GB976940A - Improvements in non-return valves for liquid pumps - Google Patents
Improvements in non-return valves for liquid pumpsInfo
- Publication number
- GB976940A GB976940A GB4436362A GB4436362A GB976940A GB 976940 A GB976940 A GB 976940A GB 4436362 A GB4436362 A GB 4436362A GB 4436362 A GB4436362 A GB 4436362A GB 976940 A GB976940 A GB 976940A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pin
- pressure
- closure
- ports
- nov
- 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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D5/00—Controlling water feed or water level; Automatic water feeding or water-level regulators
- F22D5/18—Controlling water feed or water level; Automatic water feeding or water-level regulators for varying the speed or delivery pressure of feed pumps
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Safety Valves (AREA)
Abstract
976,940. Valves. KONINKLTJKE MASCHINENFABRIK GEBR. STORK & CO. N.V Nov. 23, 1962 [Nov. 27. 1961], No. 44363/62. Heading F2V. A non-return valve for use on the pressure side of a liquid pump has a pin 5 extending in the direction of movement of a closure 2 and having a portion of reduced cross-sectional area to open ports 11 leading to a bypass duct 7 when the closure 2 is seated. The pressure at the ports 11 also acts through a bore 14 in a space between the end of the pin and a nut 9 locked by a strip 10. A fixed throttle 12 is provided in the transfer duct 7 and the ports 11 are arranged in a helical series. The fluid-pressure forces acting on the pin 5 assist the spring 4 to a decreasing extent as the closure 2 opens and the pressure within the nut 9 is increased by the leftward end of the bore 14 approaching the mouth of the bush 6 in which the pin 5 slides.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL271839 | 1961-11-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB976940A true GB976940A (en) | 1964-12-02 |
Family
ID=19753437
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4436362A Expired GB976940A (en) | 1961-11-27 | 1962-11-23 | Improvements in non-return valves for liquid pumps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB976940A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0076297A1 (en) * | 1981-04-17 | 1983-04-13 | Lászlo IMRE | Back-pressure valve in particular for pipelines, for ensuring the one-way flow of the streaming medium |
GB2585765A (en) * | 2019-07-12 | 2021-01-20 | Hagepe Int B V | Check valve |
-
1962
- 1962-11-23 GB GB4436362A patent/GB976940A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0076297A1 (en) * | 1981-04-17 | 1983-04-13 | Lászlo IMRE | Back-pressure valve in particular for pipelines, for ensuring the one-way flow of the streaming medium |
EP0076297A4 (en) * | 1981-04-17 | 1983-08-09 | Laszlo Imre | Back-pressure valve in particular for pipelines, for ensuring the one-way flow of the streaming medium. |
GB2585765A (en) * | 2019-07-12 | 2021-01-20 | Hagepe Int B V | Check valve |
GB2585765B (en) * | 2019-07-12 | 2022-01-05 | Hagepe Int B V | Check valve |
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