CN205479412U - Flexible case cover two way seal tapered plug valve of offset -type - Google Patents
Flexible case cover two way seal tapered plug valve of offset -type Download PDFInfo
- Publication number
- CN205479412U CN205479412U CN201620043115.3U CN201620043115U CN205479412U CN 205479412 U CN205479412 U CN 205479412U CN 201620043115 U CN201620043115 U CN 201620043115U CN 205479412 U CN205479412 U CN 205479412U
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- CN
- China
- Prior art keywords
- valve
- valve rod
- offset
- tapered plug
- way seal
- 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 discloses a flexible case cover two way seal tapered plug valve of offset -type, including valve gap, valve body, valve rod and case, the valve gap is connected with the valve body, and the valve rod is installed in the valve gap, and the lower extreme of valve rod is equipped with case, characterized by: being equipped with the sealing member around the valve rod of valve gap below, being equipped with preforming and lower gasket at the upper and lower both ends of sealing member, the lower termination of valve rod has toper picture peg case, and the outside cover of toper picture peg case is equipped with flexible case cover. This flexible case cover two way seal tapered plug valve of offset -type can guarantee to seal, does not have inside and outside the leakage, and easy maintenance guarantees the production system and keeps the safety in production the reduction accident for a long time. Only need change according to plan during the maintenance small case cover and sealing member (regular sealing device ) can, the steel valve body can be used safely on the pipeline for a long time in the beading to reduce at every turn the whole required fund of valve, obviously the overhaul of the equipments expense and repair time of reduce production enterprise of changing.
Description
Technical field
The invention belongs to valve field, particularly relate to a kind of offset-type flexible valves core retainer plate two way seal tapered plug valve.
Background technology
Valve be the fields such as industrial circle particularly chemical industry, water supply, combustion gas, the energy liquids and gases conveying technique required for open and close control and regulation the requisite equipment of flow.Due to the internal and outernal leakage of valve in production, easily cause huge loss.
The globe valve of application at present, compensatory owing to not having, after once frequently using a period of time, spheroid slightly weares and teares, and i.e. loses closing function, causes valve leak, because cannot adjusting and repair, can only change new valve.
Wide variety of rotary stop valve, compensation when being designed with one layer of rubber below as valve closing at spool, the valve rod that is rotated through utilizing handle during valve closing gives certain pressure, but owing to spool, rubber layer rotate together with valve rod when opening and closing, the as easy as rolling off a log abrasion of rubber layer.The aquaporin excessively of this valve is the design of low in and high out, one-way trip, and valve installs time-division water-in and water-out direction, and once valve water-in and water-out direction is anti-loaded, owing to the pressure of water easily makes the asbestos packing decompression at valve rod form leakage.It is that valve is installed correct, when the valve is closed due to the back pressure effect of water in pipeline, it is possible to make the asbestos packing decompression at valve rod form leakage.
Summary of the invention
It is an object of the invention to the shortcoming overcoming above-mentioned prior art, it is provided that a kind of simple in construction, good sealing effect, it is achieved two sealing surface two way seals of import and export in valve.
It is an object of the invention to be achieved through the following technical solutions:
A kind of offset-type flexible valves core retainer plate two way seal tapered plug valve, including valve gap, valve body, valve rod and spool, described valve gap is connected with valve body, valve rod is arranged in valve gap, the lower end of valve rod is provided with spool, below described valve gap valve rod be provided around sealing member, be provided with tabletting and lower gasket at the two ends up and down of sealing member, being terminated with taper plate spool under valve rod, the outer cover of taper plate spool is equipped with flexible valves core retainer plate.
The lower end of described valve rod is connected by jump ring taper plate spool,
Described flexible valves core retainer plate be shaped as inverted cone.
Connect on described valve body and have pressure transmitter.
The invention have the advantage that this offset-type flexible valves core retainer plate two way seal tapered plug valve, it is ensured that good seal, without internal and outernal leakage, easy to maintenance, it is ensured that production system long-term safety produces, minimizing accident.Slight valve core housing and sealing member (regular sealing device) only need to be changed according to plan during maintenance, steel valve body can be directly welded at long-term safety on pipeline and use, to reduce the fund needed for valve of the most all changing, can obviously reduce overhaul of the equipments expense and the repair time of manufacturing enterprise.This offset-type flexible valves core retainer plate two way seal tapered plug valve is designed with pressure transmitter, automatically pressure delta data is sent to remote control station by pressure transmitter, the supervision of the remote auto at any time to valve operation conditions can be realized, find that valve flexibility valve pocket is revealed can overhaul in time, it is ensured that induction system safe operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Embodiment: offset-type flexible valves core retainer plate two way seal tapered plug valve as depicted, including valve gap 2, valve body 9, valve rod 1 and spool, described valve gap 2 is connected with valve body 9, valve rod 1 is arranged in valve gap 2, the lower end of valve rod 1 is connected by jump ring 6 taper plate spool 7, below described valve gap 2, valve rod 1 is provided around sealing member 4, it is provided with tabletting 3 and lower gasket 5 at the two ends up and down of sealing member 4, valve rod is terminated with taper plate spool 7 for 1 time, and the outer cover of taper plate spool 7 is equipped with flexible valves core retainer plate 8.Described flexible valves core retainer plate 8 be shaped as inverted cone.Connect on described valve body 9 and have pressure transmitter 10.
