ES321982A1 - Improvements in the construction of giratory nucleus valves. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improvements in the construction of rotating core valves, in which the valve body has a frustoconical main part like a cup, devoid of a larger base, in the part of which it is closed by means of a cover incorporated by screws or similar removable means, whose cover it has an internally threaded tubular extension towards the outside and internally made extensions which constitute stops, the interior of the main body part being occupied by a rotating core with a transverse passage which, in a position of rotation, coincides with the longitudinal passage extending from end to end of the valve body, starting from such core an axial rod that exits to the outside through a plug screwed into the tubular part of the lid, applying to such rod a rotational drive element, a sleeve of suitable material is fitted between the body and the rotating core, also dot of the appropriate steps, such improvements being characterized because the sleeve, of a material such as teflon, has a total cut according to a generatrix and a diametrically opposed nerve directed towards the outside, which will be housed in an internal groove of the main part of the valve body, such sleeve having a wedge profile which is perfectly adapted to the space between body and core, receiving axial thrust or tightening by appropriate means. (Machine-translation by Google Translate, not legally binding)