Oleodinamica Marchesini V0891/APCC closed-centre high-pressure three-way diverter valve

Oleodinamica Marchesini V0891/APCC is a closed-centre high-pressure three-way diverter valve with 1/2" BSP connections, 90 l/min maximum flow and a 500 bar component limit. The full offered code is explicitly listed by the factory and supplier. The original V0891/AP size row supplies the body rating; the printed CODE/CC closed-centre legend defines the selected centre execution.

Connect P to supply and A/B to the alternative branches. One lever position connects P to A, the other P to B. The selected closed-centre execution blocks P, A and B at the central position. The standard open-centre circuit shown elsewhere on the same sheet does not define this exact /CC or /APCC item.

The body is steel, with hardened and ground steel internal parts and standard BUNA-N seals with anti-extrusion rings for the AP series. The factory describes minor internal leakage; the diverter is not represented as a certified zero-leak load-holding valve. Unqualified envelope dimensions are omitted where legacy text layers and the visible drawing differ. Any base-row mass shown is labelled as a base-execution reference.

The local technical PDF retains the complete relevant original manufacturer spread, including the size table, option legend, hydraulic circuit and drawing. Neighbouring executions apply only to their identified rows. Oil temperature 50 °C and viscosity 30 cSt shown beside curves are reference conditions.