EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 F-140.A
An Eaton Brand
F
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
1CEL30 - Overcenter Valve
Counterbalance pilot assisted relief with check
30 L/min (8 USgpm) • 380 bar (5510 psi)
Description
The 1CEL overcenter valve
performs all duties of a regular
overcenter but maintains
a counterbalance pressure
to provide dampening of
cylinders 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
flow 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
fits simple cavity. Allows quick,
easy field service - reduces
down time. Interchangeable
with pilot check valve of a
similar size.
Pilot Ratio
Primary 4.3:1
Secondary 0.4:1
Ratings and Specifications
Performance data is typical with fluid at 32 cST (150 SUS)
Rated flow 30 L/min (8 USgpm)
Max setting 380 bar (5510 psi)
Internal leakage 0.3 ml/min (5 dpm)
Temperature range -30° to +90°C (-22° to +194°F)
Cavity A6610 (see Section M)
Torque cartridge into cavity 45 Nm (33 lbs ft)
Mounting position Unrestricted
Filtration BS5540/4 Class 18/13 (25 micron nominal)
Nominal viscosity range 5 to 500 cSt
Cartridge material Working parts hardened and ground steel.
External surfaces zinc plated.
Standard housing materials Aluminium up to 210 bar. Add suffix “377” for steel option.
Weight 0.15 kg (0.33 lbs)
Seal kit SK395 (Nitrile)
SK395V (Viton
®
)
Viton is a registered trademark of E.I. DuPont
Performance Data
Sectional View
Pressure Drop
Note
: This valve has been
designed to eliminate
instability from flexible boom
applications or where he
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.
Pilot (3)
Valve (2)
Cyl (1)
1
2
3
Flow - US gpm
Flow - L/min
Pressure - psi
Pressure - bar
750
600
450
300
150
0
50
40
30
20
10
0
0 10 20 30 40 50
0 2.5 5 7.5 10 12.5
Free ow
Pilot open
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 F-141.A
An Eaton Brand
F
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
1CEL30 - Overcenter Valve
Counterbalance pilot assisted relief with check
30 L/min (8 USgpm) • 380 bar (5510 psi)
Model Code
1
Function
1CEL30 - Cartridge only
1CEL35 - Cartridge and body
1CEEL34 - Cartridges and dual
body
2
Adjustment Means/
Counterbalance Setting
F - Screw adjustment
For fixed versions add setting in 10
bar increments to end of part number.
Subject to a ±10% tolerance.
2 3 4 51
1CE**** F 3W 30 S
Code Port Size Housing Number - Body Only
Aluminium Steel Aluminium Steel
Single Single Dual Dual
3W 3/8" BSP valve & cylinder port. 1/4" BSP pilot port B6743 B12823 B6836 B13803
6T 3/8" SAE valve & cylinder port. 1/4" SAE pilot port B10536 B10805
8T
1/2" SAE valve & cylinder port. 1/4" SAE pilot port B7884 B11811 B30237 B11812
3
Port Size
4
Pressure Range Bar
@ 4.8 L/min
Note: Code based on pressure
in bar.
20 - 170-300 bar.
Std setting 220 bar
30
- 240-370 bar.
Std setting 280 bar
40
- 270-380 bar.
Std setting 350 bar
Std setting made at 4.8 L/min
5
Seals
S - Nitrile
SV - Viton
6
High Pressure
Setting Bar
10 bar increments
150 to 310 bar
(2175 to 5000 psi)
7
Counterbalance
Setting Bar
10 bar increments
20 to 120 bar (300 to 1740 psi)
Dimensions
mm (inch)
6
230
7
50
Cartridge Only
Basic Code
1CEL30
Single Valve
3/8". 1/2" Ports
Basic Code
1CEL35
Dual Valve
3/8". 1/2" Ports
Basic Code 1CEEL34
(Internally Cross Piloted)
Note
: Tightening torque of “F”
adjuster locknut= 20-25 Nm.
Note: For applications above
210 bar - please consult our
technical department or use
the steel body option
57.4
(2.26)
42.4
(1.67)
Hex socket
adjust
4.0 A/F
17.0 A/F
25.4 A/F
Pilot (3)
Valve (2)
Cyl (1)
2 holes
Ø9.0 (0.35) thro’
26.5
(1.04)
60.0
(2.36)
16.0
(0.63)
31.8
(1.25)
9.0
(0.35)
42.0
(1.65)
11.5
(0.45)
9.0
(0.35)
117.4
(4.6)
32.0
(1.26)
63.5 (2.50)
2
3
1
26.5
(1.04)
2 holes Ø 9.0 (0.35) thro’
63.5
(2.5)
15.7
(0.62)
31.8
(1.25)
70.0 (2.76)
31.7
(1.25)
82.0 (3.23)
101.6 (4.00)
120.9
(4.76)
9.8
(0.39)
57.0
(2.24)
V1
V2
C1 C2
– – /
C1
V1
C2
V2
