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Description
Description
PFA (Perfluoralkoxy) is a high-performance tubing material developed for applications requiring high temperature resistance, capable of withstanding working temperatures up to +260°C while remaining melt-processable. This material exhibits outstanding crack and stress resistance, along with a low coefficient of friction, making it an ideal choice for various industrial applications.
PFA shares similar physical and chemical properties with PTFE (Polytetrafluoroethylene), boasting a flex life that is ten times greater and lower permeation rates. With a lower melt viscosity than PTFE, PFA can be effectively injected, compressed, and transfer molded. It holds the distinction of having one of the highest working temperatures among fluoropolymers, providing excellent resistance to harsh environmental conditions, electrical insulation, and protection against heat, chemicals, and solvents.
This tubing is extensively used in high purity applications, including medical tubing, heat exchangers, semiconductor baskets, pumps and fittings, and as valve liners.
Technical Specifications
| Specification | Measurement |
|---|---|
| Material | PFA |
| Shape | Metric Tubing |
| Colour | Clear |
| Density (g/cm³) | 2.12-2.17 |
| Water absorption (%) | 0.03 |
| Yield stress (MPa) | 14 |
| Elongation at break (%) | 300 |
| Shore hardness (scale D) | 60-65 |
| Tensile modulus of elasticity (MPa) | 600-800 |
| Melting temperature (°C) | 300-310 |
| Thermal conductivity (W/(m*K)) | 0.22 |
Applications
- Medical tubing
- Heat exchangers
- Semiconductor baskets
- Pumps and fittings
- Valve liners
Frequently Asked Questions
What is PFA tubing used for?
PFA tubing is primarily used in applications that require high purity, excellent chemical resistance, and the ability to withstand high temperatures.
What are the advantages of using PFA over PTFE?
PFA offers a longer flex life, lower permeation, and is easier to process compared to PTFE, making it suitable for more demanding applications.
Can PFA tubing be molded?
Yes, PFA can be injected, compressed, and transfer molded due to its lower melt viscosity compared to PTFE.