PTFE Tube for Chemical Processing
Chemical-Grade PTFE Tubing Factory
The chemical industry has a core requirement for pipeline materials: corrosion resistance. As a professional PTFE Tube for Chemical Processing manufacturer, Besteflon has provided chemical enterprises with PTFE hoses solutions resistant to strong acids, strong alkalis, organic solvents, and strong oxidizing agents for many years. Our chemical-grade PTFE tubes are manufactured from 100% virgin PTFE resin without any recycled material additives, ensuring chemical compatibility at the raw material level. Our product range spans from laboratory-grade capillaries to industrial-grade pipes, with specifications customizable according to specific application conditions. Procurement managers and process engineers at chemical plants can directly consult our technical team for selection recommendations and quotations.
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PTFE Tube Specifications for Chemical Processing
The selection of chemical piping systems requires a comprehensive consideration of the medium type, concentration, temperature, pressure, and piping layout. The following specification ranges represent common options for PTFE tubes used in the chemical industry; when selecting a specific configuration, it is recommended to consult with Besteflon engineers based on the actual operating conditions.
| Parameter | Scope |
| Inner Diameter (ID) | 2 mm – 50 mm |
| Outer Diameter (OD) | 4 mm – 54 mm |
| Wall Thickness | 0.75 mm – 2 mm |
| Working Pressure | 2.5bar-15bar |
| Working Temperature | -65°C to +260°C |
| Chemical Compatibility | Resistant to almost all acids, alkalis, organic solvents, and strong oxidizing agents |
| Coefficient of Friction | 0.1 |
| Standard Length | 50–150 meters per roll (customizable to specific requirements) |
| Color | Natural color (milky white), translucent, black (conductive grade), custom colors available |
| Standard Certification | ISO9001;IATF16949;FDA;Rohs;SGS |
Custom Specifications
Chemical processing units often require non-standard dimensions—such as special pipe diameters to accommodate existing equipment interfaces, unconventional wall thicknesses for high-pressure or vacuum operating conditions, or specific lengths to reduce on-site joints. Besteflon supports full-dimensional customization.
Non-standard ID/OD:
Any combination of inner diameter and outer diameter; corresponding molds can be customized.
Thick-walled pipe:
maximum wall thickness of 2 mm; suitable for high-pressure chemical piping or vacuum applications.
Thin-walled pipe:
wall thickness as low as 0.7 mm, used for low-pressure sampling or analytical pipelines.
Custom length cutting:
precision cutting according to installation requirements; tolerances can be negotiated.
Conductive grade customization:
Incorporates carbon black filler to achieve a surface resistance of 10⁶–10⁹ Ω, suitable for conveying flammable or explosive media.
Why PTFE Tube Is the Best Choice for Chemical Processing
The root cause of pipeline failures in chemical plants is almost invariably corrosion of the materials by the process media. Rubber pipes may expand and crack; stainless steel can suffer from chloride-induced pitting corrosion; while PP and PVDF prove ineffective when exposed to strong oxidizing agents. The reason PTFE has become the “ultimate pipeline material” in the chemical industry is that it outperforms all other options across the following key dimensions.
1. Chemical Resistance
The bond energy of the carbon–fluorine bond in PTFE reaches as high as 485 kJ/mol, making it one of the strongest single bonds in organic chemistry. This dense layer of fluorine atoms acts like a “armor,” almost completely preventing any chemical reagents from penetrating, thereby endowing PTFE with near-perfect inertness in chemical processing environments.
• Concentrated sulfuric acid (98%): Fully compatible; non-corrosive and non-swelling.
• Concentrated hydrochloric acid (37%): Fully compatible
• King water (HCl + HNO₃): Compatible (long-term immersion under certain extreme conditions requires evaluation)
• Hydrofluoric acid (HF): PTFE is one of the few materials that can withstand HF.
• Sodium hydroxide (50%): Fully compatible
• Organic solvents (acetone, ethanol, THF, dichloromethane, etc.): Fully compatible
• Organic solvents (acetone, ethanol, THF, dichloromethane, etc.): Fully compatible
• Halogens (chlorine gas, bromine water): Compatible at room temperature
2. Temperature Performance
Chemical reactions often occur at extreme temperatures. PTFE tubes are suitable for operating temperatures ranging from –65°C to +260°C, within which their mechanical properties, chemical resistance, and electrical properties remain stable：
• Low-temperature performance: At-65°C, the material does not crack or undergo shrinkage deformation; it is suitable for low-temperature sampling and condensate transportation.
• High-temperature rating: No degradation upon continuous use at 200 °C; can withstand short-term exposure to 260 °C.
