PTFE Pall Ring Product Description

The PTFE Pall Ring is the ultimate corrosion-proof random packing, injection-molded from 100% virgin polytetrafluoroethylene (PTFE). It retains the proven Pall ring geometry—a cylindrical body with two rows of open windows and inwardly bent tongues—which ensures high voidage, uniform gas-liquid contact, and low pressure drop. PTFE is chemically inert to virtually all substances, including aqua regia, hydrofluoric acid, boiling sulfuric acid, and all organic solvents, and it maintains mechanical integrity across an extraordinary temperature range of -100°C to +260°C. Its non-stick, ultra-smooth surface resists fouling, scaling, and product adhesion, while extremely low extractables make it suitable for high-purity pharmaceutical and electronic chemical processing. These properties make the PTFE Pall Ring indispensable in chlor-alkali plants, strong acid scrubbing, and absorption towers where metal, ceramic, or standard plastic packings would be rapidly destroyed.

Product Highlights

• Universal Corrosion Resistance: PTFE is inert to virtually all chemicals—including aqua regia, HF, boiling sulfuric acid, and all organic solvents—ensuring indefinite service life in the most aggressive environments.
• Extraordinary Temperature Range: Performs continuously from -100°C to +260°C, covering cryogenic and high-temperature services that exceed the limits of PP, PVC, PVDF, and even some metals.
• Ultra-High Purity & Low Extractables: 100% virgin PTFE contains no plasticizers, stabilizers, or additives, meeting FDA requirements on request and ensuring no contamination in pharmaceutical or electronic chemical processes.
• Proven Pall Ring Geometry: Open windows and internal tongues deliver high mass transfer efficiency, large voidage (up to 94.9%), and low pressure drop—comparable to metal packings but at a fraction of the weight.
• Non-Stick & Anti-Fouling Surface: The smooth, low-friction PTFE surface resists scale adhesion, fouling, and product build-up, minimizing maintenance and extending operational life.
• Strengthened Grade Available: A reinforced PTFE Pall Ring can withstand continuous temperatures up to 250°C without deformation, ensuring stable performance in high-temperature packed beds.