Pilot Operated Sequence Valve with Reverse Check | Product Series

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Pilot Operated Sequence Valve with Reverse Check

Pilot Operated Sequence Valve with Reverse Check

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REGIONAL - Parker's pilot operated sequence valve with reverse check combines two functions into a single cartridge reducing space, components, and manifold complexity. Capable of flows up to 70 lpm (32 gpm) and pressures up to 420 bar (6000 psi).

Technical Specifications

  • Flow Rate: 18.5 gal/min, 70 L/min
  • Pressure Control Range: 145 to 3000 psi, 145 to 6000 psi, 10 to 210 bar, 10 to 420 bar
  • Adjustment Mechanism: Knob, Screw, Tamper Resistant
  • Seal Material: Nitrile, Fluorocarbon
  • Maximum Flow Rate: 18.5 gal/min, 70 L/min
  • Maximum Inlet Pressure Rating: 6000 psi, 420 bar
  • Maximum Operating Pressure: 6000 psi, 420 bar
  • Maximum Tank Pressure: 6000 psi, 420 bar
  • Standard Setting Pressure: 1450, 2900 psi, 100, 200 bar
  • Maximum Pressure Setting: 3000, 6000 psi, 210, 420 bar
  • Pressure Control Sensitivity: 435 per turn, 800 per turn psi, 30 per turn, 55 per turn bar
  • Leak Rate: 50 @ 1450 psi (100 bar) drops/min
  • Drain Option: External
  • Pilot Location: Internal
  • Mounting Type: Screw in cartridge valve
  • Actuation Type: Pressure Sensing
  • Configuration: Reverse Flow Check
  • Cavity Size: C10-3S
  • Function: Pilot Operated Sequence
  • Operation Type: Automatic
  • For Fluid Type: Mineral-based or synthetic hydraulic fluids
  • Maximum Kinematic Viscosity: 45-2000 SSU (6 to 420 cSt)
  • Filter Efficiency Rating: ISO 4406 18/16/13, SAE Class 4
  • Valve Material: All parts steel. All operating parts hardened steel
  • Installation Torque: 37 lb-ft, 50 Nm
  • Operating Temperature: -30 to +250, -15 to +400 °F, -34 to +121, -26 to +204 °C
  • Maximum Operating Temperature: +250, +400 °F, +121, +204 °C
  • Minimum Operating Temperature: -30, -15 °F, -34, -26 °C
  • Weight: 0.55 lb, 0.25 kg
  • Body Material: N/A
Safety Warning

Full Product Description

Parker’s pilot operated sequence valve with a built-in reverse check reduces manifold space, complexity, and the number of components in a hydraulic system. These valves can work with pressures up to 420 bar (6000 psi) and flows up to 70 lpm (18.5 gpm) and allow for multiple double acting functions to be operated with a single directional control valve. Parker’s pilot operated sequence valve with a built-in reverse check can be utilized in several applications, but is ideal for load control and clamping or press applications within mobile and industrial markets.

Markets:
• Miscellaneous Industrial
• Miscellaneous Manufacturing
• Miscellaneous Mobile

Features/Benefits:
• High pressure and flow capacity
• Integrated 250 micron screen
• Hardened, precision ground parts for durability
• All external parts zinc plated

Applications:
• Clamping
• Load holding
• Actuator control
• Motor control

Additional Technical Insight:
B04D3 is an internally piloted and externally drained sequence valve with an integrated reverse free flow check valve.  When pressure is below the sequence setting the valve is normally closed.  Once the pressure setting is reached the valve is internally piloted open allowing flow to a secondary branch of the circuit.  Flow from the secondary branch is allowed to free flow back to the primary branch via the reverse flow check.  The external drain should be plumbed directly back to tank to prevent downstream pressure from adding to the sequence setting.  Two adjustable pressure ranges are standard for 3000 or 6000 PSI maximum operating pressures, and each version is capable of flows up to 32 GPM.   Screw, knob, and tamper-resistant adjustment options are available.

Combining a sequencing function and reverse flow check into a single size 10 cartridge reduces manifold space, complexity and the number of components.  The integrated check valve reduces internal drillings and can also allow for multiple double acting functions to be operated with a single directional control valve.  Parker’s B04D3 offers design flexibility that can be utilized in many applications including:  Clamp and Drill, Machine Tools, Presses, Power Units, Material Handling, Construction, and Agriculture.

Related Documents

Literature and Reference Materials
HVS Global Cartridge Valve Catalog MSG15-3504
MSG15-3504 Pressure Control Valves Catalog Pages - All
Pressure Control Valves Technical Tips
Selector Guides
Competitive Crossover Tool
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Products Flow Rate Pressure Control Range Adjustment Mechanism Seal Material
B04D3HZN 18.5 GAL/MIN, 70 L/MIN 145-3000 PSI, 10-210 BAR Screw Nitrile
B04D3HZV 18.5 GAL/MIN, 70 L/MIN 145-3000 PSI, 10-210 BAR Screw Fluorocarbon
B04D3HWN 18.5 GAL/MIN, 70 L/MIN 145-3000 PSI, 10-210 BAR Knob Nitrile
B04D3HWV 18.5 GAL/MIN, 70 L/MIN 145-3000 PSI, 10-210 BAR Knob Fluorocarbon
B04D3HTN 18.5 GAL/MIN, 70 L/MIN 145-3000 PSI, 10-210 BAR Tamper Resistant Nitrile
B04D3HTV 18.5 GAL/MIN, 70 L/MIN 145-3000 PSI, 10-210 BAR Tamper Resistant Fluorocarbon
B04D3PZN 18.5 GAL/MIN, 70 L/MIN 145-6000 PSI, 10-420 BAR Screw Nitrile
B04D3PZV 18.5 GAL/MIN, 70 L/MIN 145-6000 PSI, 10-420 BAR Screw Fluorocarbon
B04D3PWN 18.5 GAL/MIN, 70 L/MIN 145-6000 PSI, 10-420 BAR Knob Nitrile
B04D3PWV 18.5 GAL/MIN, 70 L/MIN 145-6000 PSI, 10-420 BAR Knob Fluorocarbon
B04D3PTN 18.5 GAL/MIN, 70 L/MIN 145-6000 PSI, 10-420 BAR Tamper Resistant Nitrile
B04D3PTV 18.5 GAL/MIN, 70 L/MIN 145-6000 PSI, 10-420 BAR Tamper Resistant Fluorocarbon

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