GB392396A - Improvements in apparatus for limiting pressure of fluids - Google Patents
Improvements in apparatus for limiting pressure of fluidsInfo
- Publication number
- GB392396A GB392396A GB23429/32A GB2342932A GB392396A GB 392396 A GB392396 A GB 392396A GB 23429/32 A GB23429/32 A GB 23429/32A GB 2342932 A GB2342932 A GB 2342932A GB 392396 A GB392396 A GB 392396A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- piston
- pipe
- pressure
- chamber
- 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
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/14—Control of fluid pressure with auxiliary non-electric power
- G05D16/16—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid
- G05D16/166—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid using pistons within the main valve
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Safety Valves (AREA)
Abstract
392,396. Pressure-relief valves. PETIT, A., 5, Rue du Sahel, Paris. Aug. 22, 1932, No. 23429. [Class 135.] A relief valve 3, Fig. 2, is held to its seat by fluid pressure in a chamber 26 above a piston 5 on the valve spindle 4, fluid being admitted to the chamber 26 through a controlled orifice 27. When the allowable pressure in the pipe 1 is attained, a piston 29 lifts against the action of a spring 35 and a passage 37 in the spindle 31 makes communication between the chamber 26 and an exhaust pipe 2, with the result that the main valve 3 lifts. The valve 3 may be raised when desired by operating a screwed stem 40. The auxiliary piston 29 may be isolated from the main valve 3 by the introduction of a partition 42 and pipe 43. In a modification, the main valve 3, Fig. 1, is loaded by a spring 8, and pressure fluid is led to both sides of the piston 5. An auxiliary valve 13 has a stem engaging the piston 5. In operation, when the main valve 3 starts to lift, the auxiliary valve 13 opens and a pipe 22 establishes communication between the piston space 21 and the exhaust pipe 2, with the result that an added lift is given to the valve 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB23429/32A GB392396A (en) | 1932-08-22 | 1932-08-22 | Improvements in apparatus for limiting pressure of fluids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB23429/32A GB392396A (en) | 1932-08-22 | 1932-08-22 | Improvements in apparatus for limiting pressure of fluids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB392396A true GB392396A (en) | 1933-05-18 |
Family
ID=10195460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23429/32A Expired GB392396A (en) | 1932-08-22 | 1932-08-22 | Improvements in apparatus for limiting pressure of fluids |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB392396A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2487418A (en) * | 1945-09-15 | 1949-11-08 | Bell & Gossett Co | Pressure relief valve |
| GB2137775A (en) * | 1983-03-09 | 1984-10-10 | Robert Mcgregor Fairweather | Improvements relating to pressure and safety relief valves |
-
1932
- 1932-08-22 GB GB23429/32A patent/GB392396A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2487418A (en) * | 1945-09-15 | 1949-11-08 | Bell & Gossett Co | Pressure relief valve |
| GB2137775A (en) * | 1983-03-09 | 1984-10-10 | Robert Mcgregor Fairweather | Improvements relating to pressure and safety relief valves |
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