EATON Screw-In Cartridge Valves E-VLSC-MC001-E November 2009 I-160.A
An Eaton Brand
I
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
Operation
With a pilot valve fitted the
valve will only open when flow
is allowed across the orifice in
the middle of the spool. Flow
passing across this orifice will
cause there to be a pressure
difference that acts over the
full area of the spool to move
it back against the spring that
biases it closed.
By controlling the pressure in
the spring chamber you can
control the pressure at which
the valve opens.
The vent port can be used as a
remote control port to provide
two pressure operation or a
dump facility.
Features
Very versatile in its application
using hardened and ground
spool and sleeve giving minimal
internal leakage and long life.
High flow and pressure rating
increases the variety of applica-
tions into which it can fit.
With small modifications to the
spool the valve can be used
in load sensing circuits or as
a compensator for by-pass
pressure compensated flow
controls.
Performance Data
LEV402 - Logic Element
Spool type with control cartridge cavity
Up to 400 L/min (100 USgpm) • 250 bar (5000
Sectional View
Description
For use in conjunction with
pilot valves to allow control of
larger flows. When used with
a 2/2 solenoid valve the combi-
nation allows control of flows
to 400 lts/min (100 US gpm).
With a pilot relief valve or a
proportional relief valve the
element becomes a high flow
pilot style ventable relief. With
a needle valve an on/off func-
tion is achieved.
The outlet flow would normally
go to tank because back pres-
sure will act on the pilot car-
tridge to increase the switch-
ing pressure.
Pressure Drop Curve
Vented pressure drop
Ratings and Specifications
Performance data is typical with fluid at 32,0 cST (150 SUS)
Figures based on oil temperature of 40˚ C and viscosity of 40 cSt
Rated Flow 400 liters/min (100 USgpm)
Maximum working pressure P1 and P2: 250 bar (3500 psi), P3: 210 bar (3000 psi)
Cartridge material Working parts hardened and ground steel.
External surfaces zinc plated
Body material Standard aluminum (up to 210 bar*). Add suffix '377' for steel option
Mounting position Unrestricted
Cavity number A21773 (see Section M)
Torque cartridge into cavity 150 Nm (110 lbs. ft.)
Weight LEV402: 0.70 kg (1.54 lbs), LEV452: 2.54 kg (5.6 lbs)
Seal kit number SK1232 (Nitrile), SK1232V (Viton
®
)
Viton is a registered trademark of E. I. DuPont
Recommended Filtration Level BS5540/4 Class 18/16/13 (25 micron nominal)
Operating temperature –30° to +90° C (–22° to 194° F)
Leakage Up to 350 ml/min
Nominal viscosity range 32 cSt
For applications above 210 bar, please consult our technical department or use the steel body option
1
3
2
Flow - L/min
Pressure - psi
Pressure - bar
Flow - US gpm
0 30 90 150 210 270 330 390
0 8 24 40 56 71 87 103
16
12
8
4
0
232
174
116
58
0
87
T (2)
P (1)
V (3)
EATON Screw-In Cartridge Valves E-VLSC-MC001-E November 2009 I-161.A
An Eaton Brand
I
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
1 Basic code
1LEV402 - Cartridge only
(Logic Element)
1LEV452 - Cartridge (Logic
Element) and body
Model Code
2 Seals
N - Nitrile (for use with most
industrial hydraulic oils)
V - Viton
®
(for high temperature
& most special uid applica-
tions)
1 2 3 4 5
10W
3 Spring
0.2 - 2 bar
4 Pilot cartridge
Blank - None
1DR2-P-40S - See pg E-100
PDR21AN*6** - See pg B-270
S207N - See pg A-280
LEV402 - Logic Element
Spool type with control cartridge cavity
Up to 400 L/min (100 USgpm) • 250 bar (5000 psi)
LEV4** N 0.2 1DR2-P-40S
Vent (3)
Tank (2)
Pressure (1)
76.8
(3.02)
Cavity A879
22.0
(0.87)
max
46.0 A/F
1-5/8-12UN-2A
32.00
(1.26)
63.50
(2.50)
20.00
(0.79)
32.00
(1.26)
63.50
(2.50)
1
2
50.00
(1.97)
127.0
(5.00)
101.60 (4.00)
88.00
(3.46)
14.00
(0.55)
76.00
(2.99)
32.00
(1.26)
60.00 (2.36)
101.6 (4.00)
Dimensions
mm (inch)
Torque cartridge in aluminum
housing 108-122 Nm
(80-90 ft lbs)
Installation Drawing
Basic Code: LEV452 1 1/4" 1/2" Ports
Cartridge Only
Basic Code: LEV402
– – – –
5 Port Size
Omit - Cartridge only
Code Port Size Aluminum Steel
10W 1-1/4" BSPP, 1/4" BSPP vent C23285 C23286
12W 1-1/2" BSPP, 1/4" BSPP vent C23278 C23283
20T 1-1/4" SAE, 1/4" SAE vent C23279 C23284
24T 1-1/2" SAE, 1/4" SAE vent C23287 C23288
