PH12767A - A cut-off device for the insertion in a gas duct - Google Patents

A cut-off device for the insertion in a gas duct

Info

Publication number
PH12767A
PH12767A PH19873A PH19873A PH12767A PH 12767 A PH12767 A PH 12767A PH 19873 A PH19873 A PH 19873A PH 19873 A PH19873 A PH 19873A PH 12767 A PH12767 A PH 12767A
Authority
PH
Philippines
Prior art keywords
cut
gas duct
duct
gas
Prior art date
Application number
PH19873A
Inventor
Chan Kwan Shiu
Leung Wing Kwong
Original Assignee
Chan Kwan Shiu
Leung Wing Kwong
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 Chan Kwan Shiu, Leung Wing Kwong filed Critical Chan Kwan Shiu
Publication of PH12767A publication Critical patent/PH12767A/en

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
    • F16K17/20—Excess-flow valves
    • F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
    • F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
    • F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
    • F16K17/285—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only the cutting-off member being a ball
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
    • F16K5/0407—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electron Tubes For Measurement (AREA)
  • Sampling And Sample Adjustment (AREA)
PH19873A 1977-01-11 1977-06-15 A cut-off device for the insertion in a gas duct PH12767A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB89577A GB1534672A (en) 1977-01-11 1977-01-11 Flow cut-off device for insertion in a gas duct

Publications (1)

Publication Number Publication Date
PH12767A true PH12767A (en) 1979-08-09

Family

ID=9712369

Family Applications (1)

Application Number Title Priority Date Filing Date
PH19873A PH12767A (en) 1977-01-11 1977-06-15 A cut-off device for the insertion in a gas duct

Country Status (4)

Country Link
GB (1) GB1534672A (en)
HK (1) HK69879A (en)
MY (1) MY8000009A (en)
PH (1) PH12767A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4257448A (en) * 1978-12-15 1981-03-24 Shiu Chan K Flow cut-off device for insertion in a gas duct
AU568958B2 (en) * 1984-02-02 1988-01-14 Sung, Show Yen Safety gas valve
EP0292486B1 (en) * 1986-01-24 1994-04-06 Premier-Fosters (Australia) Limited Automatic fluid flow shutoff device
CA1315175C (en) * 1988-08-19 1993-03-30 Geoffrey Frederick Foster Automatic fluid flow shut-off device
GB2247300A (en) * 1990-08-21 1992-02-26 Tsay Jaw Shiunn Gas regulator with safety device
GB2247735A (en) * 1990-09-04 1992-03-11 South Trust Enterprise Co Ltd Adjustable safety control valve far gas controller
FI121972B (en) * 2006-05-08 2011-06-30 Metso Automation Oy Control valve

Also Published As

Publication number Publication date
MY8000009A (en) 1980-12-31
GB1534672A (en) 1978-12-06
HK69879A (en) 1979-10-12

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