Oleodinamica Marchesini V0640/V180 VS2C 3/8 sequence valve with check valve - handknob

Oleodinamica Marchesini V0640/V180 is a VS2C 3/8 sequence valve with check valve with 3/8" BSP connections, a 10–180 bar spring setting range, maximum flow of 35 l/min and handknob adjustment. The factory base designation is V0640. The supplier lists this complete order code; the manufacturer sheet confirms the base valve, spring range and control option.

The valve feeds a second actuator after the primary circuit reaches the selected sequence pressure. Connect V to supply and C to the cylinder, following the original two-cylinder application circuit. An integral check valve permits free reverse flow.

VS2C is intended for a secondary circuit with limited back pressure because the circuit pressures add. The original pressure-table column is labelled Pressure range and gives 350 bar as a single reference value, separately from the 10–180 bar spring range. A lower bound for that table entry and a separately labelled maximum component-pressure rating are not supplied.

The original spring table gives a standard setting reference of 90 bar for 10–180 bar springs. The delivered setting is not independently established. Use the original pressure/flow curves at 50 °C and 30 cSt as reference conditions, not as an operating-temperature specification.

The /V option is handknob adjustment. The series image and base drawing may show a standard control. Base-table mass is a reference only; the configured handknob mass and its external envelope are not independently established.

The body is zinc-plated steel with standard BUNA-N seals and hardened, ground internal parts. The local PDF retains the complete relevant manufacturer article table, circuit, drawings and ordering notes unchanged.