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Solenoid operated spool valve
Solenoid operated spool valve Solenoid operated spool valve

DIMENSIONS Solenoid operated spool valve with soft switching
4/3-way valve (spring centred) 4/2-way valve (spring reset) NG4
Flange construction ISO 4401-02
A B A 130 ◆ 4/3-way with spring centred mid position
140 E 9.5 MD= 5.2Nm ◆ 4/2-way with spring reset
5.2 Q = 20 l/min
6 ◆ max
77 ◆ p = 350 bar
max
37 38
V = 32
DESCRIPTION APPLICATION
10 70 60 10 50 Direct operated solenoid spool valve with 4 connections in 5 cham- Normal solenoid spool valves switch very quickly. This can lead to
193
MD= 5Nm 18 50 57 8 ber design. With the solenoids deenergised, the spool is held in the shocks in the hydraulic system which can cause mechanical wear
133 center position by the spring (4/3), or switched back to the offset and have a negative effect on operation. The soft switching valves
HF1 HS1
43 44 position (4/2). The soft switching of the valve is achieved by means slow down and dampen the switching movements which benefits
30 30 of an optimum combination of the orifice and spool design. Precise the system. Optimum results can be achieved if all 4 connections
80 A
90 spool fit, low leakage, long service life time. Spool made from are connected and the valve is properly vented. Miniature values
hardened steel, valve body from high quality hydraulic cast steel. are used where both, reduced dimensions and weight are import-

77 Wide range of standard and special voltages. ant.
35
N =

10 SYMBOL

15 53 AB1 AB2
133 A B
E = Air bleed screw
Orifices in valve body influence the switching times a a b b a a b b
HYDRAULIC CONNECTION PARTS LIST P T
Position Article Description ACB AC1 CB2
28 10 206.2... V.E37 / 19 x 50 A B A B A B
14
260.5... N.S35 / 19 x 50 a 0 b a b
P 50 160.2052 O-ring ID 5,28 x 1,78 (NBR) a b a b
160.6052 O-ring ID 5,28 x 1,78 (FKM) P T P T P T
A B
14 27 60 160.2187 O-ring ID 18,72 x 2,62 (NBR) ADB AD1 DB2
T T0 70 154.2700 Knurled nut A B A B A B

80 253.7001 Push-button 0
a b a b
90 253.7000 Spindle a b a b
130 246.1007 Socket head screw zinc-coated blue M4 x 6 P T P T P T
DIN84 A
140 049.2040 Bonded seal ID 4,1 x 7,2 x 1
GENERAL SPECIFICATIONS HYDRAULIC SPECIFICATIONS
ACCESSORIES INSTALLATION NOTES
Designation 4/2-, 4/3-spool valve Working pressure p = 350 bar
Mating connector grey (A) Article no. 219.2001 Mounting type Flange mounting Construction Direct operated Tank pressure p max = 100 bar
T max
Mating connector black (B) Article no. 219.2002 3 fixing holes for Mounting Flange construction Maximum volume flow Q = 20 l/min, see characteristics
max
Mounting screws Data sheet 1.0-60 socket head screws M5 x 40 Nominal size NG4 according to ISO 4401-02 Leakage oil See characteristics
Mounting position Any, preferably horizontal
Threaded subplates Data sheet 2.9-10 Tightening torque Fixing screws M = 5,2 Nm (screw Actuation Switching solenoid Fluid Mineral oil, other fluid on request
D
Multi-station subplates Data sheet 2.9-50 quality 8.8, zinc coated) Ambient temperature -25…+70 °C Viscosity range 12 mm /s…320 mm /s
2
2
Horizontal mounting blocks Data sheet 2.9-90 M = 5 Nm knurled nut if > +50 °C, then no undervoltage is Temperature range -25…+70 °C (NBR)
D admissible
Technical explanations Data sheet 1.0-100 fluid -20…+70 °C (FKM)
Note! The length of the fixing screw depends on the base Weight 0,90 kg (1 solenoid) Contamination Class 18 / 16 / 13
Filtration Data sheet 1.1-50 material of the connection element. 1,25 kg (2 solenoids) efficiency
Relative duty factor Data sheet 1.1-430
MTTFd 150 years Filtration Required filtration grade ß 10…16 ≥ 75,
see data sheet 1.0-50
Wandfluh AG Postfach CH-3714 Frutigen
Tel. +41 33 672 72 72 Fax +41 33 672 72 12 sales@wandfluh.com
www.wandfluh.com Illustrations are not binding Data subject to change 4/4 Edition: 22 13 1.4-13 E www.wandfluh.com Illustrations are not binding Data subject to change 1/4 Edition: 22 09 1.4-23 E
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