Servo valve to be controlled by an armature and activated by its own medium has a step piston moving in a valve casing and supporting a valve disk with a pressure chamber linked to a valve inlet

摘要

A roll membrane, a step piston and a valve disk form a single-piece closing part (3) made from elastomers. A sealing area contains the valve disk. The outer edge of the roll membrane forms a seal by being clamped between a bottom part's (1) catch (1.1) and a top part's (2) collar (2.4). The closing part separates a pressure chamber (4) linked to a valve inlet (E).