CN101598235A - A kind of union connects bellows stop valve - Google Patents
A kind of union connects bellows stop valve Download PDFInfo
- Publication number
- CN101598235A CN101598235A CNA2008100384773A CN200810038477A CN101598235A CN 101598235 A CN101598235 A CN 101598235A CN A2008100384773 A CNA2008100384773 A CN A2008100384773A CN 200810038477 A CN200810038477 A CN 200810038477A CN 101598235 A CN101598235 A CN 101598235A
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- valve
- mechanical connection
- stem mut
- bellows
- union
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Abstract
A kind of union connects bellows stop valve, relates to a kind of stop valve.Comprise that union connects valve body, built-up welding Co base cemented carbide seal ring on the valve body, the active mechanical connection of the dual bellows arrangement of titanizing Austenitic Stainless Steel is below valve rod, handwheel one changes through Stem Mut makes valve rod lifting bar drive titanizing Austenitic Stainless Steel get heavy bellows arrangement lifting, dual robust bellows convenient disassembly, union connects convenient disassembly, and externally connected pipe and seal ring are closed by the union nut, and pipeline is not leaked.Product structure is reasonable, sealing is reliable.Bellows titanizing Austenitic Stainless Steel corrosion resistant, good, the long service life of friction resistant performance are applicable on the pipeline of various operating modes such as pharmacy, fertilizer industry, cut off or connect the pipeline medium.
Description
Technical field:
The present invention relates to a kind of stop valve.
Background technique:
At present, known stop valve, the open-shut device with stop valve are the flaps of plug type, and sealing surface is the plane or the conical surface, the center line moving linearly of flap longshore current body.The movement pattern of valve rod has elevating lever-type.Stop valve only is applicable to standard-sized sheet and complete shut-down, does not allow to do to regulate and throttling.Belong to forced seal formula valve,, do not leak with forced seal face so when valve closing, must exert pressure to flap.When medium enters valve by the flap below, the required resistance that overcomes of steering force is the frictional force of valve rod and filler with by the thrust that pressure produced of medium, the power that the force rate of closing valve is opened valve is big, so it is big that the diameter of valve rod is wanted, otherwise the fault of valve rod bending can take place.
Summary of the invention:
In order to solve stop valve forced seal formula valve, when valve closing, must exert pressure to flap, with the technical problem that forced seal face does not leak, the invention provides a kind of union and connect bellows stop valve.
Technological scheme: a kind of union connects bellows stop valve, comprise valve body, it is characterized in that built-up welding Co base cemented carbide seal ring on the valve body, the active mechanical connection of the dual bellows arrangement of titanizing Austenitic Stainless Steel is below valve rod, contact the convex-concave place with valve gap by high temperature resistant pad embedding bolt spring pad nut mechanical connection by connecing valve body, put down in the stuffing box on the valve gap Packing seat filler by Gland with the jack screw on the valve gap by very heavy nut mechanical connection, the valve rod top fits over mechanical connection in the Stem Mut, Stem Mut fits in the handwheel by the key mechanical connection, handwheel one changes through Stem Mut makes the valve rod lifting bar drive the dual bellows arrangement lifting of titanizing Austenitic Stainless Steel, valve gap top endoporus is joined the Stem Mut mechanical connection, outer tennis partner wheel is embedded by Stem Mut tightening nut mechanical connection by key on the Stem Mut, externally connected pipe and seal ring by union nut mechanical connection.
Technique effect: owing to adopt such scheme, simple in structure, easy for installation, dual robust bellows convenient disassembly, union connects convenient disassembly, and product structure is reasonable, sealing is reliable, dual robust sylphon seal design guarantees the zero leakage of valve rod.Do not have fluid loss, reduce energy loss, improve safety of factory equipment.Sealing surface weld deposit Co base cemented carbide, wear-resisting, corrosion resistant, good, the long service life of friction resistant performance, bellows titanizing Austenitic Stainless Steel is wear-resisting, corrosion resistant, good, the long service life of friction resistant performance, modified and the surfaces nitrided processing of valve rod has good anti-corruption and friction resistant performance; The indication of valve rod lifting position is closed externally connected pipe and seal ring by the union nut, pipeline is not leaked.Be applicable on the pipeline of various operating modes such as pharmacy, fertilizer industry, cut off or connect the pipeline medium.
