JPS5644479A - Quick closing check valve - Google Patents
Quick closing check valveInfo
- Publication number
- JPS5644479A JPS5644479A JP11901879A JP11901879A JPS5644479A JP S5644479 A JPS5644479 A JP S5644479A JP 11901879 A JP11901879 A JP 11901879A JP 11901879 A JP11901879 A JP 11901879A JP S5644479 A JPS5644479 A JP S5644479A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve body
- conduit
- fluid pressure
- quick closing
- 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.)
- Granted
Links
Landscapes
- Check Valves (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
PURPOSE: To prevent generation of water hammering at the time of closing a quick closing type check valve equipped with a fluid pressure energizer which energizes a valve body to the 'close' direction by means of fluid pressure, by setting the energizing force to the valve body at zero during pumping-up operation and giving large energizing force at the time of shut-off.
CONSTITUTION: When power supply is cut off for pumping up operation, an electromagnet is deenergized to change the position of a port for a directional reversing valve 7, and a conduit 11 is connected with a conduit 17, while a conduit 18 is closed. Oil in an accumulator 12 is then introduced in a fluid pressure cylinder 9 which actuates a valve body 1 of the quick closing type reversing valve, a piston 8 is forced out, the valve body 1 is strongly energized through a crank 6 toward the 'close' direction, fluid flow becomes zero and at the same time the valve body 1 is quickly closed. Since the valve is shut off before counterflow is generated, no large water hammer is exerted on the valve.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54119018A JPS5917273B2 (en) | 1979-09-17 | 1979-09-17 | quick-closing check valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54119018A JPS5917273B2 (en) | 1979-09-17 | 1979-09-17 | quick-closing check valve |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5644479A true JPS5644479A (en) | 1981-04-23 |
JPS5917273B2 JPS5917273B2 (en) | 1984-04-20 |
Family
ID=14750941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54119018A Expired JPS5917273B2 (en) | 1979-09-17 | 1979-09-17 | quick-closing check valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5917273B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100419187B1 (en) * | 2000-12-30 | 2004-02-18 | 이영범 | Automatic control check valve |
JP2013170460A (en) * | 2012-02-17 | 2013-09-02 | Hitachi Ltd | Preceding-time standby pump and operation method thereof |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6213741A (en) * | 1985-07-09 | 1987-01-22 | Nippon Soken Inc | Injection rate control mechanism of fuel injection pump |
CN103994065A (en) * | 2014-06-12 | 2014-08-20 | 佛山市优霸机械设备有限公司 | One-way valve plunger metering pump enhanced through external force |
-
1979
- 1979-09-17 JP JP54119018A patent/JPS5917273B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100419187B1 (en) * | 2000-12-30 | 2004-02-18 | 이영범 | Automatic control check valve |
JP2013170460A (en) * | 2012-02-17 | 2013-09-02 | Hitachi Ltd | Preceding-time standby pump and operation method thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS5917273B2 (en) | 1984-04-20 |
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