DE635767C - Sealing ring for socket pipe connections with stuffing box - Google Patents

Sealing ring for socket pipe connections with stuffing box

Info

Publication number
DE635767C
DE635767C DEV29132D DEV0029132D DE635767C DE 635767 C DE635767 C DE 635767C DE V29132 D DEV29132 D DE V29132D DE V0029132 D DEV0029132 D DE V0029132D DE 635767 C DE635767 C DE 635767C
Authority
DE
Germany
Prior art keywords
sealing ring
stuffing box
pipe connections
socket pipe
socket
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
DEV29132D
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.)
EISENWERKE A G DEUTSCHE
Original Assignee
EISENWERKE A G DEUTSCHE
Publication date
Priority to DEV29132D priority Critical patent/DE635767C/en
Application granted granted Critical
Publication of DE635767C publication Critical patent/DE635767C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/04Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection
    • F16L19/05Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection with a rigid pressure ring between the screwed member and the exterior of the flared pipe end
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/06Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • F16L19/07Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends adapted for use in socket or sleeve connections

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Description

Man hat schon elektrisch isolierende Rohrverbindungen vorgeschlagen, bei denen die Stoßstelle der Rohre durch ein quer geteiltes Zwischenstück überbrückt wird, dessen freie, im Querschnitt keilförmig zugespitzte Ränder in einen Verdickungswulst je eines auf jedem Rohrende angeordneten Gummiringes dadurch eingedrückt werden, daß hinter die Verdikk\uigswulste der Giunmiringe Flanschen-greifen, die durch Schrauben miteinander \ verspannt sind. Diese Rohrverbindungsart ist sehr umständlich und teuer, da außer den beiden Flanschen nebst zugehörigen Flanschenschrauben und dem quer geteilten Zwischenstück zwei Gummiringe auf den Rohren und ein weiterer in der Querteilungsfuge des Zwischenstückes angeordneter Dichtungsring erforderlich sind.Electrically insulating pipe connections have already been proposed in which the joint between the pipes is bridged by a transversely divided intermediate piece, the free edges of which, with a wedge-shaped cross-section, are pressed into a thickening bead of a rubber ring arranged on each pipe end by being pushed behind the bulging beads the Giunmiringe flanges-grip, which are clamped together by screws \ . This type of pipe connection is very cumbersome and expensive, since apart from the two flanges along with the associated flange screws and the transversely divided intermediate piece, two rubber rings on the pipes and another sealing ring arranged in the transverse joint of the intermediate piece are required.

Es sind ferner 'elektrisch isolierende Muffenverbindungen für Rohrleitungen bekannt, bei denen der elektrisch isolierende Gummiring den Rand des in die Muffe eingeschobenen Spitzendes umgreift. Bei diesen bekannten Einrichtungen, ist jedoch entweder außer der Dichtung ein besonderer Isolationskörper vorgesehen oder es ist die Dichtung besonders geformt und hat erheblich größere Abmessungen als die sonst gebräuchlichen Dichtungen. Diese Umstände verteuern die Isolation und erschweren das Montieren der Rohrleitung. .There are also known 'electrically insulating sleeve connections for pipelines, in which the electrically insulating rubber ring is the edge of the inserted into the sleeve Spiky grips. With these known devices, however, either is except the seal is provided with a special insulation body or the seal is special shaped and has considerably larger dimensions than the otherwise common seals. These circumstances make the insulation more expensive and make it more difficult to assemble the Pipeline. .

Bei mit Stopfbüchsen ausgerüsteten Muffenrohrverbindungen hat man bisher außer der eigentlichen Dichtung besondere, das Spitzende auf eine längere Strecke umgebende Isoliermanschetten verwenden müssen, weil die Ausbeulungen des eigentlichen Dichtungsringes, die sich erst beim Anziehen der Stopfbüchse bilden und die sich dann etwas in die Spalten zwischen Spitzende und Muffe bzw. Anzugsvorrichtung eindrücken, keine einwandfreie Isolation gewährleisten, da die Ausbildung dieser Ausbeulungen, ihre Lage und Länge usw. völlig dem Zufall überlassen ist. Gemäß der Erfindung gelingt es nun auf überraschend einfache Weise, Muffenrohrverbindungen mit Stopfbüchse dadurch als elektrisch isolierende Verbindungen auszubilden, daß der aus elektrisch nicht leitendem Stoff bestehende Dichtungsring von etwa keilförmigem Querschnitt bereits in nicht eingesetztem Zustand an seinen Stirnflächen Zungen aufweist, die in den Ringspalt einerseits zwischen Muffe und Spitzende und andererseits zwischen Stopfbüchse und Spitzende hinein- S5 ragen.In the case of socket pipe connections equipped with stuffing boxes, besides the actual seal, special insulating sleeves surrounding the spigot end for a longer distance have had to be used, because the bulges of the actual sealing ring, which only form when the stuffing box is tightened, and which then appear somewhat in the gaps between the spigot ends and press in the sleeve or tightening device, do not guarantee proper insulation, since the formation of these bulges, their position and length, etc. is completely left to chance. According to the invention, it is now possible in a surprisingly simple manner to design socket pipe connections with a stuffing box as electrically insulating connections that the sealing ring, which is made of electrically non-conductive material and has an approximately wedge-shaped cross-section, has tongues on its end faces when not inserted extend between socket and spigot end, and on the other hand between the gland screwing in and spigot S5.