Description of drawings:
Fig. 1 is the schematic representation of the embodiment of the invention.
Embodiment:
The present invention is further described below in conjunction with drawings and Examples.
In the drawings: 1. union connects valve body, 2. built-up welding Co base cemented carbide seal ring, the 3. dual bellows arrangement of titanizing Austenitic Stainless Steel, 4. valve rod, 5. high temperature resistant pad, 6. bolt, 7. compression spring, 8. nut, 9. jack screw, 10. very heavy nut, 11. valve gaps, 12. Stem Muts, 13. handwheel, 14. Stem Mut tightening nuts, 15. keys, 16. Gland, 17. fillers, 18. times Packing seats, 19. the union nut, 20. seal rings, 21. externally connected pipe.
In example shown in Figure 1: union connects built-up welding Co base cemented carbide seal ring 2 on the valve body 1, sealing surface weld deposit Co base cemented carbide, wear-resisting, corrosion resistant, the friction resistant performance is good, long service life, the dual bellows arrangement 3 active mechanical connections of titanizing Austenitic Stainless Steel are below valve rod 4, bellows titanizing Austenitic Stainless Steel is wear-resisting, corrosion resistant, the friction resistant performance is good, long service life, union connection valve body 1 contacts the convex-concave place and embeds with bolt 6 compression springs 7 nuts 8 fastening by high temperature resistant pad 5 with valve gap 11, putting down Packing seat 18 in the stuffing box on the valve gap 11 is tightened up by the jack screw 9 on the Gland 16 usefulness valve gaps 11 filler 17 by very heavy nut 10 adjustment, valve rod 4 tops fit in the Stem Mut 12, Stem Mut 12 fits in the handwheel 13 consolidates it by key 15, handwheel 13 1 changes through Stem Mut 12 makes valve rod 4 lifting bars drive dual bellows arrangement 2 liftings of titanizing Austenitic Stainless Steel, forced seal face does not leak, valve gap 11 top endoporus are joined Stem Mut 12, on the Stem Mut 12 outer tennis partner take turns 13 by key 15 embed by Stem Mut tightening nut 14 solid it, on valve gap 11, rotate.Externally connected pipe 21 and seal ring 20 are closed by union nut 19, pipeline is not leaked.
Claims (2)
1. a union connects bellows stop valve, comprise valve body, it is characterized in that built-up welding Co base cemented carbide seal ring on the valve body, the active mechanical connection of the dual bellows arrangement of titanizing Austenitic Stainless Steel is below valve rod, valve body contacts the convex-concave place and is embedded with bolt spring pad nut mechanical connection by high temperature resistant pad with valve gap, put down in the stuffing box on the valve gap Packing seat filler by Gland with the jack screw on the valve gap by very heavy nut mechanical connection, the valve rod top fits over mechanical connection in the Stem Mut, Stem Mut fits in the handwheel by the key mechanical connection, handwheel one changes through Stem Mut makes the valve rod lifting bar drive the dual bellows arrangement lifting of titanizing Austenitic Stainless Steel, valve gap top endoporus is joined the Stem Mut mechanical connection, and outer tennis partner's wheel is embedded by Stem Mut tightening nut mechanical connection by key on the Stem Mut.
2. a kind of union according to claim 1 connects bellows stop valve, it is characterized in that externally connected pipe and seal ring by union nut mechanical connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100384773A CN101598235A (en) | 2008-06-03 | 2008-06-03 | A kind of union connects bellows stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100384773A CN101598235A (en) | 2008-06-03 | 2008-06-03 | A kind of union connects bellows stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101598235A true CN101598235A (en) | 2009-12-09 |
Family
ID=41419780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100384773A Pending CN101598235A (en) | 2008-06-03 | 2008-06-03 | A kind of union connects bellows stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101598235A (en) |
-
2008
- 2008-06-03 CN CNA2008100384773A patent/CN101598235A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091209 |