CN201487268U - Wear-resistant ceramic knife gate valve - Google Patents
Wear-resistant ceramic knife gate valve Download PDFInfo
- Publication number
- CN201487268U CN201487268U CN2009201903753U CN200920190375U CN201487268U CN 201487268 U CN201487268 U CN 201487268U CN 2009201903753 U CN2009201903753 U CN 2009201903753U CN 200920190375 U CN200920190375 U CN 200920190375U CN 201487268 U CN201487268 U CN 201487268U
- Authority
- CN
- China
- Prior art keywords
- valve
- wear
- flashboard
- gate valve
- knife gate
- Prior art date
- 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 wear-resistant ceramic knife gate valve, which comprises a valve body, a valve disc, a valve stem, a hand wheel, a support, a seal part and mounting parts. The wear-resistant ceramic knife gate valve is characterized in that ceramic bushings are mounted in valve body passages on two sides of the valve disc, the ceramic bushings and the valve disc are engaged to form a seal pair, and the valve disc is made of stain less steel with the surface coated with a nitride layer. The wear-resistant ceramic knife gate valve has the advantages of wear resistance, reliable seal, long service life and the like, and is adaptable to switch equipment on abrasive medium working conditions such as particles, slag, ore pulp and the like.
Description
Technical field
The utility model relates to a kind of valve, particularly about a kind of knife-shape gate valve.
Background technique
Knife-shape gate valve comprises valve body, flashboard, valve rod, driving mechanism, support, Sealing and assembling set.As publication number is the knife-shape gate valve of CN2384057, a side of its flashboard contacts with valve body sealing surface, the bottom of another side is angular surface type, this inclined-plane contacts with the voussoir that compresses that is positioned at the through hole bottom, close the foul that can strike off sealing surface in the closed procedure automatically at gate valve, reduce wearing and tearing sealing surface.Its shortcoming is: have bigger wearing and tearing in the using process between valve channel, flashboard and the valve base sealing surface of contact, poor sealing performance, product weak point in working life.
Summary of the invention
The purpose of this utility model is the shortcoming that exists at prior art, and the wear-resistant ceramic knife-shape gate valve of a kind of good seal performance, long product lifecycle is provided.
The technical solution of the utility model comprises valve body, flashboard, valve rod, handwheel, support, Sealing and assembling set, mainly be in the valve channel of flashboard both sides, ceramic chamber lining to be installed, complement each other to form sealing pair between this ceramic chamber lining and the flashboard, flashboard has the corrosion resistant plate of nitride layer for the surface.
The utility model beneficial effect compared with prior art is that valve body sealing surface and medium contact component are made up of ceramic chamber lining, and flashboard adopts stainless steel material to handle through nitriding process, has advantages such as wear-resistant, that sealing is reliable, the life-span is long.
Description of drawings
Fig. 1 is a structure sectional view of the present utility model.
Has mode of execution
Wear-resistant ceramic knife-shape gate valve as shown in Figure 1 comprises valve body 1, flashboard 3, valve rod 7, handwheel 11, support 8, Sealing and assembling set.Handwheel 11 is connected by Stem Mut 9 with valve rod 7, and this Stem Mut 9 is installed on the support 8 by bearing 10, and fixedlys connected with handwheel 11, is threaded with valve rod 7.Fixedlying connected by bearing pin 6 with the lower end of valve rod 7 in the upper end of flashboard 3, and is sealed by filler 4 between the valve body 1, and this filler 4 is installed in the valve body 1 by Gland 5.Ceramic chamber lining 2 is installed in valve body 1 passage of flashboard 3 both sides, is complemented each other to form sealing pair between this ceramic chamber lining 2 and the flashboard 3, flashboard 3 is surperficial corrosion resistant plate with nitride layer, improves the wear-resisting property of pipeline and flashboard 3 sealing pairs.Flashboard 3 outlet side Lower Half edges are shaped on the wedge shape inclined-plane, and this wedge shape inclined-plane cooperatively interacts with the inclined-plane of outlet side ceramic chamber lining bottom and contacts, and apply sealing force for flashboard 3.
Claims (1)
1. wear-resistant ceramic knife-shape gate valve, comprise valve body (1), flashboard (3), valve rod (7), handwheel (11), support (8), Sealing and assembling set, it is characterized in that in valve body (1) passage of flashboard (3) both sides, installing ceramic chamber lining (2), complement each other to form sealing pair between this ceramic chamber lining (2) and the flashboard (3), flashboard (3) has the corrosion resistant plate of nitride layer for the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201903753U CN201487268U (en) | 2009-08-03 | 2009-08-03 | Wear-resistant ceramic knife gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201903753U CN201487268U (en) | 2009-08-03 | 2009-08-03 | Wear-resistant ceramic knife gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201487268U true CN201487268U (en) | 2010-05-26 |
Family
ID=42426147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201903753U Expired - Fee Related CN201487268U (en) | 2009-08-03 | 2009-08-03 | Wear-resistant ceramic knife gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201487268U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482235B (en) * | 2014-12-17 | 2017-01-04 | 河南盛誉实业有限公司 | A kind of knife gate valve |
| CN112762183A (en) * | 2021-01-14 | 2021-05-07 | 纽康阀门(上海)有限公司 | Self-flushing super-wear-resistant slurry knife gate valve |
| CN114135697A (en) * | 2021-12-03 | 2022-03-04 | 浙江新博阀门有限公司 | Multi-cutter gate valve |
-
2009
- 2009-08-03 CN CN2009201903753U patent/CN201487268U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482235B (en) * | 2014-12-17 | 2017-01-04 | 河南盛誉实业有限公司 | A kind of knife gate valve |
| CN112762183A (en) * | 2021-01-14 | 2021-05-07 | 纽康阀门(上海)有限公司 | Self-flushing super-wear-resistant slurry knife gate valve |
| CN114135697A (en) * | 2021-12-03 | 2022-03-04 | 浙江新博阀门有限公司 | Multi-cutter gate valve |
| CN114135697B (en) * | 2021-12-03 | 2024-03-26 | 浙江新博阀门有限公司 | Multi-pass knife gate 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20170803 |