... corrosion.5. High mass transfer efficiency.6. Resist nesting and wall-flow effect.7. Gas-liquid with uniform distribution ... Plastic Pall ring is widely used in Absorption, scrubbing, and stripping services, Versatile alternative to metal Pall rings, ... , decarbonization plant, separation of ethylbenzene, seperation of isooctane/ methylbenzene.Material: PE, PP, RPP, PVC, CPVC, PVDF. Size: 5/8" (16mm); ...