We have obtained a fourth generation random packing from Sulzer called NexRing, delivered in two sizes – 0.7 and 1.2.  Putting it into the three meters column can not be just pouring it down from the top as a specified number of the elements in the cubic meter of the packed bed needs to be achieved and the elements tend to accumulate in the center of the column leaving the circumference less densly filled.  Using the sanitary tubes we have achieved the goal….