DE956005C - Valve plate with seal for low sealing pressures - Google Patents

Valve plate with seal for low sealing pressures

Info

Publication number
DE956005C
DE956005C DEC8225A DEC0008225A DE956005C DE 956005 C DE956005 C DE 956005C DE C8225 A DEC8225 A DE C8225A DE C0008225 A DEC0008225 A DE C0008225A DE 956005 C DE956005 C DE 956005C
Authority
DE
Germany
Prior art keywords
seal
valve seat
low sealing
valve plate
sealing pressures
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
DEC8225A
Other languages
German (de)
Inventor
Dipl-Ing Walter Hofmann
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.)
Concordia Masch & Elekt
Original Assignee
Concordia Masch & Elekt
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 Concordia Masch & Elekt filed Critical Concordia Masch & Elekt
Priority to DEC8225A priority Critical patent/DE956005C/en
Application granted granted Critical
Publication of DE956005C publication Critical patent/DE956005C/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

Landscapes

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

Description

Die Abdichtung zwischen Ventilteller und Ventilsitz bei Ventilen mit geringen Dichtungsdrücken wie beispielsweise elektromagnetischen Ventilen, bereitet große Schwierigkeiten.The seal between the valve disc and the valve seat in valves with low sealing pressures such as electromagnetic valves, presents great difficulties.

Verwendet man dem kleinen Dichtdruck entsprechend eine weiche Dichtung, so ist die Lebensdauer einer solchen recht gering. Der Erfindung liegt die Aufgabe zugrunde, trotz Verwendung eines festen und zähen Dichtmaterials eine anpassungsfähige, schmiegsame Dichtung zu erhalten, die auch bei geringem Dichtdruck einen gasdichten Abschluß herstellt.If a soft seal is used in accordance with the small sealing pressure, the service life is increased such a small one. The invention is based on the object, despite use a firm and tough sealing material to obtain an adaptable, pliable seal, which produces a gas-tight seal even with a low sealing pressure.

Die Erfindung macht dabei von den Konstruktionen Gebrauch, bei denen eine elastische weiche Unterlage durch eine Scheibe aus ebenfalls elastischem, aber dünnem und verhältnismäßig hartem und zähem Werkstoff abgedeckt wird. Bei diesen bekannten Konstruktionen wird die dünne Scheibe über ihre ganze Fläche von der weichen Scheibe abgestützt, die sie gleichmäßig auf eine ebene Sitzfläche andrückt. Bei der Dichtung gemäß der Erfindung wird das Anschmiegen der dünnen Scheibe an den Ventilsitz dadurch verbessert, daß die dicke Unterlagscheibe im Durchmesser kleiner gehalten wird als die dünne Scheibe und annähernd gleich dem Durchmesser der Ventilsitzbohrung, und weiter dadurch, daß der Ventilsitz im Profil abgerundet ist.The invention makes use of the constructions in which an elastic soft Support by a disk made of elastic, but thin and relatively hard and tough material is covered. In these known constructions, the thin disk Supported over its entire surface by the soft disc, which spreads it evenly onto a flat seat presses. In the case of the seal according to the invention, the clinging of the thin disk Improved on the valve seat in that the thick washer is kept smaller in diameter is called the thin disk and approximately equal to the diameter of the valve seat bore, and further in that the valve seat is rounded in profile.

Die Wirkung ist an Hand der Zeichnung dargestellt. Dadurch, daß die dünne Scheibe 1 sich ohne weiteres kegelig verformen kann, kann sie sich dem Ventilsitz 2 mit seinem abgerundeten Profil gut anpassen, und durch die Kegelwirkung ist der Dichtungsdruck größer als der reine Axialdruck. Der über den Ventilsitz und die dünne weiche Unterlage 3 vorstehende Rand der dünnen Scheibe flacht sich nach außen ab und schmiegt sich dadurch dem abgerundeten Ventilsitz weiter an. Die elastische Unterlage weicht beim Zusammendrücken etwas nach außen aus, dadurch werden die senkrecht nach oben wirkenden Scherkräfte aufgefangen, was die Lebensdauer der Dichtung verlängert. The effect is shown on the basis of the drawing. The fact that the thin disc 1 is can easily deform conically, it can affect the valve seat 2 with its rounded Adapt the profile well, and due to the cone effect, the sealing pressure is greater than the pure axial pressure. The over the valve seat and the thin soft pad 3 protruding edge of the thin The disc flattens outwards and thus continues to nestle against the rounded valve seat at. The elastic pad gives way to the outside when pressed together, which means that the Shear forces acting vertically upwards are absorbed, which extends the service life of the seal.

