E K10 X
Proportional solenoid valve
5 ways / 3 positions
E K10 X
Proportional solenoid valve
5 ways / 3 positions
DESCRIPTION:
Walvoil launches the new EK10X cartridge valve, proportional solenoid operated, 5-way,
3-position, spool-type, with integrated Load Sensing port.
Load Sensing signal is connected to port 5 when spool shifts in working position.
OPERATION:
The EK10X valve is available with dierent spools and manual override options, which
increase the versatility of the product and ensure high ow capacity with reduced space
requirements.
Optimized through CFD analysis to reduce the pressure drop through the main paths, the
new EK valve series ensure excellent switching performance using the same coils of the
new EK10L valve.
This spool-type valve is available in SAE 10 size and it is particularly suitable for precise
and controlled lifting and lowering movements, where an actuator must be proportionally
operated in both directions and stopped in any position.
The best controllability is obtained when the valve is used together with a pressure com-
pensator to manage the ow rate.
EK10X valve is assembled with the Walvoil crimping solution, that ensures, at the same
time, more robustness while mounting them on HICs (Hydraulic Integrated Circuits) and a
reduction of of leakage due to spool clearance.
Working condition
Nominal ow
22 l/min
(5.8 US gpm)
Max. pressure
250 bar
(3600 psi)
Oil leakage
at 210 bar
(3050 psi)
200 cm
3
/min (12.2 in
3
/min)
Fluid mineral based oil
Viscosity 10-200 cSt
Max level of contamination 18/16/13 ISO4406
Fluid temperature
with NBR seals
from -20°C
(-4°F) to 80°C (176°F)
with FPM seals
from -20°C
(-4°F) to 100°C (212°F)
Environmental temp. for
working conditions
from -20°C
(-4°F) to 60°C (140°F)
Cavity SAE 10/5
Coils type (BC)
Power rating 26 W (12/24 VDC)
Connector types
ISO4400 - Deutsch DT
AMP-JPT - Flying leads
Note - For dierent conditions, please contact Walvoil Sales Department.
□ External zinc-plated and
corrosion-proof components
□ Hardened precision spool and
cage to ensure minimal wear,
minimum leakage and long life
□ Flow path optimized through
CFD analysis
□ Industry common cavities
□ Heavy duty polyurethane seals
□ Several types of coil connectors
and voltages
□ Manual override options
□ All ports can be fully
pressurized
□ Minimum current
threshold/dead band
□ Optimized linearity and
hysteresis
Technical specications and diagrams are measured with mineral oil of 46 cSt viscosity at
40°C (104°F) temperature.
Dimensions and hydraulic circuits
____________________________________________________________________
4
4
4
4
2
2
2
2
5
5
5
5
3
3
3
3
A
A
B
B
Spool 21
Spool 41
A B
A B
Spool 22
Spool 42
1
1
1
1
4122
4221
4122
4221
4122
4221
4122
4221
B
A
1
2
3
4
5
78.1
3.07
27
50 Nm
(
37 lbft)
23
5±1 Nm
(
3.68 lbft)
7/8-14 UNF
(SAE10)
114
4.48
142
5.60
Emergency types
“E”“D”
“N”
Emergency types
N
ET..L/NB
Without emergency
D
ET..L/DB
Push/pull type with detent
E
ET..L/EB
Push/Pull type without detent
D1WWCI06E - 1
nd
edition October 2021
Walvoil S.P.A. • 42124 Reggio Emilia • Italy • Via Adige, 13/D • Tel. +39.0522.932411 • Fax +39.0522.300984
www.walvoil.com
(psi)
(US gpm)
0
70
140
210
280
0
2.5
5
7.5
0 3.752.501.25 5 6.25
(psi)
(US gpm)
0 1000 2000 3000
0
2.5
5
(US gpm)
pressure drop vs flow
spool 42
(bar)
(l/min)
5->4
5->2
2->3
4->3
0
0 5 10 15 20 25
2
4
8
6
10
12
14
16
18
20
pressure compensation: inlet to work port
spool 42
(bar) (%)
(l/min)
0
0 50 100 150 200 250
5
10
15
20
25
35
30
Performance inline compensator, with 10.5 bar
spool 42
(l/min)
0
020 2040 4060 6080 80 100100
5
10
15
20
25
Top Coil
Bottom Coil
Flow
Pressure
Flow
Pressure
80% Max. Prop. Current
60% Max. Prop. Current
100% Max. Prop. Current
Flow
Current with 100 Hz Dither
(psi)
(US gpm)
0
70
140
210
280
0
2.5
5
7.5
0 3.752.501.25 5 6.25
(psi)
(US gpm)
0 1000 2000 3000
0
2.5
5
(US gpm)
pressure drop vs flow
spool 42
(bar)
(l/min)
5->4
5->2
2->3
4->3
0
0 5 10 15 20 25
2
4
8
6
10
12
14
16
18
20
pressure compensation: inlet to work port
spool 42
(bar)
(%)
(l/min)
0
0 50 100 150 200 250
5
10
15
20
25
35
30
Performance inline compensator, with 10.5 bar
spool 42
(l/min)
0
020 2040 4060 6080 80 100100
5
10
15
20
25
Top Coil
Bottom Coil
Flow
Pressure
Flow
Pressure
80% Max. Prop. Current
60% Max. Prop. Current
100% Max. Prop. Current
Flow
Current with 100 Hz Dither
(psi)
(US gpm)
0
70
140
210
280
0
2.5
5
7.5
0 3.752.501.25 5 6.25
(psi)
(US gpm)
0 1000 2000 3000
0
2.5
5
(US gpm)
pressure drop vs flow
spool 42
(bar)
(l/min)
5->4
5->2
2->3
4->3
0
0 5 10 15 20 25
2
4
8
6
10
12
14
16
18
20
pressure compensation: inlet to work port
spool 42
(bar)
(%)
(l/min)
0
0 50 100 150 200 250
5
10
15
20
25
35
30
Performance inline compensator, with 10.5 bar
spool 42
(l/min)
0
020 2040 4060 6080 80 100100
5
10
15
20
25
Top Coil
Bottom Coil
Flow
Pressure
Flow
Pressure
80% Max. Prop. Current
60% Max. Prop. Current
100% Max. Prop. Current
Flow
Current with 100 Hz Dither
Performance data
_________________________________________________________________________________________
Pressure drop vs. ow
(spool 42 type)
Pressure compensator
(inlet to work port - spool 42 type)
Flow vs. current
(with 10,5 bar/152 psi inline compensator - spool 42 type)