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

TYPE CODE PERFORMANCE SPECIFICATIONS
2
WD Z F A04 - - - / / - # Oil viscosity u = 30 mm /s
Spool valve direct operated p = f (Q) Performance limits 100 Ω p = f (Q) Performance limits 152 Ω
Explosion proof execution Ex ia p [bar] AB_/ACB ADB AB3 p [bar] AB_ / ACB AB3
350 K1181 350 K4208 ADB
Flange construction 300 300
250 250
Mounting interface according to Wandfluh standard, NG4-Mini 200 200
150 150
Designation of symbols acc. to table 100 100
50 50
Spool specification Standard 0 0
Low Leakage x 0 4 8 12 16 20 Q [l/min] 0 4 8 12 16 20 Q [l/min]

Coil resistance 100 Ω 100
152 Ω 152
Δp = f (Q) Pressure drop volume flow characteristic Q = f (p) Leakage volume flow characteristic
L
Equipment group I (Mining) Z319 only in combination with coil resistance 100 Ω P → T
II (Surface) T6
p [bar] Q [cm /min] Standard
3
Connection execution D 50 K1182 80 K1183
K 40
60
Sealing material NBR 30
FKM (Viton) D1 20 40
10 20
Design index (subject to change)
1.3-28 0 0
0 4 8 12 16 20 Q [l/min] 0 50 100 150 200 250 300 350 p [bar]
GENERAL SPECIFICATIONS ELECTRICAL SPECIFICATIONS

3
Designation 4/2-, 4/3-spool valve Protection class IP65 Q [cm /min] Low leakage
Construction Direct operated Relative duty factor Continuous operation Attention! If, because of the given operating conditions, during the 80
switching process volume flows occur which exceed
Mounting Flange construction Switching frequency 1'800 / h the power limit of the valve, these have to be limited by 60
Nominal size NG4-Mini according to Wandfluh Service life time 10 (number of switching cycles, a throttle or an orifice in connection P. 40
7
standard theoretically) In case of a continuous flow through, the throttle or
Actuation Ex-protection switching solenoid Voltage tolerance ± 10 % with regard to nominal voltage orifice, depending on the system behaviour, an 20
additional heating-up of the valve is possible. This has
Ambient temperature -25…+45 °C (operation as T6) Limiting current at I = 90 mA (100 Ω execuiton) 0
min to be appropriately taken into account by the user. p [bar]
-25…+60 °C (operation as T1…T5) 50 °C I = 64 mA (152 Ω execuiton) 0 50 100 150 200 250 300 350
min
Weight 2,45 kg (1 solenoid) Temperature class T1…T6
4,65 kg (2 solenoids) Coil resistance 100 Ω, 152 Ω
MTTFd 150 years Minimum power P = 0,81 W (100 Ω execution) ACCESSORIES MANUAL OVERRIDE
min
consumption P = 0,62 W (152 Ω execution) HB4,5 as standard
min Fixing screws Data sheet 1.0-60
HYDRAULIC SPECIFICATIONS Note! Other electrical specifications, recommended power Threaded subplates Data sheet 2.9-05
supply and safety-related limits see data sheet 1.1-185
Working pressure p = 350 bar Multi-station subplates Data sheet 2.9-45
max
Tank pressure p = 200 bar Horizontal mounting blocks Data sheet 2.9-85
T max
Maximum volume flow Q = 20 l/min, see characteristics Technical explanations Data sheet 1.0-100 SEALING MATERIAL
max
Leakage oil See characteristics Filtration Data sheet 1.0-50 NBR or FKM (Viton) as standard, choice in the type code
Fluid Mineral oil, other fluid on request Relative duty factor Data sheet 1.1-430
Viscosity range 12 mm /s…320 mm /s
2
2
Temperature range -25…+45 °C (operation as T6, NBR)
fluid -20…+45 °C (operation as T6, FKM) STANDARDS SURFACE TREATMENT
-25…+60 °C (operation as T1…T5, NBR) Explosion protection Directive 2014 / 34 / EU (ATEX) ◆ The valve body is painted with a two component paint
-20…+60 °C (operation as T1…T5, FKM) ◆ The armature tube, the slip-on coil and the plug screw are
Contamination Class 20 / 18 / 14 Mounting interface Wandfluh standard zinc-nickel coated
efficiency Protection class EN 60 529
Filtration Required filtration grade ß 10…16 ≥ 75, Contamination ISO 4406
see data sheet 1.0-50 efficiency

www.wandfluh.com Illustrations are not binding Data subject to change 2/4 Edition: 19 26 1.3-28 E www.wandfluh.com Illustrations are not binding Data subject to change 3/4 Edition: 19 26 1.3-28 E
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