GB836387A - Improvements in or relating to fluid control spring-loaded safety valves - Google Patents

Improvements in or relating to fluid control spring-loaded safety valves

Info

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
Application number
GB3603/58A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manning Maxwell and Moore Inc
Original Assignee
Manning Maxwell and Moore Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Manning Maxwell and Moore Inc filed Critical Manning Maxwell and Moore Inc
Publication of GB836387A publication Critical patent/GB836387A/en
Expired legal-status Critical Current

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

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.
GB3603/58A 1957-02-15 1958-02-04 Improvements in or relating to fluid control spring-loaded safety valves Expired GB836387A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (9)

* Cited by examiner, † Cited by third party
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
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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