EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 E-550.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 30 L/min (8 USgpm)
Max setting 350 bar (5000 psi)
Cartridge material Working parts hardened and ground steel.
External steel surfaces zinc plated.
Body material Standard aluminium (up to 210 bar*).
Add suffix “377" for steel.
Mounting position Unrestricted
Cavity number A6610 (See Section M)
Torque cartridge into cavity 45 Nm (33 lbs ft)
Weight PSC30 0.15 kg (0.33 lbs)
PSC35 0.41kg (0.90 lbs)
Seal kit number SK395 (Nitrile)
SK395V (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 0.3 milliliters/min nominal (5 dpm)
Nominal viscosity range 5 to 500 cSt
Viton is a registered trademark of E.I. DuPont
1PSC30 - Pressure Sequence Valve
Poppet, direct acting, normally closed, internal pilot, external drain, reverse flow check
30 L/min (8 USgpm) • 350 bar (5000 psi)
Description
Sequence valves provide
ordered sequencing of two
or more operations as with
clamp and drill circuits. They
can also be used as relief
valves where the downstream
pressure is high or changes
during operation. By taking the
drain line directly to tank, back
pressure effects are negated.
Operation
As with the direct acting relief
valves, when the pressure
exceeds the spring force, the
spool moves back, opening the
inlet to outlet.
Features
Match ground and honed
hardened working parts
give long, trouble-free life.
Consistent stable operation
providing low pressure rise due
to increasing flow.
Cartridge construction
gives maximum flexibility in
mounting. Steel valve bodies
available on request.
Pressure Drop Curves
Performance Data
Sectional View
3 1
2
Flow - L/min
Pressure - psi
Pressure - bar
Flow - US gpm
0 5 10 15 20 25 30
0 2.6 5.2 7.8
4350
3625
2900
2175
1450
725
0
300
250
200
150
100
50
0
Flow - L/min
Pressure - psi
Pressure - bar
Flow - US gpm
0 10 20 30 40 50
0 2.5 5 7.5 10 12.5
750
600
450
300
150
0
50
40
30
20
10
0
Free ow
Drain (3)
Sequenced
(2)
Inlet (1)
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 E-551.A
An Eaton Brand
E
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
1PSC** F 3W 20 S
1 2 3 4 5
1PSC30 - Pressure Sequence Valve
Poppet, direct acting, normally closed, internal pilot, external drain, reverse flow check
30 L/min (8 USgpm) • 350 bar (5000 psi)
Model Code
3 Port Sizes
4 Pressure Range
@ 4,8 L/min
Note:
102035
5 Seals
SSV
Cartridge Only
Basic Code
1PSC30
Complete Valve
3/8", 1/2" Ports
Basic Code
1PSC35
Note:
For applications above
210 bar please consult our
technical department or use
the steel body option.
Code Port Size Housing Number - Body Only
Aluminium Steel
3W 3/8" BSP Valve & Cyl Port. 1/4" BSP Pilot Port B6743 B12823
6T 3/8" SAE Valve & Cyl Port. 1/4" SAE Pilot Port B10536
8T 1/2" SAE Valve & Cyl Port. 1/4" SAE Pilot Port B7884 B11811
1 Function
1PSC30 - Cartridge Only
1PSC30 - Cartridge and body
2 Adjustment Means
F - Screw adjustment
N
- Fixed - State pressure
Setting required
Dimensions
mm (inch)
Note:
Tightening torque of “F"
adjuster locknut - 20 to 25 Nm.
47.0
(1.85)
max
Hex socket adjust
4.0 A/F
17.0 A/F
25.4 A/F
M20 x 1.5-6g
Drain (3)
Inlet (1)
Sequence (2)
28.0 max
for xed
'N' adjust
42.5
(1.67)
– –
26.5
(1.04)
60.0
(2.36)
16.0
(0.63)
31.8
(1.25)
9.0
(0.35)
42.0
(1.65)
32.0
(1.26)
63.5
(2.50)
9.0
(0.35)
11.5
(0.45)
88.0
(3.46)
for
xed
‘N’ adjust
107.0
(4.21)
max
3
2
1
2 holes Ø9.0 (0.35) thro’
