JPS5683666A - Emergency shutt-off device for butterfly valve - Google Patents
Emergency shutt-off device for butterfly valveInfo
- Publication number
- JPS5683666A JPS5683666A JP16017379A JP16017379A JPS5683666A JP S5683666 A JPS5683666 A JP S5683666A JP 16017379 A JP16017379 A JP 16017379A JP 16017379 A JP16017379 A JP 16017379A JP S5683666 A JPS5683666 A JP S5683666A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- arm
- valve
- link
- dead
- 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.)
- Pending
Links
Landscapes
- Safety Valves (AREA)
- Lift Valve (AREA)
Abstract
PURPOSE: To enable to reduce a weight of a dead weight remarkably by a method wherein a link mechanism is interposed between an arm and the dead weigh and the valve is closed with a required rotating torque by pivoting the arm indirectly.
CONSTITUTION: When an emergency situation occured and a solenoid valve 37 is operated by receiving a shutt-off signal, a releasing link 36 is attracted, contact between a releasing lever 33 and a lifting lever 28 are disconnected, a pin 35 is dropped, the lock of the dead weight 16 is released and the dead weight 16 is lowered by gravity along a frame 22. A link 14 is interposed between the arm 12 and the weight 16 and the arm 12 connected to the link 14 is pivoted in accompanied with the lowering of the weight 16, therefore, the valve shaft 3 is pivoted to a direction to close the valve body 4. A rotating torque substantially approximate to the required rotating torque may be obtained until the opening degree of the valve is reduced to 0°, accordingly, the weight of the dead weight 16 may be reduced remarkably.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16017379A JPS5683666A (en) | 1979-12-10 | 1979-12-10 | Emergency shutt-off device for butterfly valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16017379A JPS5683666A (en) | 1979-12-10 | 1979-12-10 | Emergency shutt-off device for butterfly valve |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5683666A true JPS5683666A (en) | 1981-07-08 |
Family
ID=15709421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16017379A Pending JPS5683666A (en) | 1979-12-10 | 1979-12-10 | Emergency shutt-off device for butterfly valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5683666A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103939658A (en) * | 2014-04-29 | 2014-07-23 | 天津福得士阀门有限公司 | Valve with electromagnetic rapid closing control function |
-
1979
- 1979-12-10 JP JP16017379A patent/JPS5683666A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103939658A (en) * | 2014-04-29 | 2014-07-23 | 天津福得士阀门有限公司 | Valve with electromagnetic rapid closing control function |
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