Oleodinamica Marchesini V0426/SF VBCDF 1/2 DE OMS SF double motor counterbalance valve

Oleodinamica Marchesini V0426/SF (VBCDF 1/2 DE OMS SF) is a double motor counterbalance valve rated for 50 l/min maximum flow and 350 bar maximum operating pressure. Its factory pilot ratio is 1:4.5. The manufacturer lists a standard setting of 320 bar; this catalogue setting is separate from the maximum pressure rating.

The two counterbalance sections control load-driven motor rotation and retain the load in both directions. Connect V1/V2 to the supply and C1/C2 to the motor flange. Pilot pressure opens the corresponding controlled return path; the integrated check paths admit supply flow. Follow the original hydraulic schematic for both motor directions.

The direct flange interface is for Danfoss OMS motors. V1/V2 supply connections are 1/2" BSP; the C1/C2 motor-interface passages have a listed 9 mm bore and O-ring sealing. Check the original drawing for the exact mounting pattern.

The /SF article includes the brake-release function and a dedicated SF connection of 1/8 inch BSP. This is a separately listed complete code. The source schematic labelled with brake release applies to this /SF execution.

The manufacturer specifies a valve setting at least 1.3 times the load-induced pressure. Check the circuit setting against the actual load; no customer-specific adjustment or /P or /PP option is inferred from this standard article code. The body is zinc-plated steel with hardened and ground steel internals and standard BUNA N seals.

The local PDF preserves the complete relevant manufacturer code table, hydraulic schematic, original drawings, curves and conditions. Representative manufacturer product image for the VBCDF DE OMS series. Check the exact article drawing and hydraulic schematic in the local PDF for its port arrangement and execution.