EP0678176A1 - Robinet papillon du type a bride intermediaire - Google Patents

Robinet papillon du type a bride intermediaire

Info

Publication number
EP0678176A1
EP0678176A1 EP92912161A EP92912161A EP0678176A1 EP 0678176 A1 EP0678176 A1 EP 0678176A1 EP 92912161 A EP92912161 A EP 92912161A EP 92912161 A EP92912161 A EP 92912161A EP 0678176 A1 EP0678176 A1 EP 0678176A1
Authority
EP
European Patent Office
Prior art keywords
valve
sealing sleeve
spindle
housing
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.)
Withdrawn
Application number
EP92912161A
Other languages
German (de)
English (en)
Inventor
Hakan Jeppson
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
Publication of EP0678176A1 publication Critical patent/EP0678176A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • F16K1/2265—Shaping or arrangements of the sealing the sealing being arranged on the valve seat with a channel- or U-shaped seal covering a central body portion

Definitions

  • the present invention relates to a butterfly valve of the type which is indicated in the introductory clause of claim 1.
  • Butterfly valves are a relatively simple valve type consisting of a valve housing with a straight through- passage and with an annular inner sealing sleeve for. cooperation with a turnable valve plate, which, by means of a spindle protruding out through a hole in the seal ⁇ ing sleeve and in the housing, may be rotated 90° be ⁇ tween a transverse closing position in which the rim of the circular valve plate engages the sealing sleeve, and a lengthwise oriented opening position, in which the flat valve plate only forms an insignificant constric ⁇ tion of the throughpassage.
  • Valves of this sort are widely used in pipe systems in various processing plants. They may be produced as relatively cheap units, which for further cost minimiz ⁇ ing may be arranged so as to be mountable by welding, such that the costly screwed connections may be dis ⁇ claimedd with.
  • the valves are difficult to remove for servicing.
  • intermediate flange valves in which the vital parts of the valve, viz. the valve plate, the sealing sleeve, and a surrounding housing portion, are fixed as an independent unit between opposite valve end members which abut the concerned surrounding housing portion in a sealed manner and are provided with outer, respective connecting stubs which are suitable for welding connec ⁇ tion with the abutting conduct pipes.
  • valve end members may be clamped to the inter ⁇ mediate unit, which in a corresponding manner may be disengaged and pulled out in a radial plane for servic- ing, without the end members needing to be separated from the connected pipes, the serviced unit in a cor ⁇ responding manner being mountable by a purely transverse insertion movement.
  • the sealing sleeve around the valve plate may remain securely in place regardless of an occurring positive or negative pressure inside the valve.
  • the surrounding rigid intermediate flange housing in itself will ensure that the sealing sleeve may resist an inner overpressure, and the intermediate flange portions may- very well receive and fasten the outer side of the seal ⁇ ing sleeve in such a manner that this will also be an ⁇ chored against an occurring negative pressure in the conduct, normally by way of a thickened outer portion on the sealing sleeve being held in an undercut annular groove in the inner side of the valve housing.
  • valves are easy to clean on the inside, primarily by CIP-cleaning, and in this respect the conventional intermediate flange valves are not advantageous, among other reasons because of grooves occurring by the said axial sealings against the outer housing portions, in which grooves deposits may form during normal operation.
  • valves are known from US-A-3,341,170, in which the tubular sealing sleeve extends entirely through the valve housing, such that it may provide sealing towards the outer housing portions with its own ends, whereby the additional sealing rings and associated grooves at these portions may be avoided.
  • the inner side of the valve housing is embodied as a smooth surface, with no special holder means for the sealing sleeve, but in return this is made in a compli ⁇ cated manner, viz.
  • valve of the said kind which is of a simple design, and in which the sealing sleeve may be a simple and easily mountable part, even with the possibility of being heeled over the spindle, such that also in that respect the valve is suitable for being designed so as to satisfy high hy ⁇ gienic requirements.
  • valve housing may consist of a simple pipe portion, however slotted in a known manner for assembling around the valve plate, and the spindle thereof, and the housing needs no sort of special pro ⁇ filing for the required fastening of the sealing sleeve.
  • the said reinforcing rings may be placed after the mounting of the sealing sleeve in its final position between the valve plate and the valve housing, and even though the sealing ring per se is sufficiently soft, it will, however, hereby be reinforced sufficiently for resisting a certain friction at the insertion mounting between the outer or end housing members as well as to be operatively stabilized in a desired manner.
  • the reinforcing rings may be mounted in annular grooves in the end surfaces of the tubular sealing sleeve, whereby they will be entirely removed from the fluid conducting area, where the inner side of the seal ⁇ ing ring will still project entirely out to the outer housing members.
  • the reinforcing rings in the shape of rigid plastic rings are provided with the same inner diameter as the sealing sleeve and are in ⁇ serted in annular corner grooves in the ends of the sealing ring or pipe at the inner side thereof; it has been found that a plastic ring placed in this area by axial insertion is very suitable for forming an effi ⁇ cient and jointless sealing partly against the sealing sleeve and partly against the outer housing member, when the receiving groove in the sealing sleeve is suitably dimensioned.
  • sealing sleeve despite its final rigidity is easily deformable when being mounted on the valve plate, as the latter and its associated spindle may then be made in one piece, preferably with rounded mutual tran ⁇ sition areas, such that also hereby, the valve is easy to clean by CIP-cleaning.
  • Fig. 1 is a partially sectional side view of an intermediate flange valve of a known design
  • Fig. 2 is a correspond ⁇ ing side sectional view of a valve according to the invention
  • Fig. 3 is a corresponding sectional view of a modified valve according to the invention.
  • the known valve shown in Fig. 1 comprises opposed outer housing parts 2 which by means of bolts 4 are clamped around or against an interjacent flange housing 6, which in a diametral plane is slotted in two halves 8, profiled innermost for fastening a protruding profile portion 10 on an inner sealing sleeve 12, the outer end surfaces of the flange halves 8 being provided with annular grooves 14 for receiving respective sealing rings 16, which by the clamping of the outer housing parts 2 provide sealing against the plane inner sides of these portions.
  • the turnable valve plate is shown by 18, and it is indicated that the spindle 20 thereof is led out through a hole in the sealing sleeve 12 and further out through a corresponding hole in the flange housing 6, which hole is formed by semi-circular recesses in the two housing halves 8.
  • FIG. 2 A quite corresponding valve according to the inven ⁇ tion is shown in Fig. 2.
  • the intermediate housing portion 6 is reduced to a simple pipe flange or two abutting pipe flanges 8, respectively, underneath which the sealing sleeve 12 is placed as a self-supported ring or tube body, which entirely fills out the space under ⁇ neath the housing portion 6 and has an inner passage which is directly flush with the pipe passage in the outer housing parts 2.
  • annular groove 22 are provided, in which a me ⁇ tallic supporting ring 24 is laid in. These rings will stabilize the sealing sleeve against contraction in the event of an occurring negative pressure in the pipe system, and also against expansion by an occurring posi ⁇ tive pressure, but in the latter case also the outer flange housing 6 will have a stabilizing effect.
  • the sealing sleeve 12 In its free condition the sealing sleeve 12 is slightly wider than the flange housing 6, such that by the clamping of the outer housing parts 2 it will form a pressure sealing against these, and it will be seen that this sealing will be established also immediately next to the area designated by 26 at the respective transi ⁇ tions to the pipe passages in the outer housing parts 2, such that at these areas there will occur no groove formation.
  • the sealing sleeve 12 By the mounting of the sealing sleeve 12 around the valve plate 18, it is decisive that the sealing sleeve is deformable in order to insert it over the protruding spindle, but also this is possible as a matter of course in connection with the invention, when only the support- ing rings 24 are not inserted until this mounting has taken place.
  • Fig. 3 which shows a section through the di ⁇ ametral plane of the spindle
  • the modification has been made that the metallic supporting rings 24, cf. Fig. 2, have been replaced by inserted plastic rings 28 in re ⁇ Waits 22, which are open inwardly towards the pipe passage.
  • these rings 28 have a certain sealing effect against the the plane inner sides of*the outer housing parts 2, such that they may form a practically groove free sealing thereagainst, just as they will be particularly easy to mount in the sealing sleeve.
  • the valve housing 8 may be constituted by a simple, smooth pipe portion, which should merely be divided in two in a suitable manner for assembling around the valve plate and its spindle and opposite swivel.
  • the housing may be divided longitudinally or transversely, and the two portions may have suitable semi-circular recesses for assembling around the spindle and swivel.
  • the hous ⁇ ing may be fastened in a precisely centered position solely by the guiding effect of the bolts 4.

