CN2288316Y - Internal sealed centre-line butterfly valve - Google Patents
Internal sealed centre-line butterfly valve Download PDFInfo
- Publication number
- CN2288316Y CN2288316Y CN 96241497 CN96241497U CN2288316Y CN 2288316 Y CN2288316 Y CN 2288316Y CN 96241497 CN96241497 CN 96241497 CN 96241497 U CN96241497 U CN 96241497U CN 2288316 Y CN2288316 Y CN 2288316Y
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- CN
- China
- Prior art keywords
- valve
- valve body
- valve core
- butterfly
- core rod
- 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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- Lift Valve (AREA)
- Valve Housings (AREA)
Abstract
The utility model relates to an internal sealed centre line butterfly valve, which is composed of a valve body, a butterfly plate valve core and a valve core rod. An annular sealing rubber ring which is arranged in a valve core cavity is flat embedded on the wall surface of the valve core cavity of the valve body. The circular discs of both ends of the butterfly plate valve core are provided with an annular waterline at least. The annular sealing rubber ring is hermetically matched with the valve core in an interference way. An oppositely clamped type butterfly valve is formed by that the inlet of the valve body and the outlet of the valve body are radially extended out to form an annular shoulder table. A flange central line butterfly valve is formed by that the inlet of the valve body and the outlet of the valve body are provided with integral connective flanges. The flange central line butterfly valve is provided with an expansion pipe to satisfy different operation requirements. The utility model is characterized in that the utility model has the advantages that besides the advantages of the central line butterfly valve, the sealing performance of the connection opening is easy to ensure after the valve is connected with the pipeline. The utility model can be used for overground pipelines and underground pipelines.
Description
The utility model relates to a kind of butterfly valve, special amount kind of centre-pivoted butterfly valve.
The centre-pivoted butterfly valve volume is little, in light weight, and moment of torsion is little, valve opening and closing is rapid, laborsaving, and the media flow characteristic is bordering on straight line, and adjusting function is good, and the positive and negative direction sealability of valve is good.But existing centre-pivoted butterfly valve is non-flanged Clamp valves, because valve and pipeline junction easily leak thereby under ground piping seldom uses, makes its use be subjected to certain restriction.The jointing sealing that existing center line wafer type centre-pivoted butterfly valve is connected with pipeline is to protrude valve by the dress lining at the valve base sealing rubber bushing two ends at the spool chamber place of valve body to advance, the rubber sleeve of exit end face part is advanced by valve, outlet end wall and piping flange clamp the compacting realization, do not press tightly or unreal the leakage because of the error that produces causes the gum cover folder in actual valve manufacturing and in installing and using, or the excessive valve that causes of matching allowance fits badly generation valves leakage phenomenon between spool and seal rubber sleeve because of the gum cover internal diameter being dwindled the distortion of gum cover cramping after the oversize installation of gum cover projection to cause.Moreover, existing folder centre-pivoted butterfly valve sealing rubber cover all being had rigid backbone, the valve gum cover skeleton that specification is little adopts resin material to make, and its skeleton of valve that specification is big is generally made with cast aluminium.Resin matrix intensity is low, and cast aluminium skeleton matter is crisp easily to be corroded, and in use very easily damages and influences the normal use of valve.In addition, they have a common deficiency, exactly the valve rod place fracture easily takes place makes in the pipe medium infiltrate valve body and gum cover gap with the skeleton corrosion and damage by fracture place in the valve using process, cause the gum cover valve that comes off can not continue use.
The purpose of this utility model provides a kind of above ground piping that both can be used for, and also can be used under ground piping, and sealability is good, the internal sealed centre-pivoted butterfly valve of long service life.
The internal sealed centre-pivoted butterfly valve is on the spool chamber internal face of valve body of the centre-pivoted butterfly valve that is made of valve body, butterfly plate spool, valve core rod an annular groove to be arranged, annular groove is the left and right symmetry of symmetry plane with the cross section by the valve core rod central axis, be installed with in its of fixedlying connected circular diameter in the annular groove less than the ring packing rubber ring of valve core diameter with valve seal, on the butterfly plate spool two terminal circle dish at least one annular waterline is arranged, butterfly plate spool and ring packing rubber ring are that interference is sealed and matched.Valve body inlet/outlet end face radially outward stretches and forms radially annular shoulder, and piping flange and valve body end face compresses interface width flange gasket is clamped the sealing of compacting assurance valve and pipe joint when folder being connected with pipeline to increase valve.
It is fluted that ring packing rubber ring in the spool chamber is positioned at valve core rod perforation place, be set on sealing rubber ring on the valve core rod and crouch in the groove and compress the sealing with valve core rod axis hole place by the clamping sleeve that is set on the valve core rod, medium is released by the valve-rod cavity place in preventing to manage.
The internal sealed centre-pivoted butterfly valve is in order to be suitable for the different requirements of using, and its a kind of structural type is that valve body inlet/outlet end face has whole flange connecting, and valve is mounted on the pipeline by flange and seal for pipe joints.
The another kind of structural type of internal sealed centre-pivoted butterfly valve is that the internal sealed centre-pivoted butterfly valve that has adpting flange has telescopic pipe, have on the valve outlet end flange of flange internal sealed centre-pivoted butterfly valve of telescopic pipe and have stuffing box, be filled with stuffing box packing in the letter, have on the telescopic pipe of whole adpting flange and be set with Gland, telescopic pipe is connected the back Gland and is connected with valve body by fastening piece with the valve socket joint, filler in the stuffing box is compressed telescopic pipe and valve interface place are sealed and make telescopic pipe and valve form integral body.
