113
D1WWEI01E
Flow control valves
• Solenoid proportional type
• To be combined with an external compensator
• From SAE08 to SAE16 cavities
EC..T type
ow restrictor - 2 way
Technical speci cations and diagrams are measured with mineral oil of 46 cSt viscosity at 40°C (104°F) temperature.
EC08T EC10T EC12T EC16T
Nominal fl ow
(
1
)
with 5 bar
(72.5 psi) stand-by
with 10 bar
(145 psi) stand-by
35 l/min
(9.2 US gpm)
44 l/min
(11.6 US gpm)
44 l/min
(11.6 US gpm)
58 l/min
(15.3 US gpm)
55 l/min
(15.5 US gpm)
70 l/min
(18.5 US gpm)
70 l/min
(18.5 US gpm)
97 l/min
(25.6 US gpm)
Max. pressure
350 bar
(5100 psi)
Oil leakage
at 350 bar
(5100 psi)
0.25 cm
3
/min
(0.015 in
3
/min)
0.25 cm
3
/min
(0.015 in
3
/min)
0.25 cm
3
/min
(0.015 in
3
/min)
0.35 cm
3
/min
(0.021 in
3
/min)
Fluid mineral based oil
Viscosity 12-200 cSt
Max level of
contamination
18/16/13 ISO4406
Fluid temperature
with NBR seals
with FPM seals
from -20°C
(-4°F) to 80°C (176°F)
from -20°C (-4°F) to 100°C (212°F)
Environmental temp.
for working conditions
from -20°C
(-4°F) to 50°C (122°F)
Cavity SAE 08/2 SAE 10/2 SAE 12/2 SAE 16/2
Coil type (
2
) BH
Nominal voltages 12 VDC - 24 VDC ± 10%
Power rating
22.8 W (12 VDC)
22.5 W (24 VDC)
Max control current 12 V -> 1.70 A - 24 V -> 0.85 A (BH)
Dither frequency from 100 Hz to 120 Hz
Weight
0.275 kg
(0.61 lb)
0.310 kg
(0.68 lb)
0.390 kg
(0.86 lb)
0.490 kg
(1.08 lb)
NOTE - For diff erent conditions, please contact Walvoil Sales Dpt. - (
1
) Values are checked with cartridge in parallel with compensator
(
2
) For coils further features see from page 206.
•
Solenoid proportional type
•
To be combined with an external compensator
• From
EC..T type
ow restrictor - 2 way
1
2
Valve
type
A B
mm
in
mm
in
Nm
lbft
EC08T 28.1
1.11
83
3.27
27 50
37
EC10T 32.5
1.28
83
3.27
27 50
37
EC12T 45
1.77
82.5
3.25
32 85
63
EC16T 45.6
1.80
81
3.19
32 85
63
For dimensions with di erent type of emergency see page 213
1
2
A B
114
D1WWEI01E
Flow control valves
EC10T/A0NB
2 3
Ordering codes and description composition
______________________________________________________
1
EC..T type
1 Cartucce
TYPE CODE DESCRIPTION
SAE cavity 08/2
EC08T/A0NB
0EC08002056 Without emergency
EC08T/A0TB
0EC08002058 Screw type emergency
EC08T/A0QB
0EC08002073 “Push&twist” emergency
SAE cavity 10/2
EC10T/A0NB
0EC10002025 Without emergency
EC10T/A0TB
0EC10002027 Screw type emergency
EC10T/A0QB
0EC10002029 “Push&twist” emergency
SAE cavity 12/2
EC12T/A0NB
0EC12002018 Without emergency
EC12T/A0TB
0EC12002019 Screw type emergency
EC12T/A0QB
0EC12002020 “Push&twist” emergency
SAE cavity 16/2
EC16T/A0NB
0EC16002033 Without emergency
EC16T/A0TB
0EC16002035 Screw type emergency
EC16T/A0QB
0EC16002038 “Push&twist” emergency
2 Emergenze
TYPE DESCRIPTION
N Without emergency
T Screw type emergency
Q “Push&twist” emergency
3 Seals
TYPE DESCRIPTION
B NBR (Buna) Std conguration without addition
V For valve with FPM (Viton) o-ring seals, contact Sales
Dept.
