HYDRAULIC SERVO-ACTUATED VALVE HAVING A SIMPLIFIED ASSEMBLY

摘要

A hydraulic servo-actuated valve with a valve body having a first duct, a second duct, a main opening arranged on the valve body, an actuator arranged at the main opening and adapted to open and close the valve is provided. The valve has a lid arranged in an operative position on the valve body at the main opening, and the lid has a central zone concurring with the actuator to delimit an actuating chamber. The first duct has a first through-hole, and the lid has a second through-hole arranged in a position corresponding to the first through-hole, when the lid is arranged on the valve body in an operative position. The central zone of the lid also has a third through-hole. The lid has first connecting means adapted to allow a flanged and removable connection of a first operative member only to the lid, and the first connecting means is arranged near the second through-hole and the third through-hole.