EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 E-220.A
An Eaton Brand
E
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 21,8 cSt (105 SUS) and 49° C (120° F)
Typical application pressure (all ports) 350 bar (5000 psi)
Cartridge fatigue pressure (infinite life) 350 bar (5000 psi)
Rated flow 76 L/min (20 USgpm)
Internal leakage 0.3 mL/min (5 drops/min) @ 85% of Pressure Setting
Cavity C-10–2
Standard housing materials Aluminum or steel
Temperature range -40° to 120°C (-40° to 248°F)
Fluids All general purpose hydraulic fluids such as:
MIL–H–5606, SAE 10, SAE 20, etc.
Filtration Cleanliness Code 18/16/13
Weight cartridge only 0,22 kg (0.48 lbs)
Seal kits – RV8 565803 Buna–N
566086 Viton
®
– RV8A 565806 Buna–N
889627 Viton
®
Viton is a registered trademark of E.I. DuPont
RV8-10 - Relief Valve
Poppet, direct acting, differential area
76 L/min (20 USgpm) • 350 bar (5000 psi)
Operation
This valve remains closed
from port 2 to 1 until the
predetermined setting has
been reached at port 2.
The pressure acts on the
differential area between the
seat and the seal diameter on
the poppet.
Features
Hardened and ground work-
ing parts. Low leakage poppet
design. High flow rate for a
compact cartridge.
Performance Data
Sectional View
Description
This is a fast, direct acting
differential area screw-in
cartridge relief valve. The valve
is ideal for the protection
against shock pressures that
can damage actuators.
A - 50 spring
B - 20 spring
C - 12 spring
0
1000
2000
3000
4000
20 40 60
0 5 10 15 20
140
210
280
Inlet pressure - psi
Inlet pressure - bar
0
0
Flow - L/min (21,8 cSt oil @ 49°C)
Flow - USgpm (105 SUS oil @ 120°F)
70
A
C
B
Pressure Override Curves
Cartridge only
Tank pressure = 0
2
1
2
1
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 E-221.A
An Eaton Brand
E
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
RV8-10 - Relief Valve
Poppet, direct acting, differential area
76 L/min (20 USgpm) • 350 bar (5000 psi)
1 Function
RV8 - Relief valve
2 Cage Seals
Blank - Single back-up ring
as shown
A - 1/2 thickness back-up ring
on each side of o-ring (for
cross port relief applications)
3 Size
10 - 10 size
4 Seal Material
Blank - Buna-N
V - Viton
®
5 Adjustment
C - Cap
F - Factory set
I - Internal
K - Knob
S - Screw
6 Valve Housing Material
Blank - Aluminum
S - Steel
7 Port Size
0 - Cartridge only
Code Port Size Housing Number
Aluminum Aluminum Steel
Light duty Fatigue rated Fatigue rated
3B 3/8" BSPP 02–175462 – –
2G 1/4" BSPP – 876702 02–175102
3G 3/8" BSPP – 876703 02–175103
6H SAE 6 – 876700 –
8H SAE 8 – 876701 –
6T SAE 6 566151 – 02–175100
8T SAE 8 – – 02–175101
See section J for housing.
8 Cracking Pressure Range
Note: Code based on pressure
in psi.
4 - 3,45-30 bar
(50-450 psi)
12 - 7-86 bar
(100-1250 psi)
25 - 17-175 bar
(250-2500 psi)
50 - 38-350 bar
(550-5000 psi)
9 Setting Pressure
Within ranges in
8
Blank - Normal factory
setting at approximate
mid-range. User requested
settings in 3,45 bar (50 psi)
steps, Coded as in the
following examples:
10 - 70 bar (1000 psi)
10.5 - 72,4 bar (1050 psi)
10 Special Features
00 - None
(Only required if valve has special
features, omitted if "00.")
SS - 316 Stainless Steel
external components
“C”Adjustm ent
19,1 (0.75) hex
53,0
(2.08)
Ø 15,82 (0.623)
“I”Adjustm ent
2
1
0.875"-14 Thd.
“S”Adjustm ent
“F”Adjustm ent
31,8
(1.25)
80,0
(3.13)
25,4 (1.0) hex
“K”Adjustm en
t
Ø 38,1 (1.50)
Model Code
RV8 (A) 10 (V)
*
(S)
** **
/
**
00
1 2 3 4 5 6 7 8 9 10
•
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)
Torque cartridge in housing
A - 47-54 Nm (35-40 ft. lbs)
S - 68-75 Nm (50-55 ft. lbs)
Installation Drawing (Steel)Cartridge Only
– – – – – –
63.5
(2.50)
2X 7.1
(0.28)
9.5
(0.37)
12.7
(0.5)
63.5
(2.50)
19.1
(0.75)
22.2
(0.87)
1
2
83.8
(3.30)
