... , PP, RPP, PVC, CPVC, PVDF, PTFE, HDPE Size: 5/8", 1", 1.5", 2", 3" Use as tower packing Plastic pall ring:PE ... polypropylene (RPP), polyvinyl chloride (PVC), chloridized polyvinyl chloride (CPVC) and polyvinylidene fluoride (PVDF). Plastic Pall Ring has features such as ... contact, small specific gravity, high mass transfer efficiency and so on, and the application temperature in media ranges from 60°C ...