• Thermal cycling resistance: repeated heating and cooling cycles will not cause cracking or delamination of the pipe wall.
• Comparison with other materials: PVC softens at temperatures above 60°C; silicone degrades at temperatures above 200°C; and PP fails at temperatures above 100°C.
3. Purity & Non-Contamination
In chemical production processes, impurities leached from piping materials may lead to batch rejection or non-compliant products; PTFE Tubes demonstrate exceptional performance in this regard.
• The metal ion leaching amount is low, meeting the transportation requirements for semiconductor and electronic-grade chemicals.
• Non-absorbent medium
• Does not precipitate organic compounds; suitable for high-purity water and high-purity reagent systems.
• Long-term use ensures no discoloration or yellowing, and does not compromise the quality of the medium.
4. Low Friction & Self-Cleaning
The PTFE coefficient of friction is only 0.1, one of the lowest among all solid materials. In chemical piping systems, this means：
• The medium exhibits low flow resistance, thereby reducing pumping energy consumption.
• High-viscosity fluids can also flow smoothly through the system, reducing the risk of pipe blockage.
• The inner wall exhibits non-stick properties, reducing the cleaning time by more than 50% during batch switching.
• Reduces scaling and residue buildup, thereby extending the pipeline maintenance cycle.
PTFE Tube Types for Chemical Applications
Chemical processing applications vary widely, and a single pipe type cannot meet all requirements. Besteflon offers six different structural configurations of PTFE tubes, each designed to address specific chemical piping needs.
Key Performance Parameters
| No. | Specification | Outer Diameter | Inner Diameter | Tube Wall Thickness | Working Pressure | Burst Pressure | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | inch | mm | inch | mm | inch | psi | bar | psi | bar | ||
| 1 | 2 × 4 | 4 | 0.157 | 2 | 0.079 | 1 | 0.039 | 218 | 15.0 | 870 | 60 |
| 2 | 2.5 × 4 | 4 | 0.157 | 2.5 | 0.098 | 0.75 | 0.030 | 83 | 5.8 | 334 | 23 |
| 3 | 3 × 5 | 5 | 0.197 | 3 | 0.118 | 1 | 0.039 | 218 | 15.0 | 870 | 60 |
| 4 | 3.2 × 5.2 | 5.2 | 0.205 | 3.2 | 0.126 | 1 | 0.039 | 218 | 15.0 | 870 | 60 |
| 5 | 3.5 × 5.5 | 5.5 | 0.217 | 3.5 | 0.138 | 1 | 0.039 | 218 | 15.0 | 870 | 60 |
| 6 | 4 × 6 | 6 | 0.236 | 4 | 0.157 | 1 | 0.039 | 181 | 12.5 | 725 | 50 |
| 7 | 5 × 7 | 7 | 0.276 | 5 | 0.197 | 1 | 0.039 | 152 | 10.5 | 609 | 42 |
| 8 | 5 × 8 | 8 | 0.315 | 5 | 0.197 | 1.5 | 0.059 | 167 | 11.5 | 667 | 46 |
| 9 | 6 × 8 | 8 | 0.315 | 6 | 0.236 | 1 | 0.039 | 127 | 8.8 | 508 | 35 |
| 10 | 6.5 × 8.5 | 8.5 | 0.335 | 6.5 | 0.256 | 1 | 0.039 | 111 | 7.7 | 444 | 30.6 |
| 11 | 8 × 10 | 10 | 0.394 | 8 | 0.315 | 1 | 0.039 | 94 | 6.5 | 377 | 26 |
| 12 | 10 × 12 | 12 | 0.472 | 10 | 0.394 | 1 | 0.039 | 73 | 5.0 | 290 | 20 |
| 13 | 12 × 14 | 14 | 0.551 | 12 | 0.472 | 1 | 0.039 | 60 | 4.1 | 239 | 16.5 |
| 14 | 13 × 15 | 15 | 0.591 | 13 | 0.512 | 1 | 0.039 | 58 | 4.0 | 232 | 16 |
| 15 | 14 × 16 | 16 | 0.630 | 14 | 0.551 | 1 | 0.039 | 62 | 4.3 | 247 | 17 |
| 16 | 16 × 18 | 18 | 0.709 | 16 | 0.630 | 1 | 0.039 | 44 | 3.0 | 174 | 12 |
| 17 | 16 × 19 | 19 | 0.748 | 16 | 0.630 | 1.5 | 0.059 | 65 | 4.5 | 261 | 18 |
| 18 | 19 × 21 | 21 | 0.827 | 19 | 0.748 | 1 | 0.039 | 44 | 3.0 | 174 | 12 |
| 19 | 19 × 22 | 22 | 0.866 | 19 | 0.748 | 1.5 | 0.059 | 65 | 4.5 | 261 | 18 |
| 20 | 19 × 23 | 23 | 0.906 | 19 | 0.748 | 2 | 0.079 | 73 | 5.0 | 290 | 20 |
| 21 | 20 × 22 | 22 | 0.866 | 20 | 0.787 | 1 | 0.039 | 36 | 2.5 | 145 | 10 |
