Counterbalance Valve - Series ZNS | #098-91280-0


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Counterbalance Valve - Series ZNS | #098-91280-0

ZNS-AB015S0D5


Technical Specifications

  • Port Connection: NG06 / CETOP 03
  • Pressure Control Range: 140 - 350 bar
  • Function: Pressure control in A and B
  • Seal Material: FPM
  • Adjustment Mechanism: Hexagon Screw with Lock Nut
  • Mounting Type: Sandwich Plate
  • Operation Type: Pilot
  • Product Series: Counterbalance Valve
  • Maximum Operating Pressure: 350 bar
  • Flow Rate: 60 L/min
  • Maximum Flow Rate: n/a
  • Maximum Operating Temperature: 60 L/min
  • Minimum Operating Temperature: -20 L/min
  • Seal Material: NBR
  • Configuration: n/a
  • For Fluid Type: Hydraulic Oil According to DIN 51524
  • Function: Load Holding
  • Body Material: Steel
  • Pressure Control Range: n/a
  • Maximum Pressure Setting: 140 to 350 bar
  • Actuation Type: Oil Pilot
Safety Warning

Item Information

Parker counterbalance valves series ZNS in sandwich design control the actuator movement at overrunning loads via a leak-free poppet valve. Thereby they enable a reliable operation and a linear lowering speed of the cylinder.

The return flow from the actuator is piloted and controlled by the inlet flow to the actuator, ensuring a cavitation-free lowering of the load. The counter balance valve operates as a pressure relief valve. The setting pressure is lowered by the pressure in the inlet line.

Markets:
• Industrial
• Machine tools

Features/Benefits:
• Compact, proven design that represents our long-term experience in hydraulics
• Controlled movement loads - prevents cavitation
• Load holding via leak-free poppet valve - ensures reliable operation
• Short delivery time - no warehousing necessary
• Available in two sizes:
    - ZNS*01 – NG06 (CETOP 03)
    - ZNS*02 – NG10 (CETOP 05)
• Secondary relief protection for the actuator

Applications:
• Suitable for general hydraulic applications
• Machine tools

Please note:
To ensure safe load holding the setting pressure should be approximately 30 % higher than the max. load pressure.

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0027 11 961 0700

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