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Picture of Parker MHB-030-LBBH-52E - Standard Pilot Assisted Load Control Valves

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Parker MHB-030-LBBH-52E - Standard Pilot Assisted Load Control Valves

Parker’s piloted load control valves are designed to operate independent of downstream pressure to prevent runaway loads under dynamic conditions using a pilot signal, handling pressures up to 420 bar (6000 psi) and flows up to 350 lpm (90 gpm).
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Brand Parker
Part No. MHB-030-LBBH-52E
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Products specifications
Attribute nameAttribute value
Maximum Operating Pressure3000 psiSeal MaterialNitrile
Actuation TypePilot OperatedDivisionHydraulic Cartridge Systems Division
DivisionHydraulic Systems DivisionPilot LocationExternal
Maximum Kinematic Viscosity45-2000 SSU (6 to 420 cSt)Minimum Operating Temperature-30 °F
Body MaterialAluminumWeight2.5 lb
Cavity Sizen/aAdjustment MechanismTamper Resistant
Maximum Flow Rate30 Gal/minFunctionCounterbalance Valve
Pilot Pressure Ratio3:1Holding Pressure3000 psi
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-34 to +121 °CFilter Efficiency RatingISO 4406 18/16/13, SAE Class 4
Installation TorqueN/A NmFlow DirectionCylinder port C, Valve port V, Pilot port P
Leak Rate5 @ 80% of setting drops/minPort SizeSAE-8
Mounting TypeSingle GasketPressure Control Range105-210 bar
Pressure Control SensitivityN/A psiFlow Rate112.5 L/min
Seal MaterialNitrileAdjustment MechanismTamper Resistant
Holding Pressure3000 PSI, 210 BARPilot Pressure Ratio3:1
Port SizeSAE-8Mounting TypeSingle Gasket
Pressure Control Range1500-3000 PSI, 105-210 BARMaximum Flow Rate30 GAL/MIN, 112.5 L/MIN
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