PTFE Convoluted Tube
PTFE Convoluted Tube
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Certifications: ISO9001:2015 │ RoHS Directive (EU) 2015/863 │ US FDA 21 CFR 177.1550 │ EU GHS SDS
Your PTFE Convoluted Tube Supplier
Exceptional Flexibility
Designed with a convoluted structure, these tubes bend and twist easily without kinking.
Ideal for installations in tight or complex piping systems.
Pre shipment inspection
Pre-shipment air tightness test is mandatory for all our products. Each meter of the corrugated PTFE tube is checked thoroughly to eliminate leakage issues before dispatch.
0% Quality Complaint
BESTEFLON has an advanced in-house quality testing lab, QC inspection team, 100% inspected PTFE convoluted tubes before shipment, Guarantee the product quality, and eliminates your concerns.
Fast Delivery
BESTEFLON keeps stable delivery time 25 days or less. We have sets of production equipment and testing system that ensure your delivery date. Even in peak season, we can catch the delivery time. There will be no delay.
Why Choose PTFE Convoluted Tube Tube?
Ptfe Smooth Bore Tube Common Size Range
| No. | Specification | Outer diameter | Inner diameter | Working pressure | Burst pressure | Minimum bending radius | |||||
| (inch) | (mm) | (inch) | (mm) | (psi) | (bar) | (psi) | (bar) | (inch) | (mm) | ||
| 1 | 1/4″ | 0.433 | 11 | 0.256 | 6.5 | 60 | 4 | 210 | 16.0 | 0.591 | 15 |
| 2 | 5/16″ | 0.472 | 12 | 0.315 | 8.0 | 60 | 4 | 210 | 16.0 | 0.787 | 20 |
| 3 | 3/8″ | 0.571 | 14.5 | 0.394 | 10.0 | 60 | 4 | 210 | 16.0 | 0.984 | 25 |
| 4 | 1/2″ | 0.689 | 17.5 | 0.512 | 13.0 | 60 | 4 | 210 | 16.0 | 0.984 | 25 |
| 5 | 5/8″ | 0.846 | 21.5 | 0.630 | 16.0 | 45 | 3 | 180 | 12.0 | 1.181 | 30 |
| 6 | 3/4″ | 1.004 | 25.5 | 0.748 | 19.0 | 45 | 3 | 180 | 12.0 | 1.969 | 50 |
| 7 | 1 | 1.280 | 32.5 | 0.984 | 25.0 | 45 | 3 | 150 | 12.0 | 2.362 | 60 |
| 8 | 1-1/2″ | 1.890 | 48 | 1.496 | 38.0 | 38 | 3 | 135 | 12.0 | 3.937 | 100 |
| 9 | 2″ | 2.402 | 61 | 1.969 | 50.4 | 30 | 2 | 120 | 10.0 | 4.921 | 125 |
* Meet SAE 100R14 standard.
* Customer-specific products may be discussed with us for detailed.
Applications For PTFE Convoluted Tube
Aerospace & Industrial Machinery
The excellent flexibility and temperature range tolerance of PTFE tubes make them reliable for aerospace systems, hydraulic assemblies, pressurized gas lines, and protective housings for cables and instrumentation in advanced industrial equipment.
Automotive & Transportation Systems
In automotive applications, PTFE convoluted tubing serves as coolant hoses, brake fluid lines, fuel transfer tubes, and protective conduits for wiring or pneumatic systems. Its flexibility and temperature tolerance make it ideal for tight engine spaces and thermal cycling conditions.
Medical & Laboratory Equipment
PTFE convoluted tubes are used in medical device systems, laboratory fluid transfer, respiratory apparatus, and analytical instrumentation where chemical inertness, sterilizability, and biocompatibility are essential.
Semiconductor & Electronics Manufacturing
Due to its high purity, chemical resistance, and dielectric properties, PTFE convoluted tubing is suitable for ultra clean environments like semiconductor fabrication, electronic chemical delivery systems, and protective conduits in automation and robotics.
Chemical Processing & Petrochemical Industry
Besteflon PTFE corrugated tubes are widely used for chemical transfer lines, solvent handling, and aggressive media transport thanks to their outstanding chemical inertness and corrosion resistance. They ensure safe, leak free fluid movement in chemical plants, refineries, and petrochemical facilities.
Pharmaceuticals & Food & Beverage Processing
Approved for FDA food and pharmaceutical use, PTFE corrugated tubes provide hygienic fluid transfer, cleaning friendly surfaces, and compliance with regulatory standards. They are used in liquid handling, beverage filling lines, sterilized production equipment, and high purity fluid systems.
Why Choose Besteflon PTFE Convoluted Tube?
