GB543436A - Improvements in emergency automatic shut-off valves - Google Patents
Improvements in emergency automatic shut-off valvesInfo
- Publication number
- GB543436A GB543436A GB1686040A GB1686040A GB543436A GB 543436 A GB543436 A GB 543436A GB 1686040 A GB1686040 A GB 1686040A GB 1686040 A GB1686040 A GB 1686040A GB 543436 A GB543436 A GB 543436A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- piston
- chest
- fluid pressure
- liner
- 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
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/32—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting on a servo-mechanism or on a catch-releasing mechanism
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
543,436. Valves. COCKBURNS, Ltd., RODGER, J., and GRANT, T. Nov. 25, 1940, No. 16860. [Class 135] An emergency automatic shut-off valve comprises a valve chest 1, a cylindrical liner 11 with lateral ports 13 fitted therein, an axially movable valve 6 guided within the chest 1 and engageable with a seat 8 on the end of the liner, and a piston 10 fixed to the valve 6 and movable within the liner. The chest 1 has inlet and outlet ports 2, 3 respectively. The chamber 14 above the piston 10 is connected through an adjustable needle valve 16 to a point on the outlet side of the valve, and a restricted duct 17 passes through the piston 10. In operation the fluid pressure built up in the chamber 14 is sufficient to resist the upward fluid thrust on the valve and piston. Should an excess fluid pressure drop occur across the valve the fluid pressure in the chamber falls accordingly and the valve closes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1686040A GB543436A (en) | 1940-11-25 | 1940-11-25 | Improvements in emergency automatic shut-off valves |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1686040A GB543436A (en) | 1940-11-25 | 1940-11-25 | Improvements in emergency automatic shut-off valves |
Publications (1)
Publication Number | Publication Date |
---|---|
GB543436A true GB543436A (en) | 1942-02-25 |
Family
ID=10084989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1686040A Expired GB543436A (en) | 1940-11-25 | 1940-11-25 | Improvements in emergency automatic shut-off valves |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB543436A (en) |
-
1940
- 1940-11-25 GB GB1686040A patent/GB543436A/en not_active Expired
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