The internal sealed centre-pivoted butterfly valve has been eliminated the deficiency of existing centre-pivoted butterfly valve, and valve is connected its jointing sealing of back and is easy to guarantee with pipeline.Valve body structure is simple, long service life.The valve volume is little, and is in light weight.Can satisfy the different requirements of using, both can be used for above ground piping and also can be used under ground piping.Structurally both can be made into the wafer type centre-pivoted butterfly valve, can be made into the flange-type centre-pivoted butterfly valve.
Accompanying drawing is embodiment of the present utility model, further specifies the utility model below in conjunction with embodiment.
Fig. 1 is an internal sealed centre-pivoted butterfly valve structural drawing.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
Fig. 4 is a flange internal sealed centre-pivoted butterfly valve structural drawing.
Fig. 5 is the flange internal sealed center line butterfly structural drawing that has telescopic pipe.
As Fig. 1, Fig. 2, shown in Figure 3, the internal sealed centre-pivoted butterfly valve is that the valve body spool chamber internal face of the centre-pivoted butterfly valve that is made of valve body (7), butterfly plate spool (10), the valve core rod (6) that is connected with the butterfly plate spool has annular hugging (8), the annular hugging is the left and right symmetry of symmetry plane with the cross section by the valve rod center line, and ring packing rubber ring (9) edge crouches and is connected on the valve body spool chamber wall in hugging and by sulfuration sealing integral body.Ring-shaped rubber seal ring internal cause diameter has waterline (14), (15) less than the Butterfly plate valve core diameter on the butterfly plate spool two terminal circle dish, and butterfly plate spool and the interference of ring packing rubber ring are sealed and matched.The whole positioning plate that has registration holes (1) (2) that connects is arranged, so that contraposition when installing on the valve body.Valve body inlet/outlet end face outwards stretches and forms radially shoulder (3), (4), and the width that compresses surface of contact of piping flange and valve end face makes the sealing of the compacted sturdy assurance jointing of flange gasket when folder being connected with pipeline to increase valve.The ring packing rubber ring outer ring edge face of valve body spool chamber is positioned at valve core rod perforation place and is shaped on groove (11), (16), crouches in the groove and compress perforation place sealing is spilt by perforation place with medium in preventing to manage by being sleeved on clamping sleeve (13), (18) on the valve core rod in O-ring seal (12), (17).
Upper end, valve body valve core rod chamber compresses seal ring (20) by ring set (5), (9) the valve core rod chamber is sealed.
Flange internal sealed centre-pivoted butterfly valve as shown in Figure 4, valve body inlet/outlet end has whole flange connecting (21), (22), valve is connected with pipeline by adpting flange.
The flange internal sealed centre-pivoted butterfly valve that has a telescopic pipe as shown in Figure 5, be shaped on follower (29) on the valve export end flange, stuffing box packing (28) is housed in the letter, be shaped on tapped bolt hole on the flange, have on the telescopic pipe (27) of whole adpting flange (26) and be set with Gland (23), telescopic pipe is connected with the valve socket joint, and Gland is connected on the valve body filler compressed by the locking of bolt (24), nut (25) telescopic pipe and valve interface are sealed.The scalable displacement of telescopic pipe is to adapt to requirements for pipes.The valve flanges that is shaped on stuffing box can be blind flange (as shown).
Claims (3)
1, a kind of internal sealed centre-pivoted butterfly valve, by valve body, the butterfly plate spool, valve core rod constitutes, it is characterized in that on the spool chamber internal face of valve body an annular groove being arranged, annular groove is the symmetry plane bilateral symmetry with the cross section by the valve core rod central axis, be installed with in its of fixedlying connected circular diameter in the annular groove less than the ring packing rubber ring of valve core diameter with valve seal, on the butterfly plate spool two terminal circle dish at least one annular waterline is arranged, butterfly plate spool and ring packing rubber ring are that interference is sealed and matched, valve body advances, the exit end face radially outward stretches and forms radial ringed shoulder, it is fluted that ring packing rubber ring in the spool chamber is positioned at valve core rod perforation place, is set on that rubber seal on the valve core rod crouches in the groove and compresses the valve core rod axis hole is sealed by being set on clamping sleeve on the valve core rod.
2, by the described internal sealed centre-pivoted butterfly valve of claim 1, it is characterized in that valve body inlet/outlet end face has whole flange connecting.
3, by the described internal sealed centre-pivoted butterfly valve of claim 2, it is characterized in that having stuffing box on the valve outlet end flange, be filled with stuffing box packing in the letter, have on the telescopic pipe of whole adpting flange and be set with Gland, telescopic pipe is connected with the valve socket joint, and Gland is connected with valve body by fastening piece filler in the stuffing box is compressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96241497 CN2288316Y (en) | 1996-10-25 | 1996-10-25 | Internal sealed centre-line butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96241497 CN2288316Y (en) | 1996-10-25 | 1996-10-25 | Internal sealed centre-line butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2288316Y true CN2288316Y (en) | 1998-08-19 |
Family
ID=33915883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96241497 Expired - Fee Related CN2288316Y (en) | 1996-10-25 | 1996-10-25 | Internal sealed centre-line butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2288316Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100343564C (en) * | 2006-03-27 | 2007-10-17 | 三门尔格科技有限公司 | Novel metal butterfly valve seal method |
| CN105355383A (en) * | 2015-12-15 | 2016-02-24 | 济南银河电气有限公司 | 10kV oil-immersed transformer water cooling device |
-
1996
- 1996-10-25 CN CN 96241497 patent/CN2288316Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100343564C (en) * | 2006-03-27 | 2007-10-17 | 三门尔格科技有限公司 | Novel metal butterfly valve seal method |
| CN105355383A (en) * | 2015-12-15 | 2016-02-24 | 济南银河电气有限公司 | 10kV oil-immersed transformer water cooling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |