Used 50HP IKA Works Inline Colloid Mill, Model MK 2000/20. Nominal flow rate 90 gallons per minute, nominal tip speed 23 meters per second. Driven by a 50hp, 3/60/230/460 volt, 3535 rpm motor. 3" Inlet & outlet. Unit mounted on a base Part# P016324, serial# 2666-12.