CN203453607U - Single-seat regulating valve - Google Patents
Single-seat regulating valve Download PDFInfo
- Publication number
- CN203453607U CN203453607U CN201320575990.2U CN201320575990U CN203453607U CN 203453607 U CN203453607 U CN 203453607U CN 201320575990 U CN201320575990 U CN 201320575990U CN 203453607 U CN203453607 U CN 203453607U
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- China
- Prior art keywords
- filler
- valve
- regulating valve
- seat
- valve rod
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a single-seat regulating valve. The single-seat regulating valve is mainly used for solving the problems of an existing regulating valve, such as bad sealing effect and high leakage rate. The single-seat regulating valve is characterized in that fillers include multiple layers of fillers made from different materials. The single-seat regulating valve has the advantages that the multiple layers of mixed fillers are adopted to improve the sealing property of the fillers to a valve rod and prevent the leakage of the regulating valve.
Description
Technical field
The utility model relates to a kind of valve, is specifically related to a kind of single-seat adjusting valve.
Background technique
Modulating valve, has another name called control valve, in industrial automation process control field, by accepting the control signal of regulation unit output, removes to change the final control unit of the process parameters such as rate-of flow, pressure, temperature, liquid level by power operation.In the higher control system of automaticity, modulating valve is usually used as the terminal actuating device of automatic regulating system, reception control signal according to the desired direction of control signal and size, changes the resistance system of valve by changing spool stroke, reach the object of adjust flux.
In modulating valve, each sealing place all needs to bear larger pressure difference, and therefore a lot of existing modulating valve all exist sealing effect bad, the problem easily leaking.
Model utility content
In order to overcome the deficiency of background technique, the utility model provides a kind of single-seat adjusting valve, solves existing modulating valve sealing effect bad, the problem easily leaking.
The technological scheme that the utility model adopts: a kind of single-seat adjusting valve, comprises actuator, valve body, valve seat, spool, valve gap, valve rod, filler, Gland and pressing plate; Described valve gap is provided with the groove suitable with valve rod; Described valve rod is through valve gap, and one end connects spool, and the other end connects actuator; Between described valve gap and valve rod, have stuffing box, described filler is placed in stuffing box; The filler that described filler comprises multiple layers of different materials.
Described filler comprises filler, middle filler, lower filler, and described upper filler and the material of middle filler are teflon, and the material of lower filler is 304 stainless steels.
Described Gland inner and outer wall is equipped with circular groove, is provided with O RunddichtringO in described circular groove.
In described valve body, be provided with guide sleeve, described spool upper end and guide sleeve are suitable.
The part that described valve rod stretches out valve gap is provided with pointer, and described pointer side is provided with direction board, described pointed direction board.
The beneficial effects of the utility model are: adopt above scheme, adopt the form filler of multi layered hybrid materials, improved the sealability of filler to valve rod, prevent that modulating valve from leaking.
Accompanying drawing explanation
Fig. 1 is the utility model example structure schematic diagram.
Fig. 2 is the enlarged view of A in Fig. 1.
1-valve body in figure, 2-valve seat, 3-spool, 4-guide sleeve seat, 5-guide sleeve, 6-valve gap, filler under 7-, filler in 8-, the upper filler of 9-, 10-Gland, 11-pressing plate, 12 valve rods, 13-O RunddichtringO ，14-actuator, 15-pointer, 16-direction board.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
As shown in Figures 1 and 2, a kind of single-seat adjusting valve, comprises actuator 14, valve body 1, valve seat 2, spool 3, valve gap 6, valve rod 12, filler, Gland 10 and pressing plate 11; Described valve gap 6 is provided with the groove suitable with valve rod 12; Described valve rod 12 is through valve gap 6, and one end connects spool 3, and the other end connects actuator 14; Between described valve gap 6 and valve rod 12, have stuffing box, described filler is placed in stuffing box; The filler that described filler comprises multiple layers of different materials, adopts multipotency mixed fillers form can improve the sealability of filler to valve rod 12, with this, reduces the problem that modulating valve leaks.
Described filler comprises filler 9, middle filler 8, lower filler 7, and described upper filler 9 and the material of middle filler 8 are teflon, and the material of lower filler 7 is 304 stainless steels, teflon has stronger heat-resisting ability, and friction factor is extremely low, rotation valve rod 12 is lighter, can be not stuck; 304 stainless steels have decay resistance, stronger heat-resisting ability.
Described Gland 10 inner and outer walls are equipped with circular groove, are provided with O RunddichtringO 13 in described circular groove, and O RunddichtringO 13, for second layer sealing, has further been strengthened sealing effect.
In described valve body 1, be provided with guide sleeve 5, described spool 3 upper ends and guide sleeve 5 are suitable, and described guide sleeve 5 is that spool 3 location are mobile, again guarantees its sealing effect.
The part that described valve rod 12 stretches out valve gap 6 is provided with pointer 15, and described pointer 15 sides are provided with direction board 16, and described pointer 15 points to direction board 16, and pointer 15 can be pointed out the residing state of single-seat adjusting valve more intuitively with direction board 16.
Claims (5)
1. a single-seat adjusting valve, comprises actuator (14), valve body (1), valve seat (2), spool (3), valve gap (6), valve rod (12), filler, Gland (10) and pressing plate (11); Described valve gap (6) is provided with the groove suitable with valve rod (12); Described valve rod (12) is through valve gap (6), and one end connects spool (3), and the other end connects actuator (14); Between described valve gap (6) and valve rod (12), have stuffing box, described filler is placed in stuffing box; It is characterized in that: described filler comprises the filler of multiple layers of different materials.
2. single-seat adjusting valve according to claim 1, it is characterized in that: described filler comprises filler (9), middle filler (8), lower filler (7), described upper filler (9) and the material of middle filler (8) are teflon, and the material of lower filler (7) is 304 stainless steels.
3. single-seat adjusting valve according to claim 1, is characterized in that: described Gland (10) inner and outer wall is equipped with circular groove, is provided with O RunddichtringO (13) in described circular groove.
4. single-seat adjusting valve according to claim 1, is characterized in that: in described valve body (1), be provided with guide sleeve (5), described spool (3) upper end and guide sleeve (5) are suitable.
5. single-seat adjusting valve according to claim 1, it is characterized in that: the part that described valve rod (12) stretches out valve gap (6) is provided with pointer (15), described pointer (15) side is provided with direction board (16), and described pointer (15) points to direction board (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320575990.2U CN203453607U (en) | 2013-09-17 | 2013-09-17 | Single-seat regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320575990.2U CN203453607U (en) | 2013-09-17 | 2013-09-17 | Single-seat regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203453607U true CN203453607U (en) | 2014-02-26 |
Family
ID=50133483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320575990.2U Expired - Fee Related CN203453607U (en) | 2013-09-17 | 2013-09-17 | Single-seat regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203453607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246939A (en) * | 2016-07-01 | 2016-12-21 | 上海申吉仪表有限公司 | Pneumatic control valve |
-
2013
- 2013-09-17 CN CN201320575990.2U patent/CN203453607U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246939A (en) * | 2016-07-01 | 2016-12-21 | 上海申吉仪表有限公司 | Pneumatic control 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: 20140226 Termination date: 20190917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |