PFA Pall Ring

PFA Pall Ring Packing

Product Overview

PFA Pall Rings are high-performance packing materials designed to enhance mass transfer efficiency in gas–liquid and liquid–liquid contact processes. Manufactured from high-purity PFA, these pall rings combine excellent chemical resistance with a unique open-structure design, making them ideal for corrosive, high-purity, and semiconductor-related applications.

Compared with conventional random packings, PFA Pall Rings provide larger surface area, lower pressure drop, and more uniform fluid distribution, ensuring stable and efficient system operation.

Key Features

• High-Purity PFA Material
  Ultra-low extractables and non-contaminating, suitable for trace and ultra-trace chemical processes.

• Excellent Chemical Resistance
  Resistant to strong acids and corrosive media such as HF, HNO₃, HCl, H₂SO₄, and mixed acids.

• Optimized Open Structure
  Large void fraction and internal support ribs promote efficient liquid spreading and gas flow.

• Low Pressure Drop
  Reduces energy consumption and minimizes the risk of flooding or blockage.

• High Thermal Stability
  Continuous operating temperature up to approximately 260 °C.

Applications

• High-purity acid distillation and rectification systems

• Acid vapor absorption and exhaust gas scrubbers

• Semiconductor wet process chemical systems

• Laboratory and pilot-scale distillation or absorption columns

• Custom PTFE / PFA chemical processing equipment

Advantages over Conventional Packings

• Higher mass transfer efficiency than traditional Raschig rings

• Improved resistance to fouling and clogging

• Longer service life in highly corrosive environments

• Suitable for both industrial and laboratory-scale systems

Customization

PFA Pall Rings are available in various sizes and can be customized according to specific system requirements. Custom solutions are supported for integration with PTFE or PFA columns, distillation units, and chemical handling systems.

Typical Material Properties

• Material: PFA (Perfluoroalkoxy)

• Temperature resistance: up to ~260 °C

• Chemical resistance: strong acids, solvents, and corrosive chemicals

• Surface characteristics: non-wetting, non-adsorptive, low background