EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009H-470.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-20-3
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 0,88 kg (1.94 lbs)
Seal kit 889616 (Buna-N), 02-175433 (Viton
®
)
Viton is a registered trademark of E.I. DuPont
Operation
This valve, when used with
either a fixed or variable orifice
between port 1 and port 3,
maintains a constant flow.
This is based on what ever
pressure differential is chosen.
Flow out of port 2, regardless
of pressure, changes
downstream on port 2.
Features
Hardened and ground and
honed working components.
Cartridge construction for
maximum mounting flexibility.
Performance Data
Sectional View
A - 2,8 bar (40 psi) (control P)
B - 5,5 bar (80 psi) (control P)
0
0 10 20 30 40 50
4 0 8 0 120 160 200
4
8
12
16
20
0
0.100
0.200
0.300
0.400
0.500
0
0.600
0.700
A
B
Controlled flow in L/min (21,8 cSt oil @ 49° C)
Controlled flow USgpm (105 SUS oil @ 120° F)
Approx. orifice diameter - inches
Approx. orifice diameter - mm
Performance Characteristics
Cartridge only
PCS3-20 - Pressure Compensator
Restrictive
189 L/min (50 USgpm) • 210 bar (3000 psi)
Description
This is a restrictive style
compensator suitable for use
with a separate needle valve
or orifice to provide a pressure
compensated flow while
the excess oil passes over a
relief valve or closes down
the compensator on a pump.
This, when used in a manifold,
is ideal for motor or cylinder
speed control either meter in
or meter out.
1
23
1
2
3
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 H-471.A
An Eaton Brand
H
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
PCS3 20 (V) * (S) *** 00
1 2 3 4 5 6 7
Model Code
PCS3-20 - Pressure Compensator
Restrictive
189 L/min (50 USgpm) • 210 bar (3000 psi)
1 Function
PCS3 - Pressure compensator
restrictive type
2 Size
20 - 20 size
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 Spool Seals
Blank - No seal on spool
S - Seal on spool
(For load holding applications where
leakage from port 1 to 2 could cause
cylinder drift, use of seal will
increase hysteresis)
6 Pressure Dierential
(Nominal)
40 - 2,8 bar (40 psi)
80 - 5,5 bar (80 psi)
7 Special Features
00 - None
(Only required if valve has special
features, omit if "00".)
Torque into aluminum housing
to 128-155 Nm (95-115 ft lbs)
Dimensions
mm (inch)
98,4
(3.87)
33,30 (1.3
1
1)
41,3
(1.62)
36,47 (1.4
3
1
2
47,6 (1.87)
h
3
1.625 -12 Thd.
Cartridge Only
Basic Code
PCS3-20
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