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WVYFA10
Spool valve WVYFA10

Types of pilot operation GENERAL SPECIFICATIONS ACTUATION
ti pi, xi pe, xe te, ae Designation 4/2-, 4/3-spool valve Solenoid spool valve direct operated
A B A B A B A B Data sheet 1.3-24
Mounting Flange construction
Nominal size NG10 according to ISO 4401-05 WDYFA04-AB1 / AB2 for 4/2-way AB1 / AB2
WDYFA04-AD1 / DB2 for other 4/2-way
Actuation Electrical WDYFA04-ADB for 4/3-way with spring centred mid position
Ambient temperature Operation as T6 WDYFA04-ADB for 4/2-way impulse execution detented
-25…+40 °C (L9)
a b a b a b a b
Operation as T4
P X Y T P X Y T P X Y T P X Y T -25…+90 °C (L9) CERTIFICATES
-25…+70 °C (L15 / L17)
-40…+70 °C (L15 / L17) Surface Mining Standard Z604
Weight 5,1 kg (1 solenoid) -25 °C to… -40 °C to…
TYPE CODE 6,8 kg (2 solenoids) ATEX x x x x
0,3 kg control plate IECEx x x x x
WVY F A10 - - - - / - # 0,17 kg spacer plate
Spool valve, pilot operated, explosion proof CCC x x x x
MTTFd 150 years EAC x x x x
Flange construction
Australia x x x x
International standard interface ISO NG10 MA x x
UL / CSA x x x
Designation of symbols acc. to table
The certificates can be found on www.wandfluh.com
Back pressure cartridge Standard
only symbols AEB and AFB
without back pressure cartridge o see notes HYDRAULIC SPECIFICATIONS INSTALLATION NOTES
Section symbols
Working pressure p = 350 bar Mounting type Flange mounting
Type of pilot operation: Tank pressure p max = 160 bar (type of pilot operation 4 fixing holes for
Control oil Supply (x) (x) and (y) internally ti T max socket head screws M6 x 40
and drain (y) via control plate: te, pi, ae and xi)
(x) and (y) externally te p T max = 100 bar (type of pilot operation ti, Mounting position Any, preferably horizontal
(x) internally (y) externally pi pe and xe) Tightening torque M = 13.5 Nm ± 10 %, quality min. 10.9
(x) externally (y) internally pe Pilot pressure p : 8…14 bar, see performance limits D
via mounting interface: p v min = 350 bar for connection X (control M = 10.5 Nm ± 10 %, quality 8.8:
(x) and (y) externally ae v max D
(x) internally (y) externally xi plate)
(x) externally (y) internally xe p v max = 200 bar for connection X ◆ maximum tank pressure without
(mounting interface) external connections: 80 bar
Nominal voltage U N 12 VDC G12 115 VAC R115 Pressure pilot oil drain minimum lower by p ◆ maximum tank pressure and
24 VDC G24 230 VAC R230 v min
Maximum volume flow Q = 160 l/min maximum pressure external
max
Ambient temperature up to: Leakage oil See characteristic and pilot valves connections: 35 bar
Nominal power P N 9 W L9 40 °C or 90 °C Fluid Mineral oil, other fluid on request Note! The length of the fixing screw depends on the base
15 W L15 70 °C material of the connection element.
2
2
17 W L17 70 °C (only UL / CSA) Viscosity range 12 mm /s…320 mm /s
Temperature range Operation as T6
Certification ATEX, IECEx, CCC, EAC fluid NBR -25…+40 °C (L9)
Australia AU UL / CSA UL FKM -20…+40 °C (L9)
MA MA
Operation as T4 SEALING MATERIAL
Sealing material NBR NBR -25…+70 °C (L9 or L15 / L17) NBR or FKM (Viton) as standard, choice in the type code
FKM (Viton) D1 FKM -20…+70 °C (L9 or L15 / L17)
NBR 872 -40…+70 °C (L15 / L17)
Dampening orifices
in control connections A and B without orifice Contamination Class 20 / 18 / 14 SURFACE TREATMENT
orifice Ø 0,5 mm Q 0,5 Provide for control pressure above 100 bar efficiency ◆ The main valve body, the distance plate, the screw plugs, the
Filtration Required filtration grade ß 10…16 ≥ 75, slip-on coil and the armature tube are zinc-nickel coated
Design index (subject to change) see data sheet 1.0-50 The pilot valve body is coated with a two component paint
1.9-38 ◆

www.wandfluh.com Illustrations are not binding Data subject to change 2/6 Edition: 21 18 1.9-38 E www.wandfluh.com Illustrations are not binding Data subject to change 3/6 Edition: 21 18 1.9-38 E
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