Direct-acting pressure reducing valve with check valve

Oleodinamica Marchesini V0707/180 VRPRL 1/2 direct-acting pressure reducing valve with check valve

Model: V0707/180 · Oleodinamica Marchesini
Maximum operating pressure (bar)350
Maximum flow (l/min)30
Leakage test portP
MountingIn-line
Internal parts materialHardened and ground steel

Description

Oleodinamica Marchesini V0707/180 (VRPRL 1/2) is a direct-acting pressure reducing valve with check valve. The factory pressure rating is 350 bar. Maximum flow is 30 l/min, with a 35–180 bar pressure-adjustment range. This exact /180 screw-adjusted execution is listed as a complete article by a supplier; the factory sheet defines the base body, spring range and adjustment options.

Connect P to the main pressure line, Reg. to the circuit requiring lower pressure and T to tank. The reducing element controls downstream pressure. The 350 bar inlet/body limit is distinct from the 35–180 bar regulated-pressure range. The factory lists internal leakage of 70 cm³/min with 350 bar applied at P; this is a test-specific value, not a zero-leakage or pressure-holding claim.

An integrated check valve permits free reverse flow. This reverse-flow path is the defining difference from the corresponding VRP version.

The manufacturer specifies a zinc-plated steel body, hardened and ground steel internal parts and BUNA N seals. The local technical reference preserves the complete relevant factory spread with the model table, circuit, dimensions and performance curves. Representative manufacturer product image for the VRPRL series. Use the exact article table and original drawing in the local PDF for port layout, dimensions and adjustment execution.

Full specifications

Technical specifications
Product type Direct-acting pressure reducing valve with check valve
Maximum operating pressure (bar) 350
Maximum flow (l/min) 30
Reverse-flow check valve Yes
Leakage test port P
Port thread standard BSP
Mounting In-line
Internal parts material Hardened and ground steel
Adjustment Screw
Adjustment range maximum (bar) 180
Adjustment range minimum (bar) 35
Curve reference conditions Oil temperature 50 °C; oil viscosity 30 cSt
Factory type designation VRPRL 1/2
Internal leakage (cm³/min) 70
Leakage test pressure (bar) 350
Manufacturer Oleodinamica Marchesini
Manufacturer part number V0707/180
Product family VRPRL
Mass (kg) 1.468
Technical specifications
Port connection 1/2" BSP
Body material Zinc-plated steel
Technical specifications
Seal material BUNA N