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Standard Pilot Vented Load Control Valves

Picture for category Standard Pilot Vented Load Control Valves

*PRODUCT IMAGE IS REPRESENTATIVE PROVIDED BY THE MANUFACTURER. DO NOT MAKE BUYING DECISIONS SOLEY BASED ON THE IMAGE. PLEASE VERIFY SPECIFICATIONS MEET YOUR REQUIREMENTS.

Parker’s vented to atmosphere load holding/counterbalance valves are a combination of a relief, sequence, and flow control valve that can handle pressures up to 350 bar (5000 psi) and flows up to 113 lpm (30 gpm). These robust valves allow the operator to maintain control of the load by preventing it from overrunning the pump while also protecting against thermal expansion. The wide selection of pilot ratios enables the valve to open at pressures much lower than the spring pressure setting, allowing consistent control of the load throughout its lowering cycle. Because these valves spring chamber are vented to atmosphere, the valve will not be affected by changes in return pressure. Parker’s vented load holding valves are ideal in closed center circuits where there is need to control pressure using an auxiliary relief valve.

Markets:
• Aerial
• Construction Equipment
• Material Handling Equipment
• Miscellaneous Industrial
• Miscellaneous Mobile

Features/Benefits:
• Vented to atmosphere, no additional drain line required
• Hardened, precision ground parts for durability
• Poppet style construction with minimal leakage
• Tamperproof versions available
• Single cartridge valve with integral reverse flow check valve
• Available pilot ratios from 8:1 to 3:1
• All external parts zinc plated

Applications:
• Load holding
• Position holding

Additional Technical Insight:
The load control valves are load assisted i.e the pilot pressure acts on the difference between the setting and the load at the pilot ratio.
The valve should always be set at a minimum of 30% higher than the maximum load induced pressure to ensure the valve closes correctly.
Sizing a counterbalance valve needs care in that the flow required is usually higher than system pump flow, as in the case with a cylinder application (retract flow could be twice the system flow) though oversizing the valve could cause instability.
Because of  dynamic load variations in many applications, it may be necessary to use a lower pilot ratio or fit an orifice in the pilot line in order to gain stability.
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ActionSKUAvailabilityPriceBody MaterialMaximum Operating PressureMaximum Flow RateSeal MaterialPort SizeMinimum Operating TemperatureDivisionPilot LocationWeightDivisionMaximum Inlet Pressure RatingPort Thread SizeFunctionMounting TypeAdjustment MechanismMaximum Kinematic ViscosityFlow RateCavity SizeInstallation TorqueFor Fluid TypeMaximum Operating TemperatureValve MaterialOperating TemperatureFilter Efficiency RatingLeak RateFlow DirectionHolding PressurePilot Pressure RatioPressure Control RangeActuation TypePressure Control SensitivityPort SizeSeal MaterialAdjustment MechanismMounting TypeHolding PressurePilot Pressure RatioPressure Control RangeMaximum Flow Rate
E6A060ZN409
Backordered
POR
