DE10058530A1 - Ball valve has seal between ball and sliding sleeve with sloping surface fitting against ball, two seal systems fitted between sleeve and threaded connector, and valve spindle with primary seal, sealing ring and spring-biased sealing ring - Google Patents

Ball valve has seal between ball and sliding sleeve with sloping surface fitting against ball, two seal systems fitted between sleeve and threaded connector, and valve spindle with primary seal, sealing ring and spring-biased sealing ring

Info

Publication number
DE10058530A1
DE10058530A1 DE2000158530 DE10058530A DE10058530A1 DE 10058530 A1 DE10058530 A1 DE 10058530A1 DE 2000158530 DE2000158530 DE 2000158530 DE 10058530 A DE10058530 A DE 10058530A DE 10058530 A1 DE10058530 A1 DE 10058530A1
Authority
DE
Germany
Prior art keywords
seal
ball
sealing ring
ring
ball valve
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Withdrawn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
DE2000158530
Other languages
German (de)
Inventor
Christian Petrescu
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.)
MHA ZENTGRAF MERZIGER HOCHDRUC
Original Assignee
MHA ZENTGRAF MERZIGER HOCHDRUC
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 MHA ZENTGRAF MERZIGER HOCHDRUC filed Critical MHA ZENTGRAF MERZIGER HOCHDRUC
Priority to DE2000158530 priority Critical patent/DE10058530A1/en
Publication of DE10058530A1 publication Critical patent/DE10058530A1/en
Withdrawn legal-status Critical Current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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
    • F16K5/205—Sealing effected by the flowing medium
    • 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
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • 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
    • F16K41/00—Spindle sealings
    • F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
    • F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
    • F16K41/043—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing for spindles which only rotate, i.e. non-rising spindles
    • F16K41/046—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing for spindles which only rotate, i.e. non-rising spindles for rotating 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
    • F16K41/00—Spindle sealings
    • F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
    • F16K41/08—Spindle sealings with stuffing-box ; Sealing rings with at least one ring provided with axially-protruding peripheral closing-lip
    • F16K41/083—Spindle sealings with stuffing-box ; Sealing rings with at least one ring provided with axially-protruding peripheral closing-lip for spindles which only rotate, i.e. non-rising spindles
    • F16K41/086—Spindle sealings with stuffing-box ; Sealing rings with at least one ring provided with axially-protruding peripheral closing-lip for spindles which only rotate, i.e. non-rising spindles for rotating 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
    • F16K41/00—Spindle sealings
    • F16K41/14—Spindle sealings with conical flange on the spindle which co-operates with a conical surface in the housing
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0626—Easy mounting or dismounting means
    • F16K5/0642—Easy mounting or dismounting means the spherical plug being insertable from one and only one side of the housing
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0663—Packings
    • F16K5/0673—Composite packings
    • F16K5/0678—Composite packings in which only one of the components of the composite packing is contacting the plug
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
    • F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)

Abstract

The ball valve has a seal (11) between the ball and sliding sleeve (12) which has a sloping surface which fits against the ball. Two seal systems (13, 14, 15/16) are fitted between the sleeve and a threaded connector (22) and the valve spindle (3) has a primary seal (6/7), sealing ring (5) and spring-biased sealing ring (8). The diameter (daB)of the sealed section of the connector is less than its overall diameter (dG) and a metal insert (A) and seal (21) are positioned between it and the casing.

Description

Die Erfindung betrifft einen Kugelhahn mit einer in einem Gehäuse drehbar gelagerten Kugel, der in Durchflussrichtung Schiebehülsen zugeordnet sind, und zur Betätigung der Kugel eine Schaltwelle sowie eine das Gehäuse verschließende Verschraubung vorgesehen sind.The invention relates to a ball valve with a ball rotatably mounted in a housing, which are assigned sliding sleeves in the direction of flow, and one for actuating the ball Switching shaft and a screw fitting closing the housing are provided.

Kugelhähne sind in den unterschiedlichsten Ausführungen bekannt und werden für zahlreiche Zwecke eingesetzt, um den Durchfluss von Flüssigkeiten bzw. den Weg von Gasen zu regeln oder abzusperren. Die bekannten Kugelhähne haben u. a. die Nachteile, dass sie nicht für sehr hohe Drücke und sehr hohe Temperaturen geeignet sind, schon gar nicht für Aufgaben, bei denen sowohl hohe Drücke als auch hohe Temperaturen vorkommen.Ball valves are known in many different designs and are used for numerous Purpose used to regulate the flow of liquids or the path of gases or cordon off. The known ball valves have u. a. the cons that they are not for very high pressures and very high temperatures are suitable, especially not for tasks at which have both high pressures and high temperatures.

