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DE680682C - Valve with two seals connected in series - Google Patents

Valve with two seals connected in series

Info

Publication number
DE680682C
DE680682C DEM135781D DEM0135781D DE680682C DE 680682 C DE680682 C DE 680682C DE M135781 D DEM135781 D DE M135781D DE M0135781 D DEM0135781 D DE M0135781D DE 680682 C DE680682 C DE 680682C
Authority
DE
Germany
Prior art keywords
valve
seals
seal
series
lateral play
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
DEM135781D
Other languages
German (de)
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 DEM135781D priority Critical patent/DE680682C/en
Application granted granted Critical
Publication of DE680682C publication Critical patent/DE680682C/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
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/46—Attachment of sealing rings
    • F16K1/465—Attachment of sealing rings to the valve seats
    • 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
    • F16K25/00—Details relating to contact between valve members and seats
    • F16K25/04—Arrangements for preventing erosion, not otherwise provided for

Landscapes

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

Description

Ventil mit zwei hintereinandergeschalteten Dichtungen Um die metallischen Dichtflächen bei Ventilen vor Beschädigungen durch mitgerissene und eingeklemmte Fremdkörper zu schütz, ist bereits vorgeschlagen worden, der Metalldichtung eine elastische Dichtung vorzuschalten. Bei diesen bekannten Dichtungen sind beide Dichtungen als vom Spindeldruck beeinflußte Preßdichtungen ausgebildet: Bei Preßdichtungen treten aber leicht bleibende Formveränderungen an den Dichtflächen auf, die mit der Zeit die Dichtflächen zerstören und das Dichthalten beeinträchtigen.Valve with two seals connected in series To the metallic Sealing surfaces on valves against damage from dragged along and trapped To protect foreign bodies, it has already been proposed that the metal gasket be a upstream elastic seal. In these known seals, both are seals designed as press seals influenced by the spindle pressure: For press seals but there are easily permanent changes in shape on the sealing surfaces with Destroy the sealing surfaces over time and impair the tightness.

Dieser Mangel ist erfindungsgemäß- dadurch beseitigt worden, daß die elastische Dichtung innerhalb einer festen Dichtung als Kammerabdichtung ausgebildet ist, wie sie bei Rohrleitungen bekannt ist (Patent 492923).This deficiency has been eliminated according to the invention in that the elastic seal formed within a solid seal as a chamber seal as it is known for pipelines (patent 492923).

Die Zeichnung zeigt beispielsweise ein Ventil mit einer Abdichtung nach der Erfindung.The drawing shows, for example, a valve with a seal according to the invention.

Am Ventilkörper sind sich keilförmig verjüngende Metalldichtfiächen am Ringvorsprung 17 und in der Ringrille i g angeordnet.There are wedge-shaped tapered metal sealing surfaces on the valve body arranged on the annular projection 17 and in the annular groove i g.

Auf dem Grunde der Ringrille 19 ist eine formveränderungsfähige Dichtung 14 in Form eines Schlauchabschnittes eingelassen bzw. befestigt, welche innerhalb der Ringrille i g hervorsteht. Eine irn Ringvorsprung 17 des Ventilkörpers @eingearbeitete trapezförrnige Ringrille 18 umfaßt beim Schließext des Ventils die Dichtung 14 und drückt sie mit ihren beiderseitigen Stirnflächen fest an, wobei die Dichtung in der Längsrichtung etwas angestaucht, also gewissermaßen tonnenförmig verformt wird, ohne die Anpressung -der Metalldichtfiächen zu behindern. Durch den trapezförmigen Querschnitt der Rille 18 kann die Verformung ungehindert erfolgen, so daß eine überbeanspruchung und damit bleibende Verformung der Dichtung 14 vermieden wird.At the bottom of the annular groove 1 9 a change in shape capable gasket 14 is recessed in the form of a tube section or fastened which protrude inside the annular groove ig. A trapezoidal ring groove 18 machined into the annular projection 17 of the valve body encompasses the seal 14 when the valve closes and presses it firmly on both sides, the seal being somewhat upset in the longitudinal direction, i.e. deformed in a barrel shape, as it were, without the pressure of the metal sealing surfaces to hinder. Due to the trapezoidal cross-section of the groove 18, the deformation can take place unhindered, so that overstressing and thus permanent deformation of the seal 14 is avoided.

