EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 E-520.A
An Eaton Brand
E
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
Ratings and Specifications
Figures based on: Oil Temp = 40° C Viscosity = 40 cSt
Rated flow 150 L/min (40 USgpm)
Max setting 350 bar (5000 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 number A880 (See Section M)
Torque cartridge into cavity 60 Nm (44 lbs ft)
Weight 1PS100 0.17 kg (0.37 lbs)
1PS145 0.56 kg (1.23 lbs)
Seal kit number SK177 (Nitrile) SK177V (Viton
®
)
Filtration BS5540/4 Class 18/13 (25 micron nominal)
Operating temp -30°C to +90°C (-22° to +194°F)
Leakage 35 milliliters/min @ 280 bar
Nominal viscosity range 5 to 500 cSt
Viton is a registered trademark of E.I. DuPont
1PS100 - Pressure Sequence Valve
Spool, pilot operated, normally closed, internal pilot, external drain
150 L/min (40 USgpm) • 350 bar (5000 psi)
Description
Pilot operated models are best
suited for higher flows which
may vary widely to:
1. Provide ordered or
sequenced series of
operations as in a clamp and
drill circuit.
2. Serve as a relief valve where
oil viscosity or restrictions
in the downstream line
would cause excessive
back pressure. The separate
spring chamber drain
makes the sequence valve
insensitive to this back
pressure.
Operation
As in the pilot operated relief,
when the setting of the valve
is exceeded the pilot section
opens.
This pilot flow causes a pressure
imbalance opening the main
section and allowing flow to a
secondary circuit (sequenced
line).
Features
Hardened steel working parts
give long, trouble-free life.
Selectively matched honed
assemblies give accurate
performance.
Pressure Drop Curves
Performance Data
Sectional View
3
1
2
Flow - US gpm
Flow - L/min
Pressure - psi
Pressure - bar
5800
5075
4350
3625
2900
2175
1450
725
0
400
350
300
250
200
150
100
50
0
0 30 60 90 120 150
0 8 16 24 32 40
Drain (3)
Sequenced (2)
Inlet (1)
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 E-521.A
An Eaton Brand
E
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
1PS*** P 3W 35 S
1 2 3 4 5
Dimensions
mm (inch)
Note. Tightening torque of “F"
adjuster locknut - 20 to 25 Nm
Note. For applications above
210 please consult our techni-
cal department or use the
steel body option.
1PS100 - Pressure Sequence Valve
Spool, pilot operated, normally closed, internal pilot, external drain
150 L/min (40 USgpm) • 350 bar (5000 psi)
Model Code
3 Port Sizes - Bodied Valves Only
1 Basic Code
1PS100 - Cartridge Only
1PS145 - Cartridge and Body
1PS155 - Cartridge, Body and
Check
2 Adjustment Means
P
- Leakproof Screw
Adjustment
R
- Handknob Adjustment
G - Tamperproof Cap (See
page E-7 for dimensions)
4 Pressure Range
@ 14 L/min
Note:
7 20 35
5 Seals
SSV
Code Port Size Housing Number
Aluminium Steel
Single Single
1PS145
4W
1/2" BSP. 1/4" BSP Drain Port B4821 B4527
6W 3/4" BSP. 1/4" BSP Drain Port B5466 B4403
6T 3/8" SAE. 1/4" SAE Drain Port B10793
8T 1/2" SAE. 1/4" SAE Drain Port
B6584
12T
3/4" SAE. 1/4" SAE Drain Port B7883 B11379
Cartridge Only
Basic Code
1PS100
Complete Valve
3/8", 1/2" , 3/4" Ports
Basic Code
1PS145
– –
Drain (3)
39.0
(1.54)
max)
Sequenced (2)
Inlet (1)
71.0
(2.80)
Hex socket adjust
4.0A/F
17.0 A/F
28.6 A/F
1-14 UNS
50.8
(2.00)
8.0
(0.31)
38.1
(1.50)
50.8
(2.00)
88.1 (3.49)
108.0 (4.25)
25.4
(1.00)
49.3
(1.94)
11.0
(0.43)
147.0 (5.78) max
25.4
(1.00)
2 holes Ø10.3 (0.41) thro’
50.0 (1.97)
