PTFE Capillary Tube
Besteflon is a leading manufacturer of professional PTFE capillary tubes, offering precision micro-tubes with inner diameters ranging from 0.3 mm to 8.38 mm for OEMs and distributors in analytical instruments,
medical devices, fluid transportation, and related industries. As a comprehensive provider of PTFE tubing,
Besteflon supports flexible specification customization, delivers samples within three days, and begins production planning for bulk orders as early as seven days.
Besteflon is head quartered in Huizhou, Guangdong, China, specializing in various aspects of PTFE Capillary Tube and PTFE TUBE
Combining over 20 years of experience and well-equipped production facilities, our team continuously produces and supplies PTFE Capillary Tube that meet the highest standards
PTFE Capillary Tube Features and Benefits
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PTFE Capillary Tube Product Details
PTFE Capillary Tube
Verifying specifications is merely the first step in selection. The end surface treatment of PTFE capillary tubes affects sealing performance;
inner wall smoothness impacts fluid flow efficiency; color markings facilitate pipeline identification;
and packaging methods influence feeding efficiency—these details are crucial for successful integration into your system. Besteflon offers comprehensive options across all dimensions, as detailed below.
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Color & Marking Options
| Color Option | Instruction |
| Natural | Standard PTFE color, suitable for most applications |
| Translucent | The fluid state within the tube can be observed. |
| Color-coded | Red, blue, green, yellow, black, etc., for pipeline identification |
Packaging Options
| Packaging Options | Instruction | Specifications |
| Coil | Standard method with continuous length, suitable for automatic feeding | 100m/153m/305m |
| Custom Pack | Pack and label according to customer requirements | Negotiate and determine |
Enhanced Flow Efficiency
• OD（Outer Diameter）：The outer diameter of the tube determines the fit dimensions with the fittings.
• ID（Inner Diameter）：Lumen diameter determines flow rate and fluid properties
• Wall Thickness = (OD – ID) / 2：Affects the voltage withstand rating and flexibility
PTFE Capillary Tube Specifications
The first step in procuring PTFE capillary tubes is to verify that the specifications match. The inner diameter determines flow rate and velocity, the outer diameter affects joint fit, while wall thickness influences pressure resistance and flexibility—all three dimensions are essential. Besteflon offers a comprehensive standard series with inner diameters ranging from 0.3 mm to 8.38 mm, along with custom manufacturing options. Below are the most common specifications; for other sizes, please contact our engineers for evaluation.
|
Specification/ |
ID |
OD |
Meter/Roll |
|||||
|
|
|
S-Type |
Wall Thickness/ |
T-Type |
Wall Thickness/ |
L-Type |
Wall Thickness/ |
|
|
30 |
0.3 |
0.76 |
0.23±0.05 |
0.76 |
0.23±0.05 |
0.6 |
0.15±0.04 |
305 |
|
28 |
0.38 |
0.84 |
|
0.84 |
|
0.68 |
|
305 |
|
26 |
0.46 |
0.92 |
|
0.92 |
|
0.76 |
|
305 |
|
24 |
0.56 |
1.16 |
0.30±0.06 |
1.06 |
0.25±0.06 |
0.86 |
|
305 |
|
23 |
0.66 |
1.26 |
|
1.16 |
|
0.96 |
|
305 |
|
22 |
0.71 |
1.31 |
|
1.21 |
|
1.01 |
|
305 |
|
21 |
0.81 |
1.41 |
|
1.31 |
|
1.11 |
|
305 |
|
20 |
0.86 |
1.66 |
0.40±0.07 |
1.46 |
0.30±0.06 |
1.16 |
|
305 |
|
19 |
0.96 |
1.76 |
|
1.56 |
|
1.26 |
|
305 |
|
18 |
1.07 |
1.87 |
|
1.67 |
|
1.37 |
|
305 |
|
17 |
1.19 |
1.99 |
|
1.79 |
|
1.49 |
|
305 |
|
16 |
1.34 |
2.14 |
|
1.94 |
|
1.64 |
|
305 |
|
15 |
1.5 |
2.3 |
|
2.1 |
|
1.8 |
|
153 |
|
14 |
1.68 |
2.48 |
|
2.28 |
|
2.08 |
0.20±0.05 |
153 |
|
13 |
1.93 |
2.73 |
