EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 F-280.A
An Eaton Brand
F
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
Ratings and Specifications
Figures based on: Oil Temp = 40°C Viscosity = 32 cSt (150 SUS)
Rated ow 140 L/min (37 USgpm)
Max relief setting 420 bar (6090 psi)
Max load induced pressure 340 bar (4930 psi)
Cartridge material Working parts hardened and ground steel.
External surfaces zinc plated.
Standard housing material Aluminum (up to 210 bar).
Add sux “377” for steel option.
Mounting position Unrestricted
Cavity number A20081
Torque cartridge into cavity 150 Nm (110 lbs ft)
Weight 1CE140 1.2 kg (2.5 lbs)
1CE145 (aluminium) 2.2 kg (4.5 lbs)
1CE145 (steel) 4.0 kg (8.8 lbs)
1CEE145 (aluminium) 2.9 kg (6.4 lbs)
1CEE145 (steel) 6.0 kg (13.2 lbs)
Seal kit number SK1108 (Nitrile)
SK1108V (Viton
®
)
Recommended filtration level BS5540/4 Class 18/13
(25 micron nominal)
Operating temperature
-30°C to +90°C
(-22° to +194°F)
Leakage 0.3 milliliters/min nominal (5 dpm)
Nominal viscosity range 5 to 500 cSt
Viton is a registered trademark of E.I. DuPont
1CE140 - Overcenter Valve
Pilot assisted relief with check
140 L/min (37 USgpm) • 340 bar (4930 psi)
Description
Overcenter valves give
static and dynamic control
of loads by regulating the
flow into and out of hydraulic
actuators. When installed
close to or within an actuator,
the overcenter valve will
stop runaway in the event
of hose burst and if open
center directional control
valves are used, will allow
thermal expansion relief of the
hydraulic fluid.
The overcenter cartridge is
ideal for mounting directly
into a cavity machined in the
body of the cylinder, motor or
rotary actuator. The cartridge
can also be mounted directly
to the ports via a specifically
machined body as part of a
Hydraulic Integrated Circuit
or single unit, or contained
within one of our standard line
bodies.
Single overcenter valves are
normally used when the load
is unidirectional, for example
an aerial platform or crane
and dual overcenter valves
are used for controlling loads
in both directional for motor
applications or for cylinders
going over center.
Operation
The check section allows
free flow into the actuator
then holds and locks the load
against movement. The pilot
assisted relief valve section
will give controlled movement
when pilot pressure is applied.
The relief section is normally
set to open at a pressure at
least 1.3 times the maximum
load induced pressure but the
pressure required to open the
valve and allow movement
depends on the pilot ratio of
the valve. For optimization
of load control and energy
usage, a choice of pilot ratios
is available.
The pressure required to open
the valve and start actuator
movement can be calculated
as follows:
Pilot Pressure =
(Relief Setting) - (Load Pressure)
Pilot Ratio
Features
Cartridge is economical and
fits simple cavity. Allows quick,
easy field service - reduces
down time. Interchangeable
with pilot check valve of a
similar size.
Pilot Ratio
4:1 Best suited for applications
where load varies and machine
structure can induce instability.
6:1 Best suited for applications
where the load remains
relatively constant.
Other options available upon
request.
Performance Data
Sectional View
Pressure Drop
Pilot (3)
Valve (2)
Cyl (1)
3
1
2
Flow - US gpm
Flow - L/min
Pressure - psi
Pressure - bar
725
580
435
290
145
0
Free ow
Pilot open
50
40
30
20
10
0
0 10 20 30 40 50
0 40 80 120 160 200
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 F-281.A
An Eaton Brand
F
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
Dimensions
mm (inch)
1CE140 - Overcenter Valve
Pilot assisted relief with check
140 L/min (37 USgpm) • 340 bar (4930 psi)
Model Code
1 Function
1CE140 - Cartridge only
1CE145 - Cartridge and body
1CEE145 - Cartridges and
body
2 Adjustment Means
F - Screw adjustment
1CE**** F 6W 40 S 4
Cartridge Only
Basic Code
1CE140
1 2 3 4 5 6
3 Port Sizes
4 Pressure Range
@ 4.8 l/min
Note: Code based on pressure
in bar.
20 - 140-250 bar.
Std setting 190 bar
30 - 220-330 bar.
Std setting 270 bar
40 - 310-420 bar.
Std setting 370 bar
Std setting made at 4.8 liter/min
5 Seals
S - Nitrile (For use with
most industrial hydraulic
oils)
SV - Viton (For high
temperature and most
special uid applications)
6 Pilot Ratio
4 - 4:1
6 - 6:1
Other ratios available upon request
Code Port Size Housing Number - Body Only
Aluminium Steel Aluminium Steel
Single Single Dual Dual
6W 3/4” BSP Valve & Cyl Port. 1/4” BSP Pilot Port B20105 B20106
8W 1” BSP Valve & Cyl Port. 1/4” BSP Pilot Port B20107 B20108 C20285 C20287
16T 1” SAE Valve & Cyl Port. 1/4” SAE Pilot Port B11946 B11947 C30105 C30106
Single Valve
3/4" , 1" Ports
Basic Code 1CE145
Dual Valve
1" Ports
Basic Code 1CEE145
Internally Cross Piloted
Note: For applications above
210 bar - please consult our
technical department or use
the steel body option
Cyl (1)
M38 x 2.0
Pilot (3)
Valve (2)
46.00 A/F
38.00 A/F
17.00 A/F
97.50
(3.84)
max
72.40
(2.85)
max
5.00 A/F
101.6
(4.0)
2 mounting
holes Ø11.0
(0.43) thro’
31.8
(1.25)
198.60
(7.82)
max
12.6
(0.5)
22.0
(0.87)
77.5
(3.05)
90.0 (3.54)
70.0
(2.76)
CRS
3
2
1
63.5
(2.5)
101.6
(4.0)
31.8
(1.25)
63.5
(2.50)
198.6
(7.82)
max
46.0
(1.81)
45.0
(1.77)
107.0 (4.21)
127.0 (5)
127.0 (5.0) CRS
152.0 (5.98)
82.6
(3.25)
46.0
(1.81)
2 mounting
holes Ø11,0
(0.43) through
V1
V2
C1
C2
– –
Note: Tightening torque
of “F” adjuster locknut -
20 to 25 Nm.
C1
V1
C2
V2