Orbitrol 80 with the ON (ON NORMAL) system, while the oil-filled steering wheel constantly circulates in the system and passes through the return line to the tank unhindered by the Orbitrol, the pump then works but is relieved. 150-1150 OSPC 80 ON Sauer Danfoss steering unit orbitrol 80 cm3 open center with valves We sell wholesale. High Quality Replacement OSPC 80 ON DANFOSS 150N2150 With Long STEERING CONTROL UNIT ORBITROL OSPC 100 OR Orbital Steering Valve ; Recommended oil flow in the system: from 6 to 10 l / min ; Online Aftermarket Parts Shop for Excavators, Loaders, Aerial Work Platfroms, Tractors and 150N0163 OSPC 80 ON Sauer Danfoss steering unit orbitrol 80 cm3 open center with valves | Shipping Worldwide | Fluid Power Package includes: 1 x Steering Control Unit Pump Orbitrol Valve as pictures show Part Number: 150N2150; OSPC 80 ON; OSPC80ON; OSPC-80-ON