spring seat, 13-seal ring, 21-stem head, 22-electrostatic equipment, 23-sliding bearing, 51-filler, 52-gland, 53-pressing plate.
Embodiment
Existing composition graphs 1, Fig. 2, Fig. 3 are further described the utility model, a kind of low torque ball valve with thrust pad, comprise valve body 1, valve seat 11, valve rod 2, spheroid 3 and actuator 4, described valve body 1 top is provided with stuffing box 5, described stuffing box 5 is provided with packing cavity, be provided with filler 51 in described packing cavity, described filler 51 number of plies is 3 layers.Described packing cavity is provided with gland 52, and described gland 52 is provided with pressing plate 53, and described pressing plate 53 is arranged on stuffing box 5 by bolt.Described valve rod 2 front end is provided with stem head 21, described stem head 21 is provided with thrust pad 6 with the joint of valve rod 2 and stuffing box 5, described thrust pad 6 is wedge-shaped structure, and the thrust pad 6 of described wedge shape exists with the surface of contact of stuffing box 5 tilt angle 7 that the number of degrees are 2 °.The utility model is by arranging the thrust pad 6 of wedge shape, thrust pad 6 contacts with stuffing box 5 differential seat angle that inclined-plane has 2 degree, thrust pad 6 structure have prevent valve rod 2 rotate with stuffing box 5 produce scratch, reduce the effect of friction, can also seal action be played, when valve pocket pressure is higher simultaneously, this thrust pad 6 sealability is better. and it is dark that this thrust pad 6 can solve high pressure valve stuffing box depth requirements, the unfavorable present situation that pretightening force is large, pressure is higher, and its superiority is more remarkable.The utility model thrust pad 6 is once sealing, stem packing 51 is secondary seal, therefore filler 51 number of plies reduces relatively, can be reduced to 3 layers by original 5 layers, reduces about 40%, pretightening force also reduces relatively, during the intelligent control such as namely valve rod 2 easily can reduce relatively with the friction torque of filler 51, and moment of torsion reduces needs use electronic, pneumatic, the final controlling element cost of valve can significantly reduce, the competitive strength of enterprise in the same industry of competing.
Described stem head 21 is also provided with electrostatic equipment 22.
Be provided with mounting hole in the middle of described stuffing box 5, described stem head 21 is connected with spheroid 3 through mounting hole, and the connection of described mounting hole and stem head 21 goes out also to be provided with sliding bearing 23.
Also be provided with spring seat 12 between described valve body 1 and valve seat 11, in described spring seat 12, be provided with spring, between described spring seat 12 and valve seat 11, be also provided with seal ring 13.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. one kind has the low torque ball valve of thrust pad, comprise valve body (1), valve seat (11), valve rod (2), spheroid (3) and actuator (4), described valve body (1) top is provided with stuffing box (5), described stuffing box (5) is provided with packing cavity, filler (51) is provided with in described packing cavity, described valve rod (2) front end is provided with stem head (21), it is characterized in that, described stem head (21) is provided with thrust pad (6) with the joint of valve rod (2) and stuffing box (5), described thrust pad (6) is wedge-shaped structure, there is the tilt angle (7) that the number of degrees are 2 ° in the thrust pad (6) of described wedge shape and the surface of contact of stuffing box (5).
2. a kind of low torque ball valve with thrust pad according to claim 1, is characterized in that, described filler (51) number of plies is 3 layers.
3. a kind of low torque ball valve with thrust pad according to claim 1, is characterized in that, described stem head (21) is also provided with electrostatic equipment (22).
4. a kind of low torque ball valve with thrust pad according to claim 1, it is characterized in that, mounting hole is provided with in the middle of described stuffing box (5), described stem head (21) is connected with spheroid (3) through mounting hole, and the connection of described mounting hole and stem head (21) goes out also to be provided with sliding bearing (23).
5. a kind of low torque ball valve with thrust pad according to claim 1, it is characterized in that, described packing cavity is provided with gland (52), and described gland (52) is provided with pressing plate (53), and described pressing plate (53) is arranged on stuffing box (5) by bolt.
6. a kind of low torque ball valve with thrust pad according to claim 1, it is characterized in that, spring seat (12) is also provided with between described valve body (1) and valve seat (11), be provided with spring in described spring seat (12), between described spring seat (12) and valve seat (11), be also provided with seal ring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521056671.6U CN205226446U (en) | 2015-12-17 | 2015-12-17 | Low moment of torsion ball valve with thrust pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521056671.6U CN205226446U (en) | 2015-12-17 | 2015-12-17 | Low moment of torsion ball valve with thrust pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205226446U true CN205226446U (en) | 2016-05-11 |
Family
ID=55901513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521056671.6U Active CN205226446U (en) | 2015-12-17 | 2015-12-17 | Low moment of torsion ball valve with thrust pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205226446U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909818A (en) * | 2016-06-16 | 2016-08-31 | 五洲阀门股份有限公司 | Anti-corrosion ball valve and manufacturing method thereof |
| CN113863887A (en) * | 2021-09-22 | 2021-12-31 | 北京捷杰西石油设备有限公司 | IBOP for top drive |
-
2015
- 2015-12-17 CN CN201521056671.6U patent/CN205226446U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909818A (en) * | 2016-06-16 | 2016-08-31 | 五洲阀门股份有限公司 | Anti-corrosion ball valve and manufacturing method thereof |
| CN113863887A (en) * | 2021-09-22 | 2021-12-31 | 北京捷杰西石油设备有限公司 | IBOP for top drive |
| CN113863887B (en) * | 2021-09-22 | 2023-10-13 | 北京捷杰西石油设备有限公司 | IBOP for top drive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |