GB1534672A - Flow cut-off device for insertion in a gas duct - Google Patents

Flow cut-off device for insertion in a gas duct

Info

Publication number
GB1534672A
GB1534672A GB89577A GB89577A GB1534672A GB 1534672 A GB1534672 A GB 1534672A GB 89577 A GB89577 A GB 89577A GB 89577 A GB89577 A GB 89577A GB 1534672 A GB1534672 A GB 1534672A
Authority
GB
United Kingdom
Prior art keywords
flow
cut
gas duct
wing
ports
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
GB89577A
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.)
WING KEE ENTERPRISES CO
Original Assignee
WING KEE ENTERPRISES CO
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 WING KEE ENTERPRISES CO filed Critical WING KEE ENTERPRISES CO
Priority to GB89577A priority Critical patent/GB1534672A/en
Priority to PH19873A priority patent/PH12767A/en
Publication of GB1534672A publication Critical patent/GB1534672A/en
Priority to HK69879A priority patent/HK69879A/en
Priority to MY8000009A priority patent/MY8000009A/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
    • F16K17/20—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)

Abstract

1534672 Valves CHAN KWAN SHIU & LEUNG WING KWONG [Trading as WING KEE ENTERPRISES CO] 11 Jan 1977 00895/77 Heading F2V In a flow cut-off device for a gas duct, the flow normally passes from inlet 1 and through ports H1, H2 to outlet 2. However, if the downstream pipeline should rupture, the larger mass flow will create a pressure build-up in chamber 3 and this will lift a ball J up against seating G to cut off the flow. Plunger A is used to force the ball away from the seating when the fault has been remedied. Alignment of different sets of the ports H1, H2 can be achieved by rotationally adjusting regulator D, to vary the flow cross-section through the device.
GB89577A 1977-01-11 1977-01-11 Flow cut-off device for insertion in a gas duct Expired GB1534672A (en)

Priority Applications (4)

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
PH19873A PH12767A (en) 1977-01-11 1977-06-15 A cut-off device for the insertion in a gas duct
HK69879A HK69879A (en) 1977-01-11 1979-10-04 A flow cut-off device for insertion in a gas duct
MY8000009A MY8000009A (en) 1977-01-11 1980-12-31 A flow-cut-off device for insertion in a gas duct

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
GB1534672A true GB1534672A (en) 1978-12-06

Family

ID=9712369

Family Applications (1)

Application Number Title Priority Date Filing Date
GB89577A Expired GB1534672A (en) 1977-01-11 1977-01-11 Flow cut-off device for 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)

Cited By (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
DE3537413A1 (en) * 1984-02-02 1987-04-23 Fang Reuy Feng Safety gas flow controller
WO1987004504A1 (en) * 1986-01-24 1987-07-30 Premier-Fosters (Australia) Limited Automatic fluid flow shutoff device
WO1990002281A1 (en) * 1988-08-19 1990-03-08 Premier-Fosters (Australia) Limited 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
WO2007128880A1 (en) * 2006-05-08 2007-11-15 Metso Automation Oy Control valve

Cited By (12)

* 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
DE3537413A1 (en) * 1984-02-02 1987-04-23 Fang Reuy Feng Safety gas flow controller
WO1987004504A1 (en) * 1986-01-24 1987-07-30 Premier-Fosters (Australia) Limited Automatic fluid flow shutoff device
US4921008A (en) * 1986-01-24 1990-05-01 Premier-Fosters (Australia) Limited Automatic fluid flow shutoff device
WO1990002281A1 (en) * 1988-08-19 1990-03-08 Premier-Fosters (Australia) Limited 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
WO2007128880A1 (en) * 2006-05-08 2007-11-15 Metso Automation Oy Control valve
EP2016316A1 (en) * 2006-05-08 2009-01-21 Metso Automation Oy Control valve
CN101438086B (en) * 2006-05-08 2011-08-03 美卓自动化有限公司 Control valve
US8146884B2 (en) 2006-05-08 2012-04-03 Metso Automation Oy High pressure control valve that allows for multiple pressure drops
EP2016316A4 (en) * 2006-05-08 2013-03-27 Metso Automation Oy Control valve

Also Published As

Publication number Publication date
PH12767A (en) 1979-08-09
MY8000009A (en) 1980-12-31
HK69879A (en) 1979-10-12

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee