Oleodinamica Marchesini V0358 VRAP 80/90 SV XL FS plough overturning valve

Oleodinamica Marchesini V0358 (VRAP 80/90 SV XL FS) is a plough overturning valve with a factory maximum pressure of 400 bar and listed mass of 6.28 kg. The original sheet identifies this exact article; the manufacturer photograph represents the series.

The circuit operates two cylinders in sequence: alignment cylinder B first reaches its end of stroke, overturning cylinder A then rotates the plough, and the alignment cylinder returns it to the working position. The manufacturer describes interruption of the cycle and return to the working position. The factory table gives a 230 bar maximum exchange pressure, distinct from the 400 bar maximum pressure.

Use the double-acting circuit: C1 connects through a 12L tube interface, distinct from the G 3/8 C2/U1/U2 ports. C1 goes to the rod side and C2 to the head side of the rotation cylinder; U1/U2 serve the alignment cylinder. Check the original hydraulic and mounting diagrams rather than treating this as an interchangeable SE valve.

The XL FS execution is intended for on-land ploughs with reverse. Its original sheet states a 150 bar supplied exchange setting. The original 241 mm L1 dimension includes its extended connection arrangement.

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.