Oleodinamica Marchesini VC0350/V300 cartridge pressure relief valve

Oleodinamica Marchesini VC0350/V300 is the VMPC 35 cartridge pressure relief valve. Its original size row gives maximum flow 35 l/min. The exact supplier type explicitly specifies a 50-300 bar adjustment range, matching the applicable original spring or pressure-range row. The adjustment is by handknob.

Fit the screw-in cartridge into the matching M20 x 1.5 cavity, respecting the original bore, shoulder, port and sealing dimensions. The pressure passage P relieves to T at the adjusted threshold. A threaded cavity is not an external hydraulic pipe connection, and the cavity thread is recorded separately from BSP line ports.

The original VMPC 35 table lists 10-120 and 50-300 bar pressure ranges. It does not state a separate maximum body working-pressure rating; the selected range is therefore not duplicated as an assumed maximum operating-pressure filter.

The zinc-plated steel body, hardened and ground steel internals and standard BUNA-N seals follow the original family specification. Mass is a labelled reference for the base execution, not an independently weighed handknob or sealing-cap option. No delivered preset is inferred from a catalogue standard setting. The representative manufacturer family photograph may show a screw instead of the selected adjustment; the exact article and printed adjustment legend govern the execution.

The local PDF retains the complete relevant original spread, including the size row, option legend, circuit, curves and installation drawing. Adjacent rows apply only to their identified executions. Oil temperature 50 C and viscosity 30 cSt beside the curves are reference conditions, not operating limits.