Counterbalance Valves

Series ZNS

Series CB

Series RG

Series ZNS counterbalance valve controls the actuator movement at overrunning loads.
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 counterbalance valve operates as a pressure relief valve. The setting pressure is lowered by the pressure in the inlet line. To ensure safe load holding the setting pressure should be approximately 30% higher than the max. load pressure.
Series CB counterbalance valve controls the actuator movement with overrunning loads.
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 counterbalance valve operates as a pressure relief valve. The setting pressure is lowered by the pressure in the inlet line. To ensure safe load holding the setting pressure should be approximately 30% higher than the max. load pressure.

Series RG is a full time regenerative valve assembly that allows a double-acting, single rod cylinder to be extended more rapidly using the same pump flow. To achieve this, oil from the rod end of the cylinder is added to the flow to the cap end, increasing the rate of extension.

Series ZNS

Features:

  • 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

Specifications

Series CB

Features:

  • Controlled movement loads.
  • Load holding via leak-free poppet valve.
  • Secondary relief protection for the actuator.
  • Sizes:
– CB03 – NFPA D03 / NG6 / CETOP 3
– CB05 – NFPA D05 / NG10 / CETOP 5
– CB5H – NFPA D05HE / NG10 / CETOP 5H
– CB07 – NFPA D07 / NG16 / CETOP 7
– CB08 – NFPA D08 / NG25 / CETOP 8

Specifications

Series RG

Features:

  •  High life time.
  • Cracking pressure 2.0 Bar (30 PSI).
  • Sizes:
– RG03 – NFPA D03 / NG6 / CETOP 3
– RG05 – NFPA D05 / NG10 / CETOP 5
– RG07 – NFPA D07 / NG16 / CETOP 7
– RG08 – NFPA D08 / NG25 / CETOP 8

Specifications