EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 F-240.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 flow 120 L/min (32 USgpm)
Max relief setting 350 bar (5000 psi)
Max load induced pressure 270 bar (4000 psi)
Cartridge material Working parts hardened and ground steel.
External surfaces zinc plated.
Standard housing material Aluminum (up to 210 bar).
Add suffix “377” for steel option.
Mounting position Unrestricted
Cavity number A877 (See Section M)
Torque cartridge into cavity 100 Nm (74 lbs ft)
Weight 1CEB120 0.59 kg (1.30 lbs)
1CEB150 1.46 kg (3.20 lbs)
1CEEB150 2.58 kg (5.70 lbs)
Seal kit number SK417 (Nitrile)
SK417V (Viton
®
)
Recommended filtration level
BS5540/4 Class 18/13
(25 micron nominal)
Operating temperature -30° 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
1CEB120 - Overcenter Valve
Fully balanced, pilot assisted relief with check
120 L/min (32 USgpm). 270 bar (4000 psi)
Description
Overcenter valves give static
and dynamic control of loads
by supplying a counterbalance
pressure to the actuator. They
prevent runaway in the event
of hose burst and hold the
load with minimal leakage.
The pressure balanced valve is
unaffected by back pressure,
allowing service line reliefs
to operate and for the valve
to be used in regenerative or
proportional valve systems.
The overcenter valve should
be mounted either into, onto
or as close to the actuator as
possible to give maximum
protection.
Single overcenter valves
control unidirectional loads
such as in aerial platforms,
cranes or winches and dual
overcenters are suited to
bi-directional motion such as
wheel motor applications or
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
3:1 (standard) Best suited for
applications where load varies
and machine structure can
induce instability.
8:1 Best suited for applications
where the load remains
relatively constant.
Performance Data
Sectional View
Pressure Drop
Flow - US gpm
Flow - L/min
Pressure - psi
Pressure - bar
240
210
180
150
120
90
60
30
0
16
14
12
10
8
6
4
2
0
Free ow
Piloted open
0 30 60 90 120 150
0 8 16 24 32 40
Pilot (3)
Valve (2)
Cyl (1)
Vent
3
1
2
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 F-241.A
An Eaton Brand
F
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
Dimensions
mm (inch)
1CEB120 - Overcenter Valve
Fully balanced, pilot assisted relief with check
120 L/min (32 USgpm). 270 bar (4000 psi)
Model Code
1 Function
1CEB120 - Cartridge only
1CEB150 - Cartridge in body
1CEEB150 - Cartridges in
dual body
2
Adjustment Means
P - Leakproof screw
adjustment
Cartridge Only
Basic Code
ICEB120
1CE***** P 6W 35 S 3
1 2 3 4 5 6
3 Port Sizes
4 Pressure Range
@ 4.8 l/min
Note: Code based on pressure
in bar.
35 - 70-350 bar.
Std setting 210 bar
Std setting made at 4.8 L/min
5 Seals
S - Nitrile (For use with most
industrial hydraulic oils)
SV - Viton (For high
temperature and most
special fluid applications)
P - Polyurethane/Nitrile
(For arduous applications)
6 Pilot Ratio
3 - 3:1 (Standard)
8 - 8:1
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 B6898 B5544 C2543 C1200
12T 3/4" SAE Valve & Cyl Port. 1/4” SAE Pilot Port B8200 C10629 C16434
16T 1" SAE Valve & Cyl Port. 1/4” SAE Pilot Port B10708 B11814
Single Valve
3/4" , 1" Ports
Basic Code
1CEB150
Dual Valve
3/4" Ports
1CEEB150
Internally Cross Piloted
Note: Tightening torque of “F”
adjuster locknut - 20 to 25 Nm.
Note: For applications above
210 bar - please consult our
technical department or use
the steel body option
52.5
(2.07)
max
59.5
(2.34)
17.0 A/F
Vent
38.1 A/F
1-5/16-12 UN-2A
Pilot (3)
Valve (2)
Cyl 1)
37.0
(1.46)
37.0
(1.46)
101.6
(4.0)
25.4
(1.0)
50.8 (1.97)
83.0 (3.27)
13.0
(0.51)
76.0
(2.99)
10.6
(0.42)
2 holes Ø10.5
(0.41) thro’
44.0
(1.73)
154.0
(6.06)
max
1
2
3
112.0
(4.41)
76.2 (3.0)
37.0
(1.46)
92.0
(3.62)
20.6
(0.79)
50.0
(1.97)
164.5
(6.48)
max
8.0
(0.31)
82.6 (3.25)
101.6 (4.0)
2 holes
Ø9.0 (0.35)
thro’
51.6 (2.03)
V1
C1
V2
C2
– –
C1
V1
C2
V2
