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