Danfoss PC12-LPS Technical Information
Logic Elements Technical Information
Pressure drop
3
214
Pressure Compensator
PC12-LPS
OPERATION
The PC12-PS is a 12-size, load sense, priority, static, pressure compensator. The valve
will provide on-demand priority ow to port 2 in the required amount (dependent
on the load sense pressure on port 1), allowing the excess ow to go to auxiliary
functions through port 4.
APPLICATION
Common applications include steering circuits that require pre-compensated, priority ow
to go to the steering system, and the excess ow will go to an auxiliary function, like a fan
motor. To obtain dynamic load sensing (priority type pre-comp) add in orice between
ports 2 and 1 in the manifold. This provides faster response and is commonly used in
steering to ush out LS line. See Circuit Example.
SPECIFICATION
Rated pressure 210 bar [3045 psi]
Rated ow at 7 bar
[100 psi]
Weight 0.31 kg [0.68 lb]
Cavity CP12-4
75 l/min
[20 US gal/min]
PERFORMANCE CURVE
psi
261
218
174
131
87
44
SCHEMATIC
Theoretical performance
bar
18
15
12
9
6
3
0
0
l/min
33 cSt[154 SUS] hyd.oil@38
3 to 4,
2 Blocked
3 to 2
020406080 100
C [100° F]
USgal/min
BC332375783111en-000101 • February 2020
05.3 10.7 15.8 21.1 26.4
LE - 79
DIMENSION
1.25 in.
mm [in]
Logic Elements Technical Information
Pressure Compensator
PC12-LPS
Cross-sectional view
1
EXAMPLE CIRCUITS
2
80.59
[3.17]
1-1/16 -12 UN
3
68-75 Nm [50-55 lbf-ft]
4
25.40
[1.00]
PC12-LPS
ORDERING
INFORMATION
PC12-LPS-5.5-B-00
Differential Control Pressure
5.5 = 5.5 bar [80 psi]
7.0 = 7 bar [100 psi]
10.0 = 10.0 bar [150 psi]
BC332375783111en-000101 • February 2020
Housing and ports
00 = No Housing
3B = Al, 1/2 BSP
4B = Al, 3/4 BSP
10S = Al, #10 SAE
12S = Al, #12 SAE
Seals Seal Kit
B = Buna-N 120262
V = Viton 120263
Housing Part #
No Housing
CP12-4-3B
CP12-4
-4B
CP12-4-10S
CP12-4-12S
LE - 80
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