Oleodinamica Marchesini V1090 VPR3 1 three-way priority flow control valve

Oleodinamica Marchesini V1090 (VPR3 1) is a three-way priority flow control valve. The factory pressure rating is 350 bar. Maximum inlet flow is 200 l/min and maximum regulated flow is 170 l/min. These are different limits; the pressure rating does not specify the outlet setting.

Connect E to the supply and P to the priority circuit. Outlet B carries excess flow and may supply a second function or return to tank. The priority-flow regulator compensates for changes in pressure and inlet flow; the B branch is not a constant-flow outlet. Set the hand knob and secure its locking nut, then check the original compensation curves at the intended operating point.

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 VPR3 series. Use the exact article table and original drawing in the local PDF for port layout, dimensions and adjustment execution.