Pilot Operated Spool Type Kick Down Relief Valve | Product Series

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Pilot Operated Spool Type Kick Down Relief Valve

Pilot Operated Spool Type Kick Down Relief Valve

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REGIONAL - Parker’s kick-down pilot operated spool type sequence valve is a hydraulic fuse used to unload flow once the pressure setting is reached, resets when less than 45 psi. Flows up to 160 lpm (42 gpm) and pressures up to 420 bar (6000 psi).

Technical Specifications

  • Flow Rate: 42 gal/min, 160 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: 42 gal/min, 160 L/min
  • Maximum Inlet Pressure Rating: 6000 psi, 420 bar
  • Weight: 0.64 lb, 0.29 kg
  • 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
  • Actuation Type: Pressure Sensing
  • Configuration: Kick Down
  • Leak Rate: 25 @ 725 psi (50 bar) cm3/min
  • Mounting Type: Screw in cartridge valve
  • Cavity Size: C10-2
  • Function: Pilot Operated, Spool
  • 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
  • Body Material: N/A
Safety Warning

Full Product Description

Parker’s kick-down pilot operated spool type sequence valve provides fast responding and reliable performance for hydraulic circuits that require pressure to be eliminated once the max setting is achieved. These valves can work with pressures up to 420 bar (6000 psi) and flows up to 160 lpm (42 gpm) and can be considered a hydraulic fuse. Parker’s kick-down pilot operated spool type sequence valve is intended for clamping or press applications that don’t have strict leakage requirements within industrial markets, but can also be use in mobile applications such as when attachments or implements are used with hydraulic quick couplers and a fixed displacement pump.

Markets:
• Agriculture
• Aerial
• Construction
• 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
• Power units
• Attachments/implements with quick disconnects

Additional Technical Insight:
This valve is best described as a pilot operated relief valve with a circuit breaker effect.  The setting of the valve to open is adjustable, but reset pressure is always 45 psi. Once tripped open, the valve will remain open and flow through port 2 will continue until the pressure presented to port 1 is less than the bias pressure to hold the valve open, which is 45 psi/3 bar.  Once the valve “trips” open, it provides a dynamic signal to the operator that a maximum pressure has been reached and the system dynamics need to be addressed.

One must also consider the leakage component as the spool is, by design, going to pass a small leakage flow, whereas a direct acting valve does not pass significant flow until the cracking pressure is reached.

Related Documents

Selector Guides
Competitive Crossover Tool
Literature and Reference Materials
HVS Global Cartridge Valve Catalog MSG15-3504
MSG15-3504 Pressure Control Valves Catalog Pages - All
Pressure Control Valves Technical Tips
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Products Flow Rate Pressure Control Range Adjustment Mechanism Seal Material
A04K2HZN 42 GAL/MIN, 160 L/MIN 144-3000 PSI, 10-210 BAR Screw Nitrile
A04K2HZV 42 GAL/MIN, 160 L/MIN 144-3000 PSI, 10-210 BAR Screw Fluorocarbon
A04K2HWN 42 GAL/MIN, 160 L/MIN 144-3000 PSI, 10-210 BAR Knob Nitrile
A04K2HWV 42 GAL/MIN, 160 L/MIN 144-3000 PSI, 10-210 BAR Knob Fluorocarbon
A04K2HTN 42 GAL/MIN, 160 L/MIN 144-3000 PSI, 10-210 BAR Tamper Resistant Nitrile
A04K2HTV 42 GAL/MIN, 160 L/MIN 144-3000 PSI, 10-210 BAR Tamper Resistant Fluorocarbon
A04K2PZN 42 GAL/MIN, 160 L/MIN 144-6000 PSI, 10-420 BAR Screw Nitrile
A04K2PZV 42 GAL/MIN, 160 L/MIN 144-6000 PSI, 10-420 BAR Screw Fluorocarbon
A04K2PWN 42 GAL/MIN, 160 L/MIN 144-6000 PSI, 10-420 BAR Knob Nitrile
A04K2PWV 42 GAL/MIN, 160 L/MIN 144-6000 PSI, 10-420 BAR Knob Fluorocarbon
A04K2PTN 42 GAL/MIN, 160 L/MIN 144-6000 PSI, 10-420 BAR Tamper Resistant Nitrile
A04K2PTV 42 GAL/MIN, 160 L/MIN 144-6000 PSI, 10-420 BAR Tamper Resistant Fluorocarbon

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