... free volume, high capacity, low resistance, high separation efficiency and so on. Metal Pall Ring Packing is widely used in ... Stripping, Heat Recovery, Extraction, Various separation and absorption applications at atmospheric pressure and under vacuum, where a low pressure drop is ... "100×100×1.8740.9655012003704 "100×100×2.0350.955531200371 Metal pall ring (Dia.5/8", 1", 1.5", 2", 3", 4")