CN206708386U - A kind of valve with changeable valve seat stainless steel stop valve - Google Patents
A kind of valve with changeable valve seat stainless steel stop valve Download PDFInfo
- Publication number
- CN206708386U CN206708386U CN201720435839.7U CN201720435839U CN206708386U CN 206708386 U CN206708386 U CN 206708386U CN 201720435839 U CN201720435839 U CN 201720435839U CN 206708386 U CN206708386 U CN 206708386U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- stainless steel
- changeable
- straight sections
- 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 kind of valve with changeable valve seat stainless steel stop valve, including：Valve body, the valve body include feed pathway and liquid outlet channel, and the flow control through hole upper end is provided with circular heavy platform；Sealing gasket, the sealing gasket include the first polytetrafluoroethylene gasket, disk spring and the second polytetrafluoroethylene gasket from top to bottom stacked successively, and the sealing gasket is positioned in the circular heavy platform；Movable valve seat, the movable valve seat is threadedly connected in the flow control through hole, the movable valve seat includes flange portion, straight sections and projecting ring section, the straight sections top is connected with the flange portion, the straight sections lower inside is connected with the projecting ring section, the flange portion upper surface is provided with flange boss, and the straight sections outer surface is provided with external screw thread.The valve with changeable valve seat stainless steel stop valve that the utility model is related to, can be corroded, after erosion or mechanical damage in sealing surface of seat, quickly reduce sealing surface.
Description
Technical field
The utility model belongs to valve arrangement technical field, refers specifically to a kind of valve with changeable valve seat stainless steel stop valve.
Background technology
Cut-off valve body portion of the prior art, which is integrated, to be cast or is welded as a whole, and this stop valve is using process
In, be corroded if there is sealing surface of seat, erosion, mechanical injuries, or be built-up welding valve base sealing after valve is disassembled
Face, then upper machine trolley pin sealing surface, finally also wants grinding seal surface, time-consuming, and maintenance effect is poor, easily damages again
It is bad；Whole valve, waste money either are changed, and whole dismountings are needed during valve is changed, is easily destroyed valve
Connected with the flange of pipeline, cause the appearance of new leak source.Therefore, in the market be badly in need of one kind can be rotten in sealing surface of seat
After erosion, erosion or mechanical damage, sealing surface, and the valve with changeable valve seat stainless steel stop valve of good sealing effect are quickly reduced.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of valve with changeable valve seat stainless steel stop valve.
It is adopted the following technical scheme that：A kind of valve with changeable valve seat stainless steel stop valve, including：
Valve body, the valve body include feed pathway and liquid outlet channel, the feed pathway and liquid outlet channel handing-over table
Face is provided with flow control through hole, and the flow control through-hole wall is provided with screw thread, and the flow control through hole upper end is provided with circular heavy platform；
Sealing gasket, the sealing gasket include from top to bottom stack successively the first polytetrafluoroethylene gasket, disk spring and
Second polytetrafluoroethylene gasket, the sealing gasket are positioned in the circular heavy platform；
Movable valve seat, the movable valve seat are threadedly connected in the flow control through hole, the movable valve seat include flange portion,
Straight sections and projecting ring section, the straight sections top are connected with the flange portion, the straight sections lower inside and the bulge loop
Portion is connected, and the flange portion upper surface is provided with flange boss, and the straight sections outer surface is provided with external screw thread；
Headstock gear, the headstock gear include handwheel, valve rod and the flap being from top to bottom fixedly connected sequentially, the valve
Valve lower end is slidingly sealed with the movable valve seat inwall and is connected；
The body top is provided with the valve rod hole passed through for the valve rod, and the valve rod is by being stacked in the valve rod hole
Trim ring and filler be connected with the valve seal.
Further, in the above-mentioned technical solutions, the center of circle phase of the flange portion, the straight sections and the projecting ring section
Together, the flange portion is identical with the straight sections internal diameter.
Further, in the above-mentioned technical solutions, the valve body includes main valve body and is bolted to the main valve
Bonnet at the top of body, the bonnet are tightly connected with the main valve body by seal washer.
Further, in the above-mentioned technical solutions, in addition to gland be bolted with the bonnet, the gland
It is placed on the valve rod, the gland lower end compresses the trim ring.
