CN1611823A - Pneumatic and manual high corrosion resistance two-way sealed butterfly valve - Google Patents
Pneumatic and manual high corrosion resistance two-way sealed butterfly valve Download PDFInfo
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- CN1611823A CN1611823A CN 200310108288 CN200310108288A CN1611823A CN 1611823 A CN1611823 A CN 1611823A CN 200310108288 CN200310108288 CN 200310108288 CN 200310108288 A CN200310108288 A CN 200310108288A CN 1611823 A CN1611823 A CN 1611823A
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Abstract
The invention relates to a gas operated and hand operated highly corrosion resistant two way sealed butterfly valve, which is featured by reasonable structure, reliability, compact installation between the axis and the valve plate, reliable opening and closing, two way sealing, is not affected by the direction of flowing medium or location and can be installed at any place of the pipe. The valve shaft adopts the half axis structure and the valve plate adopts the girder construction. The butterfly valve adopts double eccentric sealed construction and when being closed, the seal ring of the valve plate moves to the seal valve seat of flange valve body, extrudes the sealing surface. The seal ring is pressed uniformly and has the function of two way sealing. The seal valve seat of flange valve body is made by means of welding the 1Cr18Ni8Ti stainless acid resisting steel and the seal interface of the valve is featured by the corrosion resistance, no fouling and abrasion resistance. The rubber seal ring is fixed on the valve plate through mechanical means, is firm and convenient for field adjustment or replacing the seal ring. The gas operated actuating device connects with the interface transferring the stator signals to the central control room and the interface receiving the remote control signal to realize the remote control and adjustment.
Description
The present invention relates to improved butterfly valve on a kind of industrial pipeline, be that the thin butterfly valve pneumatic actuating device of a kind of body has manual and pneumatic double-purpose functional, have manual and pneumatic switching mechanism, handwheel can not rotate when pneumatic, and handwheel can not cause when driving that Pneumatic rotor rotates.Gate valve weight on the existing pipeline is very heavy, can not install on suspended piping, as install and must design a lot of supports, has wasted a large amount of metals and structural material and man-hour, and has influenced the traffic under the pipeline.
The objective of the invention is: a kind of pneumatic and manual high-corrosion resisting two-way sealed butterfly valve is provided, it is the thin valve of a kind of body, butterfly valve reasonable mechanical structure, reliable, axle and valve plate close installation, open and close reliably, have positive and negative two way sealed function, be not subjected to during installation MEDIA FLOW to restriction, be not subjected to the influence of spatial position yet, can on pipeline, install arbitrarily.Valve shaft adopts the semiaxis structure, and valve plate adopts truss structure.Butterfly valve adopts two eccentric sealed structures, and the valve plate seal ring relies on valve seal valve seat crush seal face with center displacement when closing, and the seal ring pressurized is even, and has positive and negative two way sealed performance.Valve seal valve seat built-up welding Stainless Acid Resistant Steel is made, and valve sealing face has corrosion-resistant non-scaling, and is wear-resistant.Rubber seal is fixed on the valve plate with machinery type, and sound construction is convenient to the on-the-spot seal ring of adjusting or change.Drive unit and valve joint are provided with the shaft sealing inspection and adjust the hole, must not dismantle drive unit and other parts again, and axial seal is adjusted or changed by checking, the valve shaft sealing material adopts Expanded graphite.The drive unit outdoor type can prevent dust fully, protection against the tide and waterproof, and no matter valve is used in any operating mode, and drive unit all is in good lubricating status, guarantees the working life of valve.Butterfly valve is furnished with the adjustable mechanical limit stoper and valve plate opens and closes lever position indicator, and the arrow and the switch printed words sign of tangible switch direction all arranged on the wheel rim of driving handwheel.Pneumatic actuating device has manual and pneumatic double-purpose functional, has manual and pneumatic switching mechanism, and handwheel can not rotate when pneumatic, and handwheel can not cause when driving that Pneumatic rotor rotates.Pneumatic actuating device and configuration are to the interface and the signaling interface of accepting central control chamber of Central Control Room transmission state signal.Mechanical cover adopts double sealing structure, and has anti-hammering function.