Der Erfindung liegt die Aufgabe zugrunde, einen Kugelhahn der eingangs näher angegebenen Art zu schaffen, der sowohl hinsichtlich hoher Drücke des durchgeleiteten Mediums als auch Feuersicherheit besonders günstige Eigenschaften besitzt.The invention has for its object a ball valve specified in the introduction Art to create, both in terms of high pressures of the medium passed through as well Fire safety has particularly favorable properties.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die an der Kugel anliegenden Dichtflächen der Dichtelemente schräg ausgebildet sind, dass die Schiebehülsen eine erste Abdichtung und eine zweite Abdichtung aufweisen, und dass die Schaltwelle zur Abdichtung eine Primärabdichtung, einen Dichtring und einen federbelasteten Dichtring aufweist, und dass bei der Verschraubung der Abdichtdurchmesser kleiner als der Gewindedurchmesser ist und dass zwischen der Verschraubung und dem Gehäuse eine metallische Anlage und eine Dichtung vorgesehen sind.According to the invention, this object is achieved in that the abutting against the ball Sealing surfaces of the sealing elements are designed obliquely that the sliding sleeves are a first Have sealing and a second seal, and that the selector shaft for sealing has a primary seal, a sealing ring and a spring-loaded sealing ring, and that the sealing diameter when screwing is smaller than the thread diameter and that between the screw connection and the housing a metallic system and a Seal are provided.

Nach der Erfindung ist auch vorgesehen, dass dass die erste Abdichtung aus einem O-Ring und einem Stützring besteht.According to the invention it is also provided that the first seal consists of an O-ring and a support ring.

Erfindungsgemäß ist auch vorgesehen, dass die zweite Abdichung aus einem Reingraphitring und einer Tellerfeder besteht.According to the invention, it is also provided that the second seal consists of a pure graphite ring and a disc spring.

Erfindungsgemäß ist es auch, dass die Primärabdichtung an der Schaltwelle aus einem O- Ring und einem Stützring besteht.It is also according to the invention that the primary seal on the selector shaft consists of an O- Ring and a support ring consists.

Vorteilhaft ist es auch, dass die erste Abdichtung und die Primärabdichtung als federbelastete Kunststoff-Ringdichtungen ausgebildet sind. It is also advantageous that the first seal and the primary seal are spring-loaded Plastic ring seals are formed.  

Im Rahmen der Erfindung liegt es auch, dass die Schaltwelle Entlastungsbohrungen aufweist.It is also within the scope of the invention that the selector shaft has relief bores.

Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, dass nun ein Kugelhahn zur Verfügung steht, der auch sehr hohen Drücken, beispielsweise von Gasen, bis ca. 200 bar und gleichzeitig in einem großen Temperaturbereich von ca. -40°C bis +200°C, also bei großer Feuersicherheit, eingesetzt werden kann.The advantages achieved with the invention are, in particular, that a ball valve now is available, which also has very high pressures, for example of gases, up to approx. 200 bar and at the same time in a wide temperature range from approx. -40 ° C to + 200 ° C, i.e. at great fire safety, can be used.

Zwei Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden nachfolgend beschrieben. Es zeigen:Two embodiments of the invention are shown in the drawings and will described below. Show it:

Fig. 1 einen erfindungsgemäßen Kugelhahn im Längsschnitt, Fig. 1 shows a ball valve according to the invention in longitudinal section;

Fig. 2 die Draufsicht einen solchen Kugelhahns ohne Hahnschlüssel, Fig. 2 is a plan view of such a ball valve without tap key,

Fig. 3 die Vorderansicht des Kugelhahns, Fig. 3 is a front view of the ball valve,

Fig. 4 die Einzelheit X aus Fig. 1, Fig. 4 shows the detail X from FIG. 1,

Fig. 5 die Einzelheit Y aus Fig. 4, Fig. 5 shows the detail Y from FIG. 4,

Fig. 6 einen erfindungsgemäß modifizierten Kugelhahn und Fig. 6 illustrates a modified ball valve according to the invention and

Fig. 7 die Einzelheit Z aus Fig. 6. Fig. 7 shows the detail Z from FIG. 6.

