VALVULA PARA LA PURGA DE AIRE EN LA OPERACION DE LLENADO Y ADMISION DEL MISMO DURANTE EL VACIADO DE CONDUCTOS DE CIRCULACION DE LIQUIDOS A PRESION

摘要

It is of the type of valves formed by a hollow body divided into two parts that are coupled by enclosing a float (3) provided with a flexible sealing membrane (4) of the air outlet (6) by the thrust of the fluid entering through a bottom neck (5) for connecting to the duct. When air is produced, the float slides (3) so that the membrane (4) is separated and the air is removed. The flexible membrane (4) has some protrusions (10) and projections (11) on its surface that rests on an oblique surface of the float (3). Its smooth surface covers the grooved outlet and has a cylindrical protrusion (12) on an end for fastening by sliding in a top channel (13) of the float (3). The float has an aerodynamic shape and guided movement in the body by means of complementary protrusions (8) and recesses (9).