CPVC (Chlorinated Polyvinyl Chloride) Pall Rings are a specialized type of random tower packing designed for high-temperature and highly corrosive chemical processes. They combine the mechanical strength of PVC with enhanced thermal and chemical resistance, making them suitable for acid and alkali scrubbing, distillation, and gas absorption applications.
It was invented by German BASF, the first generation Random packing. To compared with Raschig ring, the most important improvement is increase two row of inward ligule. It promotes liquid-gas liquidity and improve tower’ s packing’ s mass transfer performance.