EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009H-540.A
An Eaton Brand
H
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
Ratings and Specifications
Performance data is typical with fluid at 21,8 cSt (105 SUS) and 49° C (120° F)
Typical application pressure (all ports) 210 bar (3000 psi)
Cartridge fatigue pressure (infinite life) 210 bar (3000 psi)
Rated flow 189 L/min (50 USgpm)
Cavity C-20-4
Standard housing materials Customized housings are
necessary for close-coupling,
the compensator and orifice
Temperature range -40° to 120° C (-40° to 248° F)
Fluids All general purpose hydraulics fluids such as:
MIL-H-5606, SAE 10, SAE 20 etc
Filtration Cleanliness code 18/16/13
Weight cartridge only 0,50 kg (1.12 lbs)
Seal kit 889660 (Buna-N)
02-175435 (Viton
®
)
Viton is a registered trademark of E.I. DuPont
Operation
This valve, when used with
either a fixed or variable
orifice on port 4, maintains
a constant flow out of port
3, regardless of pressure
changes downstream of port
3. This is based on whatever
pressure differential is chosen.
All flow in excess of the
priority requirement is
bypassed from port 1 to
port 2. If the priority port is
deadheaded, the valve will
try to direct flow out of the
priority port and shut off the
bypass flow, blocking of all
flow.
Features
Hardened and ground and
honed working components.
Cartridge construction for
maximum mounting flexibility.
Performance Characteristics
Cartridge only
Performance Data
Sectional View
A - 2,8 bar (40 psi) (control P)
B - 5,5 bar (80 psi) (control P)
Controlled priority flow port 3 - L/min (21,8 cSt oil @ 49˚ C)
Controlled priority flow port 3 - USgpm (105 SUS oil @ 120˚ F)
A
B
0 35 70 105 140 175 210 245
0 7 14 21 28 35 42 49 56 63 70
3
6
9
12
15
0
0.100
0.200
0
0.300
0.400
0.500
0.600
Approx. orifice diameter - inches
Approx. orifice diameter - mm
PCS4-20 - Pressure Compensator
Bypass or priority
189 L/min (50 USgpm) • 210 bar (3000 psi)
Descriptions
This is a priority style
compensator suitable for use
with a separate needle valve
or orifice to provide a priority
pressure compensated flow.
This when used in a manifold
is ideal for motor or cylinder
control where priority is
required.
2
1
3
4
1
2
3
4
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 H-541.A
An Eaton Brand
H
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
PCS4-20 - Pressure Compensator
Bypass or priority
189 L/min (50 USgpm) • 210 bar (3000 psi)
1 Function
PCS4 - Pressure compensator
bypass type
2 Size
20 - 20 size
Dimensions
mm (inch)
139,7
(5.50)
31,70 (1.248)
41,3
(1.62)
36,47 (1.4
3
1
2
47,6 (1.87) h
e
3
1.625 -12 Thd
.
4
33,30 (1.3
1
1)
Torque into aluminum housing
to 128-155 Nm (95-115 ft lbs)
3 Seal Material
Blank - Buna-N
V - Viton
®
4 Port Size
0 - Cartridge only
(Customized housings are necessary
for close-coupling, compensator
and orifice)
5 Pressure Dierential
(Nominal)
40 - 2,8 bar (40 psi)
80 - 5,5 bar (80 psi)
6 Special Features
00 - None
(Only required if valve has special
features, omit if "00".)
Model Code
PCS4 20 (V) * *** 00
1 2 3 4 5 6
Cartridge Only
Basic Code
PCS4-20
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