PIEZO-ACTUATED PINCH VALVE

摘要

A pinch valve meters fluid flowing through at least one tube. The valve utilizes an actuator assembly (20) comprising a piezo-electric member and a displacement amplifying structure to control a pinch member (40) movable against the tube for varying the cross-sectional area of the by pinching the flexible tube member against the tube housing body. Flow through the tube is proportional to the input voltage of the actuator assembly.