EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 B-250.A
An Eaton Brand
B
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
EFV2-12-C - Proportional Valve
Proportional flow, normally closed spool
Up to 114 L/min (30 USgpm) • 210 bar (3000 psi)
Description
This is a three port pressure
compensated proportional
normally closed flow control
screw in cartridge valve. The
valve can be used as a prior-
ity or a restrictive style valve
allowing the valve to control
the outlet flow with the option
of the excess flow being used
for another system.
Operation
Current supplied to the coil
controls the valve. At zero cur-
rent, the valve is fully closed
from port 1 to port 3. At 1500
to 1600 mA (12V coil) the valve
is fully open.
The valve will regulate flow
out of port 3 regardless of
downstream system pressure.
As current is increased to the
solenoid the flow out of port 3
will increase.
Features
Hardened and ground working
parts to give long life with
good control; Compact design
with low pressure drop.IP69K
Tough coil compatibility, con-
tinuously rated.
1
3
2
Ratings and Specifications
Performance data is typical with fluid at 21,8 cST (105 SUS) and 49°C (120°F)
Typical application pressure 210 bar (3000 psi)
Cartridge endurance rating 1million cycles
Cartridge fatigue pressure (infinite life) 210 bar (3000 psi) NFPA rated
Rated flow “A” Spool-max regulated flow (by-pass mode): 57 L/min (15 USgpm)
max regulated flow (2 port mode): 53 L/min (14 USgpm)
max input flow (input flow): 114 L/min (30 USgpm)
“B” Spool-max regulated flow (by-pass mode): 38 L/min (10 USgpm)
max regulated flow (2 port mode): 31 L/min (8 USgpm)
max input flow (input flow): 114 L/min (30 USgpm)
Note: Max regulated flow may decrease slightly during compensation.
Internal leakage (fully closed) 240 cm
3
/min (15 in
3
/min) @ 3000 PSID
Nominal supply voltage 12/24 V
Current to fully open valve 1600 200 mA (12V coil), 800 100 mA (24V coil)
Current to fully close valve 350 100 mA (12V coil), 175 50 mA (24V coil)
Recommended PWM frequency 200-400 Hz
Coil resistance 4.7v /12V, 19.0 /24V
Mass Cartridge only 0,37 kg (0.82 lb), cartridge with coil and end nut 0,73 kg (1.62 lb)
Temperature range -30° to 90°C (-22° to 194°F)
Maximum oil temperature 120°C (248°F)
Maximum internal coil temperature 200°C (392°F)
Cavity C-12-3
Fluids All general purpose hydraulics fluids such as: MIL-H-5606, SAE 10, SAE 20, DTE 24, etc.
Filtration Cleanliness code 18/16/13
Housing material (standard) Aluminum or steel
Hysterisis 1.5 USgpm with 400Hz PWM driver
Seal kit 9900171-000 (Buna-N), 9900172-000 (Viton
®
)
Viton is a registered trademark of E.I. DuPont
Performance Data
Sectional View
1
2
3
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 B-251.A
An Eaton Brand
B
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
EFV2-12-C - Proportional Valve
Performance Curves
Flow is Pressure Drop
Flow vs Pressure Drop
Excess flow P1 to P2 (P3 to Atm)
Full current (1700 mA on a 12V Coil)
302520151050
400
350
300
250
200
150
100
50
0
Flow-US gpm
Pressure Drop psi
17.515.012.510.07.55.02.50.0
180
150
100
50
0
Flow-US gpm
Pressure Drop - psi
A
B
Flow vs Pressure Drop
Regulated flow P1 to P3 (P2 to Atm)
Full current (1700 mA on a 12V Coil)
Regulated Flow vs Pressure
Regular to Bypass
3500300025002000150010005000
A - 0.3 AMPS B - 0.6 AMPS C - 0.9 AMPS
D - 1.2 AMPS E - 1.5 AMPS F - 1.8 AMPS
G - 2.0 AMPS
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0.0
Flow-US gpm
Pressure - psi
A
B
C
D
E
G
F
0
2
4
6
8
10
12
14
16
18
0 200 400 600 800 1000 1200 1400 1600 1700
Current (mA)
Flow (GPM)
By-Pass Mode
By-Pass
Mode
2 Port
Mode
2 Port Mode
A
B
3500300025002000150010005000
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0.0
Flow-US gpm
A - 0.3 AMPS B - 0.6 AMPS C - 0.9 AMPS
D - 1.2 AMPS E - 1.5 AMPS F - 1.8 AMPS
G - 2.0 AMPS
Pressure - psi
A
B
C
D
E
F
G
Regulated Flow vs Pressure
Bypass to Regular
Flow vs Current
A - A spool
B - B spool
Note:
Pressure Compensation curves are shown for “B” spool valves.
A - A spool pressure drop
B - B spool pressure drop
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 B-252.A
An Eaton Brand
B
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
EFV2-12-C - Proportional Valve
Proportional flow, normally closed spool
Up to 114 L/min (30 USgpm) • 210 bar (3000 psi)
Model Code
1
Function
EFV2 - Electro proportional
flow control valve
2
Size
12 - 12 size
3
Seal Material
N - Buna-N
V - Viton
®
4
Logic
C - Normally closed
5
Flow Rating
A - 15 USgpm @ 180 PSID
B - 10 USgpm @ 180 PSID
See specifications
Code Port Size Housing Number
Aluminium Single Steel Single
0 Cartridge only
04G 1/2" BSPP 02-161817 02-169815
06G 3/4" BSPP 02-161816 02-169814
10T SAE 10 02-160642 02-161070
12T SAE 12 02-160646 02-169816
Note: Both the manifold and port plug are required.
See section J for housing details.
8
Port Size
1 2 3 4 5 6 7
EFV2 12 * C * * *
8
***
9
*****E**
10
00
9
Coil Series
E - E series coils
*These model digits will not be
stamped on the valve.
For coil part numbers and
dimensions see section C.
10
Special Features
00 - None
Only required when valve has special
features, omitted if “00”.
6
Manual Override Option
0 - No core tube
special features
S - Screw-in
7
Valve Housing Material
0 - Cartridge only
A - Aluminum
S - Steel
– – – – –
––– –
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 B-253.A
An Eaton Brand
B
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
Dimensions
mm (inch)
Torque cartridge in housing
S - 136-149 Nm (100-149 ft lbs)
A - 108-122 Nm (80-90 ft lbs)
Note: EFV2-12 with DIN-43650
connector shown.
Installation Drawing
(Aluminum)
Cartridge Only
EFV2-12-C - Proportional Valve
Proportional flow, normally closed spool
Up to 114 L/min (30 USgpm) • 210 bar (3000 psi)
44,2 (1.74)
1.26
32,8 (1.29)
19,1 (0.75)
86,3
(3.40)
1
2
3
1
2
3
68,6
(2.70)
64,0
(2.52)
