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GB1428066A - Butterfly valve - Google Patents

Butterfly valve

Info

Publication number
GB1428066A
GB1428066A GB1317174A GB1317174A GB1428066A GB 1428066 A GB1428066 A GB 1428066A GB 1317174 A GB1317174 A GB 1317174A GB 1317174 A GB1317174 A GB 1317174A GB 1428066 A GB1428066 A GB 1428066A
Authority
GB
United Kingdom
Prior art keywords
sealing rings
discs
screen
gas
march
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
GB1317174A
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 GB1428066A publication Critical patent/GB1428066A/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

1428066 Valves FREDRIKSSTAD MEK VERSTAD AS 25 March 1974 [28 March 1973] 13171/74 Heading F2V A butterfly valve comprises a pair of parallel spaced valve discs 4 which, in the closed position as shown in Fig. 1, seat on sealing rings 2 while the space between the discs is connected to a conduit 14 so that a barrier medium can be introduced. The sealing rings, shown in greater detail in Fig. 2, are preferably of metal and welded or moulded to a flange 5 for fixing to the housing. Between the two sealing rings is a sleeve screen 8 held in grooves 16 in the sealing rings. The discs are loosely held in bosses 15 and are centred by the sealing rings on closure. The screen 8 may be gas-permeable to allow gas but not solids to pass to atmosphere when the valve is open. Alternatively gas may pass between the edges of the screen and the grooves 16 in which it is loosely held.
GB1317174A 1973-03-28 1974-03-25 Butterfly valve Expired GB1428066A (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
GB1428066A true GB1428066A (en) 1976-03-17

Family

ID=19878100

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1317174A Expired GB1428066A (en) 1973-03-28 1974-03-25 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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450355A1 (en) * 1979-02-28 1980-09-26 Nissan Motor INTERNAL COMBUSTION ENGINE THAT CAN OPERATE WITH A PART OF THE CYLINDERS
GB2307539A (en) * 1996-02-16 1997-05-28 Solent & Pratt Butterfly valves

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52114426U (en) * 1976-02-27 1977-08-31

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450355A1 (en) * 1979-02-28 1980-09-26 Nissan Motor INTERNAL COMBUSTION ENGINE THAT CAN OPERATE WITH A PART OF THE CYLINDERS
GB2307539A (en) * 1996-02-16 1997-05-28 Solent & Pratt Butterfly valves
GB2307539B (en) * 1996-02-16 1997-10-08 Solent & Pratt Butterfly valves
US6149130A (en) * 1996-02-16 2000-11-21 Solent & Pratt (Engineering) Limited Butterfly valves

Also Published As

Publication number Publication date
JPS5041123A (en) 1975-04-15
SE395757B (en) 1977-08-22
NO132998C (en) 1976-02-18
ES424665A1 (en) 1976-06-01
NO132998B (en) 1975-11-10

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Legal Events

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