GB860570A - Improvements in or relating to liquid flow control devices - Google Patents
Improvements in or relating to liquid flow control devicesInfo
- Publication number
- GB860570A GB860570A GB2248658A GB2248658A GB860570A GB 860570 A GB860570 A GB 860570A GB 2248658 A GB2248658 A GB 2248658A GB 2248658 A GB2248658 A GB 2248658A GB 860570 A GB860570 A GB 860570A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- liquid
- tube
- cock
- diaphragm
- 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
- F16K21/00—Fluid-delivery valves, e.g. self-closing valves
- F16K21/04—Self-closing valves, i.e. closing automatically after operation
- F16K21/18—Self-closing valves, i.e. closing automatically after operation closed when a rising liquid reaches a predetermined level
- F16K21/20—Self-closing valves, i.e. closing automatically after operation closed when a rising liquid reaches a predetermined level by means making use of air-suction through an opening closed by the rising liquid
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
860,570. Fluid-pressure servomotor control systems; valves. EMCO BRASS MFG. CO. Ltd. June 19, 1959 [July 14, 1958], No. 22486/58. Class 135. Apparatus for automatically closing the liquid flow control valve described in Specification 803,738 when the liquid level in a tank being filled by the valve reaches a desired level, includes a Venturi discharge nozzle 54 in the outlet 3 connected on its expansion side by a duct 55 to a flexible U tube 56 whose shorter limb opens into a chamber 52 closed by a diaphragm 47 and longer limb extends downwardly at its end to the desired filling level of the tank. The diaphragm 47 is urged upwardly by a spring 51 and connected to a valve piston 43 slidable in a cylinder 40 having connections 41, 42 with the balancing and valve chambers 5, 4 respectively. Normally the valve piston 43 closes the connection 42 to cut off communication between the chambers. After the opening of the valve on the rotation of a cock 24 to bring cock and cover ports 29, 30 into alignment to expel liquid from the balancing chamber previously admitted thereto through a bleed line 18, the outflowing liquid passing through the Venturi 54 sucks air through the duct 55 and tube 56. When the end 57 of the tube 56 is closed by the level of liquid in the tank, suction in the tube causes downward movement of the diaphragm 47 and the valve piston 43 to open communication between the valve and balancing chambers to close the valve even although the cock 24 is in valve open position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2248658A GB860570A (en) | 1958-07-14 | 1958-07-14 | Improvements in or relating to liquid flow control devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2248658A GB860570A (en) | 1958-07-14 | 1958-07-14 | Improvements in or relating to liquid flow control devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB860570A true GB860570A (en) | 1961-02-08 |
Family
ID=10180184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2248658A Expired GB860570A (en) | 1958-07-14 | 1958-07-14 | Improvements in or relating to liquid flow control devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB860570A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019022931A1 (en) * | 2017-07-24 | 2019-01-31 | Fisher Controls International Llc | Fluid flow control apparatus for use with fluid valves |
| CN113757434A (en) * | 2021-08-03 | 2021-12-07 | 唐山黑猫炭黑有限责任公司 | Bleeding valve in carbon black production line |
-
1958
- 1958-07-14 GB GB2248658A patent/GB860570A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019022931A1 (en) * | 2017-07-24 | 2019-01-31 | Fisher Controls International Llc | Fluid flow control apparatus for use with fluid valves |
| US10400899B2 (en) | 2017-07-24 | 2019-09-03 | Fisher Controls International, Llc | Fluid flow control apparatus for use with fluid valves |
| US10890263B2 (en) | 2017-07-24 | 2021-01-12 | Fisher Controls International Llc | Fluid flow control apparatus for use with fluid valves |
| CN113757434A (en) * | 2021-08-03 | 2021-12-07 | 唐山黑猫炭黑有限责任公司 | Bleeding valve in carbon black production line |
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