... Pall ring:PE pall ring, PP pall ring, RPP pall ring, PVC pall ring, CPVC pall ring, PVDF pall ring, PTFE pall ring, HDPE pall ring.Plastic Pall ring most ... it has features such as high void ratio, low pressure drop, low mass-transfer unit height, high flooding point, uniform gas ... (25mm); 1.1/2" (38mm); 2" (50mm); 3" (76mm).Technical data of Plastic pall ring: Diameter (mm)Dimension d×h×δ (mm)Specific ...