GB894149A - Improvements in or relating to gate valves - Google Patents

Improvements in or relating to gate valves

Info

Publication number
GB894149A
GB894149A GB4144059A GB4144059A GB894149A GB 894149 A GB894149 A GB 894149A GB 4144059 A GB4144059 A GB 4144059A GB 4144059 A GB4144059 A GB 4144059A GB 894149 A GB894149 A GB 894149A
Authority
GB
United Kingdom
Prior art keywords
valve
ring
closure member
rings
sealing
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
GB4144059A
Inventor
Clifford Ernest Anderson
Louis Frederic Eckert
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.)
ACF Industries Inc
Original Assignee
ACF Industries 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 ACF Industries Inc filed Critical ACF Industries Inc
Priority to GB4144059A priority Critical patent/GB894149A/en
Publication of GB894149A publication Critical patent/GB894149A/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
    • F16K3/18—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 by movement of the closure members
    • F16K3/184—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 by movement of the closure members by means of cams
    • F16K3/186—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 by movement of the closure members by means of cams by means of cams of wedge from

Landscapes

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

Abstract

894,149. Valves. ACF INDUSTRIES Inc. Dec. 7, 1959, No. 41440/59. Class 135. An expanding gate valve 10 comprises recesses 16, 17 having loosely-mounted therein seat-rings 18, 19 each ring being provided with a resiliently deformable sealing member 36 which projects from the face of the ring so that upon closure of the valve the face of the ring does not contact the opposing wall of the recess. The valve closure member comprises two portions 22, 24 held together by a spring 30 so that, in operation, when the closure member is moved to the closed position shown, a projection 28 on the portion 24 abuts the valve casing and thereby causes the closure member to be expanded against the rings 18, 19 and thus compress the sealing-members 36. During the initial opening movement of the valve, as shown in Fig. 3, the pressure of the expanded closure member acting on the surface of the ring 19 is removed, thereby permitting the upstream fluid pressure to act upon that surface and so maintain a clearance in order to facilitate easy operation of the valve. In a modification, the surfaces of the rings 18, 19 in contact with the closure member are also provided with a sealing-ring. Specifications 309,711 and 702,570 are referred to.
GB4144059A 1959-12-07 1959-12-07 Improvements in or relating to gate valves Expired GB894149A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4144059A GB894149A (en) 1959-12-07 1959-12-07 Improvements in or relating to gate valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4144059A GB894149A (en) 1959-12-07 1959-12-07 Improvements in or relating to gate valves

Publications (1)

Publication Number Publication Date
GB894149A true GB894149A (en) 1962-04-18

Family

ID=10419693

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4144059A Expired GB894149A (en) 1959-12-07 1959-12-07 Improvements in or relating to gate valves

Country Status (1)

Country Link
GB (1) GB894149A (en)

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