EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 E-160.A
An Eaton Brand
E
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
1AR100 - Relief Valve
Spool, pilot operated
150 L/min (40 USgpm) • 400 bar (5800 psi)
Description
To limit pressure in a system.
Good for continuous duty and
accurate pressure control with
constant or varying flows.
Operation
When the inlet pressure
exceeds the setting of the
valve, the pilot section opens,
causing a small flow across
the orifice in the main spool.
The subsequent pressure drop
moves the spool against a light
spring opening a ring of radial
holes in the sleeve, allowing
relief flow to tank.
Features
High accuracy of pilot oper-
ated design. Hardened work-
ing parts give long, reliable,
trouble-free life. Cartridge con-
struction for installation into
your own manifold.
Pressure Drop Curves
Performance Data
Ratings and Specifications
Figures based on: Oil Temp = 40°C Viscosity = 32 cSt (150 SUS)
Rated flow 150 L/min (40 USgpm)
Max setting1AR100 400 bar (5800 psi)
Cartridge material Working parts hardened and ground steel.
External surfaces zinc plated.
Body material Standard aluminium (up to 210 bar*).
Add suffix “377" for steel option.
Mounting position Unrestricted
Cavity A881 (See Section M)
Torque cartridge into cavity 60 Nm (44 lbs ft)
Weight1AR100 0.14 kg (0.3 lbs)
1AR150 0.65 kg (1.4 lbs)
1AR155 0.91 kg (2.0 lbs)
Seal kit SK164 (Nitrile) SK164V (Viton
®
)
Recommended filtration level BS5540/4 class 18/13 (25 micron nominal)
Operating temp -30° to +90°C (-22° to +194°F)
Leakage 20 to 65 milliliters/min nominal
Nominal viscosity range 5 to 500 cSt
Viton is a registered trademark of E.I. DuPont
Sectional View
1
2
Flow - L/min
5800
5075
4350
3625
2900
2175
1450
725
0
400
350
300
250
200
150
100
50
0
0 10 20 30 40
0 38 76 114 152
Flow - US gpm
Pressure - bar
Pressurep - psi
Tank (2)
Pressure (1)
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 E-161.A
An Eaton Brand
E
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
Model Code
1
Function
1AR100 - Cartridge Only
1AR145 - Cartridge and Body
1AR150/1AR155
- Cartridge and Body
Through ported
2
Adjustment Means
P - Leakproof Screw
Adjustment
R - Handknob Adjustment
G - Tamperproof Cap
(See page E-7 for dimensions)
3
Port Size
1AR*** P 3W 40
1 2 3 4 5
4
Pressure Range
Note: Code based on pressure
in bar.
7 - 10-70 bar.
Std setting 35 bar
20 - 10-210 bar.
Std setting 100 bar
40 - 50-400 bar.
Std setting 280 bar
5
Seals
S - Nitrile (For use with most
industrial hydraulic oils)
SV - Viton
®
(For high tem-
perature and most special
uid applications)
Code Port Size Housing Number - Body Only
Aluminium Aluminium Steel Aluminium Steel
1AR145 1AR150 1AR150 1AR155 1AR155
3W 3/8" BSP C1084
4W 1/2" BSP B4851 C1044 C593
6W 3/4" BSP B3954 C1086 C4917
8W 1" BSP B1617 B4596
6T 3/8" SAE B10784
8T 1/2" SAE B19403 C7140
12T 3/4" SAE B19404 B10506 B10742
16T 1" SAE B1037 B24040
–
1AR100 - Relief Valve
Spool, pilot operated
150 L/min (40 USgpm) • 400 bar (5800 psi)
13.00
(0.51)
50.80
(2.0)
2 holes
ø9.0 (0.35)
thro’
10.00
(0.39)
19.00
(0.75)
2
1
50.80
(2.00)
142.80
(5.6)
max
35.00
(1.38)
89.00
(3.50)
38.10
(1.50)
19.00
(0.75)
2
1
Dimensions
Cartridge Only
Basic Code
1AR100
Note: For applications above
210 bar, please consult our
technical department or use
the steel body option.
Complete Valve
3/8", 1/2", 3/4" Ports
Basic Code
1AR150
Complete Valve
1" Ports
Basic Code
1AR155
Complete Valve
1AR145
71.4
(2.81)
2 holes Ø8.7
(0.34) thro’
92.0
(3.62)
31.8
(1.25)
50.8
(2.00)
1
2
1
25.4 (1.00)
145.4
(5.72)
max
12.7
(0.50)
35.0
(1.38)
6.3 (0.25)
50.8 (2.00)
38.1
(1.50)
Hex socket adjust
4.0 A/F
17.0 A/F
28.5 A/F
1-14 UNS-2A
54.0 (2.13)
max
56.7 (2.23)
Pressure (1)
TANK (2)
100.0
(3.94)
1 1
2
76.00
(2.99)
25.4
(1.00)
50.8
(2.00)
2 holes
Ø10.3 (0.41)
thro’
154.0
(6.06)
max
38.0 (1.5)
7.9 (0.31)
60.3
(2.37)
76.2
(3.00)
49.2
(1.94)
32.0
(1.26)