Die Lebensdauer der Dichtungen ist erfindungsgemäß ferner dadurch verbessert worden, daß am Ventilkörper in an sich bekannter Weise ein Vorsprung 3 vorgesehen ist, der den Durchflußquerschnitt schon vor dem Ventilsdhluß stark verringert, daß bei Beginn der eigentlichen Abdichtung von den Dichtflächen wesentliche Strömungseinflüsse fern ehalten bleiben; das gleiche ist sinngemäß der Fall beim öffnen solcher Ventile. Der Vorsprung 3 kann so geformt sein, daß er nicht plötzlich, sondern ,allmählich den Durchfllußquerschnitt absperrt bzw. freigibt.The service life of the seals is also characterized according to the invention has been improved that a projection on the valve body in a manner known per se 3 is provided, which greatly increases the flow area before the valve nozzle reduces that essential at the beginning of the actual sealing of the sealing surfaces Stay away from the effects of flow; the same is analogously the case with open such valves. The projection 3 can be shaped so that it does not suddenly, but, gradually shuts off or releases the flow cross-section.

Claims (2)

PATENTANSPRÜCHL: i. Ventil mit zwei hinbereinandergeschalteten Dichtungen, von denen die ,eine als feste, die andere als elastische Dichtung ausgebildet ist, dadurch gekennzeichnet, daß die in berannter Weise als ein sich keilförmig verjüngender Ringvorsprung ausgebildete feste Dichtung den meiner Nut (ig) des Gegenkörpers unter Belassung seitlichen Spieles befestigten @elastischen Dichtungskörper (14) mit einer Ausnehmung (18) mit seitlichem Spiel umgreift. PATENT CLAIM: i. Valve with two consecutive seals, of which one is designed as a fixed seal, the other as an elastic seal, characterized in that the tapered in a wedge-shaped manner Ring projection formed fixed seal that of my groove (ig) of the counter body below Leaving lateral play attached @elastic sealing body (14) with a The recess (18) engages with lateral play. 2. Ventil nach Anspruch i, dadurch gekennzeichnet, daß der Ventilkörper (i) in an sich bekannter Weise mit einem vor Aufeinandertreffen der Dichtungen in die Durchfiußöffnung des Ventilsitzes eintretenden Vorsprung (3) ausgerüstet ist.2. Valve according to claim i, characterized characterized in that the valve body (i) in a known manner with a front Meeting of the seals entering the flow opening of the valve seat Projection (3) is equipped.
DEM135781D 1936-09-24 1936-09-24 Valve with two seals connected in series Expired DE680682C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM135781D DE680682C (en) 1936-09-24 1936-09-24 Valve with two seals connected in series

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM135781D DE680682C (en) 1936-09-24 1936-09-24 Valve with two seals connected in series

Publications (1)

Publication Number Publication Date
DE680682C true DE680682C (en) 1939-09-05

Family

ID=7333385

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM135781D Expired DE680682C (en) 1936-09-24 1936-09-24 Valve with two seals connected in series

Country Status (1)

Country Link
DE (1) DE680682C (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE946692C (en) * 1943-08-07 1956-08-02 Krautzberger & Co Valve for painting device operated with compressed air
DE1008075B (en) * 1954-02-13 1957-05-09 Neyrpic Ets Shut-off device with ring closure member for shut-off devices for fluid lines
DE1027029B (en) * 1953-11-25 1958-03-27 Roedinghausen Eisenwerk Sealing of non-rising valve spindles
DE1083094B (en) * 1953-08-22 1960-06-09 Gerdts Gustav F Kg Double seal valve
US4544132A (en) * 1983-02-28 1985-10-01 Sloan Valve Company Combination gladhand and shutoff valve
US7758020B2 (en) 2004-03-12 2010-07-20 Toyota Jidosha Kabushiki Kaisha Valve
JP2022502617A (en) * 2018-12-28 2022-01-11 浙江三花制冷集団有限公司 Flow control valve

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE946692C (en) * 1943-08-07 1956-08-02 Krautzberger & Co Valve for painting device operated with compressed air
DE1083094B (en) * 1953-08-22 1960-06-09 Gerdts Gustav F Kg Double seal valve
DE1027029B (en) * 1953-11-25 1958-03-27 Roedinghausen Eisenwerk Sealing of non-rising valve spindles
DE1008075B (en) * 1954-02-13 1957-05-09 Neyrpic Ets Shut-off device with ring closure member for shut-off devices for fluid lines
US4544132A (en) * 1983-02-28 1985-10-01 Sloan Valve Company Combination gladhand and shutoff valve
US7758020B2 (en) 2004-03-12 2010-07-20 Toyota Jidosha Kabushiki Kaisha Valve
DE112005000010B4 (en) 2004-03-12 2022-10-27 Toyota Jidosha Kabushiki Kaisha Valve
JP2022502617A (en) * 2018-12-28 2022-01-11 浙江三花制冷集団有限公司 Flow control valve
EP3904733A4 (en) * 2018-12-28 2022-09-07 Zhejiang Sanhua Climate & Appliance Controls Group Co., Ltd. FLOW CONTROL VALVE
JP7198351B2 (en) 2018-12-28 2022-12-28 浙江三花制冷集団有限公司 flow control valve

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