Oleodinamica Marchesini V0604/6 VU MM 3/8 male/male check valve - 6 bar cracking pressure

Oleodinamica Marchesini V0604/6 is the supplier-listed VU MM 3/8 male/male in-line check valve with 3/8" BSP connections and a selected 6 bar cracking-pressure spring. The full order designation V0604/6 is observed directly on the named-brand supplier product card; it is not created by combining a base code with an option.

The current manufacturer lists base V0604 in the VU MM range and explicitly offers 1, 3, 6 and 9 bar cracking-pressure options. Its 3/8-inch size row and the exact supplier article specify maximum flow 20 l/min and maximum operating pressure 350 bar. The selected 6 bar cracking pressure is an opening differential and is separate from the 350 bar component pressure limit.

Connect V to the pressure supply and C to the downstream circuit. The guided poppet permits flow from V to C and blocks reverse flow from C to V. The body is zinc-plated steel with hardened and ground internal parts.

The original manufacturer spring matrix contains an order-code discrepancy: the 6 bar cell in the VU MM 3/8 row repeats V0594/6, while the actual supplier card selects V0604/6 for the 3/8-inch valve. This page preserves the observed supplier designation and the manufacturer base-size and 6 bar option evidence; it does not claim that the complete code V0604/6 is printed in the original manufacturer table. The printed original is retained without correction.

The manufacturer wildcard body row V0604/* lists L 34 mm, hexagon size 22 mm and a common body mass reference of 0.053 kg. The mass is not an independently weighed 6 bar execution. No seal compound, operating-temperature range or spring-specific pressure-drop curve is inferred.

The local PDF retains the complete relevant original manufacturer spread as a family and option reference, including the base-size row, spring matrix, hydraulic circuit and body drawing. Representative manufacturer VU MM series image; it does not identify the internal spring.