EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 F-220.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 90 L/min (23 USgpm)
Maximum working pressure 350 bar (5000 psi)
Cartridge material Working parts hardened and ground steel.
External surfaces zinc plated.
Mounting position Unrestricted
Cavity number A12196 (See Section M)
Torque cartridge into cavity 60 Nm (44 ft. lbs.)
Weight 0.29 kg (0.63 lbs.)
Seal kit number SK634 (Nitrile)
SK634V (Viton
®
)
Recommended filtration level BS5540/4 Class 18/13 (25 micron nominal)
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
1CPBD90 - Overcenter Valve
Zero differential with check
90 L/min (23 USgpm) • 350 bar (5000 psi)
Application
Zero dierential overcenter
valves give static and dynamic
control of loads by supplying
a restriction to ow related
to the opening of the valve
created by the pilot pressure.
The valve is used in
conjunction with a remote
pilot source to provide hose
failure protection, load control
and load holding functions.
If over-pressure or shock
pressure protection is required
then a separate relief valve
should be used.
The drain line allows the
valve to be used in corrosive
atomspheres preventing the
ingestion of atomosphere
contamination.
Operation
The check section allows
free ow into the actuator
then holds and locks the load
against movement. By the
application of pilot pressure
to the pilot port the poppet
moves back against the main
spring opening the cylinder
port to the valve port. The
metering characteristic of the
valve is controlled by the rate
of the spring, the seat angle
and the pilot pressure applied.
Due to the balanced poppet
design load induced pressure
will not open the valve and
once open valve port pressure
will not increase the pilot
pressure required to keep the
valve open.
Pilot Ratios
The cartridge fits a simple
cavity allowing quick, easy
field service reducing down
time. Hardened poppet and
seat provide for long leak free
performance.
Pressure Drop
Performance Data
Sectional View
Flow - US gpm
Flow - L/min
Pressure - psi
Pressure - bar
725
580
435
290
145
0
50
40
30
20
10
0
0 20 40 60 80 100
0 5 10 15 20 25
Free ow
Piloted open
Pilot (3)
Valve (2)
Cyl (1)
Vent (4)
4
1
3
2
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 F-221.A
An Eaton Brand
F
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
Dimensions
mm (inch)
Model Code
3 Pilot Adjustment
Range @ 4.8 L/min
Note: Code based on pressure
in bar.
2 - 5 - 20 bar.
Standard setting: 10 bar
Standard setting made at 4.8 L/min
1 2 3 4
1CPBD90 F 2 P
4 Seals
S - Nitrile (for use with most
industrial hydraulic coils).
SV - Viton (for high
temperature and
most special uid
applications).
P - Polyurethane/Nitrile (for
arduous applications)
1 Function
1CPBD90 - Cartridge Only
1CPBD90 - Overcenter Valve
Zero differential with check
90 L/min (23 USgpm) • 350 bar (5000 psi)
2 Adjustment Means
F - Screw Adjustment
Cartridge Only
Basic Code
1CPBD90
Note: Tightening torque of “F”
adjuster locknut - 20 to 25 Nm
– –
Hex socket adjust
5.0 A/F
62.0
(2.4)
max
54.0
(2.13)
32.0 A/F
M27 x 1.5-6g
Vent (4)
Pilot (3)
Valve (2)
Cyl (1)
Line body available on request.
