GB850297A - Improvements in plug valves - Google Patents

Improvements in plug valves

Info

Publication number
GB850297A
GB850297A GB3001457A GB3001457A GB850297A GB 850297 A GB850297 A GB 850297A GB 3001457 A GB3001457 A GB 3001457A GB 3001457 A GB3001457 A GB 3001457A GB 850297 A GB850297 A GB 850297A
Authority
GB
United Kingdom
Prior art keywords
plug
valve
space
spaces
transmitted
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
GB3001457A
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 GB3001457A priority Critical patent/GB850297A/en
Publication of GB850297A publication Critical patent/GB850297A/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
    • 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
    • F16K5/08—Details
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/16—Special arrangements for separating the sealing faces or for pressing them together for plugs with conical surfaces
    • F16K5/168—Sealing effected by the flowing medium
    • 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
    • F16K5/08—Details
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/16—Special arrangements for separating the sealing faces or for pressing them together for plugs with conical surfaces
    • F16K5/162—Special arrangements for separating the sealing faces or for pressing them together for plugs with conical surfaces with the plugs or parts of the plugs mechanically pressing the seal against the housing
    • 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
    • F16K5/08—Details
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/16—Special arrangements for separating the sealing faces or for pressing them together for plugs with conical surfaces
    • F16K5/162—Special arrangements for separating the sealing faces or for pressing them together for plugs with conical surfaces with the plugs or parts of the plugs mechanically pressing the seal against the housing
    • F16K5/166—Means pressing on the large diameter

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

850,297. Valves. SEAMARK, L. M. C. July 28, 1958 [Sept. 24, 1957], No. 30014/57. Class 135. In a plug valve 2, Fig. 1, the plug 1 is balanced in its closed position by providing in the valve body, means whereby the pressure on each side of the plug is transmitted to the other side. An inclined passage 7 in the valve body extends from the port at the right side of the plug to one end of an arcuate horizontal channel 8, Fig. 3, the other end of which projects upwards into an arcuate space 9, Fig. 1, opening on to the plug 1. The space 9 which is below the adjacent fluid port is connected by a channel (not shown) to a similar space 11 above the said fluid port. The fluid pressure on the left side of the plug is transmitted by a similar system of passage 7<1>, 81 to spaces 9<1>, 11<1> on the right side of the plug. The valve is thus operable to control the fluid flow in either direction. The passages and spaces may be filled with grease or oil which acts as a transmitting medium for the pressures and as a lubricant for the valve plug. The plug which has an operating member 6 is vertically adjustable by means of a screw-threaded member 12 in the base-plate 3. In a modification the base-plate 3 is replaced by another operating member and a dished spring washer is provided for urging the plug upwardly. The plug may be cylindrical in form.
GB3001457A 1957-09-24 1957-09-24 Improvements in plug valves Expired GB850297A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3001457A GB850297A (en) 1957-09-24 1957-09-24 Improvements in plug valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3001457A GB850297A (en) 1957-09-24 1957-09-24 Improvements in plug valves

Publications (1)

Publication Number Publication Date
GB850297A true GB850297A (en) 1960-10-05

Family

ID=10300876

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3001457A Expired GB850297A (en) 1957-09-24 1957-09-24 Improvements in plug valves

Country Status (1)

Country Link
GB (1) GB850297A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5312086A (en) * 1992-04-07 1994-05-17 Btr Plc Tapered plug valve
US6182696B1 (en) 1998-10-27 2001-02-06 Nordstrom Valves, Inc. Dual isolation valve with rectangular flow passageways
US6296016B1 (en) 1997-11-12 2001-10-02 Btr Plc Double obturator valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5312086A (en) * 1992-04-07 1994-05-17 Btr Plc Tapered plug valve
US6296016B1 (en) 1997-11-12 2001-10-02 Btr Plc Double obturator valve
US6182696B1 (en) 1998-10-27 2001-02-06 Nordstrom Valves, Inc. Dual isolation valve with rectangular flow passageways

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