Page 255 - Softbound_Edition_19_en

BH4x4
Spool valve

PERFORMANCE SPECIFICATIONS
Oil viscosity u = 30 mm /s
2
p = f (Q) Performance limits Q = f (Q) Leakage volume flow characteristics per control
L
p [bar] edge
350 K0098 Z40 Q [cm /min]
3
Z41/D41 60 K0263_2
300 Z42/D42
Z45/D45 50
200 40
100 Z43/D43 30
Z44/D44
20
0 10
0 5 10 15 20 Q [l/min] 0
100
50
150
0 J40/Z40/D41/D42/D44/D45 200 250 300 350 p [bar]
D43

Δp = f (Q) Pressure drop volume flow characteristics Volume flow direction
p [bar] Symbol P - A P - B P - T A - T B - T
30 K0099 6 Z40 5 5 - 2 2
25 5 D41 / Z41 5 5 - 2 2
20 4
15 3 2 D42 / Z42 5 5 - 2 2
10 1 D43 / Z43 4 4 6 1 1
5 D44 / Z44 4 4 3 1 1
0 D45 / Z45 4 4 - 2 2
0 5 10 15 20 Q [l/min]

DIMENSIONS PARTS LIST
Position Article Description
10 253.2000 Hand control head BHII
30 246.1126 Socket head screw M4 x 25 DIN 912
40 246.1161 Socket head screw M4 x 60 DIN 912
50 238.1100 Screw plug M10 x 1 DIN 7604A
239.1102 Screw plug
60 049.1100 Copper seal ring NG10 x 13.5 x 1.4 DIN7603
152 80 160.2052 O-ring ID 5,28 x 1,78 (NBR)
50
9.5 MD= 5.2Nm
60 Note! Screw plug 238.0201 for spring centred execution
5.2
6 Screw plug 239.2000 for detented execution
Pos. 60 only for screw plug 239.2000
35 38
32

40 10 80 30 ACTUATION
MD= 2.6Nm MD=2.6Nm
39 Actuation Hand lever
54 54 19 Actuation angle a = 5,7° / side
b
135 Actuation force F = 15 - 20 N
b

www.wandfluh.com Illustrations are not binding Data subject to change 3/4 Edition: 16 33 1.5-20 E
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