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PTFE Compression Molded Tube Product Introduction
Product Overview
PTFE Compression Molded Tubes are tubular products manufactured from pure Polytetrafluoroethylene (PTFE) resin through compression molding and sintering processes. They possess excellent chemical inertness and temperature resistance, making them an ideal choice for conveying corrosive media in the chemical, electronics, and medical industries.
Core Characteristics
· Superior Corrosion Resistance: Withstands all strong acids and alkalis, including aqua regia and hydrofluoric acid.
· Broad Temperature Range Application: Long-term stable use from -200°C to +260°C.
· High Purity: Metal ion content <1 ppm (Electronics grade can achieve <1 ppb).
· Self-Lubricating: Low friction coefficient, typically 0.04-0.1.
Product Specifications
· Size Range:
· Inner Diameter: Φ3 - Φ500 mm (Standard: Φ6 - Φ300 mm)
· Wall Thickness: 0.5 - 20 mm (Standard: 1 - 10 mm)
· Length: 0.5 - 5 m/piece (Standard: 1 - 3 m/piece)
· Tolerance Grades:
· Standard Grade: ±0.1% (Inner Diameter ≤50 mm)
· Precision Grade: ±0.05% (Special Customization)
Product Series
| Model | Characteristics | Applicable Scenarios |
| Standard Type | Pure PTFE, Economical & Practical | General Corrosive Environments |
| Reinforced Type | Glass/Carbon Fiber Reinforced | High Pressure / Wear-Resistant Applications |
| Electronic Grade | Ultra-High Purity (<1 ppb) | Semiconductor / Photovoltaics |
| Food Grade | FDA Certified | Food & Pharmaceutical Industry |
Typical Applications
· Chemical Industry: Pipelines for strong acids and alkalis.
· Electronics Industry: Ultra-pure chemical delivery systems.
· Medical Devices: High-purity fluid transfer lines.
· Food Industry: Media transfer compliant with FDA standards.
Quality Assurance
· Raw Material Control: Uses imported pure PTFE from DuPont, Daikin, etc.
· Production Process: 30-50 MPa Compression Molding + Program-controlled Temperature Sintering.
· Testing Standards:
· 100% Pressure Test (1.5 times working pressure)
· Spark Test (20 kV no breakdown)
· Dimensional Accuracy Inspection (CMM Measurement)
· International Certifications: ISO 9001, FDA, RoHS, etc.
With their excellent overall performance, PTFE Compression Molded Tubes are the preferred solution for corrosive media transfer systems. We provide professional technical support and customization services to meet your various application needs.
Product Specifications
| Parameter | Standard Specification | Customizable Range |
| Inner Diameter | Φ6 - Φ300mm | Φ3 - Φ500 mm |
| Wall Thickness | 1 - 10 mm | 0.5 - 20 mm |
| Length | 1 - 3 m/piece | 0.5 - 5 m/piece |
| Tolerance Grade | ISO 3302-1 | Special Precision Requirements |
Basic Performance Parameters
| Performance Indicator | Standard Type | Reinforced Type (25% GF) | Test Standard |
| Density (g/cm³) | 2.15 - 2.20 | 2.30 - 2.40 | ISO 1183 |
| Tensile Strength (MPa) | 25 - 30 | 40 - 45 | ISO 527 |
| Elongation at Break (%) | 300 - 350 | 200 - 250 | ISO 527 |
| Heat Deflection Temp. (°C / 0.45MPa) | 110 | 150 | ISO 75-1 |
| Surface Resistivity (Ω) | >10¹⁵ | 10³ - 10⁶ (Conductive Type) | IEC 60093 |
| Parameter | Standard Range | High-Precision Custom Range | Tolerance Grade |
| Inner Diameter (mm) | 6 - 300 | 3 - 500 | ±0.1% (≤50mm) |
| Wall Thickness (mm) | 1 - 10 | 0.5 - 20 | ±5% |
| Length (m) | 1 - 3 | 0.5 - 5 | ±10 mm |
| Roundness Error (mm) | ≤0.05 | ≤0.02 | ISO 3302-1 |
| Process Step | Key Parameter | Quality Control Point |
| Pre-forming | Pressure 35 ±5 MPa | Holding Time ≥30 min |
| Sintering | 380°C ±5°C / 4-6 h | Heating Rate 30°C/h |
| Machining | Turning Speed 800-1200 rpm | Ra ≤ 0.8 μm |
| Inspection | 20 kV Spark Test | No Breakdown Points |
| Model | Material Composition | Key Characteristics | Typical Application |
| PTFE-M | Pure PTFE | ltra-High Purity | Semiconductor / Medical |
| PTFE-GF25 | 25% Glass Fiber | High Rigidity | High-Pressure Systems |
| PTFE-CF15 | 15% Carbon Fiber | Conductivity | Anti-static Situations |
| PTFE-FDA | Food Grade PTFE | FDA Certified | Food & Pharmaceutical |
| Certification Type | Standard Number | Applicable Field |
| Pressure Piping | GB/T 1041 | Industrial Piping |
| Food Grade | FDA 21 CFR 177 | Food Processing |
| Medical Device | ISO 10993 | Medical Equipment |
| Semiconductor | SEMI F57 | Electronics Industry |