Further, in the above-mentioned technical solutions, the straight sections outer surface is threadedly coupled with the flow control through-hole wall.
Further, in the above-mentioned technical solutions, the flange lower surface compresses first polytetrafluoroethylene gasket.
Further, in the above-mentioned technical solutions, during impaction state, the first polytetrafluoroethylene gasket upper surface and institute
State circular heavy platform upper surface flush.
Further, in the above-mentioned technical solutions, the straight sections are provided with smooth surface close to described flange portion one end outer surface
Portion, the smooth surface portion fasten with the sealing gasket.
Further, in the above-mentioned technical solutions, first polytetrafluoroethylene gasket, the disk spring and described
The external diameter of two polytetrafluoroethylene gaskets is identical, and the disk spring is identical with the internal diameter of the flow control through hole, and described first poly- four
The internal diameter of PVF packing ring and second polytetrafluoroethylene gasket is identical with the external diameter in the smooth surface portion.
The utility model has the beneficial effect that：
1. valve with changeable valve seat stainless steel stop valve described in the utility model, can be corroded in sealing surface of seat, erosion or
After mechanical damage, sealing surface is quickly reduced；
2. valve with changeable valve seat stainless steel stop valve described in the utility model, need not integrally pull down during maintenance, it is only necessary to dismounting and
Changing movable valve seat can complete to repair, and maintenance efficiency is high, and will not destroy the connection of the original side flange of valve body two and pipeline；
2. valve with changeable valve seat stainless steel stop valve described in the utility model, there is Multi-layer sealing, good sealing effect will not
Seepage.
Brief description of the drawings
The utility model accompanying drawing is as follows,
Fig. 1 is valve with changeable valve seat stainless steel stop valve structure schematic diagram described in embodiment 1；
Fig. 2 is that A portions structure for amplifying shows after headstock gear described in valve with changeable valve seat stainless steel stop valve described in embodiment 1 rises
It is intended to；
Fig. 3 is that B portions structure for amplifying shows after headstock gear described in valve with changeable valve seat stainless steel stop valve described in embodiment 1 rises
It is intended to；
Fig. 4 shows for B portions structure for amplifying when valve with changeable valve seat stainless steel stop valve only installs the sealing gasket described in embodiment 1
It is intended to；
Fig. 5 is movable valve seat mplifying structure schematic diagram described in embodiment 1；
Fig. 6 is that movable valve seat described in embodiment 1 amplifies overlooking the structure diagram.
Wherein, 1, valve body, 2, sealing gasket, 3, movable valve seat, 4, headstock gear, 5, gland, 11, main valve body, 12, feed liquor leads to
Road, 13, liquid outlet channel, 14, flow control through hole, 15, circular heavy platform, 16, trim ring, 17, filler, 18, bonnet, 19, seal washer,
21st, the first polytetrafluoroethylene gasket, 22, disk spring, the 23, second polytetrafluoroethylene gasket, 31, flange portion, 32, straight sections,
33rd, projecting ring section, 34, flange boss, 35, external screw thread, 36, smooth surface portion, 41, handwheel, 42, valve rod, 43, flap, 44, valve rod hole.
