EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 E-570.A
An Eaton Brand
E
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
1UPS100 - Pressure Sequence Valve
Spool, pilot operated, normally closed, internal pilot, external drain, unloading
150 L/min (40 USgpm) • 350 bar (5000 psi)
Ratings and Specifications
Figures based on: Oil Temp 40° C Viscosity = 32 cSt (150 SUS)
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 1PSC100 0.17 kg (0.37 lbs)
1PSC145 0.56 kg (1.23 lbs)
Seal kit number SK177 (Nitrile)
SK177V (Viton
®
)
Recommended filtration level BS5540/4 Class 18/13 (25 micron nominal)
Operating temp -30°C to +90°C (-22°C to 194°F)
Leakage 100 milliliters/min nominal
Nominal viscosity range 5 to 500 cSt
Viton is a registered trademark of E.I. DuPont
Description
An off-loading (kick down)
sequence valve opens fully to
pass flow to a secondary circuit
when the valve pressure setting
is reached. This allows flow to
the secondary circuit with a
minimal pressure drop.
Operation
Inlet pressure acts on the pilot
section of the valve. When the
valve setting is reached, the pilot
section opens and pilot flow
causes the spool to move back
uncovering the radial vent port.
The main section then opens
fully with pilot flow passing
through the vent. The valve
remains open until flow to the
sequenced port ceases and inlet
pressure drops to zero.
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
217.5
174.0
130.5
87.0
43.5
0
15
12
9
6
3
0
0 30 60 90 120 150
0 8 16 24 32 40
Unloaded
1-2
Drain (3)
Sequenced
(2)
Inletl (1)
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 E-571.A
An Eaton Brand
E
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
1UPS*** P 3W 35 S
1 2 3 4 5
Dimensions
mm (inch)
1UPS100 - Pressure Sequence Valve
Spool, pilot operated, normally closed, internal pilot, external drain, unloading
150 L/min (40 USgpm) • 350 bar (5000 psi)
Model Code
3 Port Sizes
4 Pressure Range
@ 14 L/min
Note: Code based on pressure
in bar.
20 - 10-210 bar.
Std. setting 100 bar
35 - 30-350 bar.
Std setting 210 bar
Std setting made at 14 L/min
5 Seals
S - Nitrile (For use with most
industrial hydraulic oils)
SV - (For high temperature
and most special fluid
applications)
Cartridge Only
Basic Code
1UPS100
Complete Valve
3/8", 1/2", 3/4" Ports
Basic Code
1UPS145
Note:
Code Port Size Housing Number - Body Only
Aluminium Steel
4W 1/2" BSP 1/4" BSP Drain Ports B4821 B4527
6W 3/4" BSP 1/4" BSP Drain Ports B5466 B4403
6T 3/8" SAE 1/4" SAE Drain Ports B10793
8T 1/2" SAE 1/4" SAE Drain Ports B6584
12T 3/4" SAE 1/4" SAE Drain Ports B7883 B11379
1 Function
1UPS100 - Cartridge Only
1UPS145 - Cartridge in body
1UPS155 - Cartridges in dual
body
2 Adjustment Means
P - Leakproof screw
adjustment
R
- Handknob adjustment
G - Tamperproof Cap
(See page 4-102 for dimensions)
– –
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)
