Double motor counterbalance valve

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

Model: V0426 · Oleodinamica Marchesini
Maximum operating pressure (bar)350
Maximum flow (l/min)50
Brake-release functionNo
ActuationHydraulic pilot
Port connection1/2" BSP
Body materialZinc-plated steel

Description

Oleodinamica Marchesini V0426 (VBCDF 1/2 DE OMS) 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.

This unsuffixed article is the version without the /SF brake-release function. The shared factory sheet also illustrates the separately ordered /SF version; its brake connection must not be assigned to this article.

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.

Full specifications

Technical specifications
Product type Double motor counterbalance valve
Maximum operating pressure (bar) 350
Maximum flow (l/min) 50
Motor port interface Flange with O-ring seal
Port thread standard BSP
Supply port connection 1/2" BSP
Mounting Motor flange mounting
Internal parts material Hardened and ground steel
Brake-release function No
Catalogue standard setting (bar) 320
Compatible motor series Danfoss OMS
Controlled directions Double
Curve reference conditions Oil temperature 50 °C; oil viscosity 30 cSt
Factory type designation VBCDF 1/2 DE OMS
Manufacturer Oleodinamica Marchesini
Manufacturer part number V0426
Pilot ratio 1:4.5
Product family VBCDF DE OMS
Mass (kg) 2.15
Motor port bore diameter (mm) 9
Technical specifications
Actuation Hydraulic pilot
Port connection 1/2" BSP
Body material Zinc-plated steel
Valve function Control and retain motor motion in both directions
Technical specifications
Seal material BUNA N