Page 413 - Softbound_Edition_19_en

WDPPU10
Proportional spool valve

PERFORMANCE SPECIFICATIONS
Oil viscosity u = 30 mm /s
2
Q = f (p) Volume flow pressure characteristics Q = f (p) Volume flow pressure characteristics
I = I G I = I G
ACB-S ADB-V
Q [l/min] Q [l/min]
30 K4117 30 K4121
25 25
20 P - A 20 P - A
B - T
B - T
15 15
10 P - B 10 P - B
A - T
A - T
5 5
0 0
0 50 100 150 200 250 300 350 p [bar] 0 50 100 150 200 250 300 350 p [bar]

∆p = f (Q Pressure drop volume flow characteristics
I = I
G
p [bar]
20 K4116_1
15
10
5

0
0 5 10 15 20 25 Q [l/min]

Q = f (I) Volume flow adjustment characteristics Q = f (I) Volume flow adjustment characteristics
∆p = 10 bar ∆p = 10 bar
ACB-S ADB-V
Q [l/min] Q [l/min]
20 K4115 20 K4119
16 16
12 P - B P - A 12 P - B P - A
A - T B - T A - T B - T
8 8
4 4
0 0
-100 -80 -60 -40 -20 0 20 40 60 80 100 I [%] -100 -80 -60 -40 -20 0 20 40 60 80 100 I [%]

QL = f (Q) Leakage volume flow characteristics QL = f (Q) Leakage volume flow characteristics
per control edge per control edge
ACB-S ADB-V
Q [cm /min] Q [cm /min]
3
3
350 K4114 350 K4118_1
300 300
250 250
200 200
150 150
100 100
50 50
0 0
0 50 100 150 200 250 300 350 p [bar] 0 50 100 150 200 250 300 350 p [bar]

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 3/4 Edition: 19 34 1.10-2720 E
Page 413