LE - Logic Elements
LE - 12
11141720 • Rev AD • April 2015
Logic Elements Catalog
PERFORMANCE CURVE
APPLICATION
SPECIFICATION
OPERATION
SCHEMATIC
26 cSt [125 SUS] hyd.oil @ 20° C [68° F]
0102
04030
US gal/min
050 100 150 200
l/min
0
5
10
15
20
0
50
100
150
200
250
psi
bar
flow
The VLP 12/P2 is a metric 12-size, normally-closed, vent-to-open, poppet-type,
double-blocking, spring biased dierential-sensing logic element. It will provide
on/o ow control from 1 to 2 based on the spring control pressure, inlet
pressure at port 1, and pilot pressure at port 3.
Rated pressure 315 bar [4500 psi]
Rated ow at 7 bar
[100 psi]
160 l/min
[42 US gal/min]
Weight 0.30 kg [0.66 lb]
Cavity NCS12/3
Bias spring 2 bar [29 psi]
Theoretical performance
VLP 12/P2
Poppet Type, Double-Blocking
VLP 12/P2
The valve provides on/o, leakage-free control in both directions, suitable for use as a
high ow relief valve when used with a relief valve to pilot. Common applications include:
pump unloading, pilot-operated relief valve, sequence valve and selector circuit. Eective
use of logic elements is a key to designing cost-eective circuits, and is limited only by the
imagination of the designer.