FR2097319A5 - Reducing valve - with ptfe bushing for piston - Google Patents
Reducing valve - with ptfe bushing for pistonInfo
- Publication number
- FR2097319A5 FR2097319A5 FR7024517A FR7024517A FR2097319A5 FR 2097319 A5 FR2097319 A5 FR 2097319A5 FR 7024517 A FR7024517 A FR 7024517A FR 7024517 A FR7024517 A FR 7024517A FR 2097319 A5 FR2097319 A5 FR 2097319A5
- Authority
- FR
- France
- Prior art keywords
- pressure
- piston
- septum
- spring
- pref
- 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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/08—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage
- F16K17/085—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage with diaphragm
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The valve comprises a mobile septum sensitive to the downstream pressure, to which is attached a flap valve and a calibrated spring which opposes the effect of the pressure on the septum. The valve comprises a piston subjected on one face to the upstream pressure and on the other to the downstream pressure, and opposing the spring with a force proportional to the difference of pressure. The piston exerts a corrective effect on the spring calibration so that variations in the supply pressure do not affect the downstream pressure. The piston is pref. centred on the axis of the spring, of the septum and of the flap valve. It is pref. between the flap valve and the septum and slides in a hole drilled in a partition separating the high and low pressure chambers. The piston pref. slides in a low friction bushing e.g. of PTFE placed in the hole in the partition or its surface is covered with PTFE.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7024517A FR2097319A5 (en) | 1970-07-02 | 1970-07-02 | Reducing valve - with ptfe bushing for piston |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7024517A FR2097319A5 (en) | 1970-07-02 | 1970-07-02 | Reducing valve - with ptfe bushing for piston |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2097319A5 true FR2097319A5 (en) | 1972-03-03 |
Family
ID=9058160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7024517A Expired FR2097319A5 (en) | 1970-07-02 | 1970-07-02 | Reducing valve - with ptfe bushing for piston |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2097319A5 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103939624A (en) * | 2014-05-09 | 2014-07-23 | 杭州华惠阀门有限公司 | Reducing valve |
CN104896109A (en) * | 2015-05-29 | 2015-09-09 | 杭州华惠阀门有限公司 | Pressure reducing valve |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB713991A (en) * | 1951-04-10 | 1954-08-18 | Gratzmuller Jean Louis | Improvements in pressure regulating valves such as pressure reducing or safety valves |
DE1213188B (en) * | 1963-01-24 | 1966-03-24 | Hansa Metallwerke Ag | Pressure reducing valve |
DE1254421B (en) * | 1965-04-03 | 1967-11-16 | Armaturenwerk Mosbach Heinrich | Pressure reducing valve |
FR1504487A (en) * | 1966-05-16 | 1967-12-08 | Compteurs Comp D | Improvements to pressure reducing regulators |
-
1970
- 1970-07-02 FR FR7024517A patent/FR2097319A5/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB713991A (en) * | 1951-04-10 | 1954-08-18 | Gratzmuller Jean Louis | Improvements in pressure regulating valves such as pressure reducing or safety valves |
DE1213188B (en) * | 1963-01-24 | 1966-03-24 | Hansa Metallwerke Ag | Pressure reducing valve |
DE1254421B (en) * | 1965-04-03 | 1967-11-16 | Armaturenwerk Mosbach Heinrich | Pressure reducing valve |
FR1504487A (en) * | 1966-05-16 | 1967-12-08 | Compteurs Comp D | Improvements to pressure reducing regulators |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103939624A (en) * | 2014-05-09 | 2014-07-23 | 杭州华惠阀门有限公司 | Reducing valve |
CN104896109A (en) * | 2015-05-29 | 2015-09-09 | 杭州华惠阀门有限公司 | Pressure reducing valve |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |