... :2008 4) PE,PP,RPP,PVC,CPVC,PVDF Plastic Pall ring most suited in low pressure drop, high capacity applications, ... allows use with conventional liquid distributors.High Mechanical Strength Ring and spoke construction provides high mechanical strength, which allows ... Packing factorPall ring2525x25x1.22139185483002853838x38x1.41519182158002005050x50x1.5100926063001307676x76x2.6729262193092 PVDF pall ring