LE - Logic Elements
CP300-4
LE - 68
11141720 • Rev AD • April 2015
Logic Elements Catalog
PERFORMANCE CURVE
APPLICATION
SPECIFICATION
OPERATION
SCHEMATIC
154 SUS (33 cSt) hyd. oil @ 100° F (38° C)
2
0
29
psi bar
Pressure drop
8L/min
Flow
2.1US gal/min
4
6
8
10
12
14
58
87
116
145
174
203
16 24 32 40
4.26.3 8.5 10.6
Fully opened
3
1
The CP300-4 is a 10-size, ow control, restrictive type pressure compensator. Restrictive-type pressure
compensators are three-ported valves that work in series with a xed or variable control orice. The
pressure compensator is located downstream of the orice and is spring-biased to an open position
as shown in the example circuit. The spool “senses” the pressure on either side of the control orice
and will vary it’s restriction in order to maintain a constant pressure dierential across the control
orice, hence maintaining a constant ow rate.
Rated pressure 210 bar [3000 psi]
Rated ow at 7 bar
[100 psi]
40 l/min
[10.6 US gal/min]
Weight 0.13 kg [0.29 lb]
Cavity SDC10-3
Theoretical performance
CP300-4
Pressure Compensator
Common applications include any circuit that requires compensated ow control going to one actuator
or circuit. Pressure compensators oer the circuit designer capability to add pressure compensation
to any xed or variable orice. This ensures that ow, and resulting actuator speed, are maintained
regardless of system and working pressures