N/A350 bar180 L/minNitrilen/a-30 °FHydraulic Cartridge Systems DivisionExternal0.53 kgMobile Hydraulic Systems Division Europe5000 psin/aCounterbalance ValveThreaded Cartridge ValveScrew AdjustmentMineral-based or synthetic with lubricating properties at viscosities of 45-2000 SSU (6 to 420 cSt) cSt48 Gal/min3C85 NmMineral-based or synthetic hydraulic fluids+250 °FAll parts steel. All operating parts hardened steel-30 to +250 °FISO 4406 18/16/13, SAE Class 46 @ 1450 PSI (100 BAR) drops/minCylinder port 1, Valve port 2, Pilot port 33120 psi8:01725-5000 psiPilot Operated, Vented50 per turn barn/aNitrileScrewThreaded Cartridge Valve3120 PSI, 215 BAR8:1725-5000 PSI, 50-350 BAR48 GAL/MIN, 180 L/MIN
E6B020ZN
Backordered
POR
N/A420 bar5.3 Gal/minNitrilen/a-30 °FHydraulic Cartridge Systems DivisionExternal0.08 kgMobile Hydraulic Systems Division Europe420 barn/aCounterbalance ValveThreaded Cartridge ValveScrew AdjustmentMineral-based or synthetic with lubricating properties at viscosities of 45-2000 SSU (6 to 420 cSt) cSt20 L/min53-130 NmMineral-based or synthetic hydraulic fluids+121 °CAll parts steel. All operating parts hardened steel-30° to +250° °FISO 4406:1999 Code 18/16/136 @ 1450 PSI (100 BAR) drops/minCylinder port 1, Valve port 2, Pilot port 3215 bar4.5:150-420 barPilot Operated, Vented84 per turn barn/aNitrileScrewThreaded Cartridge Valve3120 PSI, 215 BAR4.5:1725-6000 PSI, 50-420 BAR5.3 GAL/MIN, 20 L/MIN
E6B020ZV
Backordered
POR
N/A420 bar5.3 Gal/minFluorocarbonn/a-15 °FHydraulic Cartridge Systems DivisionExternal0.18 lbMobile Hydraulic Systems Division Europe6000 psin/aCounterbalance ValveThreaded Cartridge ValveScrew Adjustment45-2000 SSU (6 to 420 cSt)5.3 Gal/min53-130 NmMineral-based or synthetic hydraulic fluids+204 °CAll parts steel. All operating parts hardened steel-15° to +400° °FISO 4406:1999 Code 18/16/136 @ 1450 PSI (100 BAR) drops/minCylinder port 1, Valve port 2, Pilot port 33120 psi4.5:150-420 barPilot Operated, Vented84 per turn barn/aFluorocarbonScrewThreaded Cartridge Valve3120 PSI, 215 BAR4.5:1725-6000 PSI, 50-420 BAR5.3 GAL/MIN, 20 L/MIN
E6B040ZNMK3
Backordered
POR
N/A5000 psi60 L/minNitrilen/a-34 °CHydraulic Cartridge Systems DivisionExternal0.73 lbMobile Hydraulic Systems Division Europe350 barn/aCounterbalance ValveThreaded Cartridge ValveScrewMineral-based or synthetic with lubricating properties at viscosities of 45-2000 SSU (6 to 420 cSt) cSt60 L/min68-140 lb-ftMineral-based or synthetic hydraulic fluids+250 °FAll parts steel. All operating parts hardened steel-34° to +121° °CISO 4406:1999 Code 18/16/136 @ 1450 PSI (100 BAR) drops/minCylinder port 1, Valve port 2, Pilot port 3215 bar3:0150-350 barPilot Operated, Vented1335 per turn psin/aNitrileScrewThreaded Cartridge Valve3120 PSI, 215 BAR3:1725-5000 PSI, 50-350 BAR15.9 GAL/MIN, 60 L/MIN
E6B060ZN409
Backordered
POR
N/A350 bar180 L/minNitrilen/a-34 °CHydraulic Cartridge Systems DivisionExternal1.17 lbMobile Hydraulic Systems Division Europe350 barn/aCounterbalance ValveThreaded Cartridge ValveScrew45-2000 SSU (6 to 420 cSt)48 Gal/min3C63 lb-ftMineral-based or synthetic hydraulic fluids+121 °CAll parts steel. All operating parts hardened steel-34° to +121° °CISO 4406 18/16/13, SAE Class 46 @ 1450 PSI (100 BAR) drops/minCylinder port 1, Valve port 2, Pilot port 3215 bar3:150-350 barPilot Operated, Vented50 per turn barn/aNitrileScrewThreaded Cartridge Valve3120 PSI, 215 BAR3:1725-5000 PSI, 50-350 BAR48 GAL/MIN, 180 L/MIN
