GB562084A - Improvements in and relating to fluid controlling valves - Google Patents
Improvements in and relating to fluid controlling valvesInfo
- Publication number
- GB562084A GB562084A GB352643A GB352643A GB562084A GB 562084 A GB562084 A GB 562084A GB 352643 A GB352643 A GB 352643A GB 352643 A GB352643 A GB 352643A GB 562084 A GB562084 A GB 562084A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- pressure
- spring
- main
- piston
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
562,084. Safety cut-off valves. SAUNDERS VALVE CO., Ltd., and SUTTON, F. March 3, 1943, No. 3526. Divided out of 559,679. [Class 135] A safety cut-off device comprises a self-closing and self-locking diaphragm valve closed and held closed upon a fall in the fluid pressure in the main conduit by a piston moving in a cylinder to which fluid has normally no access, but to which pressure is admitted by an auxiliary valve which opens under spring pressure against the pressure of fluid upon it and is locked in the open position. The main valve comprises a diaphragm 1 adapted to co-operate with a weir 3 and backed by. an annular comb 6 adapted to mesh with a comb 5 formed on the casing. The comb is screwed to a stud 19 having a head embedded in a boss on the diaphragm within a strengthening ring 21. The comb is also pinned to a rod 27 adjustably screwed to a piston 8 and secured by an eccentric set-screw 30. The piston is acted on by a spring 28 and its downward movement is limited by shoulder 25. To open the valve a push-button 56, protected by a pivoted cover 57 and padlock 58, is depressed to open an auxiliary valve 55 and increase the spring- loading on a non-return valve 49. This releases the pressure above a piston 41 and permits pressure in the main actuating chamber to raise a piston valve against the action of a spring 36 to vent the main chamber through passages 51, 53 and 48. At the same time a cam 46 moves to allow a pressure inlet valve to close under the action of a spring 34. If the push-button is now released and the main conduit is under pressure, the main valve remains open. In the event of the pressure falling below a predetermined value, the spring 36 acts through the cam to reopen the valve and admit pressure to close the main valve. A part of the cam prevents restoration of pressure alone reclosing the valve 29.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB352643A GB562084A (en) | 1943-03-03 | 1943-03-03 | Improvements in and relating to fluid controlling valves |
DE1950S0002291 DE1648108U (en) | 1943-03-03 | 1950-10-03 | SELF-CLOSING DIAPHRAGM VALVE. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB352643A GB562084A (en) | 1943-03-03 | 1943-03-03 | Improvements in and relating to fluid controlling valves |
Publications (1)
Publication Number | Publication Date |
---|---|
GB562084A true GB562084A (en) | 1944-06-16 |
Family
ID=9759985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB352643A Expired GB562084A (en) | 1943-03-03 | 1943-03-03 | Improvements in and relating to fluid controlling valves |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1648108U (en) |
GB (1) | GB562084A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2780432A (en) * | 1950-10-12 | 1957-02-05 | Shafer Valve Co | Automatic reclosing device for plug type valves |
CN108087603A (en) * | 2018-01-20 | 2018-05-29 | 河北和润燃气调压器有限公司 | A kind of outer pressure guiding gas pressure regulator, governor |
-
1943
- 1943-03-03 GB GB352643A patent/GB562084A/en not_active Expired
-
1950
- 1950-10-03 DE DE1950S0002291 patent/DE1648108U/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2780432A (en) * | 1950-10-12 | 1957-02-05 | Shafer Valve Co | Automatic reclosing device for plug type valves |
CN108087603A (en) * | 2018-01-20 | 2018-05-29 | 河北和润燃气调压器有限公司 | A kind of outer pressure guiding gas pressure regulator, governor |
CN108087603B (en) * | 2018-01-20 | 2024-04-19 | 湖南东欣能源有限公司 | External pressure-guiding type gas pressure regulator |
Also Published As
Publication number | Publication date |
---|---|
DE1648108U (en) | 1952-12-18 |
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