EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 E-630.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 = 32 cSt (150 SUS)
Rated flow 100 L/min (26 USgpm)
Pressure range 10 to 350 bar (150 to 5000 psi)
Max differential 210 bar (3000 psi) between 1 and 2
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 1PA100 0.17 kg (0.37 lbs)
1PA150 0.60 kg (1.32 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)
Pilot flow 500 milliliters/min @ standard setting
Nominal viscosity range 5 to 500 cSt
Viton is a registered trademark of E.I. DuPont
1PA100 - Pressure Reducing Valve
Spool, pilot operated
100 L/min (26 USgpm) • 10 bar (150 psi) to 350 bar (5000 psi)
Description
This is a pilot operated pressure
reducing valve designed
to maintain a constant
downstream pressure lower
than the inlet pressure. Ideal for
use in two pressure systems
or to protect low pressure
actuators such as brake
cylinders.
Operation
This valve is normally open,
allowing oil from the inlet to pass
through to the regulated port of
the cartridge.
When the regulated pressure
reaches the valve setting, the
pilot section opens causing
a pressure imbalance across
the main spool which moves,
throttling the inlet flow,
preventing any further pressure
rise in the regulated line.
Features
Internal parts hardened, match
ground and honed to give long,
trouble-free life. Pilot style
design allows for high flows and
accurate performance.
Pressure Drop Curve
Performance Data
Sectional View
2
3
1
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
D RAI N ( 3)D RAI N ( 3)
Drain (3)
Inlet (2)
Reg (1)
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 E-631.A
An Eaton Brand
E
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
4 Pressure Range
@ zero flow
Note:
7 20 35
5 Seals
S SV
1 Basic Code
1PA100 - Cartridge Only
1PA150 - Cartridge and
Body
2 Adjustment Means
P - Leakproof Screw
Adjustment
R
- Handknob Adjustment
G - Tamperproof Cap (See
page E-7 for dimensions)
1PA*** P 4W 35 S
1 2 3 4 5
Dimensions
mm (inch)
1PA100 - Pressure Reducing Valve
Spool, pilot operated
100 L/min (26 USgpm) • 10 bar (150 psi) to 350 bar (5000 psi)
Model Code
3 Port Sizes - Bodied Valves Only
Cartridge Only
Basic Code
1PA100
Code Port Size Housing Number
Aluminium Steel
Single Single
4W 1/2" BSP. 1/4" BSP Drain Port B4821 B4527
6W 3/4" BSP. 1/4" BSP Drain Port B5466 B4403
8T 1/2" SAE. 1/4" SAE Drain Port B6584
12T 3/4" SAE. 1/4" SAE Drain Port
B7883 B11379
Complete Valve
1PA150
39.0
(1.54)
max
71.0
(2.80)
Hex socket adjust
4.0 A/F
17.0 A/F
28.6 A/F
Drain (3)
1-14 UNS 2A
Inlet (2)
Reg (1)
– –
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.
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)
