EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 F-210.A
An Eaton Brand
F
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
1CEL90 - Overcenter Valve
Counterbalance, pilot assisted relief with check
90 L/min (23 USgpm) • 280 bar (4000 psi)
Description
The 1CEL overcenter valve
performs all duties of a regular
overcenter but maintains a
counterbalance pressure to
provide dampening of cylin-
ders when there is a rapid
loss in stored pressure. This
counterbalance pressure
reduces as the pilot pressure
increases. Typical applications
include extension cylinders on
telescopic handlers where it
is important to have a smooth
operation when retracting
from full extension.
Operation
The check section allows free
ow and then locks the load
against movement. The pilot
assisted relief valve section
will give controlled movement
when pilot pressure is applied,
maintaining a counterbalance
pressure to prevent initial
pressure loss and therefore
instability. The total pressure
setting will normally be set
at 1.3 times the load induced
pressure. The counterbalance
pressure reduces as the pilot
pressure increases.
Features
Cartridge is economical and
ts simple cavity. Allows quick,
easy eld service - reduces
down time. Interchangeable
with pilot check valve of a
similar size.
Pilot Ratio
Primary 5.6:1
Secondary 0.7:1
Pressure Drop
Performance Data
Sectional View
Note: This valve has been
designed to eliminate
instability from exible boom
applications or where the load
induced pressure varies
greatly. To get the best
results, the settings should
be adjusted for each
application and then factory
set for production quantities.
Please contact our Technical
Department for more
information.
Ratings and Specifications
Figures based on: Oil Temp = 40˚C Viscosity = 32 cSt (150 SUS)
Rated flow 90 L/min (23 USgpm)
Maximum setting 380 bar (5510 psi)
Max load induced pressure 280 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 A12336 (See Section M)
Torque cartridge into cavity 60 Nm (44 ft. lbs.)
Weight 1CEL90 0.29 kg (0.63 lbs.)
1CEL95 1.35 kg (2.97 lbs.)
1CEEL95 2.10 kg (4.62 lbs.)
Seal kit number SK633 (Nitrile)
SK633V (Viton
®
)
Recommended filtration level BS5540/4 Class 18/13 (25 micron nominal)
Operating temperature -30° C to +90° C (-22° to +194°F)
Internal leakage 0.3 milliliters/min nominal (5 dpm)
Nominal viscosity range 5 to 500 cSt
Viton is a registered trademark of E.I. DuPont
Pilot (3)
Valve (2)
Cyl (1)
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 20 40 60 80 100
0 5 10 15 20 25
1
2
3
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 F-211.A
An Eaton Brand
F
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
1 Function
1CEL90 - Cartridge Only
1CEL95 - Cartridge and Body
1CEEL95 - Cartridges and
Dual Body
2 Adjustment Means
Counterbalance Setting
F - Screw Adjustment
N - Fixed - State pressure
setting required.
For xed versions add setting in 10
bar increments to end of part number.
Subject to a ±10% tolerance.
Dimensions
mm (inch)
Model Code
4 Pressure range
bar @ 4.8 L/min
Note: Code based on pressure
in bar.
20 - 170-350 Standard
220 (160/60)
30 - 210-380
Standard 280 (220/60).
Standard setting made at 4.8 L/min
1 2 3 4 5 6 7
6 High Pressure
Setting Bar
(10 bar increments)
150 to 230 bar (2175 to 3335 psi)
7 Counterbalance
Setting Bar
(10 bar increments)
20 to 170 bar (300 tp 250 psi)
1CEL90 - Overcenter Valve
Counterbalance, pilot assisted relief with check
90 L/min (23 USgpm) • 280 bar (4000 psi)
Cartridge only
Basic Code
1CEL90
1CE
***
F 30
5 Seals
S - Nitrile (for use with
most industrial hydraulic
coils)
SV - Viton (for high
temperature and most
special uid applications)
Note: Tightening torque of “F”
adjuster locknut - 20 to 25 Nm.
Dual Valve
1/2" Ports
Basic Code 1CEEL95
Internally Cross Piloted)
Single Valve
1/2" Ports
Basic Code
1CEL95
3 Port Sizes
Code Port Size Housing Number - Body Only
Aluminium Steel Aluminium Steel
Single Single Dual Dual
4W 1/2" BSP Valve & Cyl Port 1/4" BSP Pilot Port B13625 B13626 C13627 C13628
8T 1/2" SAE Valve & Cyl Port 1/4” SAE Pilot Port B10806 B10922 C10807 C11561
4W
S 220 60
Note: For applications above
210 bar, please consult our
technical department or use
the steel body option.
76.2
(3.0)
36.0
(1.42)
19.0
(0.75)
38.1
(1.50)
58.0
(2.28)
40.5
(1.59)
86.5 (3.41)
139.0
(5.47)
max
107.0 (4.21)
127.0 (5.0)
2 holes Ø11.0 (0.43) thro’
V1
V2
C1
C2
10.0
(0.39)
62.0
(2.44)
max
54.0
(2.13)
Hex socket adjust
5.0 A/F
17.0 A/F
32.0 A/F
M27 x 1.5-6g
Pilot (3)
Valve (2)
Cyl (1)
36.0
(1.42)
70.0
(2.76)
19.0
(0.75)
38.1
(1.50)
10.0
(0.39)
38.1
(1.50)
58.0
(2.28)
56.0 (2.20)
76.2 (3.0)
18.0
(0.71)
132.0
(5.2)
max
38.1
(1.50)
2 holes
Ø11.0 (0.43)
thro’
2
3
1
– – /
