FR2476267A1 - DERIVATION SOCKET FOR CONDUITS - Google Patents

Abstract

THE INVENTION RELATES TO A BYPASS FOR PIPES INSTALLED AND COMMISSIONED. THIS BYPASS INCLUDES A SLEEVE SHAPED BY TWO ELEMENTS 1, 2, TIGHTENED AROUND TUBE 3 TO BE DERIVED FROM WHICH THE UPPER PART 1 IS THREADED INSIDE 4 AND INCLUDES A VALVE 7 WITH THREAD 5 WHICH IS SCREWED ON THREAD 4 OF SLEEVE AND WHICH IS EQUIPPED WITH A HOLLOW PIERCING ORGAN. THE INTERNAL THREAD 4 IS INTERRUPTED IN THE UPPER PART TO CREATE A CYLINDRICAL SECTION 10. A RECESS IS PROVIDED IN THE THREADED PART 5 OF THE VALVE 7 FOR THE INTRODUCTION OF A SEAL 9. A NUT 11 MUST BE SCREWED ON THE THREAD 5 OF THE VALVE, TO ENSURE THAT THE VALVE CAN BE ORIENTED AS REQUIRED, WHILE GUARANTEING ITS PERFECT TIGHTNESS. THE INVENTION APPLIES TO PLUMBING.

Description

The present invention relates to a derivation

  for installed and commissioned pipelines, which includes a sleeve mounted around the branch pipe and a valve with a hollow wick and which is screwed onto the sleeve. In general, piercing branch taps are known to derive fluid from installed and in-service lines. These known solutions, in particular from Italian patents No. 997,303 and No. 12763-A / 77, provide for a sleeve that is suspended or to be fixed on a wall. A valve provided with a hollow wick is mounted on the upper part of this sleeve. When the closed valve is screwed onto the sleeve, the wick will pierce the pipe which will automatically create the bypass plug without spreading the fluid and without stopping fluid flow in the service line. This system, which has been successfully applied and can be used by anyone, even without technical knowledge,

  the disadvantage that the inspection of the

  the hand of the valve is not always in

  a convenient position for his maneuver.

  In fact, at the moment, the seal between the

  sleeve and the valve is ensured by an inser-

  in a recess in the upper surface of the threaded section of the sleeve. When the valve is screwed in until enough pressure is applied on this packing, the position will be difficult to obtain.

  wanted the steering wheel. It would be possible to change

  handle the filling with another having a different thickness

  but it would involve the need to stop the

flow in the branch pipe.

  The object of the invention is therefore to make the modifications

  cations necessary for the previously described solution, to allow stable positioning of the valve

  without any loss of fluid and with a definite orientation

the steering wheel.

  To achieve this, the invention provides the realization of a groove in the cylindrical portion uoqouwm a B number (9 egn2TJ) npu.dons uoqoueu a * s idoid nqouLqB eun 'snuuoo uo5ôj ounp' 4joquespd 4nsd usqouvu

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wall mounted (Figure 7).

  The lower part of the half-nanchon 1 has an internal thread 4 on which is screwed 1-thread 5 of the projection which carries the wick 6 of the valve or the valve 7. According to the invention, the thread 5 of the valve is

  interrupted by a recess 8 adapted to receive a garnish

  toroidal thread 9, while the thread 4 of the upper half-sleeve is interrupted in the upper part 10. In this way, the seal by the lining 9 can be

  assured pure almost the entire height of the section cylin-

  10 of the half sleeve to prevent losses of fluid at the brief moment of tightening or loosening of the valve. This was not possible in the known solutions because the lining is in this case on the upper surface of the half-sleeve 1 and clamped by

  the valve which must then be completely screwed.

  According to the invention, a nut is screwed on the

  5 of the valve which allows to lock the valve in its position -voulue when the nut is tightened against

  the upper edge of the half-sleeve 1.

  The operation of the socket forming the subject of the present invention is obvious. First, the nut It is screwed completely on the thread 5 of the

  valve and packing.9 is mounted in the groove 8.

  Then, the closed valve is screwed onto the thread 4 of the half-sleeve 1, on which the seal 12 is mounted in a known manner, between the pipe and the piercing bit and the edge 13, which allows the same scared sleeve to be used. tubes having different diameters. When the valve is

  the wick will pierce the tube creating a

  while lining 9 will sink into the

  cylindrical arrangement 10 to ensure the tightness of this

  section and prevent losses through the 12 guy.

  However, the total screwing of the valve makes

  the positioning of the steering wheel in its most appropriate position, and it will be necessary to loosen a little the valve to put it in the desired position and the

247626Z

-, 4I -,

  then lock in this position by the nut 11 which is

tight between the half sleeve 1.

247626 7

Claims (1)

CLAIM   Bypass outlet for connection of   installed with the proper orientation of the   pope equipped with a piercing organ, this undertaking   a sleeve formed of two elements (1, 2) clamped around the tube (3) to be derived and assembled by screws, the upper part (1) of which is internally threaded (4) and comprises a valve (7) with thread (5) which is screwed onto the thread (4) of the sleeve and which is provided with a   hollow piercing member (6) adapted to pierce the branch tube-   during assembly of the valve on the manehon,   characterized in that the inner thread (4) of the half   sleeve (1) is interrupted in the upper part to create a cylindrical section (10) in that a recess (8) is arranged in the threaded portion (5) of the valve (7) for introducing a filling toroldale (9) and in that a nut (11) must be screwed on the thread (5) of the valve, to ensure that after the screwing of the valve on the sleeve and the drilling of the tube to be connected, the valve can be arranged according to the needs   guaranteeing its perfect seal thanks to the   toroldale as well as the stability of the position of the valve by the nut (11) which is tight against the sleeve (1).