Cartridge valve
Pressure Valves
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LPPDB
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A cartridge-style pilot-operated pressure reducing/ relieving valve
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Technical Feature
OPERATION
Pilot-operated, pressure reducing/relieving valves reduce a high primary pressure at the
inlet (port ② ) to a constant reduced pressure at port ① , with a full-flow relief function from
port ① to tank (port ③ ).Pressure at port ③ is directly additive to the valve setting at a 1:1
ratio and should not exceed 350 bar.Recommended maximum inlet pressure is determined by the adjustment range.
Ranges D, E, N, and Q are tested with a 2000 psi (140 bar) maximum differential between
inlet and reduced pressure.
Ranges A, B, and H are tested with a 3000 psi (210 bar) maximum differential between inlet
and reduced pressure.
Ranges C, and W are tested with a 5000 psi (350 bar) of inlet pressure. -
PerformanceCurves
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Technical Data
FlowSee PRESSURE DROP VS.FLOW graph.CavityT-11AFiltrationRefer to "Cleanliness of Hydraulic Fluid"Standard Spring RangesA： 7-210bar， preset： 14bar
B： 3.5-105bar， preset： 14bar
N： 4- 55bar， preset： 14bar
Q： 4- 28bar， preset： 14bar
W： 10.5-315bar， preset： 14barAdditional OptionsC： 10.5-420bar， preset： 14bar
D： 1.7-55bar， preset： 14bar
E： 1.7-28bar， preset： 14bar
H： 2-210bar， preset： 14bar
J： 1.7-105bar， preset： 14bar
K： 5-105bar， preset： 14bar
O： 1-28bar， preset： 14bar
P： 2.8-28bar， preset： 14barTemperature-40ºF to +250ºF (-40 ºC to +120 ºC)FluidsMineral-based fluids with viscosities of 7.4 to 420 cSt.Body MaterialSteel & Ductile iron rated to 350Bar -
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