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PTFE Tube Specialist · Advanced Fluro Private Limited

PTFE Corrugated Tube

Accordion-profile virgin PTFE tube — extreme flexibility, no braid, no fittings required. For tight-radius routing, vibration isolation, and dynamic applications.

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About PTFE Corrugated Tube

PTFE Corrugated Tube — also called convoluted tube — is a plain PTFE tube with an accordion-fold profile on the outer wall. Unlike standard smooth-bore PTFE tubing, the corrugated geometry allows the tube to flex significantly tighter without kinking, compressing, or losing its bore cross-section. There is no stainless steel braid, no overbraid, and no fittings required for most installations: just bare PTFE in a flexible, self-supporting form.

Advanced Fluro Private Limited manufactures corrugated PTFE tubes from virgin-grade PTFE resin using a controlled extrusion and corrugation process. The result is a flexible tube with the full chemical resistance and temperature range of virgin PTFE, in a form that bends and routes in spaces a rigid tube cannot reach. Applications include expansion joints, instrument connections, pump vibration isolation, chemical transfer through tight enclosures, and flexible gas sampling lines.

PTFE Corrugated Tube 1PTFE Corrugated Tube 2PTFE Corrugated Tube 3
Product Types

Classification of PTFE Tubes

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Small-Bore Corrugated Tube (3–10mm ID)
Primarily used for instrument connections, sample lines, sensor protection, and fine chemical dosing. Highly flexible — can form tight loops in confined instrument cabinets.
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Medium-Bore Corrugated Tube (10–25mm ID)
The most common range for process piping flexibility applications — pump connections, expansion joints, and hose replacement in chemical plants and pharmaceutical facilities.
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Large-Bore Corrugated Tube (25mm+ ID)
Used in high-volume chemical transfer, pipe expansion joints, and aggressive-media fume extraction. Can substitute metal bellows expansion joints in corrosive environments.
Industries Served
Chemical ProcessingPharmaceuticalSemiconductorFood & BeverageOil & GasLaboratoryAutomotiveInstrumentationMedicalPower Generation
Key Properties

PTFE Corrugated Tube: Unique Characteristics

Extreme Flexibility
Accordion corrugation allows a 40–60% tighter minimum bend radius compared to smooth-bore PTFE tube of the same bore diameter — no kinking, no collapse.
Full PTFE Temperature Range
Continuous service from −200°C to +260°C. Same temperature performance as smooth natural PTFE — the corrugation adds flexibility without affecting thermal properties.
Universal Chemical Resistance
Virgin PTFE inner bore — resistant to virtually all acids, alkalis, solvents, and aggressive chemicals. Suitable for concentrated nitric acid, aqua regia, and caustics.
Vibration & Movement Absorption
Corrugated geometry absorbs axial compression, lateral deflection, and angular misalignment — ideal as a flexible element on pump inlets and compressor connections.
No Braid — No Contamination Risk
Pure PTFE tube with no metallic overbraid or textile sleeve. Suitable for high-purity applications where metallic particles or fibre migration would be a concern.
FDA & High-Purity Compliant
Virgin PTFE meets FDA 21 CFR 177.1550. No plasticisers, extractables, or binders — safe for food, pharmaceutical, and medical fluid contact.
Self-Supporting Profile
The corrugated profile gives the tube a degree of rigidity in the radial direction while remaining flexible axially — it holds its shape when not under load.
Where It's Used

Applications

✓Pump inlet and outlet flexible connections — vibration isolation
✓Expansion joints for thermal movement in chemical piping
✓Tight-radius routing through instrument panels and enclosures
✓Flexible gas and vapour sampling lines in analytical instruments
✓Pharmaceutical process piping — CIP/SIP compatible flexible sections
✓Semiconductor chemical delivery — aggressive acid and solvent lines
✓Food and beverage — flexible food-grade connections
✓Laboratory fume and vent flexible connections
✓Replacement for metal bellows in highly corrosive environments
✓Flexible protection conduit for fragile tubing or cable
Technical Datasheet
Full specifications, tolerances & material properties — sent directly to your email.
Quick Enquiry
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