Page 444 - Softbound_Edition_19_en

Proportional spool valve
Proportional spool valve Proportional spool valve

PERFORMANCE SPECIFICATIONS DIMENSIONS
Oil viscosity u = 30 mm /s 4/3-way spool valve (spring centring)
2
∆p = f (Q) Pressure drop / flow characteristic over 2 control Q = f (I) Volume flow signal characteristics over 2 control 227
edges edges L9 57.2 45
[Types: BCA-S, BC1-S, CA2-S, BDA-V, BD1-V, [Types: BCA-S, BC1-S, CA2-S, BDA-V, BD1-V,
DA2-V] DA2-V]
∆p [bar] Q [l/min]
L9 L15 100,~200 bar
K4128 K4241 60 20 80
200
40
160 50 bar
30 30 bar
120
20 80 20 bar
10 bar
10 40 a b 171
0 0 I [%]
0 20 40 60 80 100 120 140 160 180 200 Q [l/min] 20 30 40 50 60 70 80 90 100 MD=9Nm MD=5.5Nm

35
Q = f (I) Volume flow signal characteristics over 2 control Q = f (p) Leakage volume flow characteristics main stage 69
L
edges L15 / L17 per control edge
[Types: BCA-S, BC1-S, CA2-S, BDA-V, BD1-V, Q [ml] 29
DA2-V] 400 K2092
350 10 40 30 6.5
Q [l/min] 300 10.5 68
200 K4129 100,~200 bar 50 bar 250
200 27 93
160 30 bar 150 147
120 20 bar 100 Dimensions of the solenoid coil, refer to data sheet 1.1-183 and 1.1-184
10 bar 50
80 0
0 50 100 150 200 250 300 350 p [bar] 4/2-way with spring reset HYDRAULIC CONNECTION
40 149.4

0 93
20 30 40 50 60 70 80 90 100 I [%]
70.8
54
P
Q = f (p) Leakage volume flow pilot control stage X Y
L 12 A B 16.8
68 T To 1.5 46
Note! All values were measured over two control edges. The 9.7
@ 350 bar, pred 0 bar: 100 ml/min connections A and B were short-circuited.
@ 350 bar, pred 25 bar: 320 ml/min 20.8
a 171.4 48
12
INSTALLATION NOTES PARTS LIST

Mounting type Flange mounting Position Article Description
4 fixing holes for 10 239.7203 Screw plug
socket head screws M6 x 40 20 246.2146 Socket head screw M5 x 45 DIN 912
Mounting position Any, preferably horizontal
Tightening torque M = 13.5 Nm ± 10 %, quality min. 10.9 30 160.2120 O-ring ID 12,42 x 1,78 (NBR)
D 160.8124 O-ring ID 12,42 x 1,78 (FKM) 187
M = 10.5 Nm ± 10 %, quality 8.8: 40 160.2076 O-ring ID 7,65 x 1,78 (NBR)
D
160.8076 O-ring ID 7,65 x 1,78 (FKM)
◆ maximum tank pressure without 60 160.2052 O-ring ID 5,28 x 1,78 (NBR)
external connections: 80 bar 160.6052 O-ring ID 5,28 x 1,78 (FKM)
◆ maximum tank pressure and 80 173.1450 Distance plate BDP4 / 12
maximum pressure external
connections: 35 bar
Note! The length of the fixing screw depends on the base
material of the connection element. Wandfluh AG Postfach CH-3714 Frutigen
Tel. +41 33 672 72 72 Fax +41 33 672 72 12 [email protected]

www.wandfluh.com Illustrations are not binding Data subject to change 4/5 Edition: 21 18 1.10-3520 E www.wandfluh.com Illustrations are not binding Data subject to change 5/5 Edition: 21 18 1.10-3520 E
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