Kuhnke 47.002 or 47.003 AND/OR Pneumatic Logic Valves.
Kuhnke 47.002 and 47.003 logic valves are constructed of light aluminium. A piston control design offers smooth operation and output flow. Port sizes are M5 female threaded.
OR logic valves, also typically known as shuttle valves, give an output from port 2 when pressure is present at either input port 1. No output is given if two simultaneous inputs are present. OR logic valves are particularly useful if there is more than one signal input to a single device. They prevent air travelling through the adjacent connected port preventing unwanted signals within a circuit.
AND logic valves give an output from port 2 when two input signal at ports 1 are present simultaneously. They are also typically known as ‘YES logic’ valves. AND logic valves are particularly useful for sequence checking within pneumatic circuits. It is possible to connect more than one AND logic valve creating multiple inputs required before an output can occur.
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