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Ball Packing

Ball packings (or float balls) are hollow spheres made of plastic (often PP or PVC) used as random packing or as floatation devices within packed columns. In packed towers, float balls sit on the liquid surface to promote laminar flow and prevent splashing when the packing bed level fluctuates. They are also used to occupy empty bed volume during system shutdowns to preserve liquid in the piping.

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Key Features

Hollow Spheres: Designed to float on liquids.
High Voidage: Spheres pack randomly with voids around 85–90%.
Lightweight: Easy to handle; material typically PP or PE.

Benefits

Liquid Management: Used as “liquid redistributors” or to conserve solvent when a column is drained.
Low Cost: Inexpensive means to fill space in the tower.

Applications

Chemical Columns: Placed on liquid layers to improve distribution when packing is partially dry.
Absorbers/Strippers: Float balls can help maintain even liquid levels.
Storage Tanks: Used as anti-foam or mixing aids.

Technical Specifications

Diameter: Common sizes ~20–100 mm.
Material: Polypropylene, PVC.

Unique Selling Points (USPs)

Easy Handling: Quick deployment or removal in process equipment (often sold in nets or bags).