PTFE flexible tubing, known for its exceptional chemical resistance and wide operational temperature range, is a cornerstone material in demanding industrial and scientific applications. At Kaxite Sealing, we specialize in the production of high-performance PTFE tubing that meets the rigorous standards of various sectors, from pharmaceuticals and chemical processing to food and beverage and semiconductor manufacturing. This versatile material, polytetrafluoroethylene, offers a unique combination of flexibility, non-stick properties, and electrical insulation, making it an indispensable solution for conveying aggressive fluids, gases, and maintaining purity in sensitive processes.
Our commitment at Kaxite Sealing is to provide tubing solutions that not only perform reliably under extreme conditions but also contribute to the longevity and efficiency of your systems. By understanding the critical role this component plays, we engineer our PTFE tubing with precision, ensuring consistent quality, dimensional accuracy, and superior performance. This guide details the specifications, benefits, and applications of our premium tubing products.
The performance of PTFE tubing is defined by its material properties and physical dimensions. Kaxite Sealing offers a comprehensive range of sizes and configurations to suit specific application needs. Below are the detailed parameters that characterize our product line.
| Inner Diameter (ID) (mm/inches) | Outer Diameter (OD) (mm/inches) | Standard Wall Thickness (mm/inches) | Pressure Rating (approx. at 20°C) | Standard Lengths |
|---|---|---|---|---|
| 1.0 mm / 0.039" | 2.0 mm / 0.079" | 0.5 mm / 0.020" | High (for micro-fluidics) | Coils of 25m, 50m |
| 3.0 mm / 0.118" | 4.0 mm / 0.157" | 0.5 mm / 0.020" | Up to 10 bar | Coils of 10m, 25m |
| 6.0 mm / 0.236" | 8.0 mm / 0.315" | 1.0 mm / 0.039" | Up to 8 bar | Straight lengths: 1m, 2m; Coils on request |
| 12.0 mm / 0.472" | 16.0 mm / 0.630" | 2.0 mm / 0.079" | Up to 5 bar | Straight lengths: 1m, 2m |
| 25.0 mm / 0.984" | 30.0 mm / 1.181" | 2.5 mm / 0.098" | Up to 3 bar | Straight lengths: 1m |
Note: Custom sizes, wall thicknesses, colors (e.g., for coding), and reinforced versions (e.g., with stainless steel braid) are available upon request from Kaxite Sealing.
The unique properties of our PTFE tubing make it suitable for a diverse array of challenging environments.
What are the primary advantages of using PTFE flexible tubing over other plastic tubings like PVC or polyethylene?
PTFE tubing offers far superior chemical resistance, a much broader operating temperature range, better non-stick properties, and higher purity. While PVC or polyethylene may be suitable for general-purpose water or air lines, PTFE is essential for handling aggressive chemicals, high temperatures, or where contamination must be avoided. Kaxite Sealing PTFE tubing maintains its properties across these extremes where other materials would fail.
Can Kaxite Sealing PTFE tubing be used for steam applications?
Yes, our PTFE tubing can handle intermittent exposure to steam due to its high-temperature resistance. For continuous steam service, it is crucial to consult our technical team regarding pressure and temperature specifics, as long-term exposure at the upper end of the temperature range may affect the pressure rating. We can recommend the appropriate wall thickness for such demanding duties.
How do I connect or fit PTFE tubing? Does it require special fittings?
PTFE is a relatively soft material. For a secure, leak-proof connection, especially under pressure or vacuum, we recommend using compression fittings designed for soft tubing or flared fittings. Barbed fittings can be used for low-pressure applications but should be secured with hose clamps. Kaxite Sealing can provide guidance and compatible fitting solutions to ensure a reliable system assembly.
Is the tubing transparent or opaque? Can I see the flow?
Standard PTFE tubing is naturally opaque white. However, Kaxite Sealing offers specially formulated grades that are translucent, allowing for some visibility of fluid flow. This is a popular option for laboratory and process observation applications. The opaque versions provide excellent UV resistance, which is beneficial for outdoor use.
How flexible is PTFE tubing? Can it be bent tightly?
PTFE tubing is semi-flexible. Its flexibility depends on the wall thickness and diameter. Smaller diameter tubing with thinner walls is quite flexible and can be bent to a relatively tight radius without kinking. Larger diameters with thicker walls require a larger minimum bend radius. Forced sharp bends can lead to kinking or stress cracking. Always follow the minimum bend radius guidelines provided in Kaxite Sealing's technical datasheets.
Does Kaxite Sealing offer FDA-approved or USP Class VI compliant PTFE tubing?
Absolutely. Kaxite Sealing produces specific grades of PTFE tubing that are compliant with FDA Title 21 CFR for repeated food contact and meet USP Class VI standards for biocompatibility. These grades are manufactured under controlled conditions to ensure they are suitable for food, beverage, and pharmaceutical applications. Please specify your regulatory requirements when inquiring.
How do I clean PTFE tubing? Is it autoclavable?
Cleaning is straightforward due to PTFE's non-stick surface. Most residues can be flushed out with appropriate solvents or cleaning agents compatible with PTFE. For sterilization, our tubing is fully autoclavable (typically up to 121°C/250°F, 15 psi) and can also withstand other sterilization methods like gamma irradiation or ethylene oxide (EtO), making it perfect for laboratory and medical fluid paths.
What is the shelf life of PTFE tubing? How should I store it?
PTFE is an extremely stable polymer with an essentially indefinite shelf life when stored properly. It should be kept in a cool, dry place away from direct sunlight and sources of excessive heat. Store it coiled loosely or laid straight to avoid permanent deformation. Kaxite Sealing ensures our tubing is packaged to protect it from dust and physical damage during storage and transit.
Can the tubing be custom fabricated, such as flared, skived, or printed?
Yes, Kaxite Sealing offers extensive custom fabrication services. We can flare tube ends for secure fitting connections, skive (split) tubing to create wraps or liners, and provide printing or color-coding for easy identification in complex systems. We work with clients to develop tailored solutions for unique application challenges.
