GB1208605A - Improvements relating to liquid flow control valves - Google Patents
Improvements relating to liquid flow control valvesInfo
- Publication number
- GB1208605A GB1208605A GB4034167A GB4034167A GB1208605A GB 1208605 A GB1208605 A GB 1208605A GB 4034167 A GB4034167 A GB 4034167A GB 4034167 A GB4034167 A GB 4034167A GB 1208605 A GB1208605 A GB 1208605A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- valve
- locking device
- closed
- passage
- 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
- G05D7/00—Control of flow
- G05D7/01—Control of flow without auxiliary power
- G05D7/0126—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs
- G05D7/0133—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs within the flow-path
- G05D7/014—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs within the flow-path using sliding elements
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/03—Control of flow with auxiliary non-electric power
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Power Engineering (AREA)
- Safety Valves (AREA)
Abstract
1,208,605. Valves. WHESSOE Ltd. 14 Aug., 1968 [21 Aug., 1967; 4 Sept., 1967], Nos. 38428/67 and 40341/67. Heading F2V. [Also in Division G3] The flow of liquid through a drop pipe 31 into a vessel is controlled by a valve 34 movable between a closed position in which the liquid can flow at a limited rate through an opening 42 and an open position in which the liquid can flow at a higher rate, a releasable locking device 48 normally preventing movement of the valve, a pneumatic chamber 53 and means 39 responsive to the pressure in the chamber for releasing the locking device, a relief passage 54 communicating with the chamber 53 and having an outlet adjacent that of the drop pipe to maintain the pressure in the chamber 53 normal until the liquid level closes the outlet from the relief passage, and means 52, 51, 52 for applying a pressure differing from that of the atmosphere to the chamber 53 whereby the locking device is released when the outlet from the relief passage is closed. In operation, a cam lever 50 first lifts a valve 43 to permit liquid to flow through the opening 42 until the end of the passage 54 is closed, causing reduced pressure in the chamber 53 and movement of the diaphragm 39 to release the locking device 48. Continued rotation of the cam lever 50 now lifts a second valve 47 to equalize the pressures on opposite sides of a plunger 35 attached to the main valve 34 and subsequently lifts the main valve itself. The passage 52 may be telescopic, as shown, or may be formed by spirally wound flexible tubing and the passage 54 may be closed by a float or solenoid-actuated valve, the solenoid being energized when the vessel has been earthed. In a simplified construction, the valve (4, Fig. 1) is secured to a horizontal spring-loaded spindle (5) controlled by the locking device (20) and has permanently open passages (7, 12) to reduce the pressure in the chamber (13) when the relief passage (21) is closed by the liquid level in the vessel being filled.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3590886D US3590886A (en) | 1967-08-21 | 1968-07-29 | Liquid flow control valves |
DE19681798056 DE1798056C (en) | 1967-08-21 | 1968-08-14 | Device for controlling the amount of liquid flowing through a downpipe into a container |
FR1582655D FR1582655A (en) | 1967-08-21 | 1968-08-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3842867 | 1967-08-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1208605A true GB1208605A (en) | 1970-10-14 |
Family
ID=10403370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4034167A Expired GB1208605A (en) | 1967-08-21 | 1967-08-21 | Improvements relating to liquid flow control valves |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1208605A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2420702A1 (en) * | 1978-03-22 | 1979-10-19 | Regel Messtechnik Gmbh | SAFETY SHUT-OFF VALVE |
-
1967
- 1967-08-21 GB GB4034167A patent/GB1208605A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2420702A1 (en) * | 1978-03-22 | 1979-10-19 | Regel Messtechnik Gmbh | SAFETY SHUT-OFF VALVE |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |