CN207569235U - A kind of zero leakage cage type regulating valve - Google Patents
A kind of zero leakage cage type regulating valve Download PDFInfo
- Publication number
- CN207569235U CN207569235U CN201721704927.9U CN201721704927U CN207569235U CN 207569235 U CN207569235 U CN 207569235U CN 201721704927 U CN201721704927 U CN 201721704927U CN 207569235 U CN207569235 U CN 207569235U
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- China
- Prior art keywords
- valve
- valve body
- lower sleeve
- zero leakage
- deck
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Abstract
The utility model discloses a kind of zero leakage cage type regulating valves, including valve body, lower sleeve, upper bush, PTFE seal circle, valve plug, valve rod, valve deck, gland and pressing plate, Z-shaped locating slot is offered on lower sleeve, upper bush is fixed on lower sleeve by Z-shaped locating slot and in valve body, PTFE seal circle is set between lower sleeve and upper bush, the valve rod is set at valve body inner axes, the valve plug is set in valve body and is connected with valve stem end, the valve deck is set at body top axle center, packing spring is equipped in the valve deck, the gland is set at the top of valve deck and withstands compression packing spring, the pressing plate fastening is arranged on body top；Sleeve, which is cut, is divided into two and adds between the two soft seal ring; change and be sealed into soft seal firmly; increase O-ring outside valve plug; two parts leakage up and down can effectively be prevented, accomplish intimate zero leakage, using effect is good; it is easy to use; it is repaired without frequent shutdown, service efficiency is high, can take into account that pressure difference is big and zero leakage.
Description
Technical field
The utility model belongs to pipeline valve body field, the good cage type regulating valve of more particularly to a kind of zero leakage, using effect.
Background technology
Valve uses widely in pipeline, and valve classification is very a variety of, and regulating valve is also using very extensive
, regulating valve is typically used in big pressure difference occasion because of the particularity of its structure, big pressure difference using when will appear leakage rate
The problem of big, and this is also the standard that meets the requirements in national standard, is also that can deposit in actual use although meeting national standard
In larger problem, for example some working condition pressure differences are big and require zero leakage, if cannot if traditional regulating valve is used
Meet requirement, really using effect is bad when in use, inconvenient to use, easily breaks down, needs frequent shutdown maintenance,
Service efficiency is low, if can have a kind of regulating valve that can accomplish almost zero leakage, the above problem can solve.
The technical problem to be solved by the present invention is to provide a kind of intimate zero leakage, using effect it is good, easy to use, no
It easily breaks down, the novel cage type regulating valve high without frequent shutdown repair, service efficiency.
Utility model content
To solve, above-mentioned prior art leakage rate is big, using effect is poor, inconvenient to use, easy failure, need to frequently stop
The problems such as machine repairs, service efficiency is low, the utility model adopts the following technical solution：
The utility model provides a kind of zero leakage cage type regulating valve, including valve body, lower sleeve, upper bush, PTFE seal circle,
Valve plug, valve rod, valve deck, gland and pressing plate, the valve body is interior to be equipped with first chamber and second chamber, is opened on the lower sleeve
Equipped with Z-shaped locating slot, the upper bush is fixed on lower sleeve by Z-shaped locating slot and in valve body, the PTFE
Sealing ring be set between lower sleeve and upper bush, the valve rod be set on valve body inner axes at, the valve plug be set on valve body in and with
Valve stem end is connected, and the valve deck is set at body top axle center, and packing spring is equipped in the valve deck, and the gland is set
At the top of valve deck and compression packing spring is withstood, the pressing plate fastening is arranged on body top.
As the improvement to the utility model, O-ring is provided with outside the valve plug.
The beneficial effects of the utility model are：Sleeve incision is divided into two and adds soft seal ring between the two, changes hard
Soft seal is sealed into, increases O-ring outside valve plug, can effectively prevent two parts leakage up and down, accomplish intimate zero leakage, using effect
It is good, it is easy to use, it is repaired without frequent shutdown, service efficiency is high, can take into account that pressure difference is big and zero leakage.
Description of the drawings
Fig. 1 is a kind of structure diagram of embodiment of the utility model.
