Oleodinamica Marchesini V0074/SX VBPDE 3/8 L C/RUB. double pilot-operated check valve with manual shut-off

Oleodinamica Marchesini V0074/SX is the VBPDE 3/8 L C/RUB. double pilot-operated check valve with integrated left-side manual shut-off. The full /SX code is printed in the current manufacturer table and is explicitly selected on the supplier offer. Its exact row specifies 3/8" BSP supply and actuator connections, 30 l/min maximum flow, 350 bar maximum operating pressure, pilot ratio 1:5.5 and cracking pressure 3 bar.

The valve holds the actuator in both directions. Connect V1 and V2 to supply and C1 and C2 to the actuator. The pilot-operated poppets allow free supply flow and block return flow until pilot pressure opens the corresponding check.

The manual shut-off is intended for applications such as stabiliser cylinders, where closing the valve after lowering the legs helps prevent unintended movement. Follow the manufacturer installation drawing and system safety requirements; this description is not a claim of an independent safety certification. The factory identifies the drawing as the left version and describes a reversible lever. No right-side /DX execution is inferred.

The zinc-plated steel body contains hardened and ground internals with standard BUNA-N seals. The manufacturer describes guided-poppet sealing with negligible leakage. Exact catalogue dimensions are L 65 mm, L1 118.5 mm, L2 34 mm, H 60 mm and S 30 mm; listed mass is 0.964 kg. These dimensions are taken from this exact row, independently for the single and double versions.

The local technical PDF includes the complete relevant original manufacturer spread with the applicable article row, spring matrix or stainless example, hydraulic diagram and installation drawing. Neighbouring rows apply only to their stated executions. Oil temperature 50 °C and viscosity 30 cSt beside the curves are test conditions, not operating temperature limits.