Oleodinamica Marchesini V0505 VAU 3/4 OMT cross-line relief valve

Oleodinamica Marchesini V0505 (VAU 3/4 OMT) is a cross-line relief valve with a factory maximum pressure of 350 bar and listed mass of 1.920 kg. The original sheet identifies this exact article; the manufacturer photograph represents the series.

The factory maximum flow is 100 l/min and V1/V2 supply ports are G 3/4. This is the dual-line OMT execution, distinct from the single-line V0506 version.

Flange M1/M2 directly to the motor and connect V1/V2 to supply. Compare the original 80 mm mounting-centre dimension, 10.5 mm mounting holes and O-ring seats with the actual motor execution. A shared OMT family name alone does not establish compatibility with every motor variant.

The zinc-plated steel body uses hardened and ground internal parts and standard BUNA-N seals. Follow the original circuit and installation drawing in the local PDF. Where pressure/flow curves use oil at 50 °C and 30 cSt, these are curve reference conditions and not an operating-temperature specification. The complete relevant factory spread is retained unchanged.