GB708670A - Improvements in or relating to fluid metering valve apparatus - Google Patents
Improvements in or relating to fluid metering valve apparatusInfo
- Publication number
- GB708670A GB708670A GB2810651A GB2810651A GB708670A GB 708670 A GB708670 A GB 708670A GB 2810651 A GB2810651 A GB 2810651A GB 2810651 A GB2810651 A GB 2810651A GB 708670 A GB708670 A GB 708670A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- piston
- sleeve
- seat
- pressure
- 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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D3/00—Flushing devices operated by pressure of the water supply system flushing valves not connected to the water-supply main, also if air is blown in the water seal for a quick flushing
- E03D3/02—Self-closing flushing valves
- E03D3/04—Self-closing flushing valves with piston valve and pressure chamber for retarding the valve-closing movement
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
708,670. Valves. WILD & CO., Ltd., A. G. Dec. 1, 1952 [Nov. 30, 1951], No. 28106/51. Class 135 A flushing device of the kind comprising an inlet 8, Fig. 2, situated above a seat for the discharge valve 5 and an outlet 9 situated below it, a sleeve 18 extending downwards from the valve serving to guide the latter throughout its rising and falling movements, a hollow piston carried by the valve and having sufficient clearance from the wall of the casing to allow inlet fluid to leak into a balancing chamber above the piston, and the peripherally-projecting undersurface of the piston being acted upon by inlet pressure to lift and open the valve when the pressure in the balancing chamber is relieved by actuation of a vent valve 17, is characterized in that the vent valve is a sliding member and is made dead beat in action by peripheral friction means, e.g. a fibre ring 27 or a metal spring. The vent passage 11, 13 ... 15, leading from the balancing chamber is normally closed by a disc valve 17 pressed upwards on to its seat by the pressure of the liquid in the chamber. Valve 17 is pushed off of its seat by means of a spring- returned knob 36 and tappet 34. Rotation of the sleeve and piston is prevented by a set-screw 21 riding in a slot or groove in the sleeve. The main discharge takes place into the interior of the sleeve through apertures 19. Towards the end of its upward movement, piston 5 contacts an abutment 28 depending from valve 17 and forces the latter on to its seat to enable pressure to be built up again in the balancing chamber to close valve 4. When valve 17 is seated, the valve and abutment 28 constitute a dead stop limiting upward movement of the piston. The discharge through passages 13 ... 15 may be controlled by an adjustable throttle. Inlet pressure is maintained constant by a spring-pressed disc valve 42, Fig. 4, the loading spring 41 of which may be of bi-metallic construction to correct for changes in viscosity of the liquid. Specification 621,103 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2810651A GB708670A (en) | 1951-11-30 | 1951-11-30 | Improvements in or relating to fluid metering valve apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2810651A GB708670A (en) | 1951-11-30 | 1951-11-30 | Improvements in or relating to fluid metering valve apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB708670A true GB708670A (en) | 1954-05-05 |
Family
ID=10270367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2810651A Expired GB708670A (en) | 1951-11-30 | 1951-11-30 | Improvements in or relating to fluid metering valve apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB708670A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076220A (en) * | 2021-08-31 | 2022-02-22 | 北京宇航系统工程研究所 | Integrated electric control relief valve |
-
1951
- 1951-11-30 GB GB2810651A patent/GB708670A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076220A (en) * | 2021-08-31 | 2022-02-22 | 北京宇航系统工程研究所 | Integrated electric control relief valve |
| CN114076220B (en) * | 2021-08-31 | 2023-06-30 | 北京宇航系统工程研究所 | Integrated electric control safety overflow valve |
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