Auf der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigen: Abb. ι den Querschnitt der Dichtung, Abb. 2 den Längenschnitt durch die fertige Muffenrohrverbindung.An exemplary embodiment of the invention is shown in the drawing. Show it: Fig. Ι the cross section of the seal, Fig. 2 the longitudinal section through the finished Socket pipe connection.

Die Dichtung 1 weist schon in nicht eingesetztem Zustande an ihren beiden Stirnflächen zungenartige Vorsprünge 2, 3 auf. Die Zungen können aus besonders widerstandsfähigem. Stoff bestehen und mit der übrigen Dichtung ein Stück bilden. Die Zungen 2, 3 schie-.ben sich bereits beim Einsetzen des Dichtungsringes von Hand auf dem ganzen Rohrumfang in die Ringspalte 4, 5 zwischen Rohrspitzende 6 einerseits und Muffe bzw. Stopf-.büchse 7 andererseits und füllen diese Spalten auch dann schon aus, wenn noch kein Dichtungsdruck auf den Dichtungsring ausgeübt wird. In der fertigen Verbindung bieten die Zungen dadurch, daß sie nicht, durch erzwungene Verformung in die Ringspalte hineingelangt sind, eine sichere Gewähr dafür, daß auch bei Relativbewegung des Rohrspitzendes 6 gegenüber der Muffe keine metal- So lische Berührung der beiden Rohre stattfindet, so daß elektrische Ströme von einem Rohr zum andern nicht fließen können.The seal 1 has already in the non-inserted state on both of its end faces tongue-like projections 2, 3. The tongues can be made of particularly resistant material. Consist of fabric and form one piece with the rest of the seal. The tongues 2, 3 slide when inserting the sealing ring by hand around the entire circumference of the pipe into the annular gaps 4, 5 between the pipe spigot end 6 on the one hand and the socket or stuffing box 7 on the other hand and fill in these columns even if not yet Sealing pressure is exerted on the sealing ring. Bid in the finished connection the tongues in that they do not get into the annular gaps by forced deformation are a sure guarantee that even with relative movement of the pipe spigot end 6 there is no metallic contact between the two pipes opposite the socket, so that electric currents cannot flow from one pipe to the other.

Die Erfindung ist auch geeignet für Stopfbüchsen ohne Gewinde oder Stopfbüchsen, die am äußeren Umfang der Muffe aufgeschraubt sind.The invention is also suitable for stuffing boxes without thread or stuffing boxes, which are screwed onto the outer circumference of the sleeve.

Claims (1)

Patentanspruch:Claim: Dichtungsring für Muffeiirohrverbindungen mit Stopfbüchse, dadurch gekennzeichnet, daß der aus elektrisch nicht leitendem Stoff bestehende Dichtungsring (1) von etwa keilförmigem Querschnitt im nicht eingesetzten Zustand an seinen Stirnflächen Zungen (2, 3) aufweist, die in den Ringspalt (4, 5) zwischen Muffe bzw. Stopfbüchse einerseits und Rohrspitzende andererseits hineinragen. xooSealing ring for muffle pipe connections with stuffing box, characterized in that that the sealing ring (1) made of electrically non-conductive material of approximately wedge-shaped cross-section when not inserted at its end faces Has tongues (2, 3) which are inserted into the annular gap (4, 5) between the socket or Stuffing box on the one hand and pipe spigot end on the other. xoo Hierzu r Blatt ZeichnungenPlease refer to the sheet of drawings
DEV29132D Sealing ring for socket pipe connections with stuffing box Expired DE635767C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV29132D DE635767C (en) Sealing ring for socket pipe connections with stuffing box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV29132D DE635767C (en) Sealing ring for socket pipe connections with stuffing box

Publications (1)

Publication Number Publication Date
DE635767C true DE635767C (en) 1936-09-29

Family

ID=7584650

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV29132D Expired DE635767C (en) Sealing ring for socket pipe connections with stuffing box

Country Status (1)

Country Link
DE (1) DE635767C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2571468A1 (en) * 1984-10-10 1986-04-11 St Mihiel Sa TIGHTENING AND SEALING RING, METHOD FOR MANUFACTURING SAME, AND CONNECTION FOR SEMI-RIGID PIPES EQUIPPED WITH SUCH RING
WO2019220604A1 (en) * 2018-05-17 2019-11-21 ミライアル株式会社 Holding structure of pipe member, end closure tool, and connection tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2571468A1 (en) * 1984-10-10 1986-04-11 St Mihiel Sa TIGHTENING AND SEALING RING, METHOD FOR MANUFACTURING SAME, AND CONNECTION FOR SEMI-RIGID PIPES EQUIPPED WITH SUCH RING
EP0178230A1 (en) * 1984-10-10 1986-04-16 St Mihiel S.A. Coupling sleeve provided with locking and sealing means, process for its production and semi-rigid tube coupling using such a sleeve
WO2019220604A1 (en) * 2018-05-17 2019-11-21 ミライアル株式会社 Holding structure of pipe member, end closure tool, and connection tool

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