Oleodinamica Marchesini V0364 VRAP 70/80 SE SV M plough overturning valve

Oleodinamica Marchesini V0364 (VRAP 70/80 SE SV M) is a plough overturning valve with a factory maximum pressure of 400 bar and listed mass of 4.76 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.

This is the single-acting SE SV M circuit. C1, C2, U1 and U2 are G 3/8 connections. The Italian and English paragraphs disagree on frame rotation direction; confirm the permitted plough geometry before selection. The same document gives 150/160 bar in Italian and 150 bar in English for supplied exchange settings; no single exact preset is assigned here.

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.