Plastic Q-Pack is a large open-grid random packing with a catalog-confirmed 82.5 × 95 mm geometry, 96.3% free volume, 33.7 kg/m³ bulk density, 1,165 pieces/m³ and a low 23 m⁻¹ dry packing factor. Its strongest engineering position is in towers where hydraulic openness, low bed weight and liquid redistribution are important, while tower diameter, mass-transfer demand, fouling and polymer compatibility still define the final application boundary.

CPVC Pall Ring is a chlorinated-polyvinyl-chloride random packing that combines open Pall Ring geometry with a material position distinct from PVC, PVDF and PTFE. DAIER’s engineering database contains 25, 38 and 50 mm CPVC Pall Ring nodes; final selection should verify actual chemistry, temperature, fouling, hydraulics and manufacturer-specific physical data.

Plastic Raschig Ring is a simple cylindrical plastic random packing available in DAIER’s verified 16–80 mm series. Smaller models provide much greater specific surface area and element count, while the 80 mm model provides a substantially more open bed; final selection should balance polymer compatibility, mass-transfer requirements, hydraulics, fouling, tower diameter and support-grid compatibility.

PVDF Intalox Saddle is a fluoropolymer random packing that combines chemically resistant PVDF construction with open saddle-type geometry. DAIER’s engineering database currently contains 25, 38 and 50 mm PVDF Intalox Saddle nodes; final selection should confirm chemistry, temperature, fouling, hydraulics, tower diameter and manufacturer-specific product data rather than treating PVDF as an automatic performance upgrade.

PTFE Intalox Saddle is a fluoropolymer random packing that combines chemically demanding PTFE construction with open saddle-type gas-liquid contacting geometry. DAIER’s engineering database currently contains 25, 38 and 50 mm nodes; final selection should confirm chemistry, temperature, fouling, hydraulics, tower diameter and manufacturer-specific product data rather than assuming PTFE itself guarantees better tower performance.