ES424665A1 - Butterfly valve - Google Patents

Butterfly valve

Info

Publication number
ES424665A1
ES424665A1 ES424665A ES424665A ES424665A1 ES 424665 A1 ES424665 A1 ES 424665A1 ES 424665 A ES424665 A ES 424665A ES 424665 A ES424665 A ES 424665A ES 424665 A1 ES424665 A1 ES 424665A1
Authority
ES
Spain
Prior art keywords
valve
discs
ring
disc
housing
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
ES424665A
Other languages
Spanish (es)
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.)
FREDRIKSSTAD MEK VERKSTED AS
Original Assignee
FREDRIKSSTAD MEK VERKSTED AS
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 FREDRIKSSTAD MEK VERKSTED AS filed Critical FREDRIKSSTAD MEK VERKSTED AS
Publication of ES424665A1 publication Critical patent/ES424665A1/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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/44—Details of seats or valve members of double-seat valves
    • F16K1/443—Details of seats or valve members of double-seat valves the seats being in series
    • F16K1/446—Details of seats or valve members of double-seat valves the seats being in series with additional cleaning or venting means between the two seats

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)

Abstract

Butterfly valve device for gas pipelines of the type having a double closure with two spaced valve discs mounted in parallel, arranged for rotation in the valve housing to open and close the valve, and shutter means providing closure when valve discs remain in the closed position, allowing the spacing between the valve discs communicating with the exterior of the valve housing to maintain a pressure in said spacing different from the pressures prevailing in the adjacent piping system on opposite sides of the discs valve, characterized in that said sealing means for each valve disc comprise a valve seat ring in the form of a tubular element made of a rigid, resistant, elastic material, preferably a corrosion-resistant metal, the ring of which is axially positioned to circumscribe the peripheral edge of the valve disc, one end of the ring rigidly fixed hermetically to the surrounding valve housing, the other end being configured to serve as a valve seat for the circumferential edge of said valve disc, each of said rings operating as centering means for each of the discs valve and also as sealing means for them. (Machine-translation by Google Translate, not legally binding)
ES424665A 1973-03-28 1974-03-26 Butterfly valve Expired ES424665A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO128473A NO132998C (en) 1973-03-28 1973-03-28

Publications (1)

Publication Number Publication Date
ES424665A1 true ES424665A1 (en) 1976-06-01

Family

ID=19878100

Family Applications (1)

Application Number Title Priority Date Filing Date
ES424665A Expired ES424665A1 (en) 1973-03-28 1974-03-26 Butterfly valve

Country Status (5)

Country Link
JP (1) JPS5041123A (en)
ES (1) ES424665A1 (en)
GB (1) GB1428066A (en)
NO (1) NO132998C (en)
SE (1) SE395757B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52114426U (en) * 1976-02-27 1977-08-31
JPS55114864A (en) * 1979-02-28 1980-09-04 Nissan Motor Co Ltd Fuel feed controller for multi-cylinder
GB2307539B (en) * 1996-02-16 1997-10-08 Solent & Pratt Butterfly valves

Also Published As

Publication number Publication date
JPS5041123A (en) 1975-04-15
SE395757B (en) 1977-08-22
NO132998B (en) 1975-11-10
NO132998C (en) 1976-02-18
GB1428066A (en) 1976-03-17

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