LPOSRV2PHK-M36

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Description

A pilot-operated, pressure limitation and feed valve with hydraulic pressure sequencing stage

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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.
    Pressure at ② is directly additive to the relief setting of the valve.
    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.
    By connecting pilot oil pressure to the external port ③ , the control piston is pressurized.
    This increases the preload of the main spring and the maximum set system pressure.

  • PerformanceCurves

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  • Technical Data

    Operating Pressure
    420bar
    Flow
    See PRESSURE DROP VS.FLOW graph.
    Cavity
    Rexroth-LM
    Filtration
    Refer to "Cleanliness of Hydraulic Fluid"
    Internal Leakage
    10 drops/min max. to 80% of nominal setting
    Temperature
    -40ºF to +250ºF(-40ºC to +120ºC)
    Fluids
    Mineral-based fluids with viscosities of 7.4 to 420 cSt.
    Body Material
    Steel & Ductile iron rated to 350bar
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