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Proportional Valves Technical Information
n
Reverse Free Flow Pressure drop
1000
12
CP558-20-B-6S-300-24D-H
Seals
Seal kit
B=Buna-N 120221
V=Viton 120222
Pressure code
050= 35 bar [500 psi] max
100= 69 bar [1000 psi] max
200= 138 bar [2000 psi] max
300= 207 bar [3000 psi] max
Housing and portsHousing P/N
0=No Housing No Housing
DG2B=AL,1/4 BSP SDC08-2-DG-2B
DG3B=AL, 3/8 BSP SDC08-2-DG-3B
4S = AL, #4 SAE CP08-2-4S
6S = AL, #6 SAE CP08-2-6S
Other housings available
Voltage
000 = No coil
12D = 12 VDC coil
24D = 24 VDC coil
Termination
00 = No connector
H
L = Lead wires
DE = Deutsch
M2 = Metripack 150
Type 1
S = Spade
= DIN 43650
Pressure Relieving, Direct Acting, Normally Open
CP558-20
OPERATION
SPECIFICATIONS
CP558-20
This is a direct-acting normally-open, proportional relief valve.
THEORETICAL PERFORMANCE
Rated pressure 210 bar [3000 psi]
Rated flow 8 l/min
[2 US gal/min]
Weight 0.48 kg [1.06 lb]
Hysteresis 10% maximum
Threshold current 0 A (12 VDC coil)
0 A (24 VDC coil)
Maximum control
current
1.2 A (12 VDC coil)
0.6 A (24 VDC coil)
Cavity SDC08-2
Standard Coil D10 30 Watt
Coil nut 321978
SCHEMATIC
psi bar
3046
2611
2176
1740
1305
870
psi
800
600
400
200
0
154 SUS (33 cSt) hyd. oil @ 100° F (38° C)
210
180
150
120
90
60
Press ure drop
30435
0
0.2
33 cSt [154 SUS] hyd.oil at 38°C [100 °F]
bar
70
56
42
Code 300
28
14
0
0
at 1.0 L/min [0.3 gpm] flow
0
0
0
0
2
3
=
=
e
d
e
o
C
d
o
C
0
5
0
=
de
o
C
0.4 0.6 0.811.2 1.4
Current, Amps (with 12VDC coil)
Code 200
Code 100
Code 050
Coil de-energized
4
8
2
1
16
12
3
4
20
5
Flow
L/min
US gal/mi
DIMENSIONS
mm [in]
1
ORDERING
INFORMATION
BC332375973113en-000101 • February 2020
Cross-sectional view
3/4-16 UNF
2
ht0.875
27-34 N•m
[20-25 lbf•ft]
87.0
[3.43]
26mm
3-5 Nm [26-44 lbf*in]
KIT P/N 11041555
includes nut and O-rings
PV - 63
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