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Vogele Basic Training Hydraulics & Electrics

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H.5.0 Circuit symbols and circuits<br />

H.5.3 Directional control valves – Part 2<br />

2 0 1 2 0 1<br />

Directional control valves are represented by individual<br />

rectangles.<br />

The number of fields equates to the number of switching<br />

positions, which are designated with the figures ( 0 / 1 / 2 ).<br />

A B<br />

2 0 1<br />

The position of the respective lines indicates how the<br />

connections are connected.<br />

Small dashes on the connections indicate shut-offs.<br />

A B<br />

2 0 1<br />

P R<br />

Connections are designated with capital letters.<br />

A,B,C = Vent lines<br />

R,S = Vent (runback)<br />

P = Feeder (pressure line) X,Y,Z = Control line<br />

P R<br />

If a valve is switched proportionally, this is indicated by lines<br />

above and below the switching positions.

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