PRIORITY VALVES TYPE PR...
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The Priority Valves distribute and trace the hydraulic flow from the
supply pump of the hydraulic system to the hydraulic components ehich
control and run the vehicle.
The Priority Valves are used only with the HKUS.../5(E)(T)(TE) steering units. When connected, the steering unit anf the priority valve represent sophisticated hydraulic tracing sytsem that control the flow in both main pipelines of the hydraulic system (the working and control one) at any time of its operation. As a static signal, the "LS" signal must be used in systems with circuit stability. The connection between the PRT, PRTA priority valves and the HKUS.../5T(TE) steering units has to be as short as possible, but should not exceed 1,5m (for iron pipe with ø 4 internal diameter). When a rubber hose is used the lenght have to be even shorter. The Priority Valves PRT.../160 have built-on a pilot pressure relief valve, who protects the steering unit against exceed pressure. The pilot pressure relief valve operates with the Shuttle of the Priority valve to limit the maximum steering ressure P-T measured across the steering units port. |
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