E6B060ZV409
Backordered
POR
N/A5000 psi180 L/minFluorocarbonn/a-26 °CHydraulic Cartridge Systems DivisionExternal0.53 kgMobile Hydraulic Systems Division Europe5000 psin/aCounterbalance ValveThreaded Cartridge ValveScrew AdjustmentMineral-based or synthetic with lubricating properties at viscosities of 45-2000 SSU (6 to 420 cSt) cSt48 Gal/min3C63 lb-ftMineral-based or synthetic hydraulic fluids+400 °FAll parts steel. All operating parts hardened steel-26 to +204 °CISO 4406:1999 Code 18/16/136 @ 1450 PSI (100 BAR) drops/minCylinder port 1, Valve port 2, Pilot port 33120 psi3:01725-5000 psiPilot Operated, Vented50 per turn barn/aFluorocarbonScrewThreaded Cartridge Valve3120 PSI, 215 BAR3:1725-5000 PSI, 50-350 BAR48 GAL/MIN, 180 L/MIN
E6K020ZN
Backordered
POR
N/A5000 psi20 L/minNitrilen/a-30 °FHydraulic Cartridge Systems DivisionExternal0.08 kgMobile Hydraulic Systems Division Europe5000 psin/aCounterbalance ValveThreaded Cartridge ValveScrew45-2000 SSU (6 to 420 cSt)5.3 Gal/min53-130 NmMineral-based or synthetic hydraulic fluids+121 °CAll parts steel. All operating parts hardened steel-34° to +121° °CISO 4406 18/16/13, SAE Class 46 @ 1450 PSI (100 BAR) drops/minCylinder port 1, Valve port 2, Pilot port 33120 psi15:11450-5000 psiPilot Operated, Vented114 per turn barn/aNitrileScrewThreaded Cartridge Valve3120 PSI, 215 BAR15:11450-5075 PSI, 100-350 BAR5.3 GAL/MIN, 20 L/MIN
MHB-015-WBDE-51N
Backordered
POR
Aluminum3000 psi15 Gal/minNitrileSAE-6-30 °FHydraulic Cartridge Systems DivisionInternal1.36 kgHydraulic Systems Division3000 psiCounterbalance ValveDouble InlineTamper Resistant45-2000 SSU (6 to 420 cSt)56 L/minn/aN/A lb-ftMineral-based or synthetic hydraulic fluids+250 °FAll parts steel. All operating parts hardened steel-30 to +250 °FISO 4406 18/16/13, SAE Class 45 @ 80% of setting drops/minCylinder port C, Valve port V210 bar3:1105-210 barPilot Operated, VentedN/A psiSAE-6NitrileTamper ResistantDouble Inline1500 PSI, 103.4 BAR3:1500-1500 PSI, 34.5-103.4 BAR15 GAL/MIN, 56 L/MIN
MHB-015-WBEH-52N
Backordered
POR
Aluminum3000 psi15 Gal/minNitrileSAE-8-34 °CHydraulic Cartridge Systems DivisionInternal3 lbHydraulic Systems Division210 barCounterbalance ValveDouble GasketTamper Resistant45-2000 SSU (6 to 420 cSt)15 Gal/minn/aN/A NmMineral-based or synthetic hydraulic fluids+250 °FAll parts steel. All operating parts hardened steel-30 to +250 °FISO 4406 18/16/13, SAE Class 45 @ 80% of setting drops/minCylinder port C, Valve port V3000 psi3:1105-210 barPilot Operated, VentedN/A psiSAE-8NitrileTamper ResistantDouble Gasket3000 PSI, 210 BAR3:11500-3000 PSI, 105-210 BAE15 GAL/MIN, 56 L/MIN
MHB-030-WABC-52E
Backordered
POR
Aluminum3000 psi30 Gal/minNitrileSAE-8-34 °CHydraulic Cartridge Systems DivisionExternal1.13 kgHydraulic Systems Division210 barCounterbalance ValveSingle GasketTamper Resistant45-2000 SSU (6 to 420 cSt)112.5 L/minn/aN/A lb-ftMineral-based or synthetic hydraulic fluids+121 °CAll parts steel. All operating parts hardened steel-34 to +121 °CISO 4406 18/16/13, SAE Class 45 @ 80% of setting drops/minCylinder port C, Valve port V, Pilot port P500 psi1:1250-500 psiPilot Operated, VentedN/A barSAE-8NitrileTamper ResistantSingle Gasket500 PSI, 34.5 BAR1:1250-500 PSI, 17.2-34.5 BAR30 GAL/MIN, 112.5 L/MIN
