CN202531869U - Flexible-seal dual-valve-seat plunger adjusting valve - Google Patents
Flexible-seal dual-valve-seat plunger adjusting valve Download PDFInfo
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- CN202531869U CN202531869U CN2012201914675U CN201220191467U CN202531869U CN 202531869 U CN202531869 U CN 202531869U CN 2012201914675 U CN2012201914675 U CN 2012201914675U CN 201220191467 U CN201220191467 U CN 201220191467U CN 202531869 U CN202531869 U CN 202531869U
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Abstract
The utility model relates to the technical field of valves, and in particular relates to a flexible-seal dual-valve seat plunger adjusting valve. The flexible-seal dual-valve seat plunger adjusting valve comprises a valve body, a valve core, an upper valve cover, a lower valve cover, a sealing filler, an up-down guide sleeve, a valve rod, an upper valve seat, a lower valve seat, a bottom cover and a connecting piece, and the flexible-seal dual-valve seat plunger adjusting valve is characterized in that grooves are arranged on the inner walls of the upper valve seat and lower valve seat, and valve core rubber sealing rings are arranged in the grooves; and grooves are also arranged on the positioning surfaces of the upper valve seat and lower valve seat connected with the valve body, and valve seat sealing rings are arranged in the grooves. The flexible-seal dual-valve-seat plunger adjusting valve provided by the utility model has good sealing property and long service life, resists high pressure and realizes working pressure up to 32MPa; and the utility model is also suitable for a single-valve-seat plunger adjusting valve.
Description
Technical field
The utility model relates to a kind of valve technology field, a kind of specifically soft seal bivalve seat pillar plug modulating valve.
Background technique
Modulating valve is the regulating controller to the pipeline medium flow; Bivalve seat pillar plug modulating valve comprises bottom, spool, valve body, valve gap, stuffing box packing, Gland, guide sleeve, valve rod, upper valve base, lower valve base and coupling up and down; Its spool adopts integral type double spool structure; Two spools are processed with identical rating curve, make that two circulation passages are realized identical Flow-rate adjustment characteristic up and down, and the sealing effect that two circulation passages are closed simultaneously about reaching.It is thread type that valve seat has following dual mode one usually with being fixedly connected of valve body: valve seat is tightened onto on the valve body through screw thread; Design through different screw threads inclination angle; Can accomplish tight metallic seal between valve body and the valve seat; Between sealing guaranteeing that by being coated with high tenacity screw thread glue this structure installation and maintenance convenience needs special tool(s); The 2nd, compression type: its spool, the closed surface of contact of valve seat adopt taper contact seal, and the working surface of last lower valve base must contact with the working surface up and down of spool simultaneously, lean on the axial force to spool to make sealing surface compact.This pattern requires the machining accuracy height, assembly precision is high, adjustment accuracy is high.In reality processing and assembling, be difficult to guarantee the form and position tolerance of spool, valve seat and spool and valve base chamber.Also to carry out underhand polish in the practical set.Even so, also be difficult to reach seal request.The modulating valve of said structure is short working life in a word, deficiency in economic performance, inconvenience maintenance.
Summary of the inventionThe purpose of the utility model is the shortcoming that exists to existing technology, and a kind of good seal performance is provided,
High pressure resistant, long service life, repair demolition is convenient, the soft seal bivalve seat pillar plug modulating valve that maintenance cost is low.
The purpose of the utility model is to realize like this; Soft seal bivalve seat pillar plug modulating valve according to the utility model; Comprise valve body, spool, bonnet, bottom flange, stuffing box packing, guide sleeve, valve rod, upper valve base, lower valve base, bottom and coupling up and down; It is characterized in that on the inwall of described upper valve base and lower valve base, being provided with groove; The spool rubber seal is set in this groove, on described upper valve base and lower valve base and locating face that valve body is connected, also is provided with groove, and in this groove, valve seat insert is set.
The beneficial effect of the utility model is:
1, because the utility model is provided with the multistage valve seat Mi Quan that cooperatively interacts with double cone shape plunger seal face on valve body, its good seal performance, high pressure resistant, working pressure can reach 32MPa;
2, long service life;
3, spool, valve seat processing request precision are low;
4, assembly technology is simple, and the maintenance duration is short;
5, repair demolition is convenient, and debugging is convenient, and maintenance cost is low
Description of drawings:
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the I portion enlarged view of the utility model Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Like Fig. 1, shown in Figure 2; The soft seal bivalve seat pillar plug modulating valve of the utility model; Comprise valve body 2, spool 7, bonnet 3, bottom flange 1, stuffing box packing 5, guide sleeve 6, valve rod 4, upper valve base 8, lower valve base 11, bottom 12 and coupling up and down, its valve rod 4 upper ends are passed valve gap and can be moved up and down, the stuffing box packing 5 of dosing between valve rod 4 and the valve gap; Realized that sealing prevents to leak outside; It is characterized in that on the inwall of described upper valve base 8 and lower valve base 11, being provided with groove 13, in this groove 13, spool rubber seal 9 is set, the utility model is arranged on its spool rubber seal 9 in the groove 13; Reduced the erosive wear of medium to seal ring effectively, the upper end of its valve rod 4 can connect the pneumatic or electric actuator of different model.
Start actuator, when double spool 7 moved downward with valve rod 4 gradually, the gap between upper and lower valve seat and the double spool 7 was diminishing gradually; The pressure medium that flows through valve is increasing, and flow is reducing, and realizes regulating rate-of flow; When double spool 7 is closed when putting in place; A on the double spool 7, two cylndrical surface of B contact with spool rubber seal 9 in the upper and lower valve seat simultaneously, produce interference fit, have realized the purpose of sealing.
