EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 D-560.A
An Eaton Brand
D
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
1RDS702 - Pilot to Shift Valve
Pilot to shift directional valve
80 L/min (20 USgpm) • 420 bar (6090 psi)
Description
This valve provides a means
of interrupting a pressure
line when a predetermined
pilot pressure is reached in
a normally open or normally
closed form.
The valve can be used in any
pilot or small flow system as a
remotely operated sequence
valve.
Operation
When a pre-set pilot pressure
is reached the spool moves
back against the spring either
opening or closing the line
between inlet and outlet.
When the pilot pressure falls
the valve will return to its
normal position.
Features
Cartridge design enabling
speedy servicing when mount-
ed in a body or in a composite
manifold.
Ratings and Specifications
Performance data is typical with fluid at 32 cST (150 SUS)
Max working pressure 420 bar (6090 psi)
Rated flow 80 L/min (20 USgpm)
Internal leakage 90 ml/min nominal per land
Temperature range -30° to 90°C (-22° to 194°F)
Cavity A21145 (see Section M)
Torque cartridge into cavity 67 Nm (50 lbs ft)
Mounting position Unrestricted
Filtration BS5540/4 Class 18/13 (25 micron or better)
Nominal viscosity range 5 to 500 cSt
Pilot pressure 7 or 10 bar (101.5 or 145 psi)
Cartridge material All working parts hardened and ground steel. External surfaces zinc plated.
Standard housing materials Aluminum and Steel
Weight 1RDS702 .37 kg (.8 lbs), 1RDS752 1.97 kg (4.3 lbs)
Seal kit SK1227 (Nitrile) SK1227V (Viton
®
)
Viton is a registered trademark of E.I. DuPont
Performance Data
Sectional View
Pressure Drop
2
3
1
4
Tank (4)
Inlet (3)
Outlet (2)
Pilot (1)
Flow - L/min
435
290
145
0
30
20
10
0
0 5.3 10.6 15.9 21.2 26.5
0 20 40 60 80 100
Flow - US gpm
Pressure - bar
Pressurep - psi
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 D-561.A
An Eaton Brand
D
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
27.0
(1.06)
97.7
(3.85)
32.0 A/F
1-1/16 12UN-2B
4
3
2
1
1RDS702 - Pilot to Shift Valve
Pilot to shift directional valve
80 L/min (20 USgpm) • 420 bar (6090 psi)
Model Code
1
Function
1RDS702 - Cartridge only
1RDS752 - Cartridge and body
2
Options
2 - Normally closed
3
Adjustment Means
N - Fixed
2 3 4 51
1RDS*** 2 N 6W S
Code Port Size Housing Number
Aluminum Steel
Omit Cartridge only
6W 3/4" BSP B21818 B21819
12T 3/4" SAE B21822 B21823
4
Port Size
5
Seals
S - Nitrile
SV - Viton
6
Pilot Pressure
.7 - 7 bar
1.0 - 10 bar
6
1.0
25.0
(0.98)
8.5
(0.33)
TYP
154.0
(6.06)
approx
127.0
(5.0)
111.3
(4.38)
78.0
(3.07)
53.5
(2.11)
50.5
(1.99)
101.6 (4.0)
91.9 (3.61)
29.0
(1.14)
25.0
(0.98)
50.8
(2.0)
4.8
(0.19)
3
3
4
2
4
2
1
Dimensions
mm (inch)
Installation DrawingCartridge Only
Note: For applications above
210 bar (3000 psi), please con-
sult our technical department
or use the steel body option.
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