... , PP, RPP, PVC, CPVC, PVDF, PTFE, HDPE Size: 5/8", 1", 1.5", 2", 3" Use as tower packing Plastic pall ring:PE pall ring ... mass transfer efficiency and so on, and the application temperature in media ranges from 60°C to 150°C. For these ... reasons plastic pall ring is widely used in the packing towers in petroleum industry, chemical industry, alkali-Chloride industry, coal ...