Danfoss CP221-1 Technical Information
Relief Valves Technical Information
1,45
2,17
2,90
3,62
200
8
i
Cross-Over
CP221-1
OPERATION
SPECIFICATIONS
DIMENSIONS
mm [in]
V1
V2
63.5
[2.50]
This valve is an inline cross relief. It uses two CP201-1 dierential area relief valves.
Theoretical performance Schematic
psi bar
6
1
6
0
Press ure drop
725
154 SUS (33 cSt) hyd. oil @ 100° F (38° C)
250
200
150
100
50
0
40L/min
80 120 160
21.1 31.7 42.3 52.
10.6US gal/min
Flow
V1
V2
Specications
Rated pressure 250 bar [3600 psi]
Rated ow 150 l/min [40 US gal/min]
Weight 2.25 kg [4.95 lb]
Cavity none
Cross-sectional view
101.6 [4.00]
88.9 [3.50]
44.5
[1.75]
25.4
[1.00]
12.7
[0.50]
25.4
[1.00]
57.2
[2.25]
88.9
[3.50]
114.3
[4.50]
62.7
[2.47]
38.9
[1.53]
V1 C1
V2
C2
11.9
[0.47]
C1
C2
234.7
[9.24]
C1
C2
ORDERING
INFORMATION
Housings & Ports
6B: 3/4 BSP, AL
8B: 1 BSP, AL
12S: #12 SAE, AL
16S: #16 SAE, AL
Seal Option
Code Seal Material Seal kit
B Buna 120017
V Viton 120018
BC332375370104en-000101 • February 2020
Housing P/N
221742
221690
220223
220222
CP221-1 -
16S
- B - 0 -
Adjustment Option
A
Internal
E
External
F
Tamper Resistant
K
Knob
A
- C - 150
Cracking Pressure
Code x 10 = psi
Example: 150 = 1500 ps
Pressure Range
bar [psi]
A = 7-69 [100-1000]
Standard 28 [400]
B = 17-172 [250-2500]
Standard 69 [1000]
C = 41-248 [500-3600]
Standard 103 [1500]
RV - 30
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