17.11.03 No. 1 / 31© Festo Didactic – Training and Consulting Directional control valves - solenoid
Directional control valves
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Symbol development
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Ports and Positions
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Solenoid valves
The directional control valves used in electropneumatics are similar to those used in pure pneumatics. The only difference is that they are actuated by solenoids.
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Solenoids
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2/2-way single solenoid valve
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3/2-way single solenoid valve
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3/2-way single solenoid valve
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Pilot signal flow
ELECTRICAL SIGNALAPPLIED TOSOLENOID
SOLENOID ACTUATESPILOT VALVE
PILOT ACTUATESMAIN VALVE
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Pilot control
17.11.03 No. 11 / 31© Festo Didactic – Training and Consulting Directional control valves - solenoid
3/2-way single solenoid valve with pilot control
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3/2-way single solenoid valve with pilot control
2
1 3
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3/2-way single solenoid valve with pilot control
2
1 3
Y1
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5/2-way single solenoid valve with pilot control
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5/2-way single solenoid valve with pilot control
2(B)
3(R)
1(P)
5(A)
4(S)
17.11.03 No. 16 / 31© Festo Didactic – Training and Consulting Directional control valves - solenoid
5/2-way single solenoid valve with pilot control
2(B)
3(R)
1(P)
5(A)
4(S)
17.11.03 No. 17 / 31© Festo Didactic – Training and Consulting Directional control valves - solenoid
5/2-way single solenoid valve with pilot control
2(B)
3(R)
1(P)
5(A)
4(S)
17.11.03 No. 18 / 31© Festo Didactic – Training and Consulting Directional control valves - solenoid
5/2-way single solenoid valve with pilot control
2(B)
3(R)
1(P)
5(A)
4(S)
17.11.03 No. 19 / 31© Festo Didactic – Training and Consulting Directional control valves - solenoid
5/2-way single solenoid valve with pilot control
2(B)
3(R)
1(P)
5(A)
4(S)
17.11.03 No. 20 / 31© Festo Didactic – Training and Consulting Directional control valves - solenoid
5/2-way single solenoid valve with pilot control
2(B)
3(R)
1(P)
5(A)
4(S)
17.11.03 No. 21 / 31© Festo Didactic – Training and Consulting Directional control valves - solenoid
5/2-way single solenoid valve with pilot control
2(B)
3(R)
1(P)
5(A)
4(S)
17.11.03 No. 22 / 31© Festo Didactic – Training and Consulting Directional control valves - solenoid
5/2-way single solenoid valve with pilot control
2(B)
3(R)
1(P)
5(A)
4(S)
17.11.03 No. 23 / 31© Festo Didactic – Training and Consulting Directional control valves - solenoid
5/2-way single solenoid valve with pilot control
2(B)
3(R)
1(P)
5(A)
4(S)
17.11.03 No. 24 / 31© Festo Didactic – Training and Consulting Directional control valves - solenoid
5/2-way double solenoid valve with pilot control
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5/3-way double solenoid valve with pilot control
17.11.03 No. 26 / 31© Festo Didactic – Training and Consulting Directional control valves - solenoid
5/3-way double solenoid valve with pilot control
17.11.03 No. 27 / 31© Festo Didactic – Training and Consulting Directional control valves - solenoid
5/3-way double solenoid valve with pilot control
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5/3-way double solenoid valve with pilot control
5 3
4 2
5
4
1
3
2
5
4
1
3
2