In order to ensure the sealing effect of upper and lower valve seat and valve body 2 surface of contact, the utility model also is provided with groove 14 on described upper valve base 8 and lower valve base 11 and locating face that valve body 2 is connected, and in this groove 14, valve seat insert 10 is set.
The utility model good seal performance, high pressure resistant, working pressure can reach 32MPa, long service life.The utility model also is applicable to single valve seat pillar plug modulating valve.
Claims (1)
1. soft seal bivalve seat pillar plug modulating valve; Comprise valve body, spool, bonnet, bottom flange, stuffing box packing, guide sleeve, valve rod, upper valve base, lower valve base, bottom and coupling up and down; It is characterized in that on the inwall of described upper valve base and lower valve base, being provided with groove; The spool rubber seal is set in this groove, on described upper valve base and lower valve base and locating face that valve body is connected, also is provided with groove, and in this groove, valve seat insert is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201914675U CN202531869U (en) | 2012-05-02 | 2012-05-02 | Flexible-seal dual-valve-seat plunger adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201914675U CN202531869U (en) | 2012-05-02 | 2012-05-02 | Flexible-seal dual-valve-seat plunger adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531869U true CN202531869U (en) | 2012-11-14 |
Family
ID=47133056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201914675U Expired - Fee Related CN202531869U (en) | 2012-05-02 | 2012-05-02 | Flexible-seal dual-valve-seat plunger adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202531869U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333159A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Double-valve-element pneumatic control valve |
| CN106090272A (en) * | 2016-08-26 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | A kind of straight travel range control valve door |
| CN106090251A (en) * | 2016-08-26 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | A kind of anti-wear valve core |
| CN106090271A (en) * | 2016-08-26 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | A kind of control valve realizing zero leakage |
| CN106090250A (en) * | 2016-08-26 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | A kind of corrosion-resistant pressure-regulating valve |
| CN106195410A (en) * | 2016-08-26 | 2016-12-07 | 成都欧浦特控制阀门有限公司 | Pneumatic control valve |
| CN106246940A (en) * | 2016-08-26 | 2016-12-21 | 成都欧浦特控制阀门有限公司 | A kind of plunger piston type valve core |
| CN106286867A (en) * | 2016-08-26 | 2017-01-04 | 成都欧浦特控制阀门有限公司 | A kind of spool for cylinder control valve |
| CN106286957A (en) * | 2016-08-26 | 2017-01-04 | 成都欧浦特控制阀门有限公司 | Through type control valve |
| CN106337946A (en) * | 2016-08-26 | 2017-01-18 | 成都欧浦特控制阀门有限公司 | Scouring-resistant flow control valve |
| CN106678380A (en) * | 2016-08-26 | 2017-05-17 | 成都欧浦特控制阀门有限公司 | Control valve with zero leakage in liquid chlorine charging system |
-
2012
- 2012-05-02 CN CN2012201914675U patent/CN202531869U/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333159A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Double-valve-element pneumatic control valve |
| CN106090272A (en) * | 2016-08-26 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | A kind of straight travel range control valve door |
| CN106090251A (en) * | 2016-08-26 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | A kind of anti-wear valve core |
| CN106090271A (en) * | 2016-08-26 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | A kind of control valve realizing zero leakage |
| CN106090250A (en) * | 2016-08-26 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | A kind of corrosion-resistant pressure-regulating valve |
| CN106195410A (en) * | 2016-08-26 | 2016-12-07 | 成都欧浦特控制阀门有限公司 | Pneumatic control valve |
| CN106246940A (en) * | 2016-08-26 | 2016-12-21 | 成都欧浦特控制阀门有限公司 | A kind of plunger piston type valve core |
| CN106286867A (en) * | 2016-08-26 | 2017-01-04 | 成都欧浦特控制阀门有限公司 | A kind of spool for cylinder control valve |
| CN106286957A (en) * | 2016-08-26 | 2017-01-04 | 成都欧浦特控制阀门有限公司 | Through type control valve |
| CN106337946A (en) * | 2016-08-26 | 2017-01-18 | 成都欧浦特控制阀门有限公司 | Scouring-resistant flow control valve |
| CN106678380A (en) * | 2016-08-26 | 2017-05-17 | 成都欧浦特控制阀门有限公司 | Control valve with zero leakage in liquid chlorine charging system |
| CN106090251B (en) * | 2016-08-26 | 2018-09-28 | 成都欧浦特控制阀门有限公司 | A kind of anti-wear valve core |
| CN106246940B (en) * | 2016-08-26 | 2018-09-28 | 成都欧浦特控制阀门有限公司 | A kind of plunger piston type valve core |
| CN106286867B (en) * | 2016-08-26 | 2018-10-02 | 成都欧浦特控制阀门有限公司 | A kind of spool for cylinder control valve |
| CN106286957B (en) * | 2016-08-26 | 2018-10-12 | 成都欧浦特控制阀门有限公司 | Through type control valve |
| CN106195410B (en) * | 2016-08-26 | 2018-10-12 | 成都欧浦特控制阀门有限公司 | Pneumatic control valve |
| CN106337946B (en) * | 2016-08-26 | 2018-10-12 | 成都欧浦特控制阀门有限公司 | A kind of flow control valve of resistance to erosion |
| CN106090272B (en) * | 2016-08-26 | 2018-11-13 | 成都欧浦特控制阀门有限公司 | A kind of straight travel range control valve door |
| CN106090271B (en) * | 2016-08-26 | 2018-11-13 | 成都欧浦特控制阀门有限公司 | A kind of control valve of achievable zero leakage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20130502 |