Embodiment
Clear, complete description is carried out to the technical solution of the utility model with reference to the accompanying drawings and examples, in this reality
With in new description, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ", " level ",
The orientation or position relationship of the instructions such as " interior ", " outer " are based on orientation shown in the drawings or position relationship, are for only for ease of and retouch
State the utility model and simplify and describe, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " first ", " the
Two ", " the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
Embodiment 1
As shown in Figures 1 to 6, a kind of valve with changeable valve seat stainless steel stop valve, including：
Valve body 1, the valve body 1 include feed pathway 12 and liquid outlet channel 13, the feed pathway 12 and it is described go out liquid lead to
Road 13 joins surface and is provided with flow control through hole 14, and the inwall of flow control through hole 14 is provided with screw thread, and the upper end of flow control through hole 14 is set
There is circular heavy platform 15；
Sealing gasket 2, the sealing gasket 2 include the first polytetrafluoroethylene gasket 21, the dish-shaped bullet from top to bottom stacked successively
The polytetrafluoroethylene gasket 23 of spring 22 and second, the sealing gasket 2 are positioned in the circular heavy platform 15；
Movable valve seat 3, the movable valve seat 3 are threadedly connected in the flow control through hole 14, and the movable valve seat 3 includes method
Blue portion 31, straight sections 32 and projecting ring section 33, the top of straight sections 32 are connected with the flange portion 31, under the straight sections 32
It is connected on the inside of portion with the projecting ring section 33, the upper surface of flange portion 31 is provided with flange boss 34, the appearance of straight sections 32
Face is provided with external screw thread 35；
Headstock gear 4, the headstock gear 4 include handwheel 41, valve rod 42 and the flap being from top to bottom fixedly connected sequentially
43, the lower end of flap 43 is slidingly sealed with the inwall of movable valve seat 3 and is connected；
The top of valve body 1 is provided with the valve rod hole 44 passed through for the valve rod 42, and the valve rod 42 is described by being stacked in
Trim ring 16 and filler 17 in valve rod hole 44 are tightly connected with the valve body 1.
Further, in the above-mentioned technical solutions, the circle of the flange portion 31, the straight sections 32 and the projecting ring section 33
The heart is identical, and the flange portion 31 is identical with the internal diameter of straight sections 32.
Further, in the above-mentioned technical solutions, the valve body 1 includes main valve body 11 and is bolted to the master
The bonnet 18 at the top of valve body 11, the bonnet 18 are tightly connected with the main valve body 11 by seal washer 19.
Further, in the above-mentioned technical solutions, in addition to gland 5 be bolted with the bonnet 18, it is described
Gland 5 is placed on the valve rod 42, and the lower end of gland 5 compresses the trim ring 16.
The sealing that the gland 5, the trim ring 16 and the filler 17 can improve the valve rod 42 and the valve body 1 is imitated
Fruit.
Further, in the above-mentioned technical solutions, the outer surface of straight sections 32 and the inner thread of flow control through hole 14
Connection.
Further, in the above-mentioned technical solutions, the lower surface of flange portion 31 compresses the first polytetrafluoroethylene (PTFE) pad
Circle 21.
Further, in the above-mentioned technical solutions, during impaction state, the upper surface of the first polytetrafluoroethylene gasket 21 with
The circular heavy upper surface flush of platform 15.
Further, in the above-mentioned technical solutions, the straight sections 32 are provided with close to one end outer surface of flange portion 31
Smooth surface portion 36, the smooth surface portion 36 fasten with the sealing gasket 2.
Further, in the above-mentioned technical solutions, first polytetrafluoroethylene gasket 21, the disk spring 22 and institute
State that the external diameter of the second polytetrafluoroethylene gasket 23 is identical, the disk spring 22 is identical with the internal diameter of the flow control through hole 14, institute
The internal diameter for stating the first polytetrafluoroethylene gasket 21 and second polytetrafluoroethylene gasket 23 is identical with the external diameter in the smooth surface portion.
Stop valve with the passage of usage time, often receives burn into erosion and mechanical injuries in use, when
During the valve with changeable valve seat stainless steel stop valve damage, it is only necessary to the bonnet 18 is dismantled, the movable valve seat 3 rotation is pulled down,
The sealing gasket 2 is taken out, then the new movable valve seat 3 is rotated loading by the sealing gasket 2 more renewed, until described
Movable valve seat 3 is threadedly coupled firmly with the flow control through hole 14 and then the headstock gear 4 and the bonnet 18 is installed on into institute
State on main valve body 11, you can complete to change.
First polytetrafluoroethylene gasket 21 and second polytetrafluoroethylene gasket 23 ensure that the activity
Sealing between valve seat 3 and the main valve body 11, the disk spring 22 can prevent the vibrations of movable valve seat 3 from loosening.
By adopting the above-described technical solution, the valve with changeable valve seat stainless steel stop valve that the utility model is related to, Neng Gou
Sealing surface of seat is corroded, after erosion or mechanical damage, quickly reduces sealing surface, need not integrally pull down during maintenance, it is only necessary to dismantle
It can complete to repair with movable valve seat is changed, maintenance efficiency is high, and will not destroy the company of the original side flange of valve body two and pipeline
Connect, there is Multi-layer sealing, good sealing effect will not seepage.The utility model can be widely popularized in valve arrangement technical field.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality
New technical scheme and its inventive concept is subject to equivalent substitution or change, should all cover the scope of protection of the utility model it
It is interior.
