Kaxite Sealing manufactures PTFE tube from 100% virgin PTFE resin by paste extrusion, producing smooth-bore semi-rigid tubing in ID 1 – 50 mm and wall 0.5 – 5 mm. Chemically inert across pH 0–14, service range -200 to +260 °C, dielectric strength above 45 kV/mm and self-lubricating with the lowest coefficient of friction of any solid material. Supplied in straight lengths, coils or cut pieces, with five standard grades covering general transfer, high-purity, anti-static, high-pressure and braided-reinforced service. Procurement teams choose us for factory-direct bulk pricing, documented traceability and 7–15 day lead times.
Smooth-bore PTFE tube extruded from 100% virgin PTFE resin. Available in five engineered grades — standard transfer (STD), high-purity smooth bore (SM), conductive anti-static (CON), high-pressure wall (HP) and stainless-steel overbraided (BRAID) — to cover general chemical transfer, pharmaceutical, semiconductor, and high-vibration or high-pressure service. Supplied in straight lengths, coils or cut-to-length pieces.
| Nominal Size | Inner Diameter (mm) | Outer Diameter (mm) | Wall Thickness (mm) | Max Working Pressure @ 20 °C | Service Range |
|---|---|---|---|---|---|
| 1/8" | 3.0 ±0.1 | 4.0 ±0.1 | 0.5 ±0.05 | 25 bar | -200 to +260 °C |
| 1/4" | 6.0 ±0.1 | 8.0 ±0.1 | 1.0 ±0.1 | 15 bar | -200 to +260 °C |
| 3/8" | 9.5 ±0.15 | 12.5 ±0.15 | 1.5 ±0.1 | 10 bar | -200 to +260 °C |
| 1/2" | 12.5 ±0.15 | 16.0 ±0.15 | 1.75 ±0.1 | 8 bar | -200 to +260 °C |
| 3/4" | 19.0 ±0.2 | 23.0 ±0.2 | 2.0 ±0.15 | 6 bar | -200 to +260 °C |
| 1" | 25.0 ±0.25 | 30.0 ±0.25 | 2.5 ±0.15 | 4 bar | -200 to +260 °C |
General chemical transfer, electrical insulation and laboratory equipment. Balanced properties at the best price point.
Optimised for high-purity flow — pharmaceutical, bioprocessing, food & beverage and analytical instrumentation. FDA / USP Class VI compliant.
Dissipates static electricity for flammable solvent handling, petrochemical transfer and powder transport.
Thicker wall or specialised construction for hydraulic lines, instrumentation and sampling systems.
PTFE core with stainless steel overbraid for enhanced pressure capability, kink resistance and steam service.
Acid, alkali, solvent and reagent lines where full pH 0–14 inertness is required. Pairs with our PTFE pipe for large-bore trunk lines.
WFI, API and sterile fluid transfer requiring FDA compliance and cleanability. See our PTFE flexible tubing for peristaltic pump service.
UPW distribution, aggressive etchants, CMP slurries and high-purity gas lines where ultra-low extractables matter.
Product and CIP lines where non-stick surface and FDA 21 CFR 177.1550 compliance are mandatory.
Sleeving and insulation for high-voltage and high-frequency circuits. Dielectric strength above 45 kV/mm.
Air lines, spray equipment, control tubing and analytical instrument feed lines. Pairs with our PTFE hoses in flexible connection points.
Unparalleled chemical resistance and broad temperature range. PVC, PU and Nylon degrade when exposed to strong acids, bases, oxidisers or high temperatures. PTFE tube handles these extremes, offering long-term reliability in harsh conditions where other materials would fail quickly.
Yes. Our KX-PTFE-SM grade is manufactured from 100% virgin PTFE resin compliant with FDA, USP Class VI and EU regulations for food contact. The inert nature of PTFE ensures no leaching or contamination, making it ideal for process lines, peristaltic pump tubing and transfer lines in sensitive industries.
PTFE is semi-rigid, so proper connection is crucial. The most common methods are compression fittings (stainless steel or brass ferrules and nuts) or flared fittings. For push-to-connect fittings, confirm they are rated for semi-rigid tubing. Always cut the tube end squarely and deburr to prevent leaks. Our engineering team can recommend compatible fittings for your system.
Standard PTFE tube is semi-flexible. Minimum bend radius is typically 4–5 times the outer diameter. For tight bends or constant flexing, specify the KX-PTFE-BRAID overbraided grade or explore our PTFE flexible tubing range, which incorporates a helical coil for superior kink resistance.
Lower mechanical strength and abrasion resistance compared with metals. It can creep (cold flow) under sustained mechanical load or compression. It is also permeable to certain gases. For high external abrasion, heavy constant loads or critical gas-barrier duty, consult our engineers to select the optimal grade or a reinforced variant such as KX-PTFE-BRAID.
As temperature increases, pressure capability decreases. Our table ratings are at 20 °C. At the maximum continuous temperature of 260 °C, safe working pressure is approximately 25–30 % of the room-temperature rating. De-rate pressure according to operating temperature — our technical datasheets provide detailed de-rating curves for accurate system design.
Yes. Tube can be produced in various colours (red, blue, yellow, black) for line coding, and permanent printing or laser marking with part numbers, size, material grade or company logos is available to aid identification, inventory management and compliance tracking. Send your colour and marking specification for a quotation.
Store in original packaging in a cool, dry, dark place away from direct sunlight and heat sources. Avoid any crushing loads. While PTFE is very durable, protect it from sharp objects that could score or cut the surface. Before installation, ensure the work area is clean to prevent contamination of the inert bore, especially for high-purity applications.
Send us your inner diameter, outer diameter, wall thickness, length, grade preference or finished-part drawing. Our export team replies within 24 hours and confirms grade selection, lead time, packaging and documentation before you place a bulk order.