|
2.53 |
|
2.33 |
|
153 |
|
12 |
2.16 |
2.96 |
|
2.77 |
|
2.56 |
|
153 |
|
11 |
2.41 |
3.21 |
|
3.01 |
|
2.81 |
|
153 |
|
10 |
2.69 |
3.49 |
|
3.29 |
|
3.09 |
|
153 |
|
9 |
3 |
4 |
0.50±0.07 |
3.76 |
0.38±0.07 |
3.4 |
|
100 |
|
8 |
3.38 |
4.38 |
|
4.14 |
|
3.78 |
|
100 |
|
7 |
3.76 |
4.76 |
|
4.52 |
|
4.16 |
|
100 |
|
6 |
4.22 |
5.22 |
|
4.98 |
|
4.72 |
0.25±0.06 |
100 |
|
5 |
4.72 |
5.72 |
|
5.48 |
|
5.22 |
|
100 |
|
4 |
5.28 |
6.28 |
|
6.04 |
|
5.78 |
|
100 |
|
3 |
5.94 |
6.94 |
|
6.7 |
|
6.44 |
|
100 |
|
2 |
6.68 |
7.68 |
|
7.44 |
|
7.18 |
|
100 |
|
1 |
7.46 |
8.46 |
|
8.22 |
|
7.96 |
|
100 |
|
0 |
8.38 |
9.38 |
|
9.14 |
|
8.88 |
|
100 |
The above are common specifications; customizations for ID, OD, wall thickness, and length are supported.
Why Choose Besteflon PTFE Capillary Tubes
Having reviewed the specifications and details, the natural next question is: With so many PTFE capillary suppliers on the market, what sets Besteflon apart? The key distinction lies in the fact that most sellers at the top of search results are distributors or laboratory consumables suppliers, offering fixed specifications, limited customization options, and weak technical support. Besteflon is a manufacturer with full end-to-end control—from raw material extrusion to finished product testing—making these six advantages the primary reasons why B2B clients choose us.
Factory-Direct Manufacturing:
Besteflon operates its own PTFE extrusion production line, maintaining full internal control throughout the entire process from raw materials to finished products. Unlike distributors, you work directly with the factory, eliminating intermediate markups while enjoying more flexible customization options and consistent batch quality.
Ultra-Fine ID Down to 0.3mm:
A diameter of 0.3 mm represents one of the precision limits for PTFE capillary manufacturing. Besteflon has achieved stable mass production at this specification, meeting the stringent requirements for consistent inner diameter in precision applications such as ICP atomizer injection tubes and HPLC capillaries.
Flexible Customization:
Standard specifications cannot meet all project requirements. Besteflon offers customizable inner diameter, outer diameter, wall thickness, length, color, and cutting methods, along with drawing review services. We handle orders ranging from small trial batches to large-scale production runs, covering orders from a single roll up to tens of thousands of meters.
Fast Turnaround:
• Samples: Delivered within 3 working days (standard specifications can be shipped on the same day)
• Small-batch trial production: 5–7 working days
• Batch Orders: Production scheduling starts within 7–10 working days
• Express service: Delivery time can be reduced to 5 days depending on production capacity
Compared to the typical 4–8-week delivery times of international brands, Besteflon’s rapid delivery ensures your project won’t have to wait.
Consistent Quality Control:
Each batch of PTFE capillary tubes undergoes the following processes before leaving the factory:
• Comprehensive inspection of inner diameter, outer diameter, and wall thickness
• Visual inspection (surface smoothness, color variation)
• Voltage endurance test (test standards customized according to application scenarios)
• Optional: Material composition analysis report, RoHS declaration
Direct Engineer Support:
While major brands have complex customer service processes with multiple layers of interaction, Besteflon enables direct communication with PTFE extrusion engineers. From selection recommendations and customization feasibility assessments to technical inquiries – you’ll receive professional responses within 24 hours, rather than following standard templates.
