CN201992105U - Welding type sandwich valve - Google Patents
Welding type sandwich valve Download PDFInfo
- Publication number
- CN201992105U CN201992105U CN2011200503981U CN201120050398U CN201992105U CN 201992105 U CN201992105 U CN 201992105U CN 2011200503981 U CN2011200503981 U CN 2011200503981U CN 201120050398 U CN201120050398 U CN 201120050398U CN 201992105 U CN201992105 U CN 201992105U
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- valve
- welding type
- valve seat
- type sandwich
- sandwich
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- Expired - Fee Related
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Abstract
A welding type sandwich valve belongs to the technical field of a valve, and comprises a valve body, a valve rod, a flashboard installed in the valve body, a valve cover and valve seats, wherein the valve cover is mounted at one end of the valve body, the valve body is formed by welding an upper body, a middle body and a lower body, the valve seats are arranged between the upper and lower bodies and the flashboard respectively, and a first O-shaped ring and a second O-shaped ring are arranged on the end surfaces where the upper and lower bodies are in contact with the valve seats respectively. Bidirectional sealing can be achieved by the welding type sandwich valve. The welding type sandwich valve is suitable for the sandwich valves with different upper, middle and lower pressure grades and different specifications; the suitable temperature is between 29 DEG C below zero to 150 DEG C; various performance indexes of the product can meet the use requirement after the product is actually used by a user; the maintenance and disassembly are very convenient, the production efficiency is greatly improved, and the reaction effect is good. In addition, the welding type sandwich valve has simplicity in structure, reliable performance and convenience in maintenance and disassembly.
Description
Technical field
The utility model belongs to valve technology field, particularly relates to a kind of two way sealed welding type sandwich valve with floating valve seat, and it is applicable to delivering oil, gas and liquid and serves with pipeline tapping.
Background technique
At present, the sandwich valve of serving for shutoff on the petroleum pipeline is an assembly type, as shown in Figure 2, is that the upper, middle and lower valve body is connected with bolt.Middle valve body and upper and lower valve body contact segment are utilized the sealing of O type circle.This sandwich valve is after every use a period of time, because O type circle damages and is aging, be easy to cause leakage, all need upper and lower valve body is disassembled, reduce valve like this and also greatly reduce working efficiency in the time of working life and change O type circle and carry out the valve maintenance.
The model utility content
At the technical problem of above-mentioned existence, in order to overcome the problem of each replacing seal ring and maintenance, the utility model provides a kind of welding type sandwich valve, solves the problem that the assembly type sandwich valve exists.
The purpose of this utility model is achieved through the following technical solutions:
A kind of welding type sandwich valve, comprise valve body, valve rod and be loaded on the interior flashboard of valve body, also comprise valve gap and valve seat, described valve gap is installed in the valve rod end of valve body, described valve body is welded by upper body, middle body, lower body, be respectively equipped with valve seat between upper and lower body and flashboard, the end face that described upper and lower body contacts with valve seat is respectively equipped with first, second O type circle.
Described valve seat is a floating valve seat, and the end face that contacts with upper body or lower body at described valve seat is provided with first, second groove that is used to place first, second O type circle, and described first, second O type circle exceeds first, second groove end face 1-1.4mm.Be respectively equipped with needle type valve on described upper body and the lower body.
The beneficial effects of the utility model are:
The utility model valve body is welded by upper body, middle body, lower body, the whole connection firmly, is difficult for leaking; At the valve rod end valve gap is installed, changes the outfit, easy to maintenance.
The utility model adopts floating type valve seat, and the upper body of described valve body contacts end face respectively with lower body and is provided with O type circle with valve seat, can reach two way sealed.
The utility model is applicable to the different pressures grade of various high, medium and low voltages, the sandwich valve of all size, Applicable temperature is at-29 ℃～150 ℃, product every performance index after the actual use of user satisfy usage requirement, maintenance, dismounting is very convenient, improved manufacturing efficiency greatly, reaction effect is good.And simple in structure, reliable performance, maintenance and easy accessibility.
Description of drawings
Fig. 1 is the structure sectional view of model utility.
Fig. 2 is the structure sectional view of background technique in the utility model.
Among the figure: 1. valve body, 101. upper bodies, body in 102., 103. lower bodies, 2. valve seat, 3. flashboard, 4. valve rod, 5. valve gap, 6. first groove, 7. second groove, a 8. O type circle, 9. the 2nd O type circle, 10. the 3rd O type circle, 11. needle type valves.
