Logic Elements Technical Information
Spool Type
CP701-3
OPERATION
The CP701-3 is a 12-size, normally open, pilot-to-close, springbiased dierential-sensing logic element. It will modulate
ow from 2 to 1 based on the spring control pressure, outlet
pressure at port 1, and pilot pressure at port 3.
APPLICATION
Common applications include: high-ow pressure reducing valve
when using a small relief valve (like CP208-1), or a proportional
relief valve (like PRV08-DAC) as a pilot element. Eective use of logic
elements is a key to designing cost-eective circuits, and is limited
only by the imagination of the designer.
SPECIFICATION
Rated pressure* 350 bar [5075 psi]
Rated ow at 7 bar
[100 psi]
Weight 0.26 kg [0.57 lb]
Cavity CP12-3S
* Rated Pressure based on NFPA fatigue test standards (at 1 Million Cycles).
80 l/min
[21 US gal/min]
Theoretical performance
PERFORMANCE CURVE
psi bar
203
174
145
116
87
58
29
154 SUS (33 cSt) hyd. oil @ 100° F (38° C)
14
12
10
8
6
Press ure drop
4
2
SCHEMATIC
Fully opened
BC332375783111en-000101 • February 2020
0
40 60 80 100
20L/min
5.3US gal/min
Flow
10.6 15.9 21.1 26.4
LE - 57
DIMENSION
[2.20]
[1.00]
100]
[150]
Housing and po
mm [in]
Logic Elements Technical Information
Spool Type
CP701-3
Cross-sectional view
h 1.25 in
68-75 N.m
t
1
[50-55 lbf.ft]
EXAMPLE CIRCUITS
2
1-1/16-12 UN
55.9
3
25.4
CP701-3
ORDERING
INFORMATION
Seals
B=Buna-N 120335
V=Viton 120336
0=No housing No housing
4B = AL, 1/2 BSP CP12-3S-4B/2B = 1/4 BSP
6B = AL, 3/4 BSP CP12-3S-6B/2B = 1/4 BSP
10S =#10 SAE CP12-3S-10S/4S = #4 SAE
12S =#12 SAE CP12-3S-12S/4S = #4 SAE
rtsHousing P/N Pilot port
AL,
AL,
BC332375783111en-000101 • February 2020
CP701-3-B-12S -080
Seal kit
Differential
Control
Pressure
bar[psi]
030=2.1[30]
050=3.5[50]
080=5.5[80]
100=6.9[
150=10.3
LE - 58
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