MHB-030-WADC-52N
Backordered
POR
Aluminum210 bar30 Gal/minNitrileSAE-8-34 °CHydraulic Cartridge Systems DivisionInternal2.05 kgHydraulic Systems Division3000 psiCounterbalance ValveDouble InlineTamper Resistant45-2000 SSU (6 to 420 cSt)30 Gal/minn/aN/A lb-ftMineral-based or synthetic hydraulic fluids+121 °CAll parts steel. All operating parts hardened steel-34 to +121 °CISO 4406 18/16/13, SAE Class 45 @ 80% of setting drops/minCylinder port C, Valve port V500 psi1:1250-500 psiPilot Operated, VentedN/A barSAE-8NitrileTamper ResistantDouble Inline500 PSI, 34.5 BAR1:1250-500 PSI, 17.2-34.5 BAR30 GAL/MIN, 112.5 L/MIN
MHB-030-WBAE-52E
Backordered
POR
Aluminum210 bar30 Gal/minNitrileSAE-8-30 °FHydraulic Cartridge Systems DivisionExternal1.13 kgHydraulic Systems Division3000 psiCounterbalance ValveSingle InlineTamper Resistant45-2000 SSU (6 to 420 cSt)30 Gal/minn/aN/A lb-ftMineral-based or synthetic hydraulic fluids+250 °FAll parts steel. All operating parts hardened steel-34 to +121 °CISO 4406 18/16/13, SAE Class 45 @ 80% of setting drops/minCylinder port C, Valve port V, Pilot port P105 bar3:1500-1500 psiPilot Operated, VentedN/A barSAE-8NitrileTamper ResistantSingle Inline1500 PSI, 105 BAR3:1500-1500 PSI, 34.5-103.4 BAR30 GAL/MIN, 112.5 L/MIN
MHB-030-WBAH-52E
Backordered
POR
Aluminum3000 psi112.5 L/minNitrileSAE-8-34 °CHydraulic Cartridge Systems DivisionExternal2.5 lbHydraulic Systems Division3000 psiCounterbalance ValveSingle InlineTamper Resistant45-2000 SSU (6 to 420 cSt)30 Gal/minn/aN/A NmMineral-based or synthetic hydraulic fluids+121 °CAll parts steel. All operating parts hardened steel-34 to +121 °CISO 4406 18/16/13, SAE Class 45 @ 80% of setting drops/minCylinder port C, Valve port V, Pilot port P3000 psi3:11500-3000 psiPilot Operated, VentedN/A barSAE-8NitrileTamper ResistantSingle Inline3000 PSI, 210 BAR3:1105-210 B30 GAL/MIN, 112.5 L/MIN
MHB-030-WEAE-52E
Backordered
POR
Aluminum210 bar112.5 L/minNitrileSAE-8-34 °CHydraulic Cartridge Systems DivisionExternal1.13 kgHydraulic Systems Division210 barCounterbalance ValveSingle InlineTamper Resistant45-2000 SSU (6 to 420 cSt)112.5 L/minn/aN/A lb-ftMineral-based or synthetic hydraulic fluids+121 °CAll parts steel. All operating parts hardened steel-30 to +250 °FISO 4406 18/16/13, SAE Class 45 @ 80% of setting drops/minCylinder port C, Valve port V, Pilot port P1500 psi6:134.5-103.4 barPilot Operated, VentedN/A barSAE-8NitrileTamper ResistantSingle Inline1500 PSI, 105 BAR6:1500-1500 PSI, 34.5-103.4 BAR30 GAL/MIN, 112.5 L/MIN
MHB-030-WEAH-52E
Backordered
POR
Aluminum210 bar112.5 L/minNitrileSAE-8-30 °FHydraulic Cartridge Systems DivisionExternal1.13 kgHydraulic Systems Division3000 psiCounterbalance ValveSingle InlineTamper Resistant45-2000 SSU (6 to 420 cSt)112.5 L/minn/aN/A NmMineral-based or synthetic hydraulic fluids+121 °CAll parts steel. All operating parts hardened steel-34 to +121 °CISO 4406 18/16/13, SAE Class 45 @ 80% of setting drops/minCylinder port C, Valve port V, Pilot port P3000 psi6:11500-3000 psiPilot Operated, VentedN/A barSAE-8NitrileTamper ResistantSingle Inline3000 PSI, 210 BAR6:1105-210 B30 GAL/MIN, 112.5 L/MIN
