CN209278507U - A kind of low temperature resistant butterfly valve - Google Patents
A kind of low temperature resistant butterfly valve Download PDFInfo
- Publication number
- CN209278507U CN209278507U CN201821710252.3U CN201821710252U CN209278507U CN 209278507 U CN209278507 U CN 209278507U CN 201821710252 U CN201821710252 U CN 201821710252U CN 209278507 U CN209278507 U CN 209278507U
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- CN
- China
- Prior art keywords
- valve
- gland
- low temperature
- temperature resistant
- sealing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of low temperature resistant butterfly valves, including valve body, gland, butterfly plate, valve rod, the valve plate is mounted on valve inner, the gland is arranged in the valve body upper end, the valve rod sequentially passes through gland, valve body upper end and valve plate, and the butterfly plate is fixedly connected with valve rod by clamping screw, sealing axle sleeve is provided between the gland and valve body, the valve rod passes through the sealing axle sleeve, airtight and watertight padding is provided between the gland and the valve rod, resettlement groove is equipped in the valve plate arc end face outside, sealing ring is installed on the resettlement groove, the utility model structure is simple, sealing effect is good, with good lower temperature resistance.
Description
Technical field
The utility model relates to a kind of butterfly valves, are specifically a kind of low temperature resistant butterfly valves.
Background technique
In the prior art, for butterfly valve frequently with nonmetallic materials, the coefficient of expansion is larger so that shrinkage when its low temperature with
The shrinkage of the matching pieces such as metal sealing, valve body differs greatly, and seriously reduces so as to cause seal pressure, is as a result easy to cause close
Seal the result of failure.
Utility model content
In view of the problems of the existing technology, the utility model proposes a kind of good airproof performances, low temperature resistant butterfly valve.
The utility model solves the technical solution of the above technical problem: providing a kind of low temperature resistant butterfly valve, including valve body, pressure
Lid, butterfly plate, valve rod, the valve plate are mounted on valve inner, and the gland is arranged in the valve body upper end, and the valve rod successively passes through
Gland, valve body upper end and valve plate are worn, and the butterfly plate is fixedly connected with valve rod by clamping screw, in the gland and valve body
Between be provided with sealing axle sleeve, the valve rod passes through the sealing axle sleeve, is provided with sealing between the gland and the valve rod and fills out
Material is equipped with resettlement groove in the valve plate arc end face outside, is equipped with sealing ring on the resettlement groove.
The technical solution that the utility model further limits are as follows:
It is above-mentioned that elastic alloy sealing ring compatible with sealing ring is equipped on valve inner inner wall.
Above-mentioned in airtight and watertight padding includes upper filler and lower filler, and is arranged between upper filler and lower filler flexible
Washer.
Sealing ring above-mentioned is made of polytrifluorochloroethylene sealing material.
Valve plate above-mentioned is eccentric structure.
The utility model has the beneficial effects that the utility model valve plate is eccentric structure, it is ensured that more Guan Yue when valve plate is closed
Tightly, sealing performance is reliable, is provided with airtight and watertight padding between gland and valve rod, and airtight and watertight padding includes upper filler and lower filler, and
And it is provided with elastic washer between upper filler and lower filler, it can play the role of reinforcing valve rod, while preventing to leak
Problem is equipped with sealing ring on the outside of valve plate arc, and valve inner inner wall is close equipped with elastic alloy compatible with sealing ring
Seal ring greatly improves its sealing effect so that valve plate and valve interior wall form spherical seal surface；Sealing ring is poly- trifluoro chloroethene
Alkene sealing material is made, and is avoided that being hardened under condition of ultralow temperature becomes fragile, and guarantees the reliability of sealing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
Embodiment 1
The present embodiment provides a kind of low temperature resistant butterfly valve, structure as shown in Figure 1, include valve body 1, gland 2, butterfly plate 5, valve rod 4,
Valve plate is eccentric structure, and valve plate 5 is mounted on inside valve body 1, gland 2 be arranged in 1 upper end of valve body, valve rod 4 sequentially pass through gland 2,
1 upper end of valve body and valve plate 5, and butterfly plate is fixedly connected with valve rod by clamping screw, and sealing is provided between gland 2 and valve body 1
Axle sleeve 3, valve rod pass through the sealing axle sleeve 3, airtight and watertight padding are provided between gland and valve rod, airtight and watertight padding includes upper 6 He of filler
Lower filler 7, and it is provided with elastic washer 8 between upper filler and lower filler, placement is equipped in valve plate arc end face outside
Slot is equipped with sealing ring 10 on resettlement groove, and sealing ring is made of polytrifluorochloroethylene sealing material, on valve inner inner wall
Spherical surface elastic alloy sealing ring 9 is used equipped with compatible with sealing ring.
The present embodiment valve plate be eccentric structure, it is ensured that valve plate close when the more close the more tight, sealing performance is reliable, gland with
Airtight and watertight padding is provided between valve rod, airtight and watertight padding includes upper filler and lower filler, and is set between upper filler and lower filler
It is equipped with elastic washer, can play the role of reinforcing valve rod, while preventing leakage problem, is equipped on the outside of valve plate arc close
Seal, and valve inner inner wall is equipped with elastic alloy sealing ring compatible with sealing ring, so that valve plate and valve interior wall shape
At spherical seal surface, its sealing effect is greatly improved；Sealing ring is made of polytrifluorochloroethylene sealing material, is avoided that ultralow
Being hardened under the conditions of temperature becomes fragile, and guarantees the reliability of sealing.
In addition to the implementation, the utility model can also have other embodiments, all to use equivalent replacement or equivalent change
The technical solution to be formed is changed, the protection scope of the requires of the utility model is all fallen within.
Claims (5)
1. a kind of low temperature resistant butterfly valve, including valve body, gland, butterfly plate, valve rod, which is characterized in that the butterfly plate is mounted in valve body
Portion, the gland are arranged in the valve body upper end, and the valve rod sequentially passes through gland and valve body upper end, and with the butterfly plate
Side wall is fixedly connected by clamping screw, sealing axle sleeve is provided between the gland and valve body, it is close that the valve rod passes through this
Axle sleeve is sealed, is provided with airtight and watertight padding between the gland and the valve rod, placement is equipped in the valve plate arc end face outside
Slot is equipped with sealing ring on the resettlement groove.
2. low temperature resistant butterfly valve according to claim 1, it is characterised in that: be equipped with and sealing on the valve inner inner wall
Enclose compatible elastic alloy sealing ring.
3. low temperature resistant butterfly valve according to claim 1, it is characterised in that: the airtight and watertight padding include upper filler and under fill out
Material, and elastic washer is provided between upper filler and lower filler.
4. low temperature resistant butterfly valve according to claim 1, it is characterised in that: the sealing ring is polytrifluorochloroethylene sealing material
Material is made.
5. low temperature resistant butterfly valve according to claim 1, it is characterised in that: the valve plate is eccentric structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821710252.3U CN209278507U (en) | 2018-10-22 | 2018-10-22 | A kind of low temperature resistant butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821710252.3U CN209278507U (en) | 2018-10-22 | 2018-10-22 | A kind of low temperature resistant butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209278507U true CN209278507U (en) | 2019-08-20 |
Family
ID=67599070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821710252.3U Expired - Fee Related CN209278507U (en) | 2018-10-22 | 2018-10-22 | A kind of low temperature resistant butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209278507U (en) |
-
2018
- 2018-10-22 CN CN201821710252.3U patent/CN209278507U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190820 Termination date: 20211022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |