GB836387A - Improvements in or relating to fluid control spring-loaded safety valves - Google Patents
Improvements in or relating to fluid control spring-loaded safety valvesInfo
- Publication number
- GB836387A GB836387A GB3603/58A GB360358A GB836387A GB 836387 A GB836387 A GB 836387A GB 3603/58 A GB3603/58 A GB 3603/58A GB 360358 A GB360358 A GB 360358A GB 836387 A GB836387 A GB 836387A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bonnet
- bellows
- spindle
- piston
- threaded
- 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
- F16K17/0433—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 vibration preventing means
-
- 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
- F16K17/087—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 bellows
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
836,387. Valves. MANNING, MAXWELL & MOORE Inc. Feb. 4, 1958 [Feb. 15, 1957], No. 3603/58. Class 135. In a fluid-pressure operated safety-valve comprising a seat 14, a closure member 16, a pressure-tight bonnet 22 housing an adjustable loading-spring 26, a spindle 24 connected at one end to the closure member, the other end extending into the bonnet 22, and sealing bellows B normally preventing the controlled fluid from entering the bonnet, means is provided to balance the downward force opposing the valve opening movement that would result from failure of the bellows. A threaded hole in the bonnet, which is normally closed by a plug 22a, may be connected to means, not shown, to determine whether the bellows is leak-proof. A balancing piston 37, which has a graphite packing-ring, has a downwardly-extending hollow segmental portion 39 of smaller diameter than the piston proper and embodying a radial slot in the bottom wall 40 through which the spindle 24 passes; the piston is normally supported by a stud 37a in the cylinder wall, the cylinder 34 having a threaded head 34c and being supported on the bonnet 22 and open to the bonnet interior by a clearance between the spindle 24 and a gland 28 by means of which latter the loading of spring 26 is adjusted. In a modification, the cap is threaded into a boss on the bonnet and the piston-rod has a swivel connection to a member threaded to the top of the spindle. In another modification, the piston 37 is replaced by a bellows the inner end of which is clamped between the cylinder base and a flange, both bolted to the bonnet. To ensure rapid opening when a number of valves discharge into a common header, the sealing bellows, and hence the balancing bellows, are made with a larger effective head area than that of the valve seat. The spindle passes through the bellows and is connected to the outer head thereof. In a further modification, the cylinder 34 is dispensed with and the inner bellows end is sealed to the gland.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US836387XA | 1957-02-15 | 1957-02-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB836387A true GB836387A (en) | 1960-06-01 |
Family
ID=22179701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3603/58A Expired GB836387A (en) | 1957-02-15 | 1958-02-04 | Improvements in or relating to fluid control spring-loaded safety valves |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB836387A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3742722A1 (en) * | 1987-12-17 | 1989-07-06 | Babcock Werke Ag | DIRECTLY ACTIVE SAFETY VALVE |
CN109611564A (en) * | 2019-01-14 | 2019-04-12 | 北京星际荣耀空间科技有限公司 | A kind of low flow resistance full-service fluid methane bacterial type valve |
WO2020176609A1 (en) * | 2019-02-27 | 2020-09-03 | Saudi Arabian Oil Company | Bonnet vent attachment |
US11002111B2 (en) | 2018-12-19 | 2021-05-11 | Saudi Arabian Oil Company | Hydrocarbon flowline corrosion inhibitor overpressure protection |
WO2021222790A1 (en) * | 2020-04-30 | 2021-11-04 | Emerson Automation Solutions Final Control US LP | Systems and methods for determining failure in a back pressure balanced relief valve |
CN113738921A (en) * | 2021-08-25 | 2021-12-03 | 浙江大学 | Safety valve structure and method for avoiding valve clack impact during opening and closing |
-
1958
- 1958-02-04 GB GB3603/58A patent/GB836387A/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3742722A1 (en) * | 1987-12-17 | 1989-07-06 | Babcock Werke Ag | DIRECTLY ACTIVE SAFETY VALVE |
US11002111B2 (en) | 2018-12-19 | 2021-05-11 | Saudi Arabian Oil Company | Hydrocarbon flowline corrosion inhibitor overpressure protection |
US11242730B2 (en) | 2018-12-19 | 2022-02-08 | Saudi Arabian Oil Company | Hydrocarbon flowline corrosion inhibitor overpressure protection |
US11585187B2 (en) | 2018-12-19 | 2023-02-21 | Saudi Arabian Oil Company | Hydrocarbon flowline corrosion inhibitor overpressure protection |
CN109611564A (en) * | 2019-01-14 | 2019-04-12 | 北京星际荣耀空间科技有限公司 | A kind of low flow resistance full-service fluid methane bacterial type valve |
WO2020176609A1 (en) * | 2019-02-27 | 2020-09-03 | Saudi Arabian Oil Company | Bonnet vent attachment |
US11098811B2 (en) | 2019-02-27 | 2021-08-24 | Saudi Arabian Oil Company | Bonnet vent attachment |
WO2021222790A1 (en) * | 2020-04-30 | 2021-11-04 | Emerson Automation Solutions Final Control US LP | Systems and methods for determining failure in a back pressure balanced relief valve |
US12000505B2 (en) | 2020-04-30 | 2024-06-04 | Emerson Automation Solutions Final Control US LP | Systems and methods for determining failure in a back pressure balanced relief valve |
CN113738921A (en) * | 2021-08-25 | 2021-12-03 | 浙江大学 | Safety valve structure and method for avoiding valve clack impact during opening and closing |
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