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Proportional spool valve
Proportional spool valve

Q = f (I) Volume flow adjustment characteristics Q = f (I) Volume flow adjustment characteristics
∆p = 10 bar ∆p = 10 bar
Measured at 50 °C Measured at 50 °C
ACB-S, AC1-S, CB2-S ACB-S, AC1-S, CB2-S
Execution L15 / L17 Execution L9
Q [l/min] Q [l/min]
30 K1078 30 K1084
25 25
20 Q N = 25 l/min 20
15 15 Q N = 25 l/min
Q N = 16 l/min
10 10 Q N = 16 l/min
Q N = 10 l/min
5 Q N = 5 l/min 5 Q N = 10 l/min
Q N = 5 l/min
0 0
-100 -80 -60 -40 -20 0 20 40 60 80 100 l [%] -100 -80 -60 -40 -20 0 20 40 60 80 100 l [%]

Q = f (I) Volume flow adjustment characteristics Q = f (I) Volume flow adjustment characteristics
∆p = 10 bar ∆p = 10 bar
Measured at 50 °C Measured at 50 °C
ADB-V, AD1-V, DB2-V ADB-V, AD1-V, DB2-V
Execution L15 / L17 Execution L9
Q [l/min] Q [l/min]
30 K1079 30 K1085
25 25
20 Q N = 25 l/min 20 Q N = 25 l/min
15 15
Q N = 16 l/min Q N = 16 l/min
10 10
Q N = 10 l/min Q N = 10 l/min
5 Q N = 5 l/min 5 Q N = 5 l/min
0 0
-100 -80 -60 -40 -20 0 20 40 60 80 100 l [%] -100 -80 -60 -40 -20 0 20 40 60 80 100 l [%]

Note! All values were measured over two control edges. The
connections A and B were short-circuited.

www.wandfluh.com Illustrations are not binding Data subject to change 5/6 Edition: 21 18 1.10-88 E
Page 389