Relief Valves Technical Information
Thermal Relief
CP208-4
OPERATION |
This is a direct-acting poppet type thermal relief valve that relieves from 1 to 2. |
|
SPECIFICATIONS |
Theoretical performance |
Schematic |
DIMENSIONS mm [in]
psi |
bar |
154 SUS (33 cSt) hyd. oil @ 100° F (38° C) |
||||
6527 |
450 |
|
|
|
|
|
5802 |
400 |
|
|
|
|
|
|
|
|
|
|
||
5076 |
350 |
|
|
|
|
|
|
|
|
|
|
||
4351 |
300 |
|
|
|
|
|
|
|
|
|
|
||
3626 |
250 |
|
|
|
|
|
|
|
|
|
|
||
2901 |
200 |
|
|
|
|
|
|
|
|
|
|
||
2176 |
150 |
|
|
|
|
|
|
|
|
|
|
||
1450 |
100 |
|
|
|
|
|
|
|
|
|
|
||
725 |
50 |
|
|
|
|
|
|
|
|
|
|
||
|
0 |
|
|
|
|
|
|
|
|
|
|
|
L/min |
0.4 |
0.8 |
1.2 |
1.6 |
2 |
|||
|
|
|
|
Flow |
|
|
|
|
US gal/min |
0.1 |
|
|
|
|
|
||
0.2 |
0.3 |
0.4 |
0.5 |
1 |
2 |
Specifications
Rated pressure |
415 bar [6000 psi] |
Rated flow |
1.1 l/min [0.3 US gal/min] |
Leakage |
10 drops/min @ 80% |
|
of pressure setting |
Weight |
0.23 kg [0.50 lb] |
Cavity |
SDC08-2 |
Cross-sectional view
3/4-16 UNF |
|
|
1.10 |
1.59 |
max. |
[27.8] |
[40.3] |
|
|
|
Type E |
|
|
adjustment |
1 |
|
|
|
|
Type K |
2 |
|
adjustment |
|
|
|
|
h0.875 in |
|
|
t27-34 N•m |
|
|
[20-25 lbf•ft] |
|
ORDERING INFORMATION
|
CP208-4-B-4S-E-C-300 |
|
Seals |
Seal kits |
Crack pressure |
B = Buna-N |
120221 |
Code x 10 = psi |
V = Viton |
120222 |
Example: 300 = 3000 psi |
Housing and ports |
Housing 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
BC332375370104en-000101 • February 2020
Adjustment ranges |
|
|
|
bar |
psi |
A = |
2-103 |
[30-1500] |
Standard |
207 |
[1000] |
B = |
7-207 |
[100-3000] |
Standard |
103 |
[1500] |
C = |
69-414 |
[1000-6000] |
Standard |
207 |
[3000] |
Adjustment options
E = External
K = Knob
RV - 6