CN203082260U - Novel membrane valve - Google Patents
Novel membrane valve Download PDFInfo
- Publication number
- CN203082260U CN203082260U CN 201320017325 CN201320017325U CN203082260U CN 203082260 U CN203082260 U CN 203082260U CN 201320017325 CN201320017325 CN 201320017325 CN 201320017325 U CN201320017325 U CN 201320017325U CN 203082260 U CN203082260 U CN 203082260U
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- CN
- China
- Prior art keywords
- valve
- diaphragm
- valve body
- nylon
- membrane
- 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 novel membrane valve. The problems that an existing membrane valve is bad in sealing performance and a membrane sheet is short in service life are mainly solved. The novel membrane valve is characterized in that a nylon valve clack is arranged on the lower portion of a valve rod, and a tetrafluoroethylene-hexafluoropropylene membrane sheet is arranged on the lower portion of the nylon valve clack. In a normally closed state, the nylon valve clack is matched with the valve rod, moreover the nylon valve clack is tightly attached to the tetrafluoroethylene-hexafluoropropylene membrane sheet which is attached to a lining in a valve body, and the valve body and the valve cover are made of ABS material. The service life of the membrane sheet is effectively prolonged, and the sealing performance of the valve is effectively improved.
Description
Technical field
The utility model relates to a kind of valve, is specifically related to a kind of new types of diaphragm valve.
Background technique
The structural type of membrane valve differs widely with general valve, being a kind of novel valve, is a kind of block valve of special shape, and its open-shut device is a barrier film made from soft material, body cavity and valve gap inner chamber and driver part are separated, now be widely used in every field.
Membrane valve is that a flexible diaphragm or composite membrane are housed in valve body and valve gap, and its closure member is a kind of compression set that is connected with barrier film.Valve seat can be a weir shape, also can be the tube wall of straight-through runner.The advantage of membrane valve is that its operating mechanism and medium channel separate, and has not only guaranteed the pure of working medium, also prevents the possibility of pipeline medium impulse maneuver mechanism workpiece simultaneously.In addition, the valve rod place does not need to adopt any type of independent sealing, unless use as safety installations in the control hazardous medium.In the membrane valve, because working medium contact only is barrier film and valve body, the two all can adopt multiple different material, so this valve can control multiple working medium ideally, especially is fit to have the medium of chemical corrosivity or suspended particulate.The operating temperature of membrane valve is subjected to the restriction of barrier film and valve body material that lining uses usually, and its operating temperature range is approximately-50～175 ℃.Membrane valve is simple in structure, only is made of valve body, barrier film and three critical pieces of valve gap assembly parts.This valve is easy to fast quick-detach and maintenance, and the replacing barrier film can reach in the short time at the scene to be finished.
But existing membrane valve diaphragm apparatus design is unreasonable, causes the fatigue strength of diaphragm easily impaired.After using a period of time, diaphragm lost efficacy, and occur leaking, and the membrane valve sealability was relatively poor.
The model utility content
In order to overcome disadvantages of background technology, the utility model provides a kind of new types of diaphragm valve, has mainly solved short problem of existing membrane valve poor sealing performance and diaphragm life-span.
The technological scheme that the utility model adopted is: a kind of new types of diaphragm valve, comprise valve body, valve gap, valve rod and operating device, described valve body and valve gap are fixed by link, valve rod passes valve gap, and the valve rod upside is an operating device, be provided with lining in the described valve body, stem lower portion is provided with the nylon flap, described nylon flap bottom is provided with the perfluoroethylene-propylene diaphragm, under the normally off, nylon flap and valve rod clamping matching, and nylon flap and perfluoroethylene-propylene diaphragm tightly fit, and the lining in perfluoroethylene-propylene diaphragm and the valve body is fitted; Described valve body and valve gap are the ABS material.
The flanged surface that described valve gap cooperates with valve body is provided with groove, and corresponding position is provided with the flange that matches with this groove on the described valve body, is provided with seal ring between described groove and the flange.
Described link is a nut.
Described operating device is a handwheel.
Described operating device upside is provided with position-limiting cover.
