EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 F-460.A
An Eaton Brand
F
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
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 Drop
Description
The 1SEL 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.
Ratings and Specifications
Figures based on: Oil Temp = 40˚C Viscosity = 32 cSt (150 SUS)
Rated flow 140 L/min (37 USgpm)
Max setting 380 bar (5310 psi)
Cartridge material Working parts hardened and ground steel.
External steel surfaces zinc plated.
Mounting position Unrestricted
Cavity number A20094-T17A
Torque cartridge into cavity 150 Nm (110 lbs ft)
Weight 1.2 kg (2.5 lbs)
Seal kit number SK1116 (Nitrile) SK1116V (Viton
®
)
Recommended filtration level BS5540/4 Class 18/13 (25 micron nominal)
Operation temperature -30° to +90°C (-22° to +194°F)
Leakage 0.3 milliliters/min nominal (5 dpm)
Nominal viscosity range 5 to 500 cSt
Performance Data
Sectional View
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 6.1:1
Secondary 0.5:1
1SEL140 - Overcenter Valve
Counterbalanced pilot assisted relief with check
140 L/min (37 USgpm) • 380 bar (5310 psi)
Flow - US gpm
Flow - L/min
Pressure - psi
Pressure - bar
725
580
435
290
145
0
50
40
30
20
10
0
0 40 80 120 160 200
0 10 20 30 40 50
Pilot open
Free ow
Pilot (3)
Valve (2)
Cyl (1)
1
2
3
Note: This valve has been
designed to eliminate insta-
bility from flexible boom
applications or where the load
induced pressure varies great-
ly. To get the best results, the
settings should be adjusted
for each application and then
factory set for porduction
quantities. Please contact
our Technical Department for
more information.
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 F-461.A
An Eaton Brand
F
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
Model Code
1SEL140 F 30 S 220 60
1 2 3 4 5 6
1 Basic Code
1SEL140 - Cartridge and 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.
3 Pressure Range
4.8 L/min
Note: Code based on pressure
in bar.
20 - 170-320 bar.
Std setting 220 bar
(160/60)
30 - 230-380 bar.
Std setting 280 bar
(220/60)
40 - 310-380 bar.
Std setting 350 bar
(290/60)
4 Seals
S - Nitrile (For use with most
industrial hydraulic oils)
SV - Viton (For high
temperature and most
special uid applications)
Dimensions
mm (inch)
1SEL140 - Overcenter Valve
Counterbalanced pilot assisted relief with check
140 L/min (37 USgpm) • 380 bar (5310 psi)
5 High Pressure
Setting Bar
(10 bar increments).
150 to 350 bar (2175 to
5000 psi)
6 Counterbalance
Setting Bar
(10 bar increments).
20 to 100 bar (300 to 1500 psi)
Cavity
Model A20094-T17A
Form Drill TD-17A
Form Reamer TR17A
Cartridge Only
Basic Code
1SEL140
5.00 A/F
Ø53.00 (2.08)
A/C
Screw in to
increase pressure
Screw out to
release load
17.00 A/F
46.00 A/F
M36 x 2.0
Thread
(P) 3
(V) 2
(C) 1
Ø44.10
(1.74)
25.00
(0.98)
57.00
(2.24)
112.50
(4.43)
125.00
(4.92)
max
46.00
(1.81)
L.S.
1SE#140-F
To t sun
cavity T-17A
– – /
Note: Tightening torque of "F"
adjuster locknut - 20 to 25 Nm
0.05 A
Thread and
all diameters
-A-
All seal lead-ins
to be smooth
and free of nicks
and sharp edges
0.00
0.00
Locating
shoulder
30º
45º
0.00
R0.80
1.6
(0.06)
1.6
(0.06)
1.6
(0.06)
2
1
3
R0.80
45º
45º
39.73 (1.564)
39.67 (1.562)
Ø
Ø44.45 (1.750)
36.58 (1.440)
36.53 (1.438)
Ø
37.29 (1.468)
37.34 (1.470)
Ø
23.00
(0.91)
min
depth
Ø14.27
(0.56)
Ø22.23
(0.88)
4.78
(0.19)
17.48
(0.69)
Min full
thread
22.23
(0.88)
36.53
(1.44)
46.34
(1.82)
46.22
(1.81)
56.74
(2.23)
M36 x 2.0-6H
Ø25.40 (1.00)
31.80 (1.252)
31.75 (1.250)
Ø
34.21 (1.346)
34.11 (1.343)
Ø