PTFE vs Other Capillary Tube Materials
After identifying the application scenarios, you should also determine whether PTFE is the most suitable material. In some cases, PFA is preferable; in others, FEP proves more practical; while certain applications require PEEK exclusively. The following comparison tool will help you make a quick decision—if you still have questions, Besteflon engineers can provide tailored recommendations based on your specific operational requirements.
| Characteristics | PTFE capillary tube |
PFA capillary tube | FEP capillary tube |
PEEK capillary tube |
|
Working Temperature |
-65~+260°C | -200~+260°C | -200~+200°C | -60~+250°C |
|
Chemical Resistance |
Excellent (for almost all chemicals) |
Excellent |
Excellent |
Good (unsuitable for concentrated sulfuric acid) |
|
Transparency |
Milky white | Translucent | Transparent | Opaque |
|
Flexibility |
Flexible but not foldable | Flexible | Most flexible | Hard |
|
Typical Application |
Analysis instruments, high-temperature fluids | High-purity fluids, semiconductors |
Visual flow path, low temperature |
High pressure requirements; stringent mechanical strength specifications |
| Price Level | Medium | High | Medium |
High |
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PTFE Capillary Tube Applications Applications
Certification and quality control have verified the supplier’s qualifications; the next question is: can this tubing material be used in my industry? Requirements for PTFE capillary tubes vary significantly across industries—analytical instruments prioritize inner diameter accuracy, medical devices emphasize biocompatibility, while fluid transportation applications demand pressure and temperature resistance. Besteflon provides tailored specification recommendations and quality control solutions based on specific application scenarios.
Analytical Instruments
For ICP-OES/ICP-MS atomizers, HPLC capillary connections, and capillary electrophoresis systems, the inner diameter accuracy and surface finish of tubing materials are critically demanding. Besteflon’s 0.3 mm–1.0 mm micro-diameter series PTFE capillary tube is specifically optimized for precision analysis applications, featuring smooth inner walls that minimize sample residue and cross-contamination. For PTFE smooth bore tube requiring larger inner diameters, Besteflon also offers comprehensive specifications and quality control solutions.
Medical Devices
Catheter guiding sheaths, microinfusion tubes, and diagnostic device flow paths – PTFE capillaries used in medical devices must meet biocompatibility requirements. Besteflon is manufactured from medical-grade PTFE material
Fluid Transfer Systems
Chemical reagent delivery, high-purity fluid transportation, and micro-scale cooling circuits – PTFE’s chemical inertness and wide temperature range (-65°C to +260°C) make it the preferred material for corrosive fluid handling. For piping systems requiring enhanced flexibility and flex compensation, Besteflon also offers PTFE convoluted tube solutions
Electronics & Semiconductor
Insulating sleeves, sensor protection tubes, and high-purity fluid transportation – PTFE’s excellent dielectric properties (dielectric constant 2.1, dielectric strength 25 kV/mm) and low leaching characteristics make it ideal for clean environment requirements in the semiconductor and electronics industries.
Authentication Certificate
Besteflon is a professional and formalized company. In the course of the company’s development, we have continuously accumulated experience and improved our technical level, and are committed to providing customers with the highest quality products and services.
FAQ
1.What is the minimum inner diameter of a Besteflon PTFE capillary?
Minimum inner diameter of 0.3 mm enables stable mass production. Finer specifications can be evaluated based on requirements.
2.Can we customize non-standard specifications?
Yes. Besteflon supports custom parameters such as ID, OD, wall thickness, length, and color. The minimum order quantity is 1 roll (standard specification) or can be negotiated for non-standard specifications
3.How long is the sample delivery time?
Standard specification samples can be shipped on the same day, while customized specifications will be delivered within 3 working days.
4.Can PTFE capillaries be used in food contact applications?
Besteflon is manufactured using FDA-compliant PTFE raw materials and comes with relevant certifications.
5.How to choose between PTFE capillary tubes and PFA capillary tubes?
For transparency or higher purity, choose PFA; for superior heat resistance and lower friction coefficient, select PTFE. Besteflon engineers can provide tailored recommendations based on your specific application requirements.
6.How long is the service life of PTFE?
All PTFE materials have an unlimited shelf life when stored under normal warehouse conditions. In fact, a common industry joke is that for 85 years, PTFE “hasn’t existed long enough” to determine how long it can last!
7.Do you support both roll packaging and cutting packaging methods?
Support: Shipped in rolls by default, but can be cut to specified lengths.