Close valve during use to handle wheel belt ovable valve stem 1 and rotate, make plate spool 7 at vertical downward movement, owing to plate spool 7 is in valve core housing 8, plate spool 7 drives valve core housing 8 to move downward, flexible valves core retainer plate 8 outwards produces extruding force, makes flexible valves core retainer plate 8 outward expansion, the import and export of through type water channel in blocking valve body 9, closing valve and can realize two sealing surface two way seals of import and export in valve, valve inner is an airtight space.Assume that valve side valve core housing 8 sealing surface damages to reveal, do not interfere with the sealing of whole valve, can be damaged by valve side valve core housing 8 sealing surface and reveal the pressure change formed in valve body, detection valve ruuning situation, automatically pressure delta data is sent to remote control station by pressure transmitter 10, it is possible to achieve the remote auto at any time of valve operation conditions is supervised.
Valve rod 1 and the ingenious connection being connected by unique circular jump ring 6 of plate spool 7 due to offset-type flexible valves core retainer plate 8 two way seal tapered plug valve, valve rod 1 can rotate freely in plate spool 7, add the resistance of flexible valves core retainer plate 8 simultaneously, plate spool 7 and flexible valves core retainer plate 8 can be made can only to move up and down with the rotation of valve rod, without rotating with valve rod 1, to reduce the abrasion to flexible valves core retainer plate.
When valve needs to open, through handwheel by the rotation of valve rod 1, make plate spool 7 drive valve core housing 8 to move upward while upward vertical movement, leave the import and export of through type water channel in valve body 9, open valve.During due to plate spool 7 upward vertical movement, drive valve core housing 8 to move upward simultaneously, when valve is fully open, when plate spool 7 and valve core housing 8 move upward in the lower channel of valve body, owing to the top in the lower channel of valve internal is taper, progressively its valve core housing 8 is inwardly formed extruding force, these pressure can make have certain compensatory flexible valves core retainer plate 8 and extrude to around, the cavity of valve body 9 lower channel internal upper part is blocked, to around the valve rod 1 and lower channel top in valve body 9 space, formed and seal reliably, make valve gap interior and miscellaneous part, it is not subject to the pressure of pumped (conveying) medium in pipeline, because of without leaking.
Claims (4)
1. an offset-type flexible valves core retainer plate two way seal tapered plug valve, including valve gap, valve body, valve rod and spool, described valve gap is connected with valve body, valve rod is arranged in valve gap, the lower end of valve rod is provided with spool, it is characterized in that: below described valve gap valve rod be provided around sealing member, be provided with tabletting and lower gasket at the two ends up and down of sealing member, being terminated with taper plate spool under valve rod, the outer cover of taper plate spool is equipped with flexible valves core retainer plate.
2. according to the offset-type flexible valves core retainer plate two way seal tapered plug valve described in claims 1, it is characterized in that: the lower end of described valve rod is connected by jump ring taper plate spool.
3., according to the offset-type flexible valves core retainer plate two way seal tapered plug valve described in claims 1, it is characterized in that: described flexible valves core retainer plate be shaped as inverted cone.
4. according to the offset-type flexible valves core retainer plate two way seal tapered plug valve described in claims 1, it is characterized in that: connecting on described valve body has pressure transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620043115.3U CN205479412U (en) | 2016-01-18 | 2016-01-18 | Flexible case cover two way seal tapered plug valve of offset -type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620043115.3U CN205479412U (en) | 2016-01-18 | 2016-01-18 | Flexible case cover two way seal tapered plug valve of offset -type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205479412U true CN205479412U (en) | 2016-08-17 |
Family
ID=56670594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620043115.3U Expired - Fee Related CN205479412U (en) | 2016-01-18 | 2016-01-18 | Flexible case cover two way seal tapered plug valve of offset -type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205479412U (en) |
-
2016
- 2016-01-18 CN CN201620043115.3U patent/CN205479412U/en not_active Expired - Fee Related
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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: 20160817 Termination date: 20220118 |