LPOSRV2K-M28
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A pilot-operated pressure limitation and feed valve with external drain port.
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Technical Feature
OPERATION：
The valve prevents flow from ① to ② until pressure at ① exceeds the set Cracking Pressure and opens the pilot section. The pilot flow creates a pressure differential across the poppet which causes the valve to open allowing flow from ① to ② protecting the circuit from over pressurization.
If the pressure at ② is at least 2 bar higher than Pressure at ① . The main poppet will be lifted out of its seat, to allow flow from ② to ①, this feed function is used to make up for lacking hydraulic fluid volumes.
Pressure at port ③ is directly additive to the valve setting at a 1:1 ratio and should not exceed 50bar.
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PerformanceCurves
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Technical Data
Operating Pressure420barFlowSee PRESSURE DROP VS.FLOW graph.CavityRexroth-HCFiltrationRefer to "Cleanliness of Hydraulic Fluid"Internal Leakage10 drops/min max. to 80% of nominal settingTemperature-40ºF to +250ºF(-40ºC to +120ºC)FluidsMineral-based fluids with viscosities of 7.4 to 420 cSt.Body MaterialSteel & Ductile iron rated to 350bar -
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