Oleodinamica Marchesini V0369 VRAP 80/100 DE SV M plough overturning valve

Oleodinamica Marchesini V0369 (VRAP 80/100 DE SV M) is a plough overturning valve with a factory maximum pressure of 400 bar and listed mass of 4.95 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 DE SV M sheet describes stopping the plough at the 90-degree dead point. Italian supplied-setting wording is 150/160 bar while English is 150 bar, so the actual delivered setting must be checked separately.

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.