EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009H-610.A
An Eaton Brand
H
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
2CFD50 - Flow Divider/Combiner
Pressure compensated, spool type
Up to 40 L/min (10.5 USgpm) • 350 bar (5000 psi)
Description
This range of flow divider/
combiner valves gives division
of input flow into two equal
parts and re-combination of
flow in the reverse direction.
Pressure compensation
ensures that whether dividing
or combining, equal flow is
maintained over a wide range
of pressure variation. A typical
use of these valves is to divide
a pump flow to operate two
actuators (which may be under
different load conditions and at
different pressures) and to
re-combine the return flows to
synchronize actuator
movement. Flow variation is
within ±10% with the
maximum variation of pressure
and inlet flow and under
normal conditions will be
significantly less.
Operation
Inlet flow passes through the
two matched orifices in the
spools, through the spools and
out of the radial holes in the
sleeve. The matched orifices
and the compensating springs
ensure that the flow is divided
equally, excess flow in either
direction causes the spool to
move and close the radial
holes in the sleeve until
equilibrium is restored. In the
reverse direction the spools
close together and regulate
the flow in through the radial
ports.
Features
One valve synchronizes in both
directions. Matched spools
give high accuracy under load
and pressure imbalance
conditions. Cartridge
construction gives versatility of
application. A valve may be
fitted into a line body, a
custom designed Hydraulic
Integrated Circuit or other
hydraulic equipment.
Ratings and Specifications
Figures based on oil temp at 40˚ and viscosity at 40 cSt
Rated flow Up to 40 L/min (10.5 USgpm)
Max pressure 350 bar (5000 psi)
Cartridge material All working parts hardened and ground steel.
Zinc plated external steel body
Body material Standard aluminum (up to 210 bar*)
add suffix “377” for steel option
Mounting position Unrestricted
Cavity number A12744 (See Section M)
Torque cartridge into cavity 34 Nm (25 lbs ft)
Weight 2CFD50 0.10 kg (0.23 lbs)
2CFD55 0.44 kg (0.98 lbs)
Seal kit SK1065 (Nitrile)
SK1065V (Viton
®
)
Recommended filtration level Up to 40 L/min (10.5 USgpm)
Operating temp -30˚ to +90˚C (-22˚ to +194˚F)
Nominal range 50 to 500 cSt
Viton is a registered trademark of E.I. DuPont
Performance DataSectional View
Pressure Drop
Note: When used on cylinders
size to suit the return flow
rate.
4
3
2
Outlet
(4)
Outlet
(2)
Inlet
(3)
Flow - US gpm
Flow - L/min
Pressure - psi
Pressure - bar
750
600
450
300
150
0
3.3-10
15-40
50
40
30
20
10
0
7-20
2-5
0 2.5 5 7.5 10
0 10 20 30 40
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 H-611.A
An Eaton Brand
H
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
2CFD50 - Flow Divider/Combiner
Pressure compensated, spool type
Up to 40 L/min (10.5 USgpm) • 350 bar (5000 psi)
Model Code
1
Function
2CFD50 - Cartridge only
2CFD55 - Cartridge and body
2 3 41
2CFD**
4W 40 S
Code Port Size Housing Number - Body Only
Aluminium Steel
Omit Cartridge only
3W 3/8" BSP inlet and outlet B19187
4W 1/2" BSP inlet and outlet B20816
8T-6T 1/2" SAE inlet and 3/8" SAE outlet B19185 B21935
See section J for housing details.
2
Port Size
3 Seals
S - Nitrile (for use with most
industrial hydraulic oils)
SV - Viton
(for high
temperature & most
special uid applications)
7
Capacity (Input)
5 - 2-5 L/min (0.5-1.3 USgpm)
10 - 3.3 - 10 L/min
(0.9-2.6 USgpm)
20 - 7-20 L/min (1.8-5.3 USgpm)
40 - 15-40 L/min
(4.0-10.5 USgpm)
Other terminations available
on request.
Dimensions
mm (inch)
Cartridge Only
Basic Code
2CFD50
Notes: Blocking one leg will
result in a large reduction in
flow from the other. Valves
with higher working pressures
are available. Contact main
office for details.
Notes: For applications
above 210 bar (3000 psi),
please consult our technical
department or use the steel
body option.
Complete Valve
3/8", 1/2" Ports
Basic Code
2CFD55
34.50
(1.36)
72.10 (2.84)
82.60 (3.25)
4
3
2
6.40
(0.25)
50.80
(2.00)
7.10
(0.28)
18.50
(0.73)
50.50 (1.99)
90 (3.54) approx
31.80
(1.25)
16.00
(0.63)
31.80
(1.25)
63.50
(2.50)
7.50
(0.30)
7/8”-14-UNF-2A
25.4 A/F
63.00
(2.48)
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