4 Bobine
TYPE CODE DESCRIPTION
BH 12VDC 4SLD001200 Coil 12VDC-ISO4400
For complete coils list see from page 206
It is possible also combine coils BQP19
5 Valve body
TYPE CODE DESCRIPTION
SAE 08/2-G 3/8 3CC0820C11 Aluminium body for cavity 08 valve,
G3/8 std thread
SAE 10/2-G 3/8 3CC1020C11 Aluminium body for cavity 10 valve,
G3/8 std thread
SAE 12/2-G 1/2 3CC1220D11 Aluminium body for cavity 12 valve,
G1/2 std thread
SAE 16/2-G 3/4 3CC1620E11 Aluminium body for cavity 16 valve,
G3/4 std thread
Note: aluminium body can stand up to 210 bar
(3050 psi)
For steel bodies or dierent threading see from page 215
6 Connector
TYPE CODE DESCRIPTION
ISO4400
4CN1009995 Connector
For complete connectors list see from page 206
1
5
3
2
4
6
Flow restrictor - 2 way
115
D1WWEI01E
Flow control valves
___________________________________________________________________________________________
Rating diagrams
EC..T type
Flow restrictor - 2 way
0
80
160
240
320
400
(l/min)
0 10 20 30 40 50 60
(bar)
2->1 (60%)
2->1 (80%)
(US gpm)
20 4 6 8 10 12 14
0
1000
2000
3000
4000
5000
(psi)
Flow
Pressure
0
10
20
30
40
50
(l/min)
0 10 20 30 40 50 60
(bar)
2->1 (100%)
1->2 (0%)
(US gpm)
20 4 6 8 10 12 14
0
150
300
450
600
(psi)
Flow
Pressure
EC08T
pressure drop
EC10T
pressure drop
EC08T
pressure drop
EC10T
pressure drop
EC08T
ow regulating vs. % max. control current
EC10T
ow regulating vs. % max. control current
10020 40 60 800
(l/min)
20
40
60
80
0
0
5
10
15
20
Percent of max. Control current
Flow
(US gpm)
5 bar
(72.5 psi)
10 bar
(145 psi)
2->1 (100%)
1->2 (0%)
0
10
20
30
40
50
0 10 20 30 40 50 60 70 80
(l/min)
(bar)
2->1 (80%)
(US gpm)
0 4 8 12 16 20
Flow
Pressure
0
150
300
450
600
(psi)
2->1 (60%)
0
80
160
240
320
400
0 10 20 30 40 50 60 70 80
(l/min)
(bar)
(US gpm)
0
1000
2000
3000
4000
5000
(psi)
0 4 8 12 16 20
Flow
Pressure
0
0
15
30
45
60
20 40 60 80 100
(l/min)
0
3
9
12
15
6
(US gpm)
Percent of max. Control current
Flow
5 bar
(72.5 psi)
10 bar
(145 psi)
116
D1WWEI01E
Flow control valves
10020 40 60 800
0
(l/min)
80
60
40
20
100
8
0
16
24
5 bar
(72.5 psi)
10 bar
(145 psi)
(US gpm)
Percent of max. Control current
Flow
10020 40 60 800
0
(l/min)
120
90
60
30
6
0
12
18
24
30
5 bar
(72.5 psi)
10 bar
(145 psi)
Percent of max. Control current
Flow
(US gpm)
Rating diagrams
___________________________________________________________________________________________
EC12T
pressure drop
EC16T
pressure drop
EC12T
pressure drop
EC6T
pressure drop
EC12T
ow regulating vs. % max. control current
EC16T
ow regulating vs. % max. control current
0 20 40 60 80 100
(l/min)
(bar)
1->2 (0%)
2->1 (100%)
2->1 (80%)
0
10
20
30
40
50
(US gpm)
0 5 10 15 20
25
Flow
Pressure
0
150
300
450
600
(psi)
0 20 40 60 80 100
(l/min)
2->1 (60%)
0
80
160
240
320
400
(bar)
(US gpm)
0 5 10 15 20 25
Flow
Pressure
0
1000
2000
3000
4000
5000
(psi)
2->1 (100%)
1->2 (0%)
30 60 120900
(l/min)
150
0
10
20
30
40
50
(bar)
2010 300
(US gpm)
Pressure
Flow
0
150
300
450
600
(psi)
2->1 (60%)
2->1 (80%)
30 60 120900
(l/min)
150
0
80
160
240
320
400
(bar)
0
1000
2000
3000
4000
5000
(psi)
2010 300
(US gpm)
Pressure
Flow
EC..T type
Flow restrictor - 2 way