Page 394 - Softbound_Edition_19_en

Proportional spool valve
Proportional spool valve Proportional spool valve

Q = f (p) Volume flow pressure characteristics Q = f (p) Volume flow pressure characteristics Q = f (I) Volume flow adjustment characteristics Q = f (I) Volume flow adjustment characteristics
I = I G I = I G ∆p = 10 bar ∆p = 10 bar
Measured at 50 °C Measured at 50 °C Measured at 50 °C Measured at 50 °C
ADB-V, AD1-V, DB2-V ADB-V, AD1-V, DB2-V ACB-S, AC1-S, CB2-S ACB-S, AC1-S, CB2-S
Execution L15 / L17 Execution L9 Execution L15 / L17 Execution L9
Q [l/min] Q [l/min] Q [l/min] Q [l/min]
30 K4225 30 K4226 20 K4231 Q N = 20 l/min 20 K4232
25 25 18 18
16
16
20 Q N = 20 l/min 20 14 14 Q N = 14 l/min
12
12
15 Q N = 12 l/min 15 Q N = 16 l/min 10 Q N = 12 l/min 10
10 10 Q N = 10 l/min 8 6 Q N = 6 l/min 8 6 Q N = 7 l/min
5 Q N = 6 l/min 5 Q N = 5 l/min 4 4 Q N = 3 l/min
2 2
0 0 0 0
0 50 100 150 200 250 300 350 p [bar] 0 50 100 150 200 250 300 350 p [bar] -100 -80 -60 -40 -20 0 20 40 60 80 100 I [%] -100 -80 -60 -40 -20 0 20 40 60 80 100 I [%]

∆p = f (Q) Pressure drop volume flow characteristics ∆p = f (Q) Pressure drop volume flow characteristics Q = f (I) Volume flow adjustment characteristics Q = f (I) Volume flow adjustment characteristics
I = I I = I ∆p = 10 bar ∆p = 10 bar
G G
Measured at 50 °C Measured at 50 °C Measured at 50 °C Measured at 50 °C
ACB-S, AC1-S, CB2-S ACB-S, AC1-S, CB2-S ADB-V, AD1-V, DB2-V ADB-V, AD1-V, DB2-V
Execution L15 / L17 Execution L9 Execution L15 / L17 Execution L9

p [bar] Q N = 6 l/min Q N = 12 l/min p [bar] Q N = 3 l/min Q N = 7 l/min Q N = 14 l/min Q [l/min] Q [l/min]
30 K4227 30 K4228 20 K4233 Q N = 20 l/min 20 K4234
25 Q N = 20 l/min 25 18 18 Q N = 16 l/min
16
16
20 20 14 Q N = 12 l/min 14
12 12
15 15 10 10 Q N = 10 l/min
10 10 8 6 Q N = 6 l/min 8 6 Q N = 5 l/min
5 5 4 2 4 2
0 0 0 0
0 5 10 15 20 25 30 Q [l/min] 0 4 8 12 16 20 Q [l/min] -100 -80 -60 -40 -20 0 20 40 60 80 100 I [%] -100 -80 -60 -40 -20 0 20 40 60 80 100 I [%]

Note! All values were measured over two control edges. The
connections A and B were short-circuited.
∆p = f (Q) Pressure drop volume flow characteristics ∆p = f (Q) Pressure drop volume flow characteristics
I = I G I = I G
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
p [bar] Q N = 6 l/min Q N = 12 l/min Q N = 20 l/min p [bar] Q N = 5 l/min Q N = 10 l/min
30 K4229 30 K4230
25 25
20 20 Q N = 16 l/min
15 15
10 10
5 5
0 0
0 5 10 15 20 25 30 35 Q [l/min] 0 4 8 12 16 20 Q [l/min]

www.wandfluh.com Illustrations are not binding Data subject to change 4/6 Edition: 21 18 1.10-88S E www.wandfluh.com Illustrations are not binding Data subject to change 5/6 Edition: 21 18 1.10-88S E
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