JPS56160471A - Relief valve - Google Patents
Relief valveInfo
- Publication number
- JPS56160471A JPS56160471A JP6054380A JP6054380A JPS56160471A JP S56160471 A JPS56160471 A JP S56160471A JP 6054380 A JP6054380 A JP 6054380A JP 6054380 A JP6054380 A JP 6054380A JP S56160471 A JPS56160471 A JP S56160471A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- valve element
- valve
- force
- pressure
- 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
- Safety Valves (AREA)
Abstract
PURPOSE: To prevent the damage of contact portions of valve element and valve seat of a relief valve in which the valve element is pushed open to release a pressurized fluid, by keeping the pressure of force for pushing the valve element on the valve seat, lower than set pressure independently of itself.
CONSTITUTION: A valve element 1 consists of a cylinder 6 and a piston 7. An orifice 9 is provided in the bottom of the cylinder 6. The cylinder 6 and the pistion 7 are pushed toward a valve seat 2 by different springs 3, 16. When the pressure in a pipe passage 5 has risen, the piston 7 is first pushed up into contact with a stopper. When the pressure has risen further, the force of pressurized fluid acting on the cylinder 6 exceeds that of the springs 3, 16 to push up the cylinder 6 to cause relief action. Since the restoring force of the spring 16 is restricted by a descent limit stopper 13, the force of the spring 16 does not act to push the valve element 1 on the valve seat 2.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6054380A JPS56160471A (en) | 1980-05-09 | 1980-05-09 | Relief valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6054380A JPS56160471A (en) | 1980-05-09 | 1980-05-09 | Relief valve |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56160471A true JPS56160471A (en) | 1981-12-10 |
JPS6230342B2 JPS6230342B2 (en) | 1987-07-01 |
Family
ID=13145303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6054380A Granted JPS56160471A (en) | 1980-05-09 | 1980-05-09 | Relief valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56160471A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6514232B1 (en) * | 1999-06-10 | 2003-02-04 | Andrea Gibertoni | Vacuum adjustment valve, particularly for thoracic drainage devices |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4964946A (en) * | 1972-10-23 | 1974-06-24 |
-
1980
- 1980-05-09 JP JP6054380A patent/JPS56160471A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4964946A (en) * | 1972-10-23 | 1974-06-24 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6514232B1 (en) * | 1999-06-10 | 2003-02-04 | Andrea Gibertoni | Vacuum adjustment valve, particularly for thoracic drainage devices |
Also Published As
Publication number | Publication date |
---|---|
JPS6230342B2 (en) | 1987-07-01 |
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