Parker Hydraulic Group
ZNS Series Counterbalance Valve

Mounting Pattern

  • NFPA D03, NFPA D05
  • CETOP 3, CETOP 5
  • ISO NG6, NG10

Key Features

  • Controls the actuator movement at overrunning loads
  • Return flow from the actuator is piloted and controlled by the inlet flow to the actuator

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  • Controlled movement loads.
  • Load holding via leak-free poppet valve.
  • Secondary relief protection for the actuator.
  • Sizes: ZNS*01 ? NFPA D03 / NG6 / CETOP 3 ZNS*02 ? NFPA D05 / NG10 / CETOP 5