MHDR4K-M14

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Description

A cartridge-style direct-acting poppet-type relief valve

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  • Technical Feature

    OPERATION:

    The valve prevents flow from to until the set Cracking Pressure at is achieved.
    The poppet then unseats allowing flow from
    to protecting the circuit from over
    pressurization.

  • PerformanceCurves

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  • Technical Data

    Operating Pressure
    500Bar
    Flow
    See PRESSURE DROP VS.FLOW graph.
    Cavity
    Rexroth R/DBD.4K
    Filtration
    Refer to "Cleanliness of Hydraulic Fluid"
    Internal Leakage
    5 drops/min. max. to 80% of nominal setting
    Reseat Pressure
    80% of crack pressure (crack pressure at 0.95 lpm /0.25 gpm)
    Standard Spring Ranges
    25 to 500 bar; preset: 200 bar
    Temperature
    -40°F to +250°F(-40°C to +120°C)
    Fluids
    Mineral-based fluids with viscosities of 7.4 to 420 cSt.
    Body Material
    Steel & Ductile iron rated to 350bar
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