EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 E-110.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 32 cSt (150 SUS) and 40° C (120° F)
Typical application pressure 400 bar (5800 psi)
Rated flow 30 L/min (8 USgpm)
Cartridge Material Working parts hardened and ground steel.
External sufaces zinc plated.
Cavity C-8-2 (see Section M)
Standard housing materials Aluminum (up to 210 bar)
or Steel (add 377 suffix for steel option)
Torque Cartridge into Cavity 45 Nm (33 lbs ft)
Temperature range -30° to 90°C (-22° to 194°F)
Fluids All general purpose hydraulic fluids such as:
MIL–H–5606, SAE 10, SAE 20, etc.
Filtration Cleanliness Code BS5540-4 18/13 (25 micron nominal)
Weight cartridge only 0,17 kg (0.37)
Internal leakage 0.3 ml/min nominal (5 dpm)
Nominal Viscocity Range 5 to 500 cSt
Seal kits SK243 Buna–N
SK243V Viton
®
Viton is a registered trademark of E.I. DuPont
1DR30 - Relief Valve
Poppet, Direct Acting
30 L/min (8 USgpm) • 400 bar (5800 psi)
Operation
Pressure on the nose of the
cartridge acts over the seat
area moving the poppet
against the spring, allowing
relief flow to tank.
Features
Fast acting, low pressure rise
due to flow for a direct acting
valve.
Performance Data
Sectional View
Description
This is a direct acting,
poppet style screw in
cartridge relief valve, it is an
economical solution for small
flow systems where a fast
response is required.
Pressure Override Curves
Cartridge only
Flow - L/min
5800
5075
4350
3625
2900
2175
1450
725
0
400
350
300
250
200
150
100
50
0
0 2.6 5.2 7.8 10.4 13
0 10 20 30 40 50
Flow - US gpm
Pressure - bar
Pressure - psi
Tank (2)
Pressure (1)
1
2
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 E-111.A
An Eaton Brand
E
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
1DR30 - Relief Valve
Poppet, Direct Acting
30 L/min (8 USgpm) • 400 bar (5800 psi)
Model Code
1DR** P 3W 40 S
1 2 3 4 5
70.0
(2.76)
max
(40S)
52.0
(2.05)
max
(10S/20S)
26.2
(1.03)
3/4-16 UNF
25.4 A/F
17.0 A/F
Hex socket adjust
4.0 A/F
Tank (2)
Pressure (1)
31.0
(1.22)
44.0
(1.73)
15.9
(0.62)
31.8
(1.25)
50.0
(1.97)
16.0
(0.63)
12.7
(0.50)
28.8
(1.13)
44.8 (1.76)
50.8 (2.00)
103.0 (4.06) max
(1DR35-P-10S/20S)
120.3 (4.74) (1DR35-P-40S)
2 holes
Ø6.8 (0.27)
thro’
1
2
•
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 DrawingCartridge Only
Code Port Size Housing Number
Aluminium Steel
0 Cartridge only
2W 1/4" BSP A1485
3W 3/8" BSP A1043 A14175
6T 3/8" SAE A15676 A14843
See section J for housing details.
3
Port Size - Bodied Valves Only
1
Function
1DR30 - Cartridge only
1DR35 - Cartridge and body
2
Adjustment
P - Leakproof screw adjustment
R - Handknob adjustment
G - Tamperproof cap (see page
E-7 for dimensions)
5
Seal Material
S - Nitrile (for use with most
industrial hydraulic oils)
SV - Viton
®
(for high tempera-
ture and most special
uid applications)
4
Pressure Range at
4.8 l/min
Note: Code based on pressure
in bar.
10 - 7-100 bar (100-1450 psi)
- std setting at 70 bar
20 - 35-210 bar (500-3000 psi)
- std setting at 100 bar
40 - 50-400 bar (725-5800 psi)
- std setting at 280 bar
– –
