CN2898505Y - Rotary lining check valve - Google Patents
Rotary lining check valve Download PDFInfo
- Publication number
- CN2898505Y CN2898505Y CN 200620041092 CN200620041092U CN2898505Y CN 2898505 Y CN2898505 Y CN 2898505Y CN 200620041092 CN200620041092 CN 200620041092 CN 200620041092 U CN200620041092 U CN 200620041092U CN 2898505 Y CN2898505 Y CN 2898505Y
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- valve
- valve body
- flap
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- utility
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- Expired - Fee Related
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Abstract
The utility model relates to a rotary lining check valve which comprises a valve body, a valve flap, and a valve cover, and the valve flap is arranged in the valve body. The utility model is characterized in that the sealing surface of the valve flap is close to the sealing surface of the valve body with an angle from 20 degrees to 60 degrees, and the head of the valve flap is arranged at the prove of the valve body through the valve cover and connected with a bolt, and fluoroplastic is lined in the valve body. The utility model has the advantages of good sealing performance, long life-span, and improving the corrosion resistance, temperature resistance, and wear resistance of the valve greatly.
Description
Technical field
The utility model relates to a kind of lining Swing check valve, is used for industries such as oil, chemical industry, agricultural chemicals, medicine, and medium is on the pipeline of strong acid, highly basic class corrosive fluid, and the device as opening and closing belongs to valve technology field.
Background technique
Present Swing check valve as shown in Figure 1, form by valve body 1, flap 2, rocking bar 3, valve gap 4, valve housing is generally made by cast iron, carbon steel, stainless steel material, flap 2 usefulness nuts are fixed on the rocking bar 3, flap 2 and rocking bar 3 are fixed on the valve body 1 by a straight pin, valve gap 4 adopts bolt to be connected with valve body 1, and flap 2 can be done the rotation of several angle around straight pin by rocking bar 3, thereby reaches the purpose that opens and closes automatically valve under the effect of medium.
This valve reason carbon steel is made, thereby has limited the application of this valve on strong acid, highly basic class corrosive fluid pipeline, and valve body 1 pipeline is a circular arc, there is low-lying place, medium is stored in the valve body easily, especially to medicine, food service industry, influences hygienic requirements.
Summary of the invention
The purpose of this utility model is a kind of good seal performance of invention, and long service life can significantly improve the lining Swing check valve of valve corrosion resistance, temperature tolerance and abrasion resistance.
For realizing above purpose, the technical solution of the utility model provides a kind of lining Swing check valve, form by valve body, flap, valve gap, flap places in the valve body, it is characterized in that, the flap sealing surface is near valve body sealing surface, and be 20-60 ° of angle of inclination, the flap head is located in the groove of valve body by valve gap, and connects inner lining fluoroplastics in valve body with bolt.
Described valve body is shaped as direct current type, and its bottom is a level.
The utility model can serve as a contrast in the non-return valve housing reliably according to the plasticity principle of fluoroplastic, and the outside carbon steel that adopts reduces production costs so greatly.And the excellent corrosion resistance of fluoroplastic, temperature tolerance, non-viscosity and electrical insulating property, industrial specific (special) requirements such as oil, chemical industry, agricultural chemicals have been satisfied in the corrosion of ability Strong Acid and Alkali Medium.
The utility model has the advantages that:
1. new material is used
Fluoroplastic have superior corrosion resistance, almost can resist all chemical mediators, comprise the corrosion of red fuming nitric acid (RFNA) and chloroazotic acid, can use for a long time 180 ℃ of following temperature, also have good self lubricity, electrical insulating property, creep resistance and non-viscosity, satisfying medium is the needs of the pipeline of strong acid, highly basic class corrosive fluid;
2. new structure new process
Valve body of the present utility model is shaped as direct current type, has changed the flow channel shape of Swing check valve, and the bottom does not have sediments, and this is extremely important for medicine, food, chemical industry, and beautiful shape, physical dimension are short and small, compact, have saved material.
