Parker MHB-030-WEAE-52E - Standard Pilot Vented Load Control Valves

Parker’s vented load control valves are designed to operate independent of downstream pressure to prevent runaway loads under all dynamic conditions, handling pressures up to 350 bar (5000 psi) and flows up to 113 lpm (30 gpm).
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Brand Parker
Part No. MHB-030-WEAE-52E
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Products specifications
Attribute nameAttribute value
Seal MaterialNitrileDivisionHydraulic Cartridge Systems Division
DivisionHydraulic Systems DivisionPilot LocationExternal
Maximum Kinematic Viscosity45-2000 SSU (6 to 420 cSt)Body MaterialAluminum
Maximum Operating Pressure210 barMinimum Operating Temperature-34 °C
Cavity Sizen/aAdjustment MechanismTamper Resistant
Weight1.13 kgFunctionCounterbalance Valve
Maximum Inlet Pressure Rating210 barMaximum Operating Temperature+121 °C
For Fluid TypeMineral-based or synthetic hydraulic fluidsValve MaterialAll parts steel. All operating parts hardened steel
Operating Temperature-30 to +250 °FFilter Efficiency RatingISO 4406 18/16/13, SAE Class 4
Actuation TypePilot Operated, VentedInstallation TorqueN/A lb-ft
Mounting TypeSingle InlineFlow DirectionCylinder port C, Valve port V, Pilot port P
Leak Rate5 @ 80% of setting drops/minPort SizeSAE-8
Holding Pressure1500 psiPilot Pressure Ratio6:1
Pressure Control Range34.5-103.4 barPressure Control SensitivityN/A bar
Flow Rate112.5 L/minMaximum Flow Rate112.5 L/min
Seal MaterialNitrileAdjustment MechanismTamper Resistant
Pressure Control Range500-1500 PSI, 34.5-103.4 BARPort SizeSAE-8
Mounting TypeSingle InlineHolding Pressure1500 PSI, 105 BAR
Pilot Pressure Ratio6:1Maximum Flow Rate30 GAL/MIN, 112.5 L/MIN
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