EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009H-340.A
An Eaton Brand
H
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
Ratings and Specifications
Performance data is typical with fluid at 40 cSt and 40°C
Maximum pressure 350 bar (5000 psi)
Rated inlet flow 80 L/min (20 USgpm)
Temperature range -30° to 120°C (-22° to 248°F))
Cavity A7447 (See Section M)
Mounting position Unrestricted
Torque cartridge into cavity 75 Nm (55 lbs ft)
Fluids All general purpose hydraulic fluids such as:
MIL-H-5606, SAE 10, SAE 20 etc.
Filtration BS5540/4 Class
18/16/13
(25 micron nominal)
Nominal viscosity 32 cSt
Standard housing material Standard aluminum (up to 210 bar),
add suffix "377" for steel option
Cartridge material Working parts hardened and ground steel.
Zinc plated body
Weight cartridge only 0,2 kg (0.4 lbs)
Seal kit SK578 (Nitrile), SK578V (Viton
®
)
Viton is a registered trademark of E.I. DuPont
2CR80 - Flow Restrictor Valve
Needle with free reverse flow check
80 L/min (20 USgpm) • 350 bar (5000 psi)
Operation
Rotation of the adjustment
screw varies the valve opening
to give a flow path approximately
proportional to the turns of the
screw. The check valve allows
free flow in one direction.
Pressure Drop
Features
All steel construction with
hardened and ground
adjustment needle. Cartridge
construction for versatility in
applications. Sealed adjuster
for leak-free adjustment..
Description
The cartridge restrictor valve
range can be set and locked to
restrict flow in one direction.
A typical use is the speed
control of cylinder or other
actuators. The free flow check
allows for meter-in or meter-out
actuator control.
Performance Data
Sectional View
1
2
Flow - L/min
Pressure - psi
Pressure - bar
Flow - US gpm
0 20 40 60 80
0 5.3 10.6 15.9 21.2
60
50
40
30
20
10
0
870
725
580
435
290
145
0
Free ow
Adjuster fully in
Flow - L/min
Pressure - psi
Pressure - bar
Flow - US gpm
0 20 40 60 80
0 5.3 10.6 15.9 21.2
160
140
120
100
80
60
40
20
0
2320
2030
1740
1450
1160
870
580
290
0
Pressure drop
per turn from
closed
4
3
5
6
7
8
2
1
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 H-341.A
An Eaton Brand
H
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
3
Port Size
2CR80 - Flow Restrictor Valve
Needle with free reverse flow check
80 L/min (20 USgpm) • 350 bar (5000 psi)
Code Port Size Housing Number
Aluminium Steel
0 Cartridge only
4W 1/2” BSPP B7418 B13663
8T 1/2” SAE B10712 B11565
1
Function
2CR80 - Cartridge only
2CR85 - Cartridge and body
2
Adjustment
P - Leakproof screw
R - Handknob
See page H-6 for dimensions.
Model Code
2 31
2CR8* P 4W
4
S
4
Seals
S - Nitrile (for use with most
industrial hydraulic oils)
SV - Viton
®
(for high
temperature & most
special uid applications)
Dimensions
mm (inch)
Cartridge Only
Basic Code 2CR80
Complete Valve
Basic Code 2CR85
– –
31.0
(1.22)
47.0
(1.85)
4.0 A/F
32 A/F
M.27.0 x 2.0
thread
124.5
(4.09)
max
9.0
(0.35)
57.0
(2.24)
19.0
(0.75)
38.1
(1.50)
28.5
(1.12)
75.0
(2.95)
63.5 (2.50)
53.0 (2.09)
25.5
(1.00)
2 holes
Ø11.0 (0.43)
thro’
2
1