The beneficial effects of the utility model are: owing to take technique scheme, effectively prolonged membrane valve working life and improved the sealability of valve.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
1-valve body among the figure, 2-valve gap, 3-valve rod, 4-operating device, 5-link, 6-lining, 7-nylon flap, 8-perfluoroethylene-propylene diaphragm, 9-groove, 10-flange, 11-seal ring, 12-position-limiting cover.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described further:
As shown in Figure 1, a kind of new types of diaphragm valve comprises valve body 1, valve gap 2, valve rod 3 and operating device 4, described valve body 1 and valve gap 2 are fixing by link 5, valve rod 3 passes valve gap 2, and valve rod 3 upsides are operating device 4, and described link 5 is that the described operating device 4 of nut is handwheel.Be provided with lining 6 in the described valve body 1, valve rod 3 bottoms are provided with nylon flap 7, described nylon flap 7 bottoms are provided with perfluoroethylene-propylene diaphragm 8, under the normally off, nylon flap 7 and valve rod 3 clamping matching, and nylon flap 7 is tightly fitted with perfluoroethylene-propylene diaphragm 8, and perfluoroethylene-propylene diaphragm 8 is fitted with the lining 6 in the valve body 1; Described valve body 1 is the ABS material with valve gap 2.Diaphragm 8 is selected fatigue resistance fluoroplastic FEP(perfluoroethylene-propylene preferably for use) material, flap 7 adopts the nylon material forever withstand voltage, that aberration rate is low, thereby prevented that the valve body 1 that produces because of clamp load torque from leaking, perfluoroethylene-propylene diaphragm 8 is combined into Sealing with nylon material flap 7, this novel combination structure obtains fine improvement to diaphragm machinery usability, has prolonged membrane valve working life and has improved the sealability of valve.And valve body 1 is selected the ABS material for use with valve gap 2, and therefore its impact resistance, heat resistance, lower temperature resistance, chemical proofing and excellent electrical properties can adapt to complex operating environment.
The flanged surface that described valve gap 2 cooperates with valve body 1 is provided with groove 9, and corresponding position is provided with the flange 10 that matches with this groove 9 on the described valve body 1, is provided with seal ring 11 between described groove 9 and the flange 10.Further guaranteed the sealing of this membrane valve, made medium be difficult for leaking.
Described operating device 4 upsides are provided with position-limiting cover 12, prevent that valve rod 3 too protrudes upward, and this valve rod 3 is played spacing effect along with handwheel rotates.
Every technician's notice: though the utility model is described according to above-mentioned embodiment; but invention thought of the present utility model is not limited in this model utility; the repacking of any utilization inventive concept all will be included in this patent scope of patent protection.
Claims (5)
1. new types of diaphragm valve, comprise valve body (1), valve gap (2), valve rod (3) and operating device (4), described valve body (1) and valve gap (2) are fixing by link (5), valve rod (3) passes valve gap (2), and valve rod (3) upside is operating device (4), be provided with lining (6) in the described valve body (1), it is characterized in that: valve rod (3) bottom is provided with nylon flap (7), described nylon flap (7) bottom is provided with perfluoroethylene-propylene diaphragm (8), under the normally off, nylon flap (7) and valve rod (3) clamping matching, and nylon flap (7) is tightly fitted with perfluoroethylene-propylene diaphragm (8), and perfluoroethylene-propylene diaphragm (8) is fitted with the lining (6) in the valve body (1); Described valve body (1) is the ABS material with valve gap (2).
2. new types of diaphragm valve according to claim 1, it is characterized in that: the flanged surface that described valve gap (2) cooperates with valve body (1) is provided with groove (9), described valve body (1) is gone up corresponding position and is provided with the flange (10) that matches with this groove (9), is provided with seal ring (11) between described groove (9) and the flange (10).
3. new types of diaphragm valve according to claim 1 is characterized in that: described link (5) is a nut.
4. new types of diaphragm valve according to claim 1 is characterized in that: described operating device (4) is a handwheel.
5. new types of diaphragm valve according to claim 1 is characterized in that: described operating device (4) upside is provided with position-limiting cover (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320017325 CN203082260U (en) | 2013-01-14 | 2013-01-14 | Novel membrane valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320017325 CN203082260U (en) | 2013-01-14 | 2013-01-14 | Novel membrane valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203082260U true CN203082260U (en) | 2013-07-24 |
Family
ID=48828098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320017325 Expired - Fee Related CN203082260U (en) | 2013-01-14 | 2013-01-14 | Novel membrane valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203082260U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405920A (en) * | 2014-09-19 | 2015-03-11 | 孙维 | Leakage-proof membrane valve |
| CN113983197A (en) * | 2021-10-19 | 2022-01-28 | 上海沪东造船阀门有限公司 | Diaphragm valve of manual switch |
| CN114110432A (en) * | 2021-11-15 | 2022-03-01 | 濮阳泓天威药业有限公司 | Liquid ammonia leakage pipeline control device |
-
2013
- 2013-01-14 CN CN 201320017325 patent/CN203082260U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405920A (en) * | 2014-09-19 | 2015-03-11 | 孙维 | Leakage-proof membrane valve |
| CN113983197A (en) * | 2021-10-19 | 2022-01-28 | 上海沪东造船阀门有限公司 | Diaphragm valve of manual switch |
| CN114110432A (en) * | 2021-11-15 | 2022-03-01 | 濮阳泓天威药业有限公司 | Liquid ammonia leakage pipeline control device |
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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 |
Granted publication date: 20130724 Termination date: 20160114 |