Fig. 2 is the close-up schematic view of part between upper and lower sleeve in the utility model.
Specific embodiment
The preferred embodiment of the utility model is described in detail below in conjunction with the accompanying drawings.
Referring to Fig. 1, a kind of zero leakage cage type regulating valve, including valve body 1, lower sleeve 21, upper bush 22, PTFE seal circle
3rd, valve plug 4, valve rod 5, valve deck 6, gland 7 and pressing plate 8, the valve body 1 is interior to be equipped with first chamber 11 and second chamber 12, institute
It states and Z-shaped locating slot 23 is offered on lower sleeve 21, the upper bush 22 is fixed on by Z-shaped locating slot 23 on lower sleeve 21
And in valve body 1, the PTFE seal circle 3 is set between lower sleeve 21 and upper bush 22（As shown in Figure 2）, the valve rod 5
At 1 inner axes of valve body, the valve plug 4 is set in valve body 1 and is connected with 5 end of valve rod, and the valve deck 6 is pushed up set on valve body 1
At portion axle center, packing spring 61 is equipped in the valve deck 6, the gland 7, which is set on 6 top of valve deck and withstands, compresses filler bullet
Spring 61, the fastening of pressing plate 8 are arranged on 1 top of valve body, the incision of original lower cartridge are divided into two parts, along with soft material
The sealing ring of material, changes that original metal is very stiff and demanding to be sealed into soft seal, can effectively prevent leakage in the medium of lower part in this way and occur, separately
Outside, it is provided with O-ring 9 outside the valve plug 4, so that medium will not effectively prevent by being flowed through between valve plug and upper bush
Leakage occurs in upper dielectric, thus realizes intimate zero leakage substantially.
The utility model by the way that sleeve incision is divided into two and adds soft seal ring between the two, change be sealed into firmly it is soft close
Envelope, valve plug increase O-ring outside, can effectively prevent two parts leakage up and down, accomplish intimate zero leakage, using effect is good, user
Just, it is repaired without frequent shutdown, service efficiency is high, can take into account that pressure difference is big and zero leakage.
The product form and style of above-described embodiment and schema and non-limiting the utility model, any technical field
The appropriate variation or modification that those of ordinary skill does it all should be regarded as not departing from the patent category of the utility model.
Claims (2)
1. a kind of zero leakage cage type regulating valve, it is characterised in that：Including valve body（1）, lower sleeve（21）, upper bush（22）、PTFE
Sealing ring（3）, valve plug（4）, valve rod（5）, valve deck（6）, gland（7）And pressing plate（8）, the valve body（1）Inside it is equipped with first
Chamber（11）And second chamber（12）, the lower sleeve（21）On offer Z-shaped locating slot（23）, the upper bush（22）It is logical
Cross Z-shaped locating slot（23）It is fixed on lower sleeve（21）Above and set on valve body（1）It is interior, the PTFE seal circle（3）Set on trapping
Cylinder（21）With upper bush（22）Between, the valve rod（5）Set on valve body（1）At inner axes, the valve plug（4）Set on valve body（1）
Interior and and valve rod（5）End is connected, the valve deck（6）Set on valve body（1）At the axle center of top, the valve deck（6）It is interior to be equipped with filler
Spring（61）, the gland（7）Set on valve deck（6）Top and withstand compression packing spring（61）, the pressing plate（8）Fastening
It is arranged on valve body（1）Top.
2. a kind of zero leakage cage type regulating valve according to claim 1, it is characterised in that：The valve plug（4）It is provided with O outside
Shape circle（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721704927.9U CN207569235U (en) | 2017-12-11 | 2017-12-11 | A kind of zero leakage cage type regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721704927.9U CN207569235U (en) | 2017-12-11 | 2017-12-11 | A kind of zero leakage cage type regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207569235U true CN207569235U (en) | 2018-07-03 |
Family
ID=62687556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721704927.9U Active CN207569235U (en) | 2017-12-11 | 2017-12-11 | A kind of zero leakage cage type regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207569235U (en) |
-
2017
- 2017-12-11 CN CN201721704927.9U patent/CN207569235U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |