EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009H-630.A
An Eaton Brand
H
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
0 20 40 60 80 100
0 100 200 300
400
300
200
100
0
30
25
20
15
10
5
A
B
C
D
Inlet flow rate, port 1, - USgpm (105 SUS oil @ 120°F)
Pressure drop - psi
Pressure drop - bar
Inlet flow rate, port 1, - L/min (21,8 cSt oil @ 49°C)
FDC1-20 - Flow Divider/Combiner
Line mounted, pressure compensated, spool type
Up to 141 L/min (37 USgpm) • 210 bar (3000 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.
Ratings and Specifications
Performance data is typical with fluid at 21,8 cST (105 SUS) and 49°C (120°F)
Typical application pressure (all ports) 210 bar (3000 psi)
Cartridge fatigue pressure (infinite life) 210 bar (3000 psi)
Rated inlet flow See model code
Fluids All general purpose hydraulic fluids such as
MIL–H–5606, SAE 10, SAE 20, etc.
Filtration Cleanliness code 18/16/13
Standard housing materials Aluminum
Weight cartridge only 2,6 kg. (5.75 lbs)
Seal kits 889639 (Buna–N)
889643 (Viton
®
)
Viton is a registered trademark of E.I. DuPont
Performance Data
Sectional View
Pressure Drop
Cartridge only
Flow Division
(See model code position 5)
A - 3* spool
B - 4* spool
C - 6* spool
D - 8* spool
2
1
3
1
2
3
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 H-631.A
An Eaton Brand
H
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
FDC1-20 - Flow Divider/Combiner
Line mounted, pressure compensated, spool type
Up to 141 L/min (37 USgpm) • 210 bar (3000 psi)
1
Function
FDC1 - Flow divider/combiner
2
Size
20 - 20 size
3
Seals
Blank - Buna-N
V - Viton
®
4
Port Size
16T - SAE 16 (light duty)
20T - SAE 20 (light duty)
(Available as a complete assembly only.)
6
Special Features
00 - None
(Only required if valve has special
features, omitted if “00”.)
50,8
(2.00)
178,0 (7.00)
152,4 (6.00)
12,7 (0.50)
31,7
(1.25)
31,7
(1.25)
31,7
(1.25)
2 3
101,6
(4.00)
76,2
(3.00)
12,7
(0.50)
104,0
(4.10)
76,2
(3.00)
44,4
(1.75)
44,4
(1.75)
Ø10,0 (0.406 thru) (3 plcs.)
63,5
(2.50)
1
Dimensions
mm (inch)
Model Code
2 3 41
FDC1 20 (V) ***
5
**
6
00
5
Flow Divisions (Ratios)
Code Flow Division% Max Inlet Flow
Port 3 Port 2 L/min (USgpm)
33 50 50 114,0 (30)
34 43 57 83,6 (22)
36 33 67 57,0 (15)
44 50 50 140,6 (37)
66 50 50 140,6 (37)
88 50 50 114,0 (30)
Notes: Minimum inlet flow
should not be less than 1/4
of maximum inlet flow for a
given code.
Torque cartridge in housing to
128–155 Nm (95–115 ft lbs)
Complete Valve
Basic Code
FDC1-20
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