EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 F-540.A
An Eaton Brand
F
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
1CEEC350 - Motion Control & Lock Valve
Pilot assisted relief
300 L/min (80 USgpm) • 270 bar (4000 psi)
Description
Motion control and lock valves
give static and dynamic control
by regulating the flow into
and out of hydraulic actuators.
When installed close to an
actuator, the valve can stop
runaway in the event of hose
burst. The valves also give dual
thermal and overload relief
protection.
A low pressure tank or charge
line may be connected to the T
port to provide a make-up flow
to either actuator port.
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
A system of check valves
allows crossline relief for
dynamic applications with the
optional make up facility to
compensate for any change in
system volume.
Features
These valves provide complete
circuit control and protection in
a single valve body, reducing
installation time and cost.
Smooth, safe performance of
dual direction actuators.
Pilot Ratio
3:1 Best suited for applications
where the load varies and
machine structure can induce
instability.
8:1 Best suited for applications
where the load remains relatively
constant.
Ratings and Specifications
Figures based on: Oil Temp = 40˚C Viscosity = 32 cSt (150 SUS)
Rated flow 300 L/min (80 USgpm)
Max relief pressure 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 materials Steel
Mounting position Line mounted
Weight 8.2 kg (18.0 lbs)
Seal kit SK635 (Nitrile)
SK635V (Viton
®
)
Filtration BS5540/4 Class 18/13 (25 micron nominal)
Temperature range -30° to +90°C (-22° to +194°F)
Internal leakage 4 ml/min (60 dpm)
Nominal viscosity range 5 to 500 cSt
Viton is a registered trademark of E.I. DuPont
Performance Data
Pressure Drop
C1
V1
C2
V2
T
Flow - US gpm
Flow - L/min
Pressure - psi
Pressure - bar
24
21
18
15
12
9
6
3
0
352
308
264
220
176
132
88
44
0
Free ow
Pilot open
0 50 100 150 200 250 300 350 400
0 25 50 75 100
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 F-541.A
An Eaton Brand
F
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
6
3
7
377
Dimensions
mm (inch)
1CEEC350 - Motion Control & Lock Valve
Pilot assisted relief
300 L/min (80 USgpm) • 270 bar (4000 psi)
Model Code
1
Basic Code
1CEEC350 - Cartridges
and body
2
Adjustment Means
F - Screw adjustment
For xed versions add setting in 10
bar increments to end of part number.
Subject to a ±10% tolerance.
2 3 4 51
1CEEC350
F 10W 35 S
Code Port Size Housing Number
Steel Single
10W 1 1/4" BSP valve & cyl port. 1/4" BSP brake port DXP16844-10W-S-377
3
Port Sizes - Bodied Valves Only
4
Pressure Range
@ 4.8 L/min
Note: Code based on pressure
in bar.
35 - 70-35 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 uid applications
made at 4.8 L/min
6
Pilot Ratio
3 - 3:1
8 - 8:1
7
Housing Material
377 - Steel
Complete Valve
1 1/4" Ports
Basic Code
1CEEC350
152.4
(6.00)
95.4
(3.76)
29.0 (1.41)
98.0 (3.86)
142.4
(5.61)
12.4
(0.49)
55.0
(2.17)
103.5 (4.07)
152.4 (6.00)
26.5
(1.04)
29.0 (1.14)
98.0 (3.86)
63.5
(2.50)
127.0 (5.00)
Check valve
Check valve
2 overcentre valves
1CE300-F-35-S-3
2 mounting holes
Ø12.5 (0.49) through
C2 C1
T T
V1 V2
– –
Note: Tightening torque of "F"
adjuster locknut - 20 to 25 Nm.
