Logic Elements Technical Information
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 flow to port 2 in the required amount (dependent on the load sense pressure on port 1), allowing the excess flow to go to auxiliary functions through port 4.
APPLICATION
Common applications include steering circuits that require pre-compensated, priority flow to go to the steering system, and the excess flow will go to an auxiliary function, like a fan motor. To obtain dynamic load sensing (priority type pre-comp) add in orifice between ports 2 and 1 in the manifold. This provides faster response and is commonly used in steering to flush out LS line. See Circuit Example.
SPECIFICATION |
SCHEMATIC |
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Rated pressure |
210 bar [3045 psi] |
2 4 |
Rated flow at 7 bar |
75 l/min |
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[100 psi] |
[20 US gal/min] |
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Weight |
0.31 kg [0.68 lb] |
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Cavity |
CP12-4 |
1 |
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3 |
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Theoretical performance |
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PERFORMANCE CURVE |
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Pressure drop |
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psi |
bar |
33 cSt[154 SUS] hyd.oil@38 C [100° F] |
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261 |
18 |
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218 |
15 |
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174 |
12 |
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3 to 4, |
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131 |
9 |
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2 Blocked |
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87 |
6 |
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44 |
3 |
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3 to 2 |
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0 |
0 |
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l/min 0 |
20 |
40 |
60 |
80 |
100 |
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USgal/min 0 |
5.3 |
10.7 |
15.8 |
21.1 |
26.4 |
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BC332375783111en-000101 • February 2020 |
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LE - 79 |
Logic Elements Technical Information
Pressure Compensator
PC12-LPS
DIMENSION |
Cross-sectional view |
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mm [in] |
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1-1/16 -12 UN |
1.25 in. |
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68-75 Nm [50-55 lbf-ft] |
1
2 |
3 |
4 |
80.59 |
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25.40 |
[3.17] |
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[1.00] |
EXAMPLE CIRCUITS
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]
Housing and ports |
Housing Part # |
00 = No Housing |
No Housing |
3B = Al, 1/2 BSP |
CP12-4-3B |
4B = Al, 3/4 BSP |
CP12-4-4B |
10S = Al, #10 SAE |
CP12-4-10S |
12S = Al, #12 SAE |
CP12-4-12S |
Seals |
Seal Kit |
B = Buna-N |
120262 |
V = Viton |
120263 |
BC332375783111en-000101 • February 2020 |
LE - 80 |