Claims (9)
- A kind of 1. valve with changeable valve seat stainless steel stop valve, it is characterised in that including：Valve body, the valve body include feed pathway and liquid outlet channel, and the feed pathway and liquid outlet channel handing-over surface are set There is flow control through hole, the flow control through-hole wall is provided with screw thread, and the flow control through hole upper end is provided with circular heavy platform；Sealing gasket, the sealing gasket include the first polytetrafluoroethylene gasket, the disk spring and second from top to bottom stacked successively Polytetrafluoroethylene gasket, the sealing gasket are positioned in the circular heavy platform；Movable valve seat, the movable valve seat are threadedly connected in the flow control through hole, and the movable valve seat includes flange portion, straight tube Portion and projecting ring section, the straight sections top are connected with the flange portion, the straight sections lower inside and the projecting ring section phase Connection, the flange portion upper surface are provided with flange boss, and the straight sections outer surface is provided with external screw thread；Headstock gear, the headstock gear include the handwheel, valve rod and the flap that are from top to bottom fixedly connected sequentially, under the flap End is slidingly sealed with the movable valve seat inwall to be connected；The body top is provided with the valve rod hole passed through for the valve rod, and the valve rod passes through the pressure that is stacked in the valve rod hole Circle and filler are connected with the valve seal.
- 2. valve with changeable valve seat stainless steel stop valve according to claim 1, it is characterised in that：It is the flange portion, described straight Pipe portion is identical with the center of circle of the projecting ring section, and the flange portion is identical with the straight sections internal diameter.
- 3. valve with changeable valve seat stainless steel stop valve according to claim 1, it is characterised in that：The valve body includes main valve body With the bonnet being bolted at the top of the main valve body, the bonnet is sealed with the main valve body by seal washer to be connected Connect.
- 4. valve with changeable valve seat stainless steel stop valve according to claim 2, it is characterised in that：Also pass through bolt including gland In connection and the bonnet, the gland is placed on the valve rod, and the gland lower end compresses the trim ring.
- 5. valve with changeable valve seat stainless steel stop valve according to claim 1, it is characterised in that：The straight sections outer surface with The flow control through-hole wall threaded connection.
- 6. valve with changeable valve seat stainless steel stop valve according to claim 1, it is characterised in that：The flange lower surface pressure Tight first polytetrafluoroethylene gasket.
- 7. valve with changeable valve seat stainless steel stop valve according to claim 6, it is characterised in that：During impaction state, described One polytetrafluoroethylene gasket upper surface and the circular heavy platform upper surface flush.
- 8. valve with changeable valve seat stainless steel stop valve according to claim 1, it is characterised in that：The straight sections are close to described Flange portion one end outer surface is provided with smooth surface portion, and the smooth surface portion fastens with the sealing gasket.
- 9. valve with changeable valve seat stainless steel stop valve according to claim 8, it is characterised in that：First polytetrafluoroethylene (PTFE) Packing ring, the disk spring are identical with the external diameter of second polytetrafluoroethylene gasket, and the disk spring leads to the flow control The internal diameter in hole is identical, the internal diameter of first polytetrafluoroethylene gasket and second polytetrafluoroethylene gasket and the smooth surface portion External diameter it is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720435839.7U CN206708386U (en) | 2017-04-24 | 2017-04-24 | A kind of valve with changeable valve seat stainless steel stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720435839.7U CN206708386U (en) | 2017-04-24 | 2017-04-24 | A kind of valve with changeable valve seat stainless steel stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206708386U true CN206708386U (en) | 2017-12-05 |
Family
ID=60456709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720435839.7U Expired - Fee Related CN206708386U (en) | 2017-04-24 | 2017-04-24 | A kind of valve with changeable valve seat stainless steel stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206708386U (en) |
-
2017
- 2017-04-24 CN CN201720435839.7U patent/CN206708386U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171205 Termination date: 20200424 |