Landscapes

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

Abstract

Robinet papillon du type à bride intermédiaire, dans lequel un manchon d'étanchéité (12) pour le plateau rotatif (18) est monté dans la boîte de robinet entourante (8) sans y être fixé de manière particulière. En revanche, une bague de renforcement (22, 24 ou 28) est montée dans chacune des extrémités opposées du manchon (12) et logée dans une rainure de retenue de telle sorte que le manchon d'étanchéité (12) puisse être monté autour du plateau (18) en étant maintenu sur l'axe associé (20) du robinet, tout en étant stabilisé par les bagues de renforcement. Le robinet est largement en mesure de satisfaire aux exigences d'hygiène élevée.
EP92912161A 1991-06-12 1992-06-12 Robinet papillon du type a bride intermediaire Withdrawn EP0678176A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK111791A DK168237B1 (da) 1991-06-12 1991-06-12 Drejespjældventil af mellemflangetypen
DK1117/91 1991-06-12
PCT/DK1992/000185 WO1992022761A1 (fr) 1991-06-12 1992-06-12 Robinet papillon du type a bride intermediaire

Publications (1)

Publication Number Publication Date
EP0678176A1 true EP0678176A1 (fr) 1995-10-25

Family

ID=8101207

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92912161A Withdrawn EP0678176A1 (fr) 1991-06-12 1992-06-12 Robinet papillon du type a bride intermediaire

Country Status (4)

Country Link
EP (1) EP0678176A1 (fr)
AU (1) AU1985092A (fr)
DK (1) DK168237B1 (fr)
WO (1) WO1992022761A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016211116A1 (de) * 2016-06-22 2017-12-28 Krones Ag Flanschen-Bausatz und Armatur und Abfüllanlage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3341170A (en) * 1964-03-25 1967-09-12 Fmc Corp Valve
ES466092A1 (es) * 1977-04-01 1979-01-01 Asahi Organic Chem Ind Perfeccionamientos en los conjuntos de valvula de mariposa
CH631529A5 (en) * 1977-12-22 1982-08-13 Josef Nemetz Flap-type shut-off valve

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9222761A1 *

Also Published As

Publication number Publication date
AU1985092A (en) 1993-01-12
DK111791D0 (da) 1991-06-12
DK168237B1 (da) 1994-02-28
WO1992022761A1 (fr) 1992-12-23
DK111791A (da) 1992-12-13

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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17P Request for examination filed

Effective date: 19931221

AK Designated contracting states

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Designated state(s): DE ES FR GB IT NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19970102