Description of drawings
Fig. 1 is former lining Swing check valve structural representation;
Fig. 2 is the utility model lining Swing check valve structural representation;
Fig. 3 is the valve body structure schematic representation.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment
As shown in Figure 2, be the utility model lining Swing check valve structural representation, Swing check valve is made up of valve body 5, flap 6, valve gap 7 in the described end liner.
With cast model casting valve body 5, valve gap 7, described valve body 5 is shaped as direct current type, and its bottom is a level, as shown in Figure 3, does not have low-lying place, and reach medium and do not remain in the interior purpose of runner,
Carry out inner lining fluoroplastics 8 with die pressing on the valve body 5 that processes, flap 6 places in the valve body 5, and flap 6 sealing surfaces are near valve body 5 sealing surfaces, and be 35 ° of angles of inclination, valve gap 7 is pressed into flap 6 heads in the groove of valve body 5, and connects with bolt, under the effect of fluid at pressure, flap 6 is washed open, pressure disappears, and just closes automatically subsequently, and runner is level and smooth, flow resistance is little, not have the depression position that deposits, good airproof performance, safe and reliable.
The utility model is mainly used on the industrial pipeline of strong acid, highly basic class medium as opening and closing automatically usefulness.
Before the installation, should select corresponding lining Swing check valve according to the pressure on the industrial pipeline, latus rectum, temperature, medium.The utility model can also adapt with it fully according to the connection standard manufacture of each country, makes things convenient for the user to select.
During work, the utility model level on industrial pipeline is installed, and should note the flow direction that the valve body upward arrow is represented, the utility model belongs to automatic valve, and by the opened by pressure of medium with close, medium can not reverse flow.
Claims (2)
1. lining Swing check valve, form by valve body (5), flap (6), valve gap (7), flap (6) places in the valve body (5), it is characterized in that, flap (6) sealing surface is near valve body (5) sealing surface, and is 20-60 ° of angle of inclination, and flap (6) head is located in the groove of valve body (5) by valve gap (7), and connect inner lining fluoroplastics (8) in valve body (8) with bolt.
2. lining Swing check valve according to claim 1 is characterized in that, described valve body (5) is shaped as direct current type, and its bottom is a level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620041092 CN2898505Y (en) | 2006-04-17 | 2006-04-17 | Rotary lining check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620041092 CN2898505Y (en) | 2006-04-17 | 2006-04-17 | Rotary lining check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2898505Y true CN2898505Y (en) | 2007-05-09 |
Family
ID=38073838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620041092 Expired - Fee Related CN2898505Y (en) | 2006-04-17 | 2006-04-17 | Rotary lining check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2898505Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832412A (en) * | 2010-04-27 | 2010-09-15 | 鞍山市大孤山阀门厂 | Vertical wear-resisting rubber liner check valve |
| CN107631059A (en) * | 2017-10-23 | 2018-01-26 | 盐城市威隆管夹制造有限公司 | The horizontal single-headed pipeline valve that a kind of anti-non-return water pours in down a chimney |
| CN109595364A (en) * | 2018-11-28 | 2019-04-09 | 中国石油天然气股份有限公司 | A kind of oil recovery well group flow line through ball type single flow device and application method |
-
2006
- 2006-04-17 CN CN 200620041092 patent/CN2898505Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832412A (en) * | 2010-04-27 | 2010-09-15 | 鞍山市大孤山阀门厂 | Vertical wear-resisting rubber liner check valve |
| CN107631059A (en) * | 2017-10-23 | 2018-01-26 | 盐城市威隆管夹制造有限公司 | The horizontal single-headed pipeline valve that a kind of anti-non-return water pours in down a chimney |
| CN109595364A (en) * | 2018-11-28 | 2019-04-09 | 中国石油天然气股份有限公司 | A kind of oil recovery well group flow line through ball type single flow device and application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |