Improved fit for non-metallic piping joints that can be used alternatively by the traditional preset joining system with auxiliary mechanical means or by a new manual and removable joining system without the need for auxiliary mechanical means, characterized by being carried out from the following elements: - main body provided with longitudinal rings where they will accommodate O-rings that will serve to ensure the tightness once assembled the set to be in contact with the press. It is configured with projections and channels to assemble the press and the outer sleeve manually and be able to dismantle it. - an internal system, which will be fixed to the outer shell around the main body, and consists of an unloader whose main function is the dismantling of the pipe, and a metal bushing, which houses the unloader in the anti-return washer and prevents the backflow of the pipe and the centering, centering the pipe for its entry into the joint, which makes sealing. - a cylindrical outer shell of slightly conical configuration that allows the housing of the different elements of the internal system. This bushing is threaded to the main body by the female thread that it has. When this bushing completely threads, it presses on the rear joint, which makes the seal. (Machine-translation by Google Translate, not legally binding)
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