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Solenoid operated spool valve
Solenoid operated spool valve

Solenoid operated spool valve
NG4-Mini
Flange construction Wandfluh standard
◆ 4/2-way impulse valve execution detented
◆ 4/3-way with spring centred mid position x II 2 G Ex db IIC T6, T4
◆ 4/2-way with spring reset x II 2 D Ex tb III C T80 °C, T130 °C
◆ Q = 30 l/min x I M2 Ex db I Mb
max
◆ p = 350 bar Class I Division 1
max
Class I Zone 1

DESCRIPTION APPLICATION
Direct operated solenoid spool valve with 4 connections in 5 cham- These valves are suitable for applications in explosion-hazard
ber design. With the solenoids deenergised, the spool is held in the areas, open cast and also in mines. Spool valves are mainly used for
center position by the spring (4/3), or switched back to the offset controlling direction of movement and stopping of hydraulic cylin-
position (4/2). With the impulse spool (4/2), the spool is held in the ders and motors. The direction of movement is determined by the
switching position by the detent. The pressure tight encapsulated position of the spool and its symbol. Miniature values are used

Ex-protection solenoid coil prevents an explosion on the inside where both, reduced dimensions and weight are important.
penetrating to the outside as well as an ignitable surface tempe-

rature.

CERTIFICATES ACTUATION
Surface Mining Standard Z604 Actuation Switching solenoid, wet pin push type,
-25 °C to… -40 °C to… pressure tight
ATEX x x x x Execution MKY45 / 18x60 (data sheet 1.1-183)
IECEx x x x x MKU45 / 18x60 (data sheet 1.1-184)
Connection Cable gland for cable Ø 6,5…14 mm
CCC x x x x
EAC x x x x Attention! The UL execution is always supplied without cable
gland
Australia x x x x
MA x x
UL / CSA x x x
The certificates can be found on www.wandfluh.com

SYMBOL

AB3 AB1 AB2
A B A B A B
a b a b a b
a b a b a b
P T P T P T

ACB AC1 CB2
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

ADB AD1 DB2
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

www.wandfluh.com Illustrations are not binding Data subject to change 1/5 Edition: 21 18 1.3-24 E
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