Danfoss CP300-4 Technical Information
Logic Elements Technical Information
Pressure Compensator
CP300-4
OPERATION
The CP300-4 is a 10-size, flow control, restrictive type pressure compensator. Restrictive-type pressure compensators are three-ported valves that work in series with a fixed or variable control orifice. The pressure compensator is located downstream of the orifice and is spring-biased to an open position as shown in the example circuit. The spool “senses” the pressure on either side of the control orifice and will vary it’s restriction in order to maintain a constant pressure differential across the control orifice, hence maintaining a constant flow rate.
APPLICATION
Common applications include any circuit that requires compensated flow control going to one actuator or circuit. Pressure compensators offer the circuit designer capability to add pressure compensation
to any fixed or variable orifice. This ensures that flow, and resulting actuator speed, are maintained regardless of system and working pressures
SPECIFICATION |
SCHEMATIC |
||
Rated pressure |
210 bar [3045 psi] |
|
|
Rated flow at 7 bar |
40 l/min |
2 |
|
[100 psi] |
[10.6 US gal/min] |
|
|
Weight |
0.13 kg [0.29 lb] |
1 |
|
Cavity |
SDC10-3 |
||
|
|||
|
|
3 |
|
PERFORMANCE CURVE
psi 203
174
145
116 drop
87 |
<![if ! IE]> <![endif]>Pressure |
|
|
58 |
|
|
|
29 |
|
|
|
|
Theoretical performance |
|
|
||||||||||||
bar |
154 SUS (33 cSt) hyd. oil @ 100° F (38° C) |
|
|
||||||||||||
14 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
12 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
10 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
8 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
6 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4 |
|
|
|
Fully opened |
|
|
|
|
|
|
|
|
|||
2 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
0 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
L/min |
8 |
16 |
|
|
24 |
32 |
40 |
||||||||
|
|
|
|
|
|
Flow |
|
|
|
|
|
|
|
||
US gal/min |
2.1 |
4.2 |
6.3 |
8.5 |
10.6 |
||||||||||
|
|
||||||||||||||
BC332375783111en-000101 • February 2020 |
LE - 69 |
|
Logic Elements Technical Information |
|
Pressure Compensator |
|
CP300-4 |
DIMENSION |
Cross-sectional view |
mm [in] |
|
|
h 1.00 in |
|
t 41-47 N.m |
1 |
[30-35 lbf.ft] |
|
|
|
|
|
|
|
|
2 |
3 |
|
|
||||
|
|||||||
|
|
|
7/8-14 UNF |
|
|||
|
|
|
46.2 |
|
19.1 |
||
|
|
|
[1.82] |
|
[0.75] |
||
EXAMPLE CIRCUITS
ORDERING INFORMATION
Post-Compensated Proportional Flow Control
CP300 - 4 - B - 8S - 0 - 080
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Differential |
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Control |
|
|
|
Seals |
|
|
|
|
|
|
|
|
|
|
|
|
Pressure |
|
|||
|
|
|
|
|
|
|
|
|
|
|
|
|
|||||
|
|
|
Seal kit |
|
|
|
|
|
|
|
bar |
[psi] |
|||||
B |
= Buna-N |
120027 |
|
|
|
|
|
|
|
|
040 |
= |
2.8 |
[40] |
|||
V |
= Viton |
120028 |
|
|
|
|
|
|
|
|
080 |
= |
5.5 |
[80] |
|||
Housing and ports |
Housing P/N |
|
|
|
|
|
|
|
|
110 |
= |
7.6 |
[110] |
||||
|
|
|
|
|
|
|
|
150 |
= 10.3 |
[150] |
|||||||
|
|
|
|
|
|||||||||||||
0 |
|
= No Housing |
No Housing |
190 |
= 13.1 |
[190] |
|||||||||||
SE3B |
= AL,3/8 BSP |
SDC10-3-SE-3B |
|
|
|
|
|
|
|||||||||
SE4B |
= AL, 1/2 BSP |
SDC10-3-SE-4B |
|
|
|
|
|
|
|||||||||
6S |
|
= AL, #6 SAE |
CP10-3-6S |
|
|
|
|
|
|
||||||||
8S |
|
= AL, #8 SAE |
CP10-3-8S |
|
|
|
|
|
|
||||||||
Other housings available
BC332375783111en-000101 • February 2020 |
LE - 70 |
Loading...