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HC-NVD2

HC-NVD2
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Proportional valve Technical specifications Working section number Rated flow Rated pressure Spool stroke Spool pitch Applications Cranes and Aerial platforms, Aerial platforms Concrete pumps, Compactor, Hook and Skip loaders The patented Flow Sensing technology of HC-NVD2 allows a perfect integration between design simplicity and high functional performances: the design is lean and reliable like an open center valve, but the control characteristics are typical of a load sensing valve: fine control is not affected by the load changing and the simultaneous movements. Overall dimensions are reduced thanks to the lack of sectional compensators and to integrated proportional valves for electrohydraulic actuation. Pressure drop in the stand-by condition are typical of an open center valve, particularly low compared to load sensing systems. Weights (kg) PORTS BSP Thread (ISO - 228) UN-UNF Thread (ISO - 725) Outlets (T-HPCO)

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Proportional valve Typical curves Pressure drop (P - T) Regulated flow on port A and B Qp Indicated values have been tested with standard sectional valve and W001A spools. Spool type W001 3 positions double-acting W003 3 positions double-acting A to tank B blocked 3 positions double-acting A and B to tank 3 positions double-acting A blocked B to tank The control characteristic depends on the spool and on the section type (see product catalogue for more information). Depending on the pump flow, there are following available spools: A : flow Q = above 30 l/min B : flow Q = from 15 to 30 l/min...

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