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Priority to ES1986293344UpriorityCriticalpatent/ES293344Y/en
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Publication of ES293344YpublicationCriticalpatent/ES293344Y/en
Calibrator of plastic pipe, of the type of low fluid calibration that is housed inside the cooling tank, inside the cooling bath that is located after the extruded row and is formed by a cylindrical tube provided with paths plates at its ends, a cylindrical tube that is hollow for the passage through its interior of the plastic tube to be calibrated, characterized in that on the walls of the calibrator tube a series of helical grooves appear, which perforate the wall, whose width and angle of helix they are variable depending on the type of plastic material to be calibrated. (Machine-translation by Google Translate, not legally binding)