Claims (1)

PATENTANSPRUCH:PATENT CLAIM: Ventilteller mit Dichtung für geringe Dichtungsdrücke mit einer dünnen Scheibe aus elastischem, hartem und zähem Werkstoff auf einer dicken Unterlage aus elastischem, weichem Werkstoff, dadurch gekennzeichnet, daß die dünne Scheibe mit ihrem Rand über den Ventilsitz vorsteht, der im Profil abgerundet ist; während die dicke Scheibe im Durchmesser annähernd gleich der Ventilsitzbohrung ist.Valve disc with seal for low sealing pressures with a thin disk made of elastic, hard and tough material on a thick base made of elastic, soft material, characterized in that the thin disc protrudes with its edge over the valve seat, which is rounded in profile; while the diameter of the thick disk is approximately the same as that of the valve seat bore. In Betracht gezogene Druckschriften:
Deutsche Patentschriften Nr. 413 752, 690 379, 725719, 845133, 6Considered publications:
German patent specifications No. 413 752, 690 379, 725719, 845133, 6 Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEC8225A 1953-09-26 1953-09-26 Valve plate with seal for low sealing pressures Expired DE956005C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC8225A DE956005C (en) 1953-09-26 1953-09-26 Valve plate with seal for low sealing pressures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC8225A DE956005C (en) 1953-09-26 1953-09-26 Valve plate with seal for low sealing pressures

Publications (1)

Publication Number Publication Date
DE956005C true DE956005C (en) 1957-01-10

Family

ID=7014297

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC8225A Expired DE956005C (en) 1953-09-26 1953-09-26 Valve plate with seal for low sealing pressures

Country Status (1)

Country Link
DE (1) DE956005C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394732A (en) * 1965-04-26 1968-07-30 Protectoseal Co Valve seal
US4225111A (en) * 1976-11-03 1980-09-30 Corcordia Fluidtechnik Gmbh Solenoid valve

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE413752C (en) * 1923-02-17 1925-05-15 Hoechst Ag Valve seal
DE463343C (en) * 1930-07-03 Georg Julius Schmidt Valve with an elastic sealing washer on the valve body
DE690379C (en) * 1935-04-28 1940-04-24 Schaeffer & Budenberg G M B H Sealing for shut-off valves, gate valves or the like for high pressures and temperatures
DE725719C (en) * 1939-11-08 1942-09-28 Buschbeck & Hebenstreit Gate valve
DE845133C (en) * 1942-10-02 1952-07-28 Paul Dr Phil Rohr Shut-off device for pipes and containers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE463343C (en) * 1930-07-03 Georg Julius Schmidt Valve with an elastic sealing washer on the valve body
DE413752C (en) * 1923-02-17 1925-05-15 Hoechst Ag Valve seal
DE690379C (en) * 1935-04-28 1940-04-24 Schaeffer & Budenberg G M B H Sealing for shut-off valves, gate valves or the like for high pressures and temperatures
DE725719C (en) * 1939-11-08 1942-09-28 Buschbeck & Hebenstreit Gate valve
DE845133C (en) * 1942-10-02 1952-07-28 Paul Dr Phil Rohr Shut-off device for pipes and containers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394732A (en) * 1965-04-26 1968-07-30 Protectoseal Co Valve seal
US4225111A (en) * 1976-11-03 1980-09-30 Corcordia Fluidtechnik Gmbh Solenoid valve

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