DE1868125U - PIPE CONNECTION. - Google Patents

Description

on

6484 A 2 Düsseldorf ₉ December 3, 1962

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Anaeidering! Irma & ebr ₀ Tetter *, Düsseldorf- »Benrathe, Benrather Schloßalles 11-19

"Boron compound ^ί}

It is already known a pipe joint, in which the pipes! Tapered attracting face against each other out and pulled together by means of a union nut with, "which is on the detected one side a arranged at the respective pipe collar and screwed to a gain of 6-egenrohrs _o This However, the known 2ius guide form of a pipe union requires the use of comparatively strong material. The parts must be pressed or forged so that their manufacture is limited to comparatively short lengths and to the use of thick-walled pipe material

According to the invention is pre-schla, _s gen conically widen and the G-egenrohr to correspondingly inwardly drawn conical bead ₉ so that it is in the extension of the first tube with its conical "^ a of connectable tubes pool can be used adjacent · Both tubes are then according to the invention Tightened by means of a union nut which engages behind the air flange of the second-mentioned pipe and grips the first pipe with the help of a threaded ring pushed onto it, and pulls the conical surfaces of the pipes against each other.

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A variant of the pipe connection explained above can be obtained by "placing both pipes at the same time Flanged like a flange and the tubes placed against one another with the interposition of a sealing ring with the help of a Union nut contracts, which lays on one side against the flange of the pipe and the other pipe with the help a G-ewinderings pushed against the flange of the same detected, which is screwed with the union nut.

In the accompanying drawing is that explained above Design of a pipe union, for example and schematically shown

Figure 1 shows an embodiment of the pipe screw connection by means of conical

FIG. 2 shows an embodiment with flange-like sealing surfaces.

According to figure 1, the two pipe sections to be connected are denoted by 1 and 2. The end of the tube 1 is provided with a flange 3 , which has a vertically offset rear contact surface 4 and a sealing surface 5 which is conical towards the front . Both tubes are held together by means of a union nut, the collar 8 of which lies against the surface 4 of the tube 1 and a ring 9 is screwed into the thread, the conical surface 10 of which corresponds to the conical outer surface of the end of the pipe 2.

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Such a pipe connection is required if the one on top of the other conical surfaces "of both tubes processed accordingly are, no further seal.

According to -% gur 2, both pipes 1 and 2 are on their opposite sides The ends are provided with flat air flanges 11 and 12 that are perpendicular to the pipe wall. * Both pipes are here pushed against one another by means of a sealing ring 13; As in the case of the connection according to - ^ figure 1, they are Union nut 14 pulled together, the collar 15 of which engages the flange 16 of the pipe 1 and the thread of which engages the pipe 2 The threaded ring 17 is pushed against the flange 18 of the tube 2.

Compared to the previous version of such pipe screw connections The proposed design offers the advantage that the tubes are made of relatively thin-walled material, i.e. only manufactured taking into account the internal pressure to be absorbed regardless of the special design of the pipe ends can be. You can also combine any length of pipe with each other, so it is not special Manufacturing of shorter connecting pipe pieces instructed.

There are also dangers to the sealing surfaces caused by welding of pipes to the previously usual short pipe sections are avoided. The possibility of longer design of the pipes according to the invention also offers the security that no

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other parts near the point of vision of apparatus or devices "when welding in Can be affected. In other words: you are independent in the choice of the position of the welding point.

In practice, a long outer ear τοη about 8 cm is sufficient, to a harmful effect of the heat of welding a ^ f the seal turn off.

Protection claims:

Claims (4)

- 5 _ protection claims; 1. Pipe connection, "in which the means of a sealing surface mutually guided pipe parts are pulled together by a union nut, characterized in that the one Tube widened conically, the other tube with a correspondingly conically drawn-in fluff with a contact surface that is offset at the rear (4) for the collar (8) of the union nut is provided, with which a conical inner surface on the conically widened Threaded ring pushed onto the end of the other pipe is screwed will, 2. Pipe connection according to claim 1, characterized in that the ends of both pipes in the form of flat, perpendicular to Pipe wall of standing flanges flared and interposed a sealing ring are held together by a union nut (14), the collar (15) of which the flange of the one Pipe and the other pipe by means of a G-ewinder ring screwed to the nut and pushed onto the first pipe pulls against the former pipe. 3 pipe connection according to claims 1 and 2, characterized in that that the tubes (1) and (2) in any length and only with one of the required compressive strength or training a connecting pipe corresponding strength. 4. Pipe connection according to claims 1 to 3 »characterized in that that the pipes are of such a length, advantageously at least 8 cm, that there is a harmful effect on the Welding heat on the sealing point when welding another pipe section is avoided.