EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 B-260.A
An Eaton Brand
B
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
EFV2-12-O - Proportional Valve
Proportional flow, normally open spool
Up to 114 L/min (30 USgpm) • 210 bar (3000 psi)
Description
This is a three port pressure
compensated normally open
proportional 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 con-
trols the valve. At zero current,
the valve is fully open from port
1 to port 3. At 1600 mA (12V
coil) the valve is fully closed.
The valve will regulate flow out
of port 3 regardless of down-
stream system pressure. As
current is increased to the sole-
noid the flow out of port 3 will
decrease.
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): 53 L/min (14 USgpm)
max regulated flow (2 port mode): 42 L/min (11 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) 77-483 cm
3
/min (5-30 in
3
/min) @ 3000 PSID
Nominal supply voltage 12/24 V
Current to fully open valve 350 100 mA (12V coil), 800 100 mA (24V coil)
Current to fully close valve 1600 200 mA (12V coil), 800 100 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-261.A
An Eaton Brand
B
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
EFV2-12-O - Proportional Valve
Performance Curves
Regulated Flow vs Pressure
Port 3 Pressure > Port 2 Pressure
Flow (GPM)
By-Pass Mode
By-Pass Mode
2 Port Mode
2 Port Mode
Current (Milli-amps)
Flow (GPM)
16
14
12
10
8
6
4
2
0
16
14
12
10
8
6
4
2
0
Current (Milli-amps)
Regulated Flow vs Pressure
Port 2 Pressure > Port 3 Pressure
Flow vs Current - A Spool
Parameters:
400 Hz PWM
Flow (GPM)
By-Pass Mode
By-Pass Mode
2 Port Mode
2 Port Mode
Current (Milli-amps)
Flow (GPM)
16
14
12
10
8
6
4
2
0
16
14
12
10
8
6
4
2
0
Current (Milli-amps)
Note:
Pressure Compensation curves are shown for “B” spool valves.
Flow vs Current - B Spool
GPM G
PM
Pressure Drop (PSI)
Pressure Drop (PSI)
302520151050
400
350
300
250
200
150
100
50
0
12.510.07.55.02.50.0
180
150
100
50
0
A
B
GPM G
PM
Pressure Drop (PSI)
Pressure Drop (PSI)
302520151050
400
350
300
250
200
150
100
50
0
12.510.07.55.02.50.0
180
150
100
50
0
A
B
Pressure Drop Port 1 to Port 2 Pressure Drop Port 1 to Port 3
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 B-262.A
An Eaton Brand
B
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
EFV2-12-O - Proportional Valve
Proportional flow, normally open 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
0 - Normally open
5
Flow Rating
A - 14 USgpm @ 180 PSID
B - 10 USgpm @ 180 PSID
See specifications
Code Port Size Housing Number
Aluminium Single Steel Single
0 Cartridge only
4G 1/2" BSPP 02-161817 02-169815
6G 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 * 0 * * *
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-263.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-O - Proportional Valve
Proportional flow, normally open 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)