| 22 | 20 × 23 | 23 | 0.906 | 20 | 0.787 | 1.5 | 0.059 | 51 | 3.5 | 203 | 14 |
| 23 | 20 × 24 | 24 | 0.945 | 20 | 0.787 | 2 | 0.079 | 69 | 4.8 | 276 | 19 |
| 24 | 25 × 28 | 28 | 1.102 | 25 | 0.984 | 1.5 | 0.059 | 36 | 2.5 | 145 | 10 |
| 25 | 25 × 29 | 29 | 1.142 | 25 | 0.984 | 2 | 0.079 | 51 | 3.5 | 203 | 14 |
| 26 | 32 × 36 | 36 | 1.417 | 32 | 1.260 | 2 | 0.079 | 36 | 2.5 | 145 | 10 |
| 27 | 38 × 42 | 42 | 1.654 | 38 | 1.496 | 2 | 0.079 | 36 | 2.5 | 145 | 10 |
| 28 | 50 × 54 | 54 | 2.126 | 50 | 1.969 | 2 | 0.079 | 36 | 2.5 | 145 | 10 |
• Complies with SAE 100R14 standard.
• Custom sizes and specifications are available. Please contact us to discuss your specific requirements.
Quality Control & Manufacturing
Chemical piping systems have extremely stringent requirements for quality consistency—a single defect in a pipe can lead to a complete shutdown of the entire production line or even result in a safety incident. Besteflon’s comprehensive quality control system, spanning from raw materials to finished products, ensures that every meter of piping can withstand the challenges posed by chemical environments.
manufacturing process
Chemical Processing Applications
PTFE Tube vs Other Materials for Chemical Service
When selecting materials for chemical piping systems, PTFE is not the only option available. Each material has its specific application scenarios; the choice depends on a comprehensive trade-off between the type of medium, temperature, pressure, and cost.
| Characteristic | PTFE | FEP | PFA | PP | PVDF | 316L Stainless Steel | Glass |
|---|---|---|---|---|---|---|---|
| Maximum Operation Temperature | 260°C | 200°C | 260°C | 100°C | 150°C | 800°C | 500°C |
| Resistance to Strong Acids | Excellent | Very Good | Excellent | Acceptable | Very Good | Unacceptable (Sensitive to Cl⁻) |
Very Good |
| Resistance to Strong Alkalis | Excellent | Very Good | Excellent | Acceptable | Very Good | Unacceptable | Unacceptable |
| Resistance to Organic Solvents | Excellent | Very Good | Excellent | Unacceptable | Very Good | Very Good | Very Good |
| Resistance to Strong Oxidizing Agents | Very Good | Acceptable | Very Good | Unacceptable | Good | Unacceptable | Unacceptable |
| Purity | Very High | High | Very High | Acceptable | High | Medium (Metal Precipitation) |
High |
| Transparency | Not Transparent | Transparent | Semitransparent | Semitransparent | Semitransparent | Not Transparent | Transparent |
| Flexibility | Acceptable | Good | Good | Acceptable | Acceptable | Rigid | Rigid |
| Hot-melt Connection | No | Yes | Yes | Yes | Yes | Welding | No |
| Unit Price (Relative) | Medium | High | Very High | Low | High | Medium | High |
Selection Recommendations
• Comprehensive coverage of strong acids, strong bases, and solvents → PTFE（The broadest spectrum of chemical tolerance）
• Requires transparent observation of internal fluids → FEP or PFA
• Hot-melt welding is required to reduce joint leakage. → PFA or FEP（PTFEcannot be thermally fused.）
• Budget constraints; mild conditions. → PP
• High purity + high-temperature resistant + heat-meltable → PFA（But it has the highest price.）
• High-temperature resistant and corrosion-resistant, with high pressure-bearing capacity → 316L Stainless Steel（but is vulnerable to chloride ions）
• The reaction process needs to be monitored. → Glass (but brittle and not pressure-resistant)
Best PTFE Tube Manufacturer & Factory
1. Direct Manufacturer with 20 Years of Experience
Certificate
IS09001:2015 | RoHS Direcive (EU)2015/863 | USFDA21 CFR 177.1550 | EU GHS SDS | ISO/TS 16949