Developing a Pneumatic Actuating System to Illustrate the Functioning of an AND Logic Valve

Abstract

This paper presents the functioning of an AND logic valve, by developing a pneumatic model in the FluidSim modelling-simulation program. Also, the research by simulation will constitute the basis for implementing and developing on a test bench, the pneumatic actuation system. AND logic valves are mostly used in factories, on technological assembly lines, for an increase in security and protection of the working personnel, because the functioning of such logic valves implies that the operative uses both hands or executes two operations at the same time. Therefore, a practical example for the usage of such valves is when there is actuated a press, when, for labour protection reasons, in order to eliminate the possibility that the operative may harm himself, the press can only be actuated by pressing the actuation element with both hands.Yet again, another application of an AND logic valve is when the pressure within the circuit comes from two separate circuits.