GB669676A - Improvements in or relating to return and safety valves for liquids - Google Patents
Improvements in or relating to return and safety valves for liquidsInfo
- Publication number
- GB669676A GB669676A GB29329/49A GB2932949A GB669676A GB 669676 A GB669676 A GB 669676A GB 29329/49 A GB29329/49 A GB 29329/49A GB 2932949 A GB2932949 A GB 2932949A GB 669676 A GB669676 A GB 669676A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- valve
- line
- lines
- spring
- 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
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
669,676. Pressure-relief valves. AKTIEBOLAGETTELEPAR. Nov. 16, 1949 [Nov. 16, 1948], No. 29329/49. Class 135. A pressure-relieving device for a hydraulic system comprises a hollow, piston-type, valve 23 urged to the neutral position closing the passage interconnecting the two pressure lines 11, 12 by two opposing springs 14, 15, the spring 14 being housed in the valve, the skirt of which seals off the interior from the line 12 under all working conditions, and the other spring bearing on the opposite, exterior, face of the valve; and the valve is movable in either direction to relieve excess pressure in either line. The device can be applied to a pumping system wherein lines 11, 12 are connected, respectively, to the outlet and inlet lines of the pump. The springs abut at their inner ends against washers 18, 19 seating normally on a collar 25 on a screwed stem 17 by which the loading exerted by spring 14 can be varied. Passages 27 through the closure member ensure that the pressure in line 11 acts also on the underside of the closure member.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE669676X | 1948-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB669676A true GB669676A (en) | 1952-04-09 |
Family
ID=20314577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29329/49A Expired GB669676A (en) | 1948-11-16 | 1949-11-16 | Improvements in or relating to return and safety valves for liquids |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB669676A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1220217B (en) * | 1963-02-12 | 1966-06-30 | Licentia Gmbh | Double-acting safety and circulation valve |
| CN107725341A (en) * | 2017-11-29 | 2018-02-23 | 山东博世机械有限公司 | A kind of low energy consumption automatic steady die mould membrane pump |
-
1949
- 1949-11-16 GB GB29329/49A patent/GB669676A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1220217B (en) * | 1963-02-12 | 1966-06-30 | Licentia Gmbh | Double-acting safety and circulation valve |
| CN107725341A (en) * | 2017-11-29 | 2018-02-23 | 山东博世机械有限公司 | A kind of low energy consumption automatic steady die mould membrane pump |
| CN107725341B (en) * | 2017-11-29 | 2023-10-03 | 山东中聚电器有限公司 | Low-energy-consumption automatic pressure-stabilizing diaphragm pump |
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