MHB-030-WEBH-52E
Backordered
POR
Aluminum210 bar30 Gal/minNitrileSAE-8-30 °FHydraulic Cartridge Systems DivisionExternal2.5 lbHydraulic Systems Division3000 psiCounterbalance ValveSingle GasketTamper Resistant45-2000 SSU (6 to 420 cSt)30 Gal/minn/aN/A lb-ftMineral-based or synthetic hydraulic fluids+250 °FAll parts steel. All operating parts hardened steel-30 to +250 °FISO 4406 18/16/13, SAE Class 45 @ 80% of setting drops/minCylinder port C, Valve port V, Pilot port P210 bar6:1105-210 barPilot Operated, VentedN/A psiSAE-8NitrileTamper ResistantSingle Gasket3000 PSI, 210 BAR6:1105-210 B30 GAL/MIN, 112.5 L/MIN
MHB-030-WEDH-52N
Backordered
POR
Aluminum3000 psi30 Gal/minNitrileSAE-8-34 °CHydraulic Cartridge Systems DivisionInternal2.05 kgHydraulic Systems Division210 barCounterbalance ValveDouble InlineTamper Resistant45-2000 SSU (6 to 420 cSt)30 Gal/minn/aN/A lb-ftMineral-based or synthetic hydraulic fluids+121 °CAll parts steel. All operating parts hardened steel-30 to +250 °FISO 4406 18/16/13, SAE Class 45 @ 80% of setting drops/minCylinder port C, Valve port V210 bar6:1105-210 barPilot Operated, VentedN/A barSAE-8NitrileTamper ResistantDouble Inline3000 PSI, 210 BAR6:1105-210 B30 GAL/MIN, 112.5 L/MIN
MHB-030-WJAH-52E
Backordered
POR
Aluminum3000 psi112.5 L/minNitrileSAE-8-34 °CHydraulic Cartridge Systems DivisionExternal1.13 kgHydraulic Systems Division210 barCounterbalance ValveSingle InlineTamper Resistant45-2000 SSU (6 to 420 cSt)30 Gal/minn/aN/A NmMineral-based or synthetic hydraulic fluids+121 °CAll parts steel. All operating parts hardened steel-34 to +121 °CISO 4406 18/16/13, SAE Class 45 @ 80% of setting drops/minCylinder port C, Valve port V, Pilot port P3000 psi10:11500-3000 psiPilot Operated, VentedN/A psiSAE-8NitrileTamper ResistantSingle Inline3000 PSI, 210 BAR10:1105-210 B30 GAL/MIN, 112.5 L/MIN
MHB-030-WJBH-52E
Backordered
POR
Aluminum210 bar30 Gal/minNitrileSAE-8-30 °FHydraulic Cartridge Systems DivisionExternal2.5 lbHydraulic Systems Division210 barCounterbalance ValveSingle GasketTamper Resistant45-2000 SSU (6 to 420 cSt)112.5 L/minn/aN/A lb-ftMineral-based or synthetic hydraulic fluids+250 °FAll parts steel. All operating parts hardened steel-30 to +250 °FISO 4406 18/16/13, SAE Class 45 @ 80% of setting drops/minCylinder port C, Valve port V, Pilot port P3000 psi10:1105-210 barPilot Operated, VentedN/A barSAE-8NitrileTamper ResistantSingle Gasket3000 PSI, 210 BAR10:1105-210 B30 GAL/MIN, 112.5 L/MIN
MHC-010-VASC-00B
Backordered
POR
N/A350 bar10 Gal/minNitrilen/a-30 °FHydraulic Cartridge Systems DivisionExternal0.38 kgHydraulic Systems Division350 barCounterbalance ValveThreaded Cartridge ValveStandard (adjustable)45-2000 SSU (6 to 420 cSt)10 Gal/minCDD-101068-75 NmMineral-based or synthetic hydraulic fluids+121 °CAll parts steel. All operating parts hardened steel-34 to +121 °CISO 4406 18/16/13, SAE Class 45 @ 80% of setting drops/minCylinder port 2, Valve port 3, Pilot port 1500 psi1:1N/A psiPilot Operated, VentedN/A psin/aNitrileStandard (adjustable)Threaded Cartridge Valve500 PSI, 34.5 BAR1:1N/A10 GAL/MIN, 37.5 L/MIN

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