the proportional valve, particularly for feeding air pressure in a machine for forming articles of vet

摘要

In a proportional valve assembly (1), particularly for supplying compressed air on a glassware molding machine (3), a tubular body (18), having an axis (6) and air inlet (19) and outlet (20) ports, houses a slide member (22) which is slid axially along the axis (6), to open and close the inlet and outlet ports, by a linear actuator (9), on the one hand, and, on the other, by the reaction exerted by an elastic body (26) and the compressed air; the elastic body (26) being spaced apart from the slide member (22) and connected to the slide member by a relatively moving device (37). IMAGE