EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 D-320.A
An Eaton Brand
D
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
3CP2 - Series Check Valve
Check, manually operated
5.5-15 L/min (1.5-4 USgpm) • 210 bar (3000 psi)
Description
These cartridges permit a small
regulated flow to pass when
the hand knob is depressed. A
typical application would be on
an access platform to lower the
boom in the event of a power
failure.
Operation
The poppet seals flow from
ports 1 to 2, depressing the
hand knob lifts the poppet
from its seat permitting flow
the flow rate is determined by
the size of the orifice and the
pressure in the system,
various orifice sizes are
available.
Flow from port 2 to 1 should
be avoided - if required please
consult our technical
department.
Features
Cartridge design with
machined seats and precision
ground balls gives excellent
flow reseat characteristics.
Ratings and Specifications
Performance data is typical with fluid at 21,8 cST (105 SUS) and 49°C (120°F)
Max pressure 210 bar (3000 psi)
Rated flow .9 mm orifice 5.5 L/min (1.4 US gpm), 1.5 mm orifice 15 L/min (4 US gpm)
Internal leakage .3 ml/min nominal (5 dpm)
Temperature range -30° to 90°C (-22° to 194°F)
Cavity A879 (see Section M)
Torque cartridge into cavity 45 Nm (33 lbs ft)
Mounting position Unrestricted
Filtration BS5540/4 Class 18/13 (25 micron or better)
Nominal viscosity range 5 to 500 cSt
Cartridge material All steel construction. External parts electroless zinc plated.
Standard housing materials Aluminum
Weight .05 kg (.11 lbs)
Seal kit SK187 (Nitrile) SK187V (Viton
®
)
Viton is a registered trademark of E.I. DuPont
Performance Data
Sectional View
Pressure Drop
2
1
Flow - US gpm
Flow - L/min
Pressure - psi
Pressure - bar
2904
2541
2178
1815
1452
1089
726
363
0
200
175
150
125
100
75
50
25
0
0 2 4 6 8 10 12 14 16
1 2 3 4
1.5
0.9
1
2
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 D-321.A
An Eaton Brand
D
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
3CP2 - Series Check Valve
Check, manually operated
5.5-15 L/min (1.5-4 USgpm) • 210 bar (3000 psi)
Model Code
1
Function
3CP2 - Cartridge only
3CP25 - Cartridge and body
2 3 41
3CP2
3W 0.9 S
2
Port Size
3
Orice Size
0.9 - 0.9 mm
1.5 - 1.5 mm
4
Seals
S - Nitrile
SV- Viton
Code Port Size Housing Number
Aluminum Steel
0 Cartridge only
2W 1/4" BSP A1485
3W 3/8" BSP A1043 A18175
6T 3/8" SAE A15676 A14843
See Section J for housing details.
38.5
(1.52)
approx
27.00
(1.06)
approx
24.00 A/F
3/4 16UNF
1
2
50.0 (1.97)
2 holes
Ø6.8
(0.27) thro’
2
1
24.00
A/F
16.00
(0.63)
6.00
(0.24)
22.00
(0.87)
6.00
(0.24)
19.00 (0.75)
12.80
(0.50)
50.80
(2.00)
15.90
(0.63)
31.80 (1.25)
Dimensions
mm (inch)
Installation DrawingCartridge Only
– –
