IT1257258B - Valvola a farfalla. - Google Patents

Valvola a farfalla.

Info

Publication number
IT1257258B
IT1257258B ITTO920574A ITTO920574A IT1257258B IT 1257258 B IT1257258 B IT 1257258B IT TO920574 A ITTO920574 A IT TO920574A IT TO920574 A ITTO920574 A IT TO920574A IT 1257258 B IT1257258 B IT 1257258B
Authority
IT
Italy
Prior art keywords
valve
disc
stop
seat
valve body
Prior art date
Application number
ITTO920574A
Other languages
English (en)
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
Priority claimed from ES9200462U external-priority patent/ES1020203Y/es
Priority claimed from ES9200464U external-priority patent/ES1020205Y/es
Priority claimed from ES9200463U external-priority patent/ES1020204Y/es
Application filed filed Critical
Publication of ITTO920574A0 publication Critical patent/ITTO920574A0/it
Publication of ITTO920574A1 publication Critical patent/ITTO920574A1/it
Application granted granted Critical
Publication of IT1257258B publication Critical patent/IT1257258B/it

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
    • F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
    • F16K1/2266—Shaping or arrangements of the sealing the sealing being arranged on the valve seat and being forced into sealing contact with the valve member by a spring or a spring-like member
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F16K27/0218—Butterfly valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Abstract

Valvola comprendente un corpo di valvola, un elemento valvolare disposto in modo da girare entro il corpo e muoversi tra una posizione di chiusura e una posizione di apertura e mezzi per evitare il movimento dell'elemento valvolare oltre la posizione completamente aperta. Sono previsti un arresto nel corpo della valvola ed un arresto sull'elemento valvolare comprendenti ciascuno due facce d'arresto. La valvola è dotata di un collegamento tra due suoi elementi, uno dei quali attraversa l'altro, collegabili con, l'introduzione di una chiavetta.Una sede di valvola comprende un elemento metallico ed un elemento di materiale plastico sintetico a contatto lungo una posizione della sua superficie esterna. L'elemento metallico possiede una flangia che permette di unirlo al corpo od al disco della valvola, una convoluzione per maggiore flessibilità, una cuspide di sede per la chiusura ermetica con il disco o con il corpo della valvola, ed una cuspide per l'appoggio della sede nel corpo o sul disco della valvola in determinate condizioni di carico del disco. Fig.3
ITTO920574A 1992-02-14 1992-07-08 Valvola a farfalla. IT1257258B (it)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES9200462U ES1020203Y (es) 1992-02-14 1992-02-14 Conexion entre elementos de una valvula de mariposa.
ES9200464U ES1020205Y (es) 1992-02-14 1992-02-14 Valvula de mariposa.
ES9200463U ES1020204Y (es) 1992-02-14 1992-02-14 Asiento para valvula de mariposa.

Publications (3)

Publication Number Publication Date
ITTO920574A0 ITTO920574A0 (it) 1992-07-08
ITTO920574A1 ITTO920574A1 (it) 1994-01-08
IT1257258B true IT1257258B (it) 1996-01-10

Family

ID=27240474

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO920574A IT1257258B (it) 1992-02-14 1992-07-08 Valvola a farfalla.

Country Status (8)

Country Link
JP (1) JPH05240359A (it)
BE (1) BE1005640A6 (it)
CA (1) CA2078281A1 (it)
DE (1) DE4220455A1 (it)
FR (1) FR2687444A1 (it)
IT (1) IT1257258B (it)
NL (1) NL9201099A (it)
PT (1) PT8610U (it)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH293762A (de) * 1951-08-03 1953-10-15 Frei Karl Drosselvorrichtung an einer Flüssigkeitsleitung.
GB2209580B (en) * 1987-09-05 1992-03-04 Hattersley Heaton Ltd A butterfly valve
GB2209578B (en) * 1987-09-05 1991-08-14 Hattersley Heaton Ltd A connection
GB8819741D0 (en) * 1988-08-19 1988-09-21 Hattersley Heaton Ltd Seat for butterfly valve

Also Published As

Publication number Publication date
ITTO920574A0 (it) 1992-07-08
JPH05240359A (ja) 1993-09-17
DE4220455A1 (de) 1993-08-19
PT8610T (pt) 1993-08-31
ITTO920574A1 (it) 1994-01-08
BE1005640A6 (fr) 1993-11-30
NL9201099A (nl) 1993-09-01
FR2687444A1 (fr) 1993-08-20
CA2078281A1 (en) 1993-08-15
PT8610U (pt) 1995-12-29

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970529