Der erfindungsgemäße Kugelhahn besteht aus einem Gehäuse 1, einer drehbar gelagerten Kugel 10, der Kugel 10 zugeordnete Schiebehülsen 12 und einer Verschraubung 22.The ball valve according to the invention consists of a housing 1 , a rotatably mounted ball 10 , sliding sleeves 12 assigned to the ball 10 and a screw connection 22 .

Die Kugel 10 wird über die Schaltwelle 3 mit Hilfe eines Hahnschlüssels 20 betätigt. Dabei dient ein Zylinderkerbstift 2 als Begrenzung für die Anschlagscheibe 17. Die Tellerfeder 18 und die Sechskantmutter 19 dienen der Befestigung des Hahnschlüssels 20.The ball 10 is actuated via the control shaft 3 with the aid of a tap key 20 . A cylindrical notch pin 2 serves as a limit for the stop disk 17 . The plate spring 18 and the hexagon nut 19 are used to fasten the tap wrench 20 .

Maßgebend für die Verwendbarkeit eines Kugelhahns bei hohen Drücken und hohen Temperaturen sind die Dichtungssysteme an der Verschraubung 22, der Kugel 10 mit den Schiebehülsen 12 und an der Schaltwelle 3. Die Erfindung geht hier neue Wege, wie das aus Fig. 4 ersichtlich ist, welche die Einzelheit X aus Fig. 1 darstellt. Die Einzelheit Y aus Fig. 4 zeigt die Fig. 5. Aus letzterer ist ein wesentliches Merkmal der Erfindung zu ersehen, dass die an der Kugel 10 anliegenden Dichtflächen der Dichtelemente 11 schräg ausgebildet sind. So ergibt sich eine linienförmige Abdichtung und bei kleinsten Verformungen der Dichtelemente 11 ergeben sich schnell große Flächen zur Aufnahme großer Kräfte bzw. großer Drücke. An dem Dichtelement 11 in Fig. 5 befindet sich eine Entlastungsnut 24 und eine Schräge 25, die einen Druckaufbau hinter dem Dichtelement 11 verhindern und somit den Austritt des Dichtelementes 11 während des Schaltvorganges unmöglich machen. Bei der erfindungsgemäßen Konstruktion (Fig. 5) ergibt sich auch, dass im Falle eines Brandes an dem Punkt 26 eine metallische Abdichtung zwischen Schiebehülse 12 und Kugel 10 entsteht, was auch zur Feuersicherheit des neuen Kugelhahns beiträgt.The sealing systems on the screw connection 22 , the ball 10 with the sliding sleeves 12 and on the control shaft 3 are decisive for the usability of a ball valve at high pressures and high temperatures. The invention breaks new ground here, as can be seen from FIG. 4, which represents the detail X from FIG. 1. The detail Y from FIG. 4 shows FIG. 5. From the latter, an essential feature of the invention can be seen that the sealing surfaces of the sealing elements 11 abutting the ball 10 are formed obliquely. This results in a linear seal and, with the smallest deformations of the sealing elements 11 , large areas quickly arise for absorbing large forces or high pressures. On the sealing element 11 in FIG. 5 there is a relief groove 24 and a bevel 25 which prevent pressure build-up behind the sealing element 11 and thus make it impossible for the sealing element 11 to escape during the switching process. In the construction according to the invention ( FIG. 5) it also results that in the event of a fire at point 26 a metallic seal is created between the sliding sleeve 12 and the ball 10 , which also contributes to the fire safety of the new ball valve.

Das besondere Dichtsystem zwischen den Schiebehülsen 12 und dem Gehäuse 1 sowie der Verschraubung 22 ist die Serienschaltung einer ersten Abdichtung 15/16 und einer zweiten Abdichtung 13/14. Mit 15 ist ein O-Ring bezeichnet und mit 16 ein Stützring. 14 ist ein Ring, beispielsweise aus Reingraphit, dem eine Tellerfeder 13 zugeordnet ist.The special sealing system between the sliding sleeves 12 and the housing 1 and the screw 22, the series circuit of a first seal 15/16 and a second sealing 13/14. 15 denotes an O-ring and 16 a support ring. 14 is a ring, for example made of pure graphite, to which a plate spring 13 is assigned.

Wie aus den Fig. 1 und 4 ersichtlich ist, besteht das Dichtsystem der Schaltwelle 3 gegen das Gehäuse 1 aus einer Primärabdichtung 6/7, einem Dichtring 5 und einem vorzugsweise aus Reingraphit bestehenden Dichtring 8, dem ein Federring 9 zugeordnet ist. Mit 6 ist ein O-Ring bezeichnet, 7 ist der dazugehörige Stützring.As is apparent from FIGS. 1 and 4, the sealing system of the switching shaft 3 against the housing 1 comprises a primary seal 6/7, a sealing ring 5 and a preferably consists of pure graphite sealing ring 8, which a spring ring 9 is assigned. 6 is an O-ring, 7 is the associated support ring.

