A bed delimiter is an essential component of any packed tower.
Its position inside the tower, directly above a randomly packed bed, confines any upward movement of packing.
Maintaining a level top surface on the bed is important, especially if the vapour load is sufficient to fluidise the top of the bed under certain conditions. Packing lifted up towards the distributor affects both liquid and vapour distribution and increases entrainment.
Bed limiters can be fabricated and supplied in a range of thermoplastics, stainless steel and alloys.