GB1144584A - Fluid pressure operated valve assembly - Google Patents
Fluid pressure operated valve assemblyInfo
- Publication number
- GB1144584A GB1144584A GB26474/66A GB2647466A GB1144584A GB 1144584 A GB1144584 A GB 1144584A GB 26474/66 A GB26474/66 A GB 26474/66A GB 2647466 A GB2647466 A GB 2647466A GB 1144584 A GB1144584 A GB 1144584A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- pilot valve
- piston
- chamber
- sleeve
- 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
- 239000012530 fluid Substances 0.000 title abstract 4
- 239000003129 oil well Substances 0.000 abstract 1
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
- F16K17/10—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 auxiliary valve for fluid operation of the main valve
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/363—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a piston
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Safety Valves (AREA)
Abstract
1,144,584. Valves. WILLIS OIL TOOL CO. 14 June, 1966 [5 April, 1966], No. 26474/66. Heading F2V. [Also in Division G3] A pilot-operated valve suitable for controlling the output of an oil well is adapted to close in response to predetermined high or low pressures at its downstream side. As shown, the valve has an inlet 13, outlet 16, main closure member MV integral with a piston 21 working in a cylinder 20, and a pilot valve PV controlling communication between the space above piston 21 and pilot chamber 33, the latter communicating with the valve inlet via passages 40-42 and 44. Outlet pressure acts via passage 118 on one side of a piston (117, Fig. 4, not shown) working in a cylinder (116), the piston serving to transmit the outlet pressure to a chamber 82 (Fig. 2b) via a fluid link in a line 82a. Fluid pressure in chamber 82 acts on opposed pistons 83, 86 which contact respective spring-loaded sleeves 66, 98 having lost motion connections with the pilot valve stem 60. The pilot valve is pressurebalanced in its closed position and if the outlet pressure falls below a predetermined value, spring 68 moves sleeve 66 upwardly to unseat the pilot valve to close the main valve. After its initial unseating, the pilot valve is no longer pressure balanced and is urged rapidly upwardly to abut a guide 35. The sleeve 66 continues its upward movement until it abuts a surface 81 of housing 77. If, on the other hand, the outlet pressure rises above a predetermined value, piston 86 moves upwardly against spring 93 to cause sleeve 98 to engage stem 60 to unseat the pilot valve. As before, after the pilot valve is initially unseated it is urged rapidly upwardly by pressure in chamber 33 to abut guide 35, and the sleeve 98 continues its upward movement until it abuts a flange 101. To reset the valve, valves 130 and 131 are respectively closed and opened. The pilot valve may be opened manually by rotating a cap 105 having a threaded connection with a stationary plug 102. In Fig. 6, not shown, sleeve 98 &c. is removed so that the valve will only close in response to a predetermined low pressure. In Fig. 7, not shown, the outlet pressure is sensed downstream of a choke and is transmitted to chamber 82 either directly or via the fluid link comprising piston (117) and line 82a.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US54035566A | 1966-04-05 | 1966-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1144584A true GB1144584A (en) | 1969-03-05 |
Family
ID=24155097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26474/66A Expired GB1144584A (en) | 1966-04-05 | 1966-06-14 | Fluid pressure operated valve assembly |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1299965B (en) |
| FR (1) | FR1500437A (en) |
| GB (1) | GB1144584A (en) |
| NL (1) | NL6608387A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2224587A (en) * | 1988-09-15 | 1990-05-09 | Cyril Coleman | Oil supply shut-off valve |
| CN113389933A (en) * | 2021-07-29 | 2021-09-14 | 四川长仪油气集输设备股份有限公司 | Multifunctional pilot operated safety valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1103098B (en) * | 1959-09-25 | 1961-03-23 | Ludwig Rexroth | Multipurpose control valve |
| US3092136A (en) * | 1959-11-23 | 1963-06-04 | Robert S Willis | Fluid pressure operated shut-off valve |
-
1966
- 1966-06-10 DE DEW41773A patent/DE1299965B/en not_active Withdrawn
- 1966-06-14 GB GB26474/66A patent/GB1144584A/en not_active Expired
- 1966-06-16 NL NL6608387A patent/NL6608387A/xx unknown
- 1966-10-07 FR FR79219A patent/FR1500437A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2224587A (en) * | 1988-09-15 | 1990-05-09 | Cyril Coleman | Oil supply shut-off valve |
| CN113389933A (en) * | 2021-07-29 | 2021-09-14 | 四川长仪油气集输设备股份有限公司 | Multifunctional pilot operated safety valve |
| CN113389933B (en) * | 2021-07-29 | 2022-08-09 | 四川长仪油气集输设备股份有限公司 | Multifunctional pilot operated safety valve |
Also Published As
| Publication number | Publication date |
|---|---|
| NL6608387A (en) | 1967-10-06 |
| FR1500437A (en) | 1967-11-03 |
| DE1299965B (en) | 1969-07-24 |
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