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A B Over-view BM4x3
a 0 b Solenoid operated spool valves Solenoid operated spool valve
P T
Solenoid operated spool valve
A B Size NG3-Mini
a NG3-Mini NG4-Mini NG4 ISO NG6 ISO NG10 ISO Flange construction
Symbol ◆ 4/2-way impulse execution, detented
P T
A B ◆ 4/3-way with spring centred mid position
a A B b WDMFA06-ALB-Z57 ◆ 4/2-way with spring reset
0
0
max
a P T b ◆ Q = 15 l/min

◆ p = 350 bar
P T max
A B B.4D40-S306 WDMFA06-ANB-Z57

a

A P T B

a A 0 B b B.4D40-S937 WDMFA06-AMB-Z57
a 0 b DESCRIPTION APPLICATION
A P T Direct operated solenoid spool valve with 4 connections in 5 cham- Spool valves are mainly used for controlling direction of movement
B
a P 0 T b ber design. Spool detented or with spring. With the solenoids de- and stopping of hydraulic cylinders and motors. Direction of

P T B.4D40-S1127 energised, the spool is held in the center position by the spring movement depends on the position of spool and its flow symbol.
A A B B
(4/3), or switched back to the offset position (4/2). With the impulse Switching performance limits and leakage of the valves must be
a a b
spool (4/2), the spool is held in the switching position by the detent. taken into account when designing the system. Solenoid operated
B T
A P P T WD.FA04-DAB WD.FB04-DAB
Precise spool fit, low leakage, long service life time. Spool made spool valves are suitable for machine tools and handling systems of
a 0 b
A B from hardened steel, body from high quality hydraulic cast steel. any kind. Miniature values are used where both, reduced
A P T B

a 0 b Wide range of standard and special voltages. dimensions and weight are important.
a b
P T
P T
A B
A B
a b
a b WDMFA06-AD3-Z57
B
A P T SYMBOL
P T
0
a b
A
P T B J30 Z30a Z30b
a b WDMFA06-CB3-Z57 A B A B A B
P T a a b b a a b b a a b
A B P T P T P T b
a A B b WDMFA06-LM3-Z57
b
a P T D31 Z31a Z31b
P T A B A B A B
A B a o b a b a b
a b a b a b
a b P T P T P T

P T
D32 Z32a Z32b
A B A B A B A B
a b a o b a b a b
a b a b a b
P T P T P T
P T

D33 Z33a Z33b
A B A B A B
a o b a b a b
a b a b a b
P T P T P T

D34 Z34a Z34b
A B A B A B
o b a
a b a b
a b a b a b
P T P T P T

D35 Z35a Z35b
A B A B A B
o b a
a b a b
a b a b a b
P T P T P T

Wandfluh AG Tel. +41 33 672 72 72 E-mail: sales@wandfluh.com llustrations not obligatory Data sheet no.
Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 1.2-05E 6/6 www.wandfluh.com Illustrations are not binding Data subject to change 1/4 Edition: 19 50 1.2-26 E
CH-3714 Frutigen Edition 21 26
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