Das Dichtsystem Verschraubung 22 - Gehäuse 1 ist dadurch gekennzeichnet, dass der Abdichtdurchmesser dAB kleiner als der Gewindedurchmesser dG (Fig. 1 und 4) ist, eine Dichtung 21 vorgesehen ist, vorzugsweise aus Reingraphit bestehend, sowie eine metallische Anlage A vorhanden ist.The sealing system screw connection 22 - housing 1 is characterized in that the sealing diameter dAB is smaller than the thread diameter dG (FIGS . 1 and 4), a seal 21 is provided, preferably consisting of pure graphite, and there is a metallic attachment A.

Die Fig. 6 und 7 zeigen eine Modifikation des erfindungsgemäßen Kugelhahns: Dabei sind die erste Abdichtung 15/16 und die Primärabdichtung 6/7 - wie gezeichnet - als Kunststoff- Ringdichtungen ausgebildet. Figs. 6 and 7 show a modification of the ball valve according to the invention: where the first seal 15/16 and the primary seal 6/7 - as drawn - designed as a plastic ring seals.

Was die perfekte Funktion der Schaltwelle 3 anbelangt, so ist gem. der Erfindung vorgesehen, Entlastungsbohrungen 23, wie das Fig. 4 zeigt, vorzusehen. Durch diese Maßnahme ist sichergestellt, dass die Abdichtung nicht an der Anlaufscheibe 4 erfolgt, sondern an dem einen kleineren Durchmesser aufweisenden O-Ring 6. - Die besagte Anlaufscheibe 4 besteht vorzugsweise aus Metall und kann mit einem Kunststoff beschichtet sein, was gute Reibwerte mit dem Ziel eines geringen Schaltdrehmoments und dem Schutz vor Fressern sowie Verschleißschutz mit sich bringt.As far as the perfect function of the control shaft 3 is concerned, according to the invention provided to provide relief bores 23 , as shown in FIG. 4. This measure ensures that the sealing does not take place on the thrust washer 4 , but on the O-ring 6 which has a smaller diameter. - The said thrust washer 4 is preferably made of metal and can be coated with a plastic, which brings about good coefficients of friction with the aim of low switching torque and protection against seizures and wear protection.

Claims (6)

