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Proportional spool valve
Proportional spool valve

PERFORMANCE SPECIFICATIONS
Oil viscosity u = 30 mm /s
2
Q = f (p) Volume flow pressure characteristics Q = f (I) Volume flow adjustment characteristics
I = I G Δp = 10 bar
ACB-S, AC1-S, CB2-S ACB-V, AC1-V, CB2-V, ADB-V, AD1-V, DB2-V
Q [l/min] Q [l/min]
25 K4053 14 K4052
20 Q N = 4 l/min 12 Q = 12 l/min
N
10
15 Q = 8 l/min 8 Q = 8 l/min
N
N
10 Q = 12 l/min 6 = 4 l/min
N
4
5 2 Q N
0 0
0 50 100 150 200 250 300 350 p [bar] -100 -80 -60 -40 -20 0 20 40 60 80 100 I [%]

Δp = f (Q) Pressure drop volume flow characteristics Q = f (p) Volume flow pressure characteristics
I = I G I = I G
ACB-S, AC1-S, CB2-S ACB-R, AC1-R, CB2-R
p [bar] Q = 4 l/min Q = 8 l/min Q [l/min]
50 K4051 N N 25 K1014
40 20
N
30 Q = 12 l/min 15 Q = 12 l/min
N
Q N = 8 l/min
20 10 Q N = 4 l/min
10 5
0 0
0 3 6 9 12 15 Q [l/min] 0 50 100 150 200 250 300 350 p [bar]

Q = f (I) Volume flow adjustment characteristics Δp = f (Q) Pressure drop volume flow characteristics
∆p = 10 bar I = I G
ACB-S, AC1-S, CB2-S ACB-R, AC1-R, CB2-R
Q [l/min] p [bar]
N
N
14 K4055 50 K4051 Q = 4 l/min Q = 8 l/min
12 Q = 12 l/min 40
N
10 N Q = 12 l/min
8 Q = 8 l/min 30
N
6 20
4 Q = 4 l/min
N
2 10
0 0
-100 -80 -60 -40 -20 0 20 40 60 80 100 I [%] 0 3 6 9 12 15 Q [l/min]

Q = f (p) Volume flow pressure characteristics Q = f (I) Volume flow adjustment characteristics
I = I G Δp = 10 bar
ACB-V, AC1-V, CB2-V, ADB-V, AD1-V, DB2-V ACB-R, AC1-R, CB2-R
Q [l/min] Q [l/min]
20 K4050 12 K1016
Q N = 12 l/min
10
15 8 Q N = 8 l/min
Q N = 12 l/min
10 6
Q = 8 l/min 4 Q N = 4 l/min
N
5
Q N = 4 l/min 2
0 0
0 50 100 150 200 250 300 350 p [bar] -100 -80 -60 -40 -20 0 20 40 60 80 100 l [%]

www.wandfluh.com Illustrations are not binding Data subject to change 3/5 Edition: 17 35 1.10-74 E
Page 363