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GB751393A - Improvements in or relating to safety valves - Google Patents

Improvements in or relating to safety valves

Info

Publication number
GB751393A
GB751393A GB776854A GB776854A GB751393A GB 751393 A GB751393 A GB 751393A GB 776854 A GB776854 A GB 776854A GB 776854 A GB776854 A GB 776854A GB 751393 A GB751393 A GB 751393A
Authority
GB
United Kingdom
Prior art keywords
chamber
closure member
valve
steam
seat
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
GB776854A
Inventor
Noboru Hagihara
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB776854A priority Critical patent/GB751393A/en
Publication of GB751393A publication Critical patent/GB751393A/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
    • F16K17/08—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
    • F16K17/082—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 piston
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Abstract

751,393. Fluid-actuated valves. OHTA, T. March 17, 1954, No. 7768/54. Class 135. A safety valve comprises a cup-shaped closure member b sliding in a guide cylinder c and co-operating with a seat r. After the valve has cracked open, steam escaping to the exhaust port 12 enters an annular grooves in the seat and the space a between the member b and cylinder c and gives additional lift to the closure member. Steam also seeps through the clearance between the closure member and the guide cylinder and passes into a chamber i at the back of the closure member, and it exhausts from chamber i past an adjustable throttle k. On its way into chamber i, the seepage steam acts on a loose sleeve o and raises it quickly so that it contacts an outturned flange p on the upper end of the closure member and provides a further lifting impulse to the member b. Projections y depending from the cover of chamber i limit the lift of member b. The stem of the valve passes through the cover of chamber i and there carries the valve loading spring 3.
GB776854A 1954-03-17 1954-03-17 Improvements in or relating to safety valves Expired GB751393A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB776854A GB751393A (en) 1954-03-17 1954-03-17 Improvements in or relating to safety valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB776854A GB751393A (en) 1954-03-17 1954-03-17 Improvements in or relating to safety valves

Publications (1)

Publication Number Publication Date
GB751393A true GB751393A (en) 1956-06-27

Family

ID=9839350

Family Applications (1)

Application Number Title Priority Date Filing Date
GB776854A Expired GB751393A (en) 1954-03-17 1954-03-17 Improvements in or relating to safety valves

Country Status (1)

Country Link
GB (1) GB751393A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017129528A1 (en) * 2016-01-25 2017-08-03 Luxembourg Patent Company S.A. High pressure valve with telescopic piston
WO2020037017A1 (en) * 2018-08-17 2020-02-20 Emerson Vulcan Holding Llc Valve discs for use with fluid valves
CN112361042A (en) * 2020-10-30 2021-02-12 李祖宇 Intelligent fire-fighting pressure-relief explosion-proof safety valve

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017129528A1 (en) * 2016-01-25 2017-08-03 Luxembourg Patent Company S.A. High pressure valve with telescopic piston
LU92958B1 (en) * 2016-01-25 2017-08-07 Luxembourg Patent Co High pressure valve with telescopic piston
CN108496035A (en) * 2016-01-25 2018-09-04 卢森堡专利公司 High pressure valve with telescopic piston
US10578223B2 (en) 2016-01-25 2020-03-03 Luxembourg Patent Company S.A. High pressure valve with telescopic piston
CN108496035B (en) * 2016-01-25 2020-05-22 卢森堡专利公司 High pressure valve with telescopic piston
RU2723003C2 (en) * 2016-01-25 2020-06-08 Люксембург Патент Компани С.А. High-pressure valve with telescopic piston
WO2020037017A1 (en) * 2018-08-17 2020-02-20 Emerson Vulcan Holding Llc Valve discs for use with fluid valves
CN112585386A (en) * 2018-08-17 2021-03-30 艾默生伏尔甘控股有限公司 Valve disc for use with fluid valve
US10962125B2 (en) 2018-08-17 2021-03-30 Emerson Vulcan Holding Llc Valve discs for use with fluid valves
CN112361042A (en) * 2020-10-30 2021-02-12 李祖宇 Intelligent fire-fighting pressure-relief explosion-proof safety valve
CN112361042B (en) * 2020-10-30 2023-09-12 浙江鸿新阀门有限公司 Intelligent fire control pressure release explosion-proof relief valve

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