1. Kugelhahn mit einer in einem Gehäuse (1) drehbar gelagerten Kugel (10), der in Durchflussrichtung Schiebehülsen (12) zugeordnet sind, und zur Betätigung der Kugel (10) eine Schaltwelle (3) sowie eine das Gehäuse (1) verschließende Verschraubung (22) vorgesehen sind, dadurch gekennzeichnet, dass die an der Kugel (10) anliegenden Dichtflächen der Dichtelemente (11) schräg ausgebildet sind, dass die Schiebehülsen (12) eine erste Abdichtung (15/16) und eine zweite Abdichtung (13/14) aufweisen, und dass die Schaltwelle (3) zur Abdichtung eine Primärabdichtung (6/7), einen Dichtring (5) und einen federbelasteten Dichtring (8) aufweist, und dass bei der Verschraubung (22) der Abdichtdurchmesser (dAB) kleiner als der Gewindedurchmesser (dG) ist und dass zwischen der Verschraubung (22) und dem Gehäuse (1) eine metallische Anlage (A) und eine Dichtung (21) vorgesehen sind.1. Ball valve with a ball ( 10 ) rotatably mounted in a housing ( 1 ), to which sliding sleeves ( 12 ) are assigned in the direction of flow, and for actuating the ball ( 10 ) a control shaft ( 3 ) and a screw connection that closes the housing ( 1 ) are provided (22), characterized in that the voltage applied to the ball (10) sealing surfaces of the sealing elements (11) are formed obliquely, that the sliding sleeves (12) a first seal (15/16) and a second seal (13/14 have), and that the switching shaft (3) to seal having a primary seal (6/7), a sealing ring (5) and a spring-loaded sealing ring (8), and in that when the screw (22) of the sealing diameters (dAB) is smaller than the Thread diameter (dG) and that between the screw connection ( 22 ) and the housing ( 1 ) a metallic system (A) and a seal ( 21 ) are provided. 2. Kugelhahn nach Anspruch 1, dadurch gekennzeichnet, dass die erste Abdichtung aus einem O-Ring (15) und einem Stützring (16) besteht.2. Ball valve according to claim 1, characterized in that the first seal consists of an O-ring ( 15 ) and a support ring ( 16 ). 3. Kugelhahn nach Anspruch 1, dadurch gekennzeichnet, dass die zweite Abdichtung aus einem Reingraphitring (14) und einer Tellerfeder (13) besteht.3. Ball valve according to claim 1, characterized in that the second seal consists of a pure graphite ring ( 14 ) and a plate spring ( 13 ). 4. Kugelhahn nach Anspruch 1, dadurch gekennzeichnet, dass die Primärabdichtung an der Schaltwelle aus einem O-Ring (6) und einem Stützring (7) besteht.4. Ball valve according to claim 1, characterized in that the primary seal on the control shaft consists of an O-ring ( 6 ) and a support ring ( 7 ). 5. Kugelhahn nach Anspruch 1, dadurch gekennzeichnet, dass die erste Abdichtung (15/16) und die Primärabdichtung (6/7) als federbelastete Kunststoff-Ringdichtungen ausgebildet sind.5. Ball valve according to claim 1, characterized in that the first seal (15/16) and the primary seal (6/7) plastic-ring seals are designed as spring-loaded. 6. Kugelhahn nach Anspruch 1, dadurch gekennzeichnet, dass die Schaltwelle (3) Entlastungsbohrungen (23) aufweist.6. Ball valve according to claim 1, characterized in that the switching shaft ( 3 ) has relief bores ( 23 ).
DE2000158530 2000-11-24 2000-11-24 Ball valve has seal between ball and sliding sleeve with sloping surface fitting against ball, two seal systems fitted between sleeve and threaded connector, and valve spindle with primary seal, sealing ring and spring-biased sealing ring Withdrawn DE10058530A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2000158530 DE10058530A1 (en) 2000-11-24 2000-11-24 Ball valve has seal between ball and sliding sleeve with sloping surface fitting against ball, two seal systems fitted between sleeve and threaded connector, and valve spindle with primary seal, sealing ring and spring-biased sealing ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2000158530 DE10058530A1 (en) 2000-11-24 2000-11-24 Ball valve has seal between ball and sliding sleeve with sloping surface fitting against ball, two seal systems fitted between sleeve and threaded connector, and valve spindle with primary seal, sealing ring and spring-biased sealing ring

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DE2000158530 Withdrawn DE10058530A1 (en) 2000-11-24 2000-11-24 Ball valve has seal between ball and sliding sleeve with sloping surface fitting against ball, two seal systems fitted between sleeve and threaded connector, and valve spindle with primary seal, sealing ring and spring-biased sealing ring

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WO2006019912A1 (en) 2004-07-15 2006-02-23 Swagelok Company Ball valve seat arrangement
WO2009013467A3 (en) * 2007-07-20 2009-04-23 Parker Hannifin Ltd Valve arrangement
CN105805346A (en) * 2016-04-29 2016-07-27 凯瑞特阀业有限公司 Ball valve
US20160319940A1 (en) * 2014-10-28 2016-11-03 Kitz Corporation Trunnion-type ball valve
CN106122509A (en) * 2016-08-31 2016-11-16 苏州纽威阀门股份有限公司 A kind of floating ball valve
EP3204673A1 (en) * 2014-10-06 2017-08-16 Alco Valves Group Limited Improvements to a valve assembly
US20170307087A1 (en) * 2016-04-20 2017-10-26 Fisher Controls International Llc Rotary control valve having a clamped valve seat
CN109854779A (en) * 2019-01-18 2019-06-07 郑州市新玉源机械工业有限公司 High frequency wear resistance ball valve
US11162595B2 (en) 2016-02-18 2021-11-02 Gasket International S.R.L. Sealing assembly for ball valves and ball valve comprising such a sealing assembly
CN117128333A (en) * 2023-08-09 2023-11-28 中山铁王流体控制设备有限公司 Ball valve for polycrystalline silicon with high sealing performance

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7635113B2 (en) 2004-07-15 2009-12-22 Swagelok Company Ball valve seat arrangement
WO2006019912A1 (en) 2004-07-15 2006-02-23 Swagelok Company Ball valve seat arrangement
WO2009013467A3 (en) * 2007-07-20 2009-04-23 Parker Hannifin Ltd Valve arrangement
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