G-38
G
Where measurements are critical request certied drawings. We reserve the right to change specications without notice.
Eaton Hydraulic Screw-in Cartridge Valves (SiCV) E-VLSC-MC001
-E—January 20
18 www.eaton.com
Operation
Pressure on the valve port
2 causes the poppet to lift
against the spring force,
allowing the ow to the
cylinder port 3. Reverse ow
is prevented by the poppet
reseating.
Pressure applied to the pilot
port 1 will overcome the
cylinder port pressure and
lift the poppet from its seat,
allowing ow from the cylinder
to valve port.
Features
Hardened and ground poppet
gives excellent ow capability
for valve size, positive
sealing and long working
life. Cartridge construction
allows installation in actuators,
manifold blocks and Hydraulic
Integrated Circuits. Fits the
same cavity as the overcenter
valves of a similar size.
Pressure drop
Performance data
Sectional view
SPC2-8 - Check valve
Pilot-to-open, poppet type
19 L/min (5 USgpm) • 240 bar (3500 psi)
Description
Pilot check valves allow ow
to pass in one direction, with
a low pressure drop, then
prevent reverse ow until pilot
pressure is applied. There
are many applications for this
valve type, the most common
being to lock and hold a
cylinder, or another hydraulic
actuator, in position.
These valves are ideally
suited for tting directly into
a cylinder, giving economy of
installation, direct control of
cylinder movement and ease
of servicing.
A – CV6 16*P 0000 050 00
B – CV6 16*P 0000 020 00
C – CV6 16*P 0000 005 00
Flow
- USgpm (105 SUS oil @ 120° F)
Flow - L/min (21,8 cSt oil @ 49°C)
Pressure Drop - psi
Pressure Drop - bar
0
1
234 5
0
40
80
120
160
200
240
280
8
4
4812 160
0
A
B
C
D
16
12
1
3
2
2
1
3
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) 240 bar (3500 psi)
Cartrid ge fatigue pressure (infinite life) 240 bar (3500 psi)
Rated flow 19 L/min (5 USgpm)
Pilot ratio 3:1
Cracking pressure 15 - 1,0 bar
35 - 2,4 bar
65 - 4,5 bar
(15 psi)
(35 psi)
(65 psi)
In ternal leakage (all leak rates @ 240 bar (3500 psi)
Port 3 to 2
Port 2 to 1 unsealed piston*
5 drops/min. maximum at 240 bar (3500 psi)
140 cc/min. maximum,
*Unsealed piston only supplied wi th 15 psi spring option zero leakage with sealed piston
Temperature range –40° to 120°C (–4 0° to 248°F)
Cavity C-8-3
Fluids All general purpose hydraulic fluids such as
MIL - H-5606, SAE 10, SAE 20, etc
Recommended filtrationCleanliness code 18/16/13
Standard housing materials Aluminum or steel
Weight, cartridge only 0,07 kg (0.15 lbs.)
Seal kit 02-173326 (Buna-N)
02-173327 (Viton
®
)
Viton is a registered trademark of E.I. DuPont
G-39
G
Where measurements are critical request certied drawings. We reserve the right to change specications without notice.
Eaton Hydraulic Screw-in Cartridge Valves (SiCV) E-VLSC-MC001
-E—January 20
18 www.eaton.com
1
Basic code
SPC2 - Single pilot check valve
2
Size
8 - 8 size
3
Seals
Blank - Buna-N
V - Viton
U - Buna-N with no
piston seals
W - Viton with no piston
seals
Model code
SPC2-8 - Check valve
Pilot-to-open, poppet type
19 L/min (5 USgpm) • 240 bar (3500 psi)
6
Port size
2
3
1
22,1 (0.87) hex
0.750"–16 Thd.
Ø 15,8 (0.622)
Ø 14,2 (0.559)
8,5 (0.33)
41,4
(1.63)
7
Cracking pressure
15 - 1,0 bar (15 psi)
35 - 2,4 bar (35 psi)
65 - 4,5 bar (65 psi)
8
Special features
00 - None
(Only required if valve has
special features, omitted
if "00")
SS - 316 Stainless Steel
external components
4
Style
P - Poppet
5
Valve body material
Omit for cartridge only
A - Aluminum
S - Steel
Warning
Aluminum housings can be
used for pressures up to 210 bar
(3000 psi). Steel housings
must be used for operating
pressures above 210 bar
(3000 psi).
Dimensions
mm (inch)
ote:N Torque cartridge in
aluminum or steel housing to
34-41 Nm (25-30 ft lbs).
Installation drawing (Steel)Cartridge drawing
Basic code
SPC2-8
63.5
(2.50)
54.0
(2.13)
56.90
(2.240)
15.5
(0.61)
1
2
7. 1 4
(0.281)
19.1
(0.75)
66.68
(2.625)
3.3
(0.13)
2-Slots
9.1
(0.36)
29.7
(1.17)
19.1
(0.75)
3
Code Port size Housing number
Aluminum
fatigue rated
Steel
fatigue rated
4T SAE 4 02-160741 02-160745
6T SAE 6 02-16074202-160744
2G 1/4" BSPP 02-160739 02-160743
3G 3/8" BSPP 02-16074002-160746
00
SPC2 8 (X) P
(*)
** **
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