With over 20 years of specialized experience, Besteflon offers PTFE convoluted tubes that combine high-purity materials, advanced manufacturing, and continuous innovation. Supported by a complete supply chain, modern production facilities, and international certifications such as ISO9001, IATF16949, FDA, and RoHS, our tubes deliver superior reliability, long-term durability, and consistent performance across industrial, automotive, chemical, pharmaceutical, and food-grade applications. Choosing Besteflon means trusting a brand with proven expertise, stringent quality control, and innovative solutions that set our products apart in the PTFE hose market. As a China PTFE tube factory, Besteflon supports customers with OEM customization, stable production capacity, and strict inspection before shipment.
Customer Success Story – Besteflon PTFE Convoluted Tube in High-Performance Hydraulic Systems
Client: A leading German hydraulic system integrator, specializing in precision fluid connections for racing cars and heavy industrial equipment.
Challenge:
- Extremely limited space: Engine compartments had less than 20mm clearance, making conventional PTFE straight tubes prone to kinking.
- Extreme conditions: Operating temperatures above 200°C with high-frequency vibrations caused traditional rubber hoses to harden and crack within three months.
Besteflon Solution:
We provided custom PTFE convoluted tubes with a minimum 15mm bending radius, reinforced with SS304 stainless steel braiding and a conductive inner lining, ensuring flexibility, durability, and safety in tight, high-temperature environments.
Results:
- Zero failures: The tubes have run continuously for 14 months without a single burst or leak due to bending fatigue.
- 40% faster installation: Exceptional flexibility allowed workers to route tubes manually without expensive bending tools, cutting assembly time and costs.
- Long-term cost savings: Chemical inertness extended tube life by 3×, reducing maintenance costs by 65%.
Customer Testimonial:
“We used to worry about tube life in tight spaces, but this convoluted tube exceeded our expectations. Its 15mm bending radius proved highly reliable in real-world tests, and its excellent rebound solved installation challenges we had struggled with for years.”
— Thomas K., Chief Procurement Engineer
FAQ
1. Can you make a black version? Is it possible to add a stainless steel braided reinforcement layer on the outside of the tube?
Yes. You can choose the black color. PTFE corrugated can be wrapped with 304/316 stainless steel braided reinforcement, which greatly improves the tube’s overall performance and pressure resistance.
2. What is the maximum working pressure of this PTFE convoluted tube at 150°C? What is its burst pressure?
Our PTFE convoluted tube has a maximum working pressure of 60 psi at 150°C, with a burst pressure of up to 210 psi.
3. What is the minimum bend radius of your PTFE convoluted tube? Will it crack or deform in tight spaces?
A: The minimum bend radius is 15mm. Engineered with premium virgin PTFE, our tubes maintain superior flexibility without cracking or permanent deformation, even under repeated flexing in extremely narrow spaces
4. What is the Minimum Order Quantity (MOQ)?
We offer flexible MOQ to accommodate orders of all sizes.
For small-batch customers: We provide low MOQ options for clients requiring trial orders and small quantity demands.
For bulk order customers: We offer customized solutions with favorable pricing for long-term distributors and OEM clients placing large orders.
Feel free to contact us to learn more about how we can arrange a suitable MOQ and delivery time according to your project requirements.
5. Can you provide samples for testing?
Yes, we provide PTFE convoluted tube samples for customers to conduct testing and verification. We can offer samples tailored to your project requirements in terms of product performance, dimensions and materials, ensuring the products meet your application standards. Please contact us via the inquiry form to apply for samples and get more details about testing.
6. Does the convoluted structure significantly reduce flow rate or cause material residue?
While the convoluted design may reduce flow rate by approximately 10%-15% compared to smooth tubes due to turbulence, its minimum bending radius is only 1/3 that of a smooth tube, saving substantial installation space.
For high-viscosity fluids or applications requiring strict hygiene, we recommend our PTFE Smooth Bore Convoluted Hose, which balances flexibility with easy cleaning.
7.Will the tube collapse under vacuum or negative pressure conditions?
Standard convoluted tubes may lose about 1% of compressive strength in high-temperature vacuum environments above 150°C.
For vacuum applications, we offer SS304/316 stainless steel braided reinforcement, ensuring structural stability even at -0.9 bar without deformation.
8. How can static electricity be prevented when conveying fuel or chemical solvents?
For flammable fluids, our Conductive PTFE Convoluted Tube incorporates a conductive carbon black layer in the inner wall, reducing resistance to below 10⁶ Ω and safely discharging static charges through fittings. This fully complies with industrial anti-explosion safety standards.
9. How do you ensure the tubing does not become brittle under alternating high and low temperatures?
We use 100% Virgin PTFE. Compared to recycled materials, the pure PTFE increases flex-life by over 3 times. All tubes are FDA and RoHS certified, and maintain stable molecular structure in extreme temperature ranges from -65°C to +260°C without leaching impurities.
10. Can the ends of the convoluted tube connect directly to standard fittings, and how is leakage prevented under high-frequency vibration?
To ensure sealing, we provide flattened end treatments, creating smooth sealing surfaces at tube ends compatible with standard AN or flange fittings, preventing leaks even under high-frequency vibrations.