EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 B-320.A
An Eaton Brand
B
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
EPRV2-8 - Proportional Valve
Proportional reducing/relief, spool
7.6 L/min (2 USgpm) • 35 bar (500 psi)
Description
This is a low pressure propor-
tional direct acting pressure
reducing valve with a reverse
relief screw in cartridge valve.
It is ideal for the control of
compensators on a pump or
brake and clutch systems on a
transmission circuit.
Operation
In the de-energized position,
pressure inlet port 2 is closed
and reduced pressure port 1 is
open to return port 3. As electri-
cal current is increased, port
2 opens to port 1 and port 3
closes, proportionally increasing
pressure at port 1.
If the pressure at port 1
exceeds the setting of the
valve, the spool will shift further
and relieve to port 3.
Features
Hardened and ground compo-
nents for accurate consistent
control and a long life. IP69K
Tough coil compatibility contin-
uously rated.
2
3
1
Ratings and Specifications
Performance data is typical with fluid at 21,8 cST (105 SUS) and 49°C (120°F)
Maximum inlet pressure 35 bar (500 psi)
Cartridge fatigue pressure (infinite life) 35 bar (500 psi)
Reduced pressure range 0-22 bar (0-320 psi)
Maximum operating flow 7,6 L/min (2 USgpm)
Temperature range -40° to 120°C (-40° to 248°F)
Cavity C-8-3
Fluids All general purpose hydraulic fluids such as: MIL-H-5606, SAE 10, SAE 20 etc.
Filtration Cleanliness code 18/16/13
Recommended PWM frequency 150 Hz
Hysterisis @ 150 Hz PWM 5%
Housing material (standard) Aluminum
Weight including coil 0,29 kg (.64 lbs)
Seal kit 02-179451 (Buna-N), 02-179452 (Viton
®
)
Viton is a registered trademark of E.I. DuPont
Performance Data
Sectional View
Amperage
increasing
Amperage
decreasing
Step response
psibar
Time - sec
Reduced pressure
Reduced pressure - psi
Reduced
pressure - bar
Amperage
200
400
600
0
42
28
14
0.1 0.2 0.3 0.40
1.2
0.8
16,8
(0.66)
31,8
(1.25)
51,3
(2.02)
40,6
(1.60)
35,8
(1.41)
7.9
(0.31)
15,8 (0.62)
h
22,2 (0.875)
0.750"-16 Thd.
Ø 14,2 (0.55
Ø 15,8 (0.62
2
0.4
.1 .2 .3 .4
.1 .3 .5 .7 .9
(12 VDC)
(24 VDC)
400
300
200
100
28
21
14
7
Regulated pressure vs amperage
2
3
1
(12 VDC)
Amperage
increasing
Amperage
decreasing
Step response
psibar
Time - sec
Reduced pressure
Red
uced pressure - psi
Reduced
pressure - bar
Amperage
200
400
600
0
42
28
14
0.1 0.2 0.3 0.40
1.2
0.8
16,8
(0.66)
31,8
(1.25)
51,3
(2.02)
40,6
(1.60)
35,8
(1.41)
7.9
(0.31)
15,8 (0.62)
h
22,2 (0.875)
0.750"-16 Thd.
Ø 14,2 (0.55
Ø 15,8 (0.62
2
0.4
.1 .2 .3 .4
.1 .3 .5 .7 .9
(12 VDC)
(24 VDC)
400
300
200
100
28
21
14
7
Regulated pressure vs amperage
2
3
1
(12 VDC)
Flow - L/min (21,8 cSt oil @ 49°C)
Flow - USgpm (105 SUS oil @ 120°F)
Pressure drop - psi
Pressure drop - bar
100
A - Port 1 to port 3 B - Port 2 to port 1
75
50
25
0
7
6
4
2
0
2 4 6 8
0.5 1.0 1.5 2.0
A
B
7
14
21
28
35
Flow - L/min (21,8 cSt oil @ 49°C)
Flow - USgpm (105 SUS oil @ 120°F)
Pressure - psi
Pressure - bar
8
100
200
300
400
2 1 0 21
84 4
500
Relieving mode Reducing mode
0
Pressure Drop Curves
Performance Curves
3 (T)
2 (P)
1 (RP)
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 B-321.A
An Eaton Brand
B
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
EPRV2-8 - Proportional Valve
Proportional reducing/relief, spool
7.6 L/min (2 USgpm) • 35 bar (500 psi)
Model Code
1
Function
EPRV2 - Proportional reducing/
relieving valve
2
Size
8 - 8 size
3
Seal Material
Blank - Buna-N
V - Viton
®
4
Valve Housing Material
Omit for cartridge only
A - Aluminum
Code Port Size Housing Number
Aluminum Single
0 Cartridge only
4T SAE 4 02-160741
6T SAE 6 02-160742
2G 1/4" BSPP 02-160739
3G 3/8" BSPP 02-160740
See section J for housing details.
5
Port Size
7
Connector Types
Blank - No coil
G - DIN 43650
Q - Spade Terminals
W - Flying Lead
N - Deutsch
Y - Amp JR
For coil part numbers and
dimensions see section C.
8
Coil
S - S series coils
9
Special Features
00 - None
Only required if valve has special
features, omitted if “00.”
1
EPRV2
2
8
3
(V)
4
(A)
7
*
9
00
6
Voltage Rating
00 - No coil
12D - 12VDC
24D - 24VDC
12B - 12VDC/w diode*
24B - 24VDC/w diode*
*Optional arc suppression diode.
Note: This valve uses the standard
S series coils, see section C for coil
part numbers and specifications.
6
***
5
**
8
*
•
WARNING
Maintain 5-8 Nm
(4-6 ft lbs) maximum
torque on valve tube nut.
Over tightening may cause
valve failure.
Dimensions
mm (inch)
Torque cartridge in aluminum
or steel housing 34-41 Nm
(25-30 ft lbs)
Installation DrawingCartridge Only
– – – – ––
19.1
(0.75)
15.5
(0.61)
51.3
(2.02)
67.3
(2.65)
2X7.14
(0.281)
63.5
(2.50)
56.74
(2.234)
3.4
(0.13)
2
1
3
29.8
(1.17)
19.1
(0.75)
Amperage
increasing
Amperage
decreasing
Step response
psibar
Time - sec
Reduced pressure
Reduced pressure - psi
Reduced
pressure - bar
Amperage
200
400
600
0
42
28
14
0.1 0.2 0.3 0.40
1.2
0.8
0.4
.1 .2 .3 .4
.1 .3 .5 .7 .9
(12 VDC)
(24 VDC)
400
300
200
100
28
21
14
7
Regulated pressure vs amperage
1
(12 VDC)
26,2
( 1.03 )
31,8
( 1.25 )
Valve is shown with “N” coil.