This product has the following advantages: a kind of pneumatic and manual high-corrosion resisting two-way sealed butterfly valve, include body, mandrel, the valve body mechanical connection, corrosion-resistant characteristics, butterfly plate has cam action and except all contact frictions between Sealing in valve stroke and the valve seat, making it frequent keying is the sealing effect that still has all the time, seal ring contacts with valve seat with certain wrapping angle, face is equivalent to an elongated wedge again around centering on it equably, and make active force be evenly distributed on the valve seat fully, owing to be that valve seat is stressed, valve shaft adopts the semiaxis structure, and valve plate adopts truss structure.Butterfly valve adopts two eccentric sealed structures, and the valve plate seal ring relies on valve seal valve seat crush seal face with center displacement when closing, and the seal ring pressurized is even, and has positive and negative two way sealed performance.Valve seal valve seat built-up welding Stainless Acid Resistant Steel is made, and valve sealing face has corrosion-resistant non-scaling, and is wear-resistant.Rubber seal is fixed on the valve plate with machinery type, and sound construction is convenient to the on-the-spot seal ring of adjusting or change.
Be widely used in: oilfield exploitation, chemical industry, petrochemical industry, coal gas, rock gas, thermoelectricity, the water power plant, iron and steel, urban construction, tap water, sewage treatment, pharmacy, engineerings such as food are particularly used on the pipeline transport engineering.
The present invention is easy to use, exchange to install light and handy, when below adopting during embodiment, gate valve under pressure and the material and stop valve, its weight only is 1/3 of gate valve and stop valve, so has reduced cost greatly.
Fig. 1 is the longitudinal sectional drawing of a kind of concrete structure of the present invention.
Describe details and the working condition that proposes concrete structure according to the present invention in detail below in conjunction with Fig. 1.
This invention is by 1, end cap, 2, socket head screw, 3, pad, 4, valve rod, 5, copper sheathing, 6, valve body, 7, the dish plate, 8, seal ring, 9, trim ring, 10, hex screw, 11, pin, 12, filler, 13, Gland, 14, support, 15, double-screw bolt, 16, packing ring, 17, stud, 18, nut, 19, compositions such as air control unit, control gear 19 connects 4 one groups of butterfly plates 7 of valve rods, by bolton on valve rod 4, valve body 6 sealing surfaces and butterfly plate 7 sealing couplings, air control unit coal gas, rock gas is to reach sealing purpose, air control unit adapts to especially at coal gas, uses on the natural gas line.
Claims (1)
- A kind of Pneumatic and manual high-corrosion resisting two-way sealed butterfly valve, by end cap, socket head screw, pad, valve rod, copper sheathing, the dish plate, seal ring, trim ring, hex screw, pin, filler, Gland, support, double-screw bolt, packing ring, stud, nut, the flange-type valve body, compositions such as Pneumatic actuator, it is characterized in that: air control unit and mandrel mechanical connection, control gear and flange-type valve body mechanical connection, pay butterfly plate with one group of sealing and be connected on the mandrel with bolt machinery, pneumatic actuating device and configuration are to the interface and the signaling interface mechanical connection of accepting central control chamber of Central Control Room transmission state signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310108288 CN1611823A (en) | 2003-10-30 | 2003-10-30 | Pneumatic and manual high corrosion resistance two-way sealed butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310108288 CN1611823A (en) | 2003-10-30 | 2003-10-30 | Pneumatic and manual high corrosion resistance two-way sealed butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1611823A true CN1611823A (en) | 2005-05-04 |
Family
ID=34758542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310108288 Pending CN1611823A (en) | 2003-10-30 | 2003-10-30 | Pneumatic and manual high corrosion resistance two-way sealed butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1611823A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767627A (en) * | 2012-06-20 | 2012-11-07 | 朱崇新 | Rapid pneumatic automatically-controlled gas safety shut-off valve |
| CN106885029A (en) * | 2017-04-13 | 2017-06-23 | 江苏通达船用阀泵有限公司 | A kind of Pneumatic butterfly valve device |
-
2003
- 2003-10-30 CN CN 200310108288 patent/CN1611823A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767627A (en) * | 2012-06-20 | 2012-11-07 | 朱崇新 | Rapid pneumatic automatically-controlled gas safety shut-off valve |
| CN106885029A (en) * | 2017-04-13 | 2017-06-23 | 江苏通达船用阀泵有限公司 | A kind of Pneumatic butterfly valve device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |