PTFE/PFA Thin wall hoses
Technical specifications
Standard product range consists of a set of thin wall tubes made by using natural PTFE raw material. Inside diameter: from 1 mm to 25 mm. Wall thickness: from 0,5 mm to 3,0 mm. Length: based on diameter and wall thickness. For market most requested diameters, standard length coils are supplied: from 25 meters to 50 and 100 meters. Owing to state of the art technology plants is able to produce, for some diameters, coils with lengths that can vary from 150 to 1,000 meters..
Industrial sectors
Fluid, gas and other materials transport industry; Electronic and electrical industry; Automotive and motorcycle industry; Semiconductor industry; Generic industry.
Upon request can produce TWT with custom specifications such as: diameter and tolerance as requested by the client’s drawing, calibrated outside diameter, FDA raw materials, pigmented raw material available in several colours (ROHS), anti-static and/or special additive fi lled raw materials, different shape sections, tubes cut at specifi c measure and/or treated as requested by the client’s drawing.
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Maximum excentration tolerance |
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PTFE TWT - Standard dimensions and property table
| Technical specifications | Unit of measure | Test methods (ASTM) | PTFE | PFA |
| Physical | ||||
| Specific gravity | gr/cm2 | D792 | 2,16 | 2,15 |
| Appearance | Transluced White | Transparent | ||
| Water permeability | % | D570 | <0,01 | <0,03 |
| Mechanical | ||||
| Tensile Strength | Kg/cm2 | D638 D1708 |
250-300 | 280 |
| Elongation at break | % | D638 | 250-400 | 300 |
| Modulus of elasticity | MPa | D747 | 440 a520 | 650 |
| Hardness | Shore D | D2240 | 55-65 | 60-65 |
| Thermal | ||||
| Melting point | °C | +327° | +310° | |
| Maximum operating temperature | °C | +260° | +260° | |
| Minimum operating temperature | °C | -60° | -60° | |
| Electrical | ||||
| Dielectric strength | KV/mm | D149 | 80 | 80 |
| Dissipation factor | 0,0003 | 0,00075 | ||
| Chemical | ||||
| Chemical resistance | Excellent | Excellent | ||
| Endurance to atmospheric pitting corrosion | Excellent | Excellent | ||
PFA tubes
Technical specifications
PFA standard tubes are made by using high molecular weight and very pure natural PFA raw material. Inside diameter: from 2 mm to 25 mm. No length limit. Packaging in coils or on rolls.
Industrial sectors
• Fluid, gas and other materials transport industry • Semiconductor industry • Healthcare industry • Electronics. Upon request PFA tubes can also be produced with custom specifications such as: diameter and tolerance as shown by the client’s drawing, various shape sections, hoses cut to specific measure and/or treated as shown by the client’s drawing.
PFA Tubes – Imperial standard dimensions range table
| Description | Outside diameter (mm) | Tolerance (mm) | Inside diameter (mm) | Thickness (mm) | Tolerance (mm) | Weight (g/m) |
| Tubo 1/4" S | 6,35 | +0,076/-0,127 | 4,35 | 1 | +0,125/-0,102 | 36,1 |
| Tubo 1/4" | 6,35 | +0,076/-0,127 | 3,21 | 1,57 | +0,125/-0,102 | 50,7 |
| Tubo 3/8" | 9,52 | +0,076/-0,127 | 6,37 | 1,57 | +0,125/-0,102 | 84,5 |
| Tubo 1/2" | 12,7 | +0,076/-0,127 | 9,56 | 1,57 | +0,125/-0,102 | 118 |
| Tubo 3/4" | 19,05 | ±0,125 | 15,91 | 1,57 | +0,125/-0,102 | 185,4 |
| Tubo 1" | 25,4 | ±0,125 | 22,26 | 1,57 | ±0,125 | 252,7 |
PFA Tubes – Metric standard dimensions range table
| Description | Outside diameter (mm) | Tolerance (mm) | Inside diameter (mm) | Thickness (mm) | Tolerance (mm) | Weight (g/m) |
| Tubo 2x4 | 4 | ±0,1 | 2 | 1 | ±0,1 | 20,3 |
| Tubo 4x6 | 6 | ±0,1 | 4 | 1 | ±0,1 | 33,8 |
| Tubo 6x8 | 8 | ±0,1 | 6 | 1 | ±0,1 | 47,3 |
| Tubo 8x10 | 10 | ±0,1 | 8 | 1 | ±0,1 | 60,8 |
| Tubo 10x12 | 12 | ±0,1 | 10 | 1 | ±0,1 | 74,3 |
| Tubo 12x14 | 14 | ±0,1 | 12 | 1 | ±0,1 | 87,8 |