Danfoss CP700-4 Technical Information
Logic Elements Technical Information
Spool Type
CP700-4
OPERATION
The CP700-4 is a 10-size, normally open, pilot-to-open, springbiased differential-sensing logic element. It will modulate flow 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: pre-compensator for proportional directional control or flow controls, as well as a pressure control valve. A common application for this valve is as a pressure compensator when applied with a fixed, or adjustable orifice to create a pressure-compensated flow control. This ensures that flow rate, and resulting actuator speed is maintained regardless of pressure drop across the control orifice. Effective use of logic elements is a key to designing cost-effective circuits, and is limited only by the imagination of the designer.
SPECIFICATION |
SCHEMATIC |
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Rated pressure |
210 bar [3045 psi] |
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Rated flow at 7 bar |
40 l/min |
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[100 psi] |
[11 US gal/min] |
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Weight |
0.13 kg [0.28 lb] |
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Cavity |
SDC10-3 |
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PERFORMANCE CURVE |
Theoretical performance |
psi 203
174
145
116 drop
87 |
<![if ! IE]> <![endif]>Pressure |
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58 |
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29 |
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BC332375783111en-000101 • February 2020
bar |
154 SUS (33 cSt) hyd. oil @ 100° F (38° C) |
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14 |
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10 |
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Fully |
opened |
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8 |
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6 |
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2 |
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0 |
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L/min 10 |
20 |
30 |
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40 |
50 |
60 |
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Flow |
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US gal/min 2.6 |
5.3 |
7.9 |
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10.6 |
13.2 |
15.9 |
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LE - 43
Logic Elements Technical Information
Spool Type
CP700-4
DIMENSION |
Cross-sectional view |
mm [in] |
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h 1.00 in |
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t 41-47 N.m |
1 |
[30-35 lbf.ft] |
2 |
3 |
7/8-14 UNF |
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46.2 |
19.1 |
[1.82] |
[0.75] |
EXAMPLE CIRCUITS
Compensated Circuit |
Proportional Pressure Reducing |
ORDERING |
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INFORMATION |
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CP700 - 4 - B - 8S - 080 |
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Differential |
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Control |
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Seals |
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Pressure |
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Seal kit |
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bar |
[psi] |
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B |
= Buna-N |
120009 |
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040 |
= |
2.8 |
[40] |
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V |
= Viton |
120010 |
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080 |
= |
5.5 |
[80] |
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Housing and ports |
Housing P/N |
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110 |
= |
7.6 |
[110] |
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150 |
= 10.3 |
[150] |
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0 |
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= |
No Housing |
No Housing |
200 |
= 13.8 |
[200] |
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SE3B |
= AL,3/8 BSP |
SDC10-3-SE-3B |
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SE4B |
= AL, 1/2 BSP |
SDC10-3-SE-4B |
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6S |
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= |
AL, #6 SAE |
CP10-3-6S |
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8S |
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= |
AL, #8 SAE |
CP10-3-8S |
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Other housings available
BC332375783111en-000101 • February 2020 |
LE - 44 |
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