Embodiment
The utility model is described in further detail below by embodiment and accompanying drawing.
Embodiment 1: as shown in Figure 1, the utility model comprises valve body 1, valve rod 4, is loaded on flashboard 3, valve gap 5 and valve seat 2 in the valve body 1, the end face that flashboard 3 contacts with valve seat 2 is provided with the 3rd O type circle 10, described valve gap 5 is installed in valve rod 4 ends of valve body 1, described valve body 1 is welded by upper body 101, middle body 102, lower body 103, in described upper body 101, lower body 103 and 3 on flashboard be respectively equipped with valve seat 2, the end face that contacts with valve seat 2 at described upper and lower body 101,102 is respectively equipped with first, second O type circle 8,9.
Described valve seat 2 is a floating valve seat, the end face that contacts with upper body 101 or lower body 103 at described valve seat 2 is provided with first, second groove 6,7 that is used to place first, second O type circle 8,9, and described first, second O type circle 8,9 exceeds first, second groove 6,7 end face 1.4mm.
For make in the valve body import and the outlet between pressure balance, be respectively equipped with needle type valve 11 on described upper body 101 and the lower body 103.During installation, described flashboard 3 is last dress formula.
The material of described each the O type circle of this example is nitrile butadiene rubber or fluorine rubber, after valve is installed on the pipeline, because the pressure reduction of import and outlet, make the O RunddichtringO of floating valve seat 2 ends apply pretightening force, and reach two way sealed by the piston effect of floating valve seat 2, also can reach low pressure seal simultaneously.When needing to change when the damage of the O of valve seat 2 type circle, only bonnet 5 need be opened taking-up flashboard 3 can reach the purpose of changing seal ring with valve seat 2 taking-ups.
Embodiment 2: this example is identical with embodiment's 1 overall structure, and different is: the first and second O type circles that are arranged in this example in valve seat 2 upper grooves 6 exceed groove 6 end face 1mm.
Embodiment 3: this example is identical with embodiment's 1 overall structure, and different is: the first and second O type circles that are arranged in this example in valve seat 2 upper grooves 6 exceed groove 6 end face 1.2mm.
Claims (3)
1. welding type sandwich valve, comprise valve body, valve rod and be loaded on the interior flashboard of valve body, it is characterized in that: also comprise valve gap and valve seat, described valve gap is installed in the valve rod end of valve body, described valve body is welded by upper body, middle body, lower body, be respectively equipped with valve seat between upper and lower body and flashboard, the end face that described upper and lower body contacts with valve seat is respectively equipped with first, second O type circle.
2. welding type sandwich valve according to claim 1, it is characterized in that: described valve seat is a floating valve seat, the end face that contacts with upper body or lower body at described valve seat is provided with first, second groove that is used to place first, second O type circle, and described first, second O type circle exceeds first, second groove end face 1-1.4mm.
3. welding type sandwich valve according to claim 1 and 2 is characterized in that: be respectively equipped with needle type valve on described upper body and the lower body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200503981U CN201992105U (en) | 2011-02-28 | 2011-02-28 | Welding type sandwich valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200503981U CN201992105U (en) | 2011-02-28 | 2011-02-28 | Welding type sandwich valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201992105U true CN201992105U (en) | 2011-09-28 |
Family
ID=44668595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200503981U Expired - Fee Related CN201992105U (en) | 2011-02-28 | 2011-02-28 | Welding type sandwich valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201992105U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633157A (en) * | 2015-02-27 | 2015-05-20 | 天津绿清管道科技股份有限公司 | Two-piece-type clamping plate valve suitable for pressure tapping and plugging of long-distance pipeline |
| CN109630707A (en) * | 2019-02-25 | 2019-04-16 | 天津绿清管道科技股份有限公司 | Integral splint valve |
-
2011
- 2011-02-28 CN CN2011200503981U patent/CN201992105U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633157A (en) * | 2015-02-27 | 2015-05-20 | 天津绿清管道科技股份有限公司 | Two-piece-type clamping plate valve suitable for pressure tapping and plugging of long-distance pipeline |
| CN109630707A (en) * | 2019-02-25 | 2019-04-16 | 天津绿清管道科技股份有限公司 | Integral splint valve |
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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: 20110928 Termination date: 20140228 |