... PVDF pall ring, PTFE pall ring, HDPE pall ring.Plastic Pall ring most suited in media ranges from 60°C ... mass transfer efficiency and so on.Application of Plastic pall ring:Plastic Pall ring can be applied to various of device ... " (25mm); 1.1/2" (38mm); 2" (50mm); 3" (76mm).Technical data of Plastic pall ring: Diameter (mm)Dimension d×h×δ (mm ... 6730.9294193060 Dia.5/8", 1", 1.5", 2", 3" Plastic pall ring