CN209100648U - A kind of PVDF shut-off valve - Google Patents
A kind of PVDF shut-off valve Download PDFInfo
- Publication number
- CN209100648U CN209100648U CN201821841057.4U CN201821841057U CN209100648U CN 209100648 U CN209100648 U CN 209100648U CN 201821841057 U CN201821841057 U CN 201821841057U CN 209100648 U CN209100648 U CN 209100648U
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- China
- Prior art keywords
- valve
- shut
- pvdf
- valve body
- flap
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Abstract
The utility model discloses a kind of PVDF shut-off valves, including valve body, the valve body upper end is provided with valve deck, the valve deck connects valve body by multiple bolt threads, the valve deck upper inner is provided with valve stem nut, and filler is filled on the inside of the bonnet lower, is provided with gland above the filler, valve rod is provided in the valve stem nut, the valve stem tip is equipped with handwheel.The utility model passes through the effect of handwheel, valve rod, valve stem nut, move down flap, to which the connection cavity of valve inner be closed, play the role of sealing, and filler and gland further enhance leakproofness, the clamping nut of flap upper end makes removably also have good fixed function simultaneously between valve rod and flap, to make it facilitate maintenance, and valve body, flap and valve deck etc. make the weight saving of the shut-off valve using PVDF material, it is more easily moved, corrosion resistance also greatly enhances simultaneously, increases the service life of shut-off valve.
Description
Technical field
The utility model relates to a kind of control valve, specifically a kind of PVDF shut-off valve.
Background technique
Shut-off valve is also known as pipe valve valve, belongs to forced seal formula valve, so when valve is closed, it is necessary to apply to flap and press
Power is not leaked with forced seal face.When medium is by entering valve below flap, the resistance overcome required for operating force, is valve
The frictional force of bar and filler and the thrust as caused by the pressure of medium, the power of closing valve is bigger than the power of valve opening door, so valve rod
Diameter it is big, the failure of valve rod bending otherwise can occur.It is divided into three kinds by connection type: flanged joint, screwed connection, welding
Connection.The opening and closing element of shut-off valve is the flap of stopper, and above in plane or the extra large conical surface, flap is made straight along the center line of valve seat for sealing
Line movement.Since to open or close stroke relatively short for the valve rod of such valve, and there is very reliable cutting function, again
Due to the variation of valve seat port and the stroke direct proportionality of flap, it is very suitable for the adjusting to flow.
But be at present to be fixedly connected between the valve rod and flap of used shut-off valve, since flap will receive pressure
The double action of power and dielectric corrosion makes it will appear abrasion, so that the mode being fixedly connected, makes flap dismount inconvenient maintenance.
Therefore, those skilled in the art provide a kind of PVDF shut-off valve, to solve the problems mentioned in the above background technology.
Summary of the invention
The purpose of this utility model is to provide a kind of PVDF shut-off valves, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the utility model provides the following technical solutions:
A kind of PVDF shut-off valve, including valve body, the valve body upper end are provided with valve deck, and the valve deck passes through multiple bolt spiral shells
Line connects valve body, and the valve deck upper inner is provided with valve stem nut, and filler is filled on the inside of the bonnet lower, described to fill out
Material top is provided with gland, valve rod is provided in the valve stem nut, the valve stem tip is equipped with handwheel, and under valve rod
End is arranged in valve body across gland and filler, and the valve rod bottom end is provided with divided ring, setting on the outside of the divided ring
There is flap, is provided with clamping nut between the flap upper inner and valve rod.
As a further solution of the present invention: the bolt includes studs, plain washer and nut, the double end
The upper and lower ends of stud are threaded with nut, and plain washer is arranged on stud on the inside of nut.
Several mounting holes are provided on wall at left and right sides of the valve body as a further solution of the present invention,
And structure of mounting hole is identical.
The valve body left end is set as medium entrance, the valve body right end as a further solution of the present invention,
It is set as media outlet.
The valve body, flap, gland and valve deck are all made of PVDF material as a further solution of the present invention,
Material is made.
The valve stem nut 12 is made of ZCuAl10Fe3 material as a further solution of the present invention,.
Compared with prior art, the utility model has the beneficial effects that
The utility model passes through the effect of handwheel, valve rod, valve stem nut, moves down flap, thus by the company of valve inner
The closing of cavity body, plays the role of sealing, and filler and gland further enhance leakproofness, the clamping nut of flap upper end
Make that removably also there is good fixed function simultaneously between valve rod and flap, so that it be made to facilitate maintenance, and valve body, valve
Valve and valve deck etc. make the weight saving of the shut-off valve using PVDF material, it is easier to and it is mobile, while corrosion resistance also greatly enhances,
Increase the service life of shut-off valve.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of PVDF shut-off valve.
