GB1263391A - Improvements in or relating to fluid-flow control valves - Google Patents

Improvements in or relating to fluid-flow control valves

Info

Publication number
GB1263391A
GB1263391A GB1776669A GB1776669A GB1263391A GB 1263391 A GB1263391 A GB 1263391A GB 1776669 A GB1776669 A GB 1776669A GB 1776669 A GB1776669 A GB 1776669A GB 1263391 A GB1263391 A GB 1263391A
Authority
GB
United Kingdom
Prior art keywords
gate
april
motion
valve stem
relating
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
GB1776669A
Inventor
Gordon Milford Cave
Charles Mcbain
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.)
COPLASTIX Ltd
Original Assignee
COPLASTIX Ltd
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 COPLASTIX Ltd filed Critical COPLASTIX Ltd
Publication of GB1263391A publication Critical patent/GB1263391A/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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Devices (AREA)
  • Sliding Valves (AREA)

Abstract

1,263,391. Gate valves. COPLASTIX Ltd. 6 April, 1970 [7 Jan., 1969; 8 April, 1969], Nos. 913/69 and 17766/69. Heading F2V. A sealing member 36 is carried in a continuous groove adjacent the periphery of a gate and is inflated to cause a sealing portion 44 to abut a continuous surface in a channel-shaped frame 22 when the gate reaches a closed position and closed tube 48 is squashed between the base of the frame and the bottom of the gate. The sealing portion is contained wholly within the groove (as shown) during movement between open and closed positions. The gate is moved by a handwheel (32) and a threaded valve stem (30). In a modification there is lost-motion between the gate and valve stem and this motion is used to actuate a piston-cylinder on the gate to inflate the sealing member. A gravity-operated bolt preventing piston movement is released on the gate reaching closed position.
GB1776669A 1969-01-07 1969-01-07 Improvements in or relating to fluid-flow control valves Expired GB1263391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB91369 1969-01-07

Publications (1)

Publication Number Publication Date
GB1263391A true GB1263391A (en) 1972-02-09

Family

ID=9712714

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1776669A Expired GB1263391A (en) 1969-01-07 1969-01-07 Improvements in or relating to fluid-flow control valves

Country Status (1)

Country Link
GB (1) GB1263391A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5797588A (en) * 1995-05-04 1998-08-25 B.N.W. Valve Manufacturing Closure gate
US20150345660A1 (en) * 2014-05-29 2015-12-03 Applied Materials, Inc. Methods and apparatus to reduce shock in a slit valve door
CN106704612A (en) * 2015-07-23 2017-05-24 德维阀门铸造（苏州）有限公司 Large-caliber two-way expansion gate valve
CN110529263A (en) * 2018-05-23 2019-12-03 卡特彼勒公司 Air cutoff valve
CN110906013A (en) * 2019-11-20 2020-03-24 章锡明 Compensation type sealing butterfly valve with sequential linkage opening and closing charging and pressure relief functions
CN112303262A (en) * 2020-11-09 2021-02-02 芜湖新兴铸管有限责任公司 Novel sealing form of gate valve
CN115094838A (en) * 2022-04-12 2022-09-23 苏州热工研究院有限公司 Device for preventing sundries from adhering to inlet sluice gate slot

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5797588A (en) * 1995-05-04 1998-08-25 B.N.W. Valve Manufacturing Closure gate
US20150345660A1 (en) * 2014-05-29 2015-12-03 Applied Materials, Inc. Methods and apparatus to reduce shock in a slit valve door
US9752703B2 (en) * 2014-05-29 2017-09-05 Applied Materials, Inc. Methods and apparatus to reduce shock in a slit valve door
CN106704612A (en) * 2015-07-23 2017-05-24 德维阀门铸造（苏州）有限公司 Large-caliber two-way expansion gate valve
CN110529263A (en) * 2018-05-23 2019-12-03 卡特彼勒公司 Air cutoff valve
CN110906013A (en) * 2019-11-20 2020-03-24 章锡明 Compensation type sealing butterfly valve with sequential linkage opening and closing charging and pressure relief functions
CN110906013B (en) * 2019-11-20 2023-08-08 台州市工宇阀门有限公司 Compensation type sealing butterfly valve with sequential linkage opening and closing functions and pressure relief functions
CN112303262A (en) * 2020-11-09 2021-02-02 芜湖新兴铸管有限责任公司 Novel sealing form of gate valve
CN115094838A (en) * 2022-04-12 2022-09-23 苏州热工研究院有限公司 Device for preventing sundries from adhering to inlet sluice gate slot
CN115094838B (en) * 2022-04-12 2023-10-03 苏州热工研究院有限公司 Device for preventing sundries in inlet sluice gate slot from adhering

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