LE - Logic Elements
PC12-LPS
LE - 78
11141720 • Rev AD • April 2015
Logic Elements Catalog
PERFORMANCE CURVE
APPLICATION
SPECIFICATION
OPERATION
SCHEMATIC
PC12-LPS
Pressure Compensator
0
3
6
9
12
15
18
020406080 100
bar
l/min
Pressure drop
33 cSt[154 SUS] hyd.oil@38
C [100° F]
05.3 10.7 15.8 21.1 26.4
USgal/min
44
87
131
174
218
261
psi
0
3 to 4,
2 Blocked
3 to 2
3
2
1
4
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 3.
Rated pressure 210 bar [3045 psi]
Rated ow at 7 bar
[100 psi]
75 l/min
[20 US gal/min]
Weight 0.31 kg [0.68 lb]
Cavity CP12-4
Theoretical performance
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 orice 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.
PC12-LPS
LE - Logic Elements
PC12-LPS
LE - 79
11141720 • Rev AD • April 2015
Logic Elements Catalog
ORDERING
INFORMATION
EXAMPLE CIRCUITS
DIMENSION
1.25 in.
68-75 Nm [50-55 lbf-ft]
80.59
[3.17]
25.40
[1.00]
2
1-1/16 -12 UN
1
3
4
PC12-LPS-5.5-B-00
Housing and ports
00 = No Housing
3B = Al, 1/2 BSP
4B = Al, 3/4 BSP
10S = Al, #10 SAE
12S = Al, #12 SAE
Housing Part #
No Housing
CP12-4-3B
CP12-4
-4B
CP12-4-10S
CP12-4-12S
Differential Control Pressure
5.5 = 5.5 bar [80 psi]
7.0 = 7 bar [100 psi]
10.0 = 10.0 bar [150 psi]
Seals Seal Kit
B = Buna-N 120262
V = Viton 120263
Cross-sectional view
mm [in]
Pressure Compensator
PC12-LPS