E .1/12.10
430
4/2 Solenoid Directional Valve
Cartridge Valve – 350 bar
SPOOL Type - Direct Operated
WKM08140Y-01
up to 25 l/min
up to 350 bar
When the solenoid coil is not energized,
there is free ow through the valve from
3 to 4 or 4 to 3 and from 2 to 1 or 1 to 2.
When the solenoid coil is energized,
there is free ow through the valve from
3 to 2 or 2 to 3 and from 4 to 1 or 1 to 4.
Operating pressure: max. 350 bar
Nominal ow: max. 25 l/min
Internal leakage: max. 150 cm³/min, at 250 bar
Media operating temperature range: -20 °C to +120 °C
Ambient temperature range: -20 °C to +60 °C
Type of voltage: DC solenoid, AC voltage is rectied
using a bridge rectier built into the coil
Current draw at 20 °C: 1.5 A at 12 V DC
0.8 A at 24 V DC
Minimum pull-in voltage: ±15% of nominal voltage at 60 °C
Coil duty rating: continuous up to 115% of nominal
voltage at 60 °C ambient temperature
Response time: Energized: approx. 40 ms
De-energized: approx. 30 ms
Fluids: Hydraulic oil to DIN 51524 Part 1 and 2
Viscosity: 10 mm²/s to 420 mm²/s is recommended
Filtration: Permissible contamination level
of the operating uid to ISO 4406
Class 21/19/16 or cleaner
Installation: Optional
Materials: Valve body: high tensile steel
Closing elements: hardened and
polished steel
Seals: NBR (standard)
FKM (optional)
back-up ring in PTFE
Cavity: 08140
Weight: Valve complete: 0.38 kg
Coil only: 0.19 kg
All surfaces zinc-plated and corrosion-proof
All valve parts made of high-strength steel with hardened and ground
components to ensure minimal wear and extended service life
Waterproof design standard
Wide variety of connectors available
Rigid design using one-piece body minimizes the effect of eccentricity and
maximizes reliability
Excellent switching performance by high power HYDAC solenoid
Low pressure drop by CFD optimized ow-path
E .1/12.10
431
(Directional spool valve, metric)
08140 = 4-way cavity
01 = standard model
Omission = no option
M = manual override
C = cartridge valve only
N = NBR
V = FKM
DC voltages
12 = 12 V DC
24 = 24 V DC
AC voltages (bridge rectier connector built into the coil)
24 = 24 V AC
115 = 115 V AC
230 = 230 V AC
other voltages on request
DG = plug to EN 175301-803
DL = with 2 ying leads, 457 mm long
DW = Weather Pack plug on 2 leadwires, 241 mm long
DT = AMP Junior Timer, 2-pole, radial
DK = KOSTAL threaded connection M27x1
AG = DIN connector to EN 175301-803
other connection types on request
Pressure drop
Flow rate
08140
Countersink 163463
(shank HE25)
Reamer (shank MK2) 163464
Measured at ν = 34 mm²/s
T
oil
= 46 °C
R08140-01X-01 394473 Steel, zinc-plated G 3/8
R08140-01X-02 393535 Steel, zinc-plated M 14x1.5
millimeter
Subject to technical modications
operating pressure
Flow rate
ν = 34 mm²/s, T
oil
= 46 °C
tting depth
tting depth
tting depth
millimeter
Subject to technical modications
0 5 10 15 20 25
l/min
0
4
8
12
bar
0
50
100
150
psi
2=>1 , 1=>2
2=>3 , 3=>2 ; 3=>4 , 4=>3
1=>4 , 4=>1
0 1 2 3 4 5 6
US gpm
WKM08140Y-01-C-N-24DG 3086566
WKM08140Y-01-C-N-230AG 3091791
Justus-von-Liebig-Str.
Tel: 0 68 97 /509-01
Telefax. 0 68 97 /509-598
E-Mail: utec@hydac.com
The information in this brochure relates
to the operating conditions and applica-
tions described.
For applications or operating conditi-
ons not described, please contact the
relevant technical department.
Subject to technical modications.
After loosening mounting
nut, coil can be rotated
through 360° and remo-
ved.
Manual override,
with HNBR-rubber cap
Torque 4
+2
Nm
24 hex
Torque 25
+5
Nm
