Nylon Tubing
What Is Nylon Tubing (Polyamide / PA Tubing)?
Nylon tubing, also referred to as polyamide (PA) tubing, is a commonly used engineering plastic tubing material for pneumatic and fluid systems. It is widely applied in automation equipment and industrial piping systems.
Based on differences in polyamide molecular structure, nylon materials are available in several types. Among them, Nylon 6 (PA6) and Nylon 12 (PA12) are the two most commonly used materials in industrial pneumatic systems. The differences between them are mainly reflected in material behavior under different application conditions.
Material Behavior Differences Between Nylon 6 (PA6) and Nylon 12 (PA12)
In pneumatic piping applications, Nylon 6 and Nylon 12 exhibit different material behaviors when subjected to variations in humidity, temperature, and long-term operating conditions.
- Nylon 6: Higher moisture absorption. Material behavior may vary when exposed to humidity fluctuations.
- Nylon 12: Low moisture absorption. Suitable for environments with humidity variation or long-term continuous operation.
Nylon 6 and Nylon 12 Material Behavior Comparison
The table below compares Nylon 6 and Nylon 12 based on material behavior under different operating conditions. This comparison is intended for application reference only.
| Material Behavior | Nylon 6 | Nylon 12 |
|---|---|---|
| Moisture absorption behavior | Higher moisture absorption | Low moisture absorption |
| Performance under environmental changes | Suitable for industrial environments with relatively stable conditions | Suitable for applications with noticeable temperature or environmental variation |
| Chemical compatibility | Compatible with commonly used industrial oils and media | Compatible with commonly used industrial oils and media |
| Typical application environment | Industrial piping systems with relatively simple environmental conditions | Industrial piping systems with more significant temperature and humidity variation |
Nylon Tubing Material Selection Guidelines
- Presence of humidity variation
- Long-term continuous operation
- Consistent material behavior over service life
- Installation location and routing conditions
Further Reading
→ Nylon Tubing FAQ | 15 Most Frequently Asked Technical Questions from Automation Engineers
→ Pneumatic Tubing Selection for Production Stability | An Engineering Guide
Nylon 12 Tubing (PA12)
ㆍLow moisture absorption material structure
ㆍGood dimensional stability
ㆍStable chemical compatibility with commonly used industrial oils and media
ㆍConsistent mechanical performance
ㆍGood abrasion resistance
Nylon 6 Tubing (PA6)
ㆍGood mechanical strength and rigidity
ㆍStable chemical compatibility with commonly used industrial oils and media
ㆍConsistent mechanical performance
ㆍGood abrasion resistance