Danfoss CP703-2 Technical Information
Logic Elements Technical Information
US gal/min
100
120
140
160
3
2
1
Spool Type
CP703-2
OPERATION
OPERATION
The CP703-2 is a 20-size, normally closed, vent-to-open, springbiased dierential-sensing logic element. It will modulate ow
from 1 to 2 based on the spring control pressure, inlet pressure
at port 1, and pilot pressure at port 3.
APPLICATION
Common applications include: pump unloading, pilot-operated
relief valve (mechanical or proportional), sequence valve
and selector circuit. 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 210 bar [3045 psi]
Rated ow at 7 bar
[100 psi]
340 l/min
[90 US gal/min]
Weight 1.18 kg [2.60 lb]
Cavity CP20-3S
PERFORMANCE CURVE
psi
80
60
40
20
0
BC332375783111en-000101 • February 2020
Theoretical performance
Pressure drop
33 cSt [154 SUS] hyd.oil at 38°C [100 °F]
bar
10
8
6
4
2
0
80
160
0
20
40 80
1
FULLY OPENED
240
60 100
2
320
SCHEMATIC
Flow
400
L/min
LE - 39
DIMENSION
50.8
[160 - 170 lbf.ft]
Housing and po
other housings
mm [in]
Logic Elements Technical Information
Spool Type
CP703-2
Cross-sectional view
[2.00]
EXAMPLE CIRCUITS
ORDERING
INFORMATION
1 5/8 - 12 UN THD.
CP703-2-B-16S -080
h 1.88 in
217 - 231 N.m
t
CP703-2
Seals
B=Buna-N 120380
V=Viton 120381
0=No housing No housing
8B = AL, 1 BSP CP20-3S-8B/2B = 1/4 BSP
10B = AL, 1-1/4 BSP CP20-3S-10B/2B = 1/4 BSP
16S =#16 SAE CP20-3S-16S/4S = #4 SAE
20S =#20 SAE CP20-3S-20S/4S = #4 SAE
rtsHousing P/N Pilot port
AL,
AL,
available
BC332375783111en-000101 • February 2020
Seal kit
Differential control
pressure
bar[psi]
050=3.4[50]
080=5.5[80]
100=6.9[100]
130=9.0[130]
150=10.3 [150]
LE - 40
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