Proportional pneumatic tipping valve suitable for large oil flow applications especially designed for heavy-duty tipper bodies, off-road trucks and semi-trailers. - Close center hydraulic scheme. - Built-in check and adjustable relief valves (direct type) - Nodular cast-iron body for pressure up to 400 bar - Either chassis or tank mounting options - Mechanical direct end-of-stroke with anti-shock spring - Ready for pressure signal switch mounting - Galvanized body and nickel spool - Guaranteed for oil temperature range -25 a 80 °C, viscosity range 12 a 100 cSt and oil filtering 25 µm.