In figure: 1- valve body, 2- flap, 3- clamping nut, 4- valve rod, 5- divided ring, 6- filler, 7- gland, 8- are bis-
Header stud, 9- plain washer, 10- nut, 11- valve deck, 12- valve stem nut, 13- handwheel, 14- mounting hole, 15- medium entrance, 16-
Media outlet.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, a kind of PVDF shut-off valve, including valve body 1,1 upper end of valve body are set in the utility model embodiment
It is equipped with valve deck 11, the valve deck 11 connects valve body 1 by multiple bolt threads, and 11 upper inner of valve deck is provided with valve rod spiral shell
Mother 12, and 11 lower inside of the valve deck is filled with filler 6, is provided with gland 7, the valve rod spiral shell above the filler 6
Valve rod 4 is provided in mother 12,4 top of valve rod is equipped with handwheel 13, and 4 lower end of valve rod passes through gland 7 and filler 6 is set
It sets in valve body 1,4 bottom end of valve rod is provided with divided ring 5, flap 2 is provided on the outside of the divided ring 5, on the flap 2
Clamping nut 3 is provided between valve rod 4 on the inside of portion.
The bolt includes studs 8, plain washer 9 and nut 10, and the equal screw thread of the upper and lower ends of the studs 8 connects
It is connected to nut 10, and 10 inside of nut is arranged with plain washer 9 on stud 8.
Several mounting holes 14 are provided on 1 left and right sides wall of valve body, and 14 structure of mounting hole is identical.
1 left end of valve body is set as medium entrance 15, and 1 right end of valve body is set as media outlet 16.
The valve body 1, flap 2, gland 7 and valve deck 11 are all made of PVDF material and are made.
The valve stem nut 12 is made of ZCuAl10Fe3 material.
The working principle of the utility model is:
When the utility model is used, being rotated by rotation handwheel 13 with ovable valve stem 4, while valve rod 4 is in valve stem nut 12
Interior rotation, and valve rod 4 is threadedly coupled with valve stem nut 12, so that valve rod 4 be made to move down, and flap 2 is driven to move down, thus will
Connection cavity closing inside valve body 1, plays the role of sealing, and filler 6 and gland 7 further enhance leakproofness, valve
The clamping nut 3 of 2 upper end of valve makes removably also have good fixed function simultaneously between valve rod 4 and flap 2, to make
It facilitates maintenance, and valve body 1, flap 2 and valve deck 11 etc. make the weight saving of the shut-off valve using PVDF material, it is easier to move
It is dynamic, while corrosion resistance also greatly enhances, and increases the service life of shut-off valve.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of PVDF shut-off valve, including valve body, which is characterized in that the valve body upper end is provided with valve deck, and the valve deck passes through
Multiple bolt threads connect valve body, and the valve deck upper inner is provided with valve stem nut, and is filled on the inside of the bonnet lower
Filler, the filler top are provided with gland, valve rod are provided in the valve stem nut, the valve stem tip is equipped with hand
Wheel, and valve rod lower end passes through gland and filler is arranged in valve body, the valve rod bottom end is provided with divided ring, described split
It is provided with flap on the outside of ring, is provided with clamping nut between the flap upper inner and valve rod.
2. a kind of PVDF shut-off valve according to claim 1, which is characterized in that the bolt includes studs, plain cushion
Circle and nut, the upper and lower ends of the studs are threaded with nut, and are arranged on stud on the inside of nut
Plain washer.
3. a kind of PVDF shut-off valve according to claim 1, which is characterized in that be respectively provided on wall at left and right sides of the valve body
There are several mounting holes, and structure of mounting hole is identical.
4. a kind of PVDF shut-off valve according to claim 1, which is characterized in that the valve body left end be set as medium into
Mouthful, the valve body right end is set as media outlet.
5. a kind of PVDF shut-off valve according to claim 1, which is characterized in that the valve body, flap, gland and valve
Lid is all made of PVDF material and is made.
6. a kind of PVDF shut-off valve according to claim 1, which is characterized in that the valve stem nut uses ZCuAl10Fe3
Material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821841057.4U CN209100648U (en) | 2018-11-09 | 2018-11-09 | A kind of PVDF shut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821841057.4U CN209100648U (en) | 2018-11-09 | 2018-11-09 | A kind of PVDF shut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209100648U true CN209100648U (en) | 2019-07-12 |
Family
ID=67158799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821841057.4U Active CN209100648U (en) | 2018-11-09 | 2018-11-09 | A kind of PVDF shut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209100648U (en) |
-
2018
- 2018-11-09 CN CN201821841057.4U patent/CN209100648U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 325000 no.4269 Binhai Third Road, Wenzhou Economic and Technological Development Zone, Zhejiang Province Patentee after: Teflon Group Co., Ltd Address before: 325024 Mingzhu Road, Longwan Industrial Park, Longwan District, Wenzhou City, Zhejiang Province Patentee before: NFL VALVE Co.,Ltd. |