LE - Logic Elements
CP701-4
LE - 48
11141720 • Rev AD • April 2015
Logic Elements Catalog
PERFORMANCE CURVE
APPLICATION
SPECIFICATION
OPERATION
SCHEMATIC
OPERATION
154 SUS (33 cSt) hyd. oil @ 100° F (38° C)
2
0
29
psi bar
Pressure drop
20L/min
Flow
5.3US gal/min
4
6
8
10
12
14
58
87
116
145
174
203
40 60 80 100
10.6 15.9 21.1 26.4
Fully opened
The CP701-4 is a 12-size, normally open, pilot-to-open, spring-
biased dierential-sensing logic element. It will modulate ow
from 2 to 1 based on the spring control pressure, inlet pressure at
port 1, and outlet pressure at port 3.
Rated pressure 210 bar [3000 psi]
Rated ow at 7 bar
[100 psi]
75 l/min
[20 US gal/min]
Weight 0.26 kg [0.57 lb]
Cavity CP12-3S
Theoretical performance
CP701-4
Spool Type
Common applications include: pre-compensator for proportional
directional control or ow controls, as well as a pressure control valve.
A common application for this valve is as a pressure compensator
when applied with a xed, or adjustable orice to create a pressure-
compensated ow control. This ensures that ow rate, and resulting
actuator speed is maintained regardless of pressure drop across the
control orice. Eective use of logic elements is a key to designing
cost-eective circuits, and is limited only by the imagination of the
designer.
LE - Logic Elements
CP701-4
LE - 49
11141720 • Rev AD • April 2015
Logic Elements Catalog
ORDERING
INFORMATION
EXAMPLE CIRCUITS
DIMENSION
55.9
[2.20]
25.4
[1.00]
1-1/16-12 UN
1
2
3
h 1.25 in
68-75 N
.
m
[50-55 lbf
.
ft]
t
CP701-4-B-12S -080
Differential
Control
Pressure
bar[psi]
030=2.1[30]
050=3.5[50]
080=5.5[80]
100=6.9[100]
150=10.3 [150]
Seals
Seal kit
B=Buna-N 120335
V=Viton 120336
Housing and po
rtsHousing P/N Pilot port
0=No housing No houisng
10S =#10 SAE CP12-3S-10S/4S = #4 SAE
12S =#12 SAE CP12-3S-12S/4S = #4 SAE
4B = AL, 1/2 BSP CP12-3S-4B/2B = 1/4 BSP
6B = AL, 3/4 BSP CP12-3S-6B/2B = 1/4 BSP
AL,
AL,
Compensated Circuit
Cross-sectional view
Proportional Pressure Reducing
mm [in]
Spool Type
CP701-4
