EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 B-200.A
An Eaton Brand
B
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
EFV1-12-C - Proportional Valve
Proportional flow, normally closed spool
Up to 77 L/min (20.6 USgpm) • 210 bar (3000 psi)
Description
This is a 2 way 2 position,
pilot operated spool type,
normally closed, proportional
flow control screw in cartridge
valve. Ideal for speed control
and in conjunction with
pressure compensators to
provide proportional pressure
compensated flow control to
any actuator.
Operation
The valve is controlled by
current supplied to the coil. At
zero current, the valve is fully
closed from port 3 to port 2. At
1500 mA (12V coil) the valve is
considered fully open. This is
the maximum intended current
level for use in applications.
Port 1 is used for pressure
balancing the spool and
armature and must be blocked
in all cases. The maximum
intended pressure drop is 300
PSID. At pressure drops
above 300 PSID, almost no
increase in flow is obtained.
The intended flow direction is
from port 3 to port 2.
Operation of the valve with
flow from port 2 to port 3 will
produce flow vs current and
flow vs pressure drop curves
that are significantly different
from those obtained with flow
from port 3 to port 2. Since the
spool and armature are
pressure balanced, the
operating pressure does not
affect the operating
characteristics of the valve.
The operating point of the
valve is determined only by
current, pressure drop and
temperature.
Features
Hardened and ground working
parts to give long life with good
control; Compact design with
low pressure drop.IP69K Tough
coil compatibility, continuously
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 Flow rating “A” 55 L/min (14.3 USgpm)
Flow rating “B” 77 L/min (20.6 USgpm)
Internal leakage (fully closed) 77-483 cm
3
/min (5-30 in
3
/min) @ 210 bar (3000 PSID)
Nominal supply voltage 12/24 V
Current to fully close valve 1500-1600 mA (12V coil), 750-800 mA (24V coil)
Recommended dither 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 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
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)
Sectional View
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 B-201.A
An Eaton Brand
B
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
EFV1-12-C - Proportional Valve
Proportional flow, normally closed spool
Up to 77 L/min (20.6 USgpm) • 210 bar (3000 psi)
Note: To determine operating characteristics
for the flow rating selected, at a specific
differential pressure, first determine
maximum flow from upper curve at the
differential pressure value. This will be
the “100%” flow on the lower curve.
Parameters:
400 Hz PWM
Pressure Drop Curves
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 B-202.A
An Eaton Brand
B
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
EFV1-12-C - Proportional Valve
Proportional flow, normally closed spool
Up to 77 L/min (20.6 USgpm) • 210 bar (3000 psi)
Model Code
1
Function
EFV1 - 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 - 14.3 USgpm @ 300 PSID
B - 20.6 USgpm @ 300 PSID
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
EFV1 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
Blank - Cartridge only
A - Aluminum
S - Steel
– – – – – – – – –
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 B-203.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 steel housing
S - 136-149 Nm (100-110 ft lbs)
A - 108-122 Nm (80-90 ft lbs)
Note:
Port 1 is unused and must
be plugged.
Note:
EFV1-12 with DIN-43650
connector shown.
Installation Drawing
(Aluminum)
Cartridge Only
EFV1-12-C - Proportional Valve
Proportional flow, normally closed spool
Up to 77 L/min (20.6 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)
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)
