PTFE Extruded /Molded Tube/Filled PTFE TUBE

Ⅰ、Features

Teflon extruded pipe and molded pipe using polytetrafluoroethylene suspension polymerization process. In the known plastic polytetrafluoroethylene has good chemical resistance and dielectric properties.

Ⅱ、Types and Specifications:

Ⅲ、Main Properties

Ⅳ、Applications

  Transmission of corrosive liquids or gases such as hydraulic fluid and fuel in the aerospace industry; high pressure air, fuel and hydraulic transmission in the automotive industry; delivery of chlorine, steam, acid-base organic compounds, etc. in the chemical industry; Purity fluid delivery. As PTFE has the best plastic in the high temperature, low corrosion, anti-aging, high insulation and non-stick advantages.

PTFE Bellows Product Introduction

PTFE bellows are flexible piping products manufactured primarily from polytetrafluoroethylene (PTFE) through specialized processing techniques. Their unique corrugated structure design combines the excellent chemical stability of PTFE material with outstanding mechanical flexibility, making them critical functional components in industrial applications.

Core Advantages

· Exceptional Chemical Inertia: Resists most highly corrosive media, including aqua regia and hydrofluoric acid

· Broad Temperature Performance: Maintains stable performance from -200°C to +260°C, with instantaneous temperature resistance up to 300°C

· Excellent Physical Properties: Friction coefficient as low as 0.04, surface energy only 18.5 mN/m, providing superior non-stick characteristics

· Flexible Structural Design: Corrugated construction offers excellent expansion compensation capability (axial compensation up to 1/3 tube length)

Typical Applications

· Chemical Industry: Acid-base transfer systems, reactor exhaust pipelines

· Electronics Industry: Process piping for semiconductor wet processing equipment

· Energy Equipment: Fuel cell gas transfer pipelines

· Medical Devices: Endoscope instrument drive sheaths

Technical Advancements

Newly developed nano-modified PTFE bellows, incorporating carbon nanotube reinforcement systems, increase product tensile strength by 300% and burst pressure to 2.5 MPa, while maintaining original chemical stability. Some high-end models have achieved customized development of conductive/anti-static functions.

The product strictly complies with ISO 10993 medical device biocompatibility standards and has passed FDA 21 CFR 177.1550 certification, meeting compliance requirements across different industries.

Key Parameter Table

Category	Parameter/Characteristic	Description
Base Material	PTFE or Modified PTFE	Can add glass fiber, carbon fiber, etc.
Temperature Range	-200°C ~ +260°C (short-term 300°C)	No embrittlement at low temp, no decomposition at high temp
Pressure Rating	0.1~0.3 MPa (Standard) ≥1.0 MPa (Reinforced)	Reinforced type uses metal mesh or fiber lining
Corrosion Resistance	Resists strong acids, bases, organic solvents	Not suitable for molten alkali metals, fluorine gas, etc.
Bellows Structure	U-type, V-type, Ω-type	Customizable corrugation count & height (e.g., 4~20)
Diameter Range	DN6 ~ DN200	Special sizes customizable
Color	White (Standard), Black (Conductive Modified)	Black version contains carbon powder, anti-static
Certification Standards	FDA, USP Class VI (Medical/Food Grade)	Complies with SEMI F57 for semiconductor industry

Application Scenario Comparison Table

Industry	Typical Applications	Special Requirements	Recommended Type
Chemical	Corrosive fluid transfer, reactor piping	Pressure resistance, temperature fluctuation tolerance	Reinforced (Metal Mesh Lined)
Semiconductor	High-purity chemical transfer, CMP equipment	Ultra-low extractables, no metal ion contamination	High Purity PTFE + PFA Composite
Medical	Pharmaceutical tubing, surgical equipment connections	Biocompatibility, sterilization tolerance	FDA Certified Medical Grade
Food	Beverage/dairy transfer pipelines	Non-toxic, easy to clean	White Smooth Inner Wall
Aerospace	Fuel systems, hydraulic pipelines	Lightweight, cryogenic resistance (< -100°C）	Thin-Wall Reinforced Type

Selection Reference Table

Requirement	Suitable Type	Example Model Reference
Low-pressure transfer of conventional corrosive media	Single-layer PTFE Bellows	PTFE-BW-15 (DN15)
High-pressure/Vibration environments	Stainless Steel Wire Reinforced Bellows	PTFE-SS-25 (DN25)
Ultra-high purity chemicals	Electropolished Inner Wall + PFA Liner	PTFE-EP-10 (DN10)
Anti-static requirements	Carbon Powder Filled Conductive Bellows	PTFE-CB-50 (DN50)
Frequent bending scenarios	High Flexibility Modified PTFE (Pitch ≤5mm)	PTFE-FL-8 (DN8)

Material Safety Certifications

Standard System	Certification Content	Applicable Fields
FDA 21 CFR 177.1550	FDA safety certification  for PTFE materials	Food Contact, Medical Devices
EU 10/2011	EU Food Contact Materials Regulation	Food Processing Equipment
USP Class VI	USP Biological Reactivity Tests for Plastics	Pharmaceuticals, Medical Implants

Industry-Specific Certifications

Standard Number	Certification Requirements	Application Industry
SEMI F57	Cleanliness standard for PTFE components in semiconductor equipment	Semiconductor Manufacturing
ISO 10993	Series of biocompatibility testing standards for medical devices	Medical Implant Devices
DIN EN 1337-9	European standard for seismic compensators in construction	Chemical Piping Systems

Material Innovation Technologies

Structural Innovation Designs

Design Type	Technical Features	Technical Features	Typical Products
Multi-layer Composite Bellows Structure	Inner PFA + Middle PTFE + Outer Reinforcing Fiber	Pressure Resistance 2.5 MPa Permeability Reduced 90%	Ultra-high Purity Chemical Delivery Systems
Smart Deformation Bellows Structure	Shape Memory Alloy Wire Braid Reinforcement	Temperature Adaptive Deformation Compensation Efficiency Improved 70%	Aerospace Thermal Management Systems
Miniature Integrated Bellows Unit	3D Printed Sub-mm Bellows Structure (Accuracy ±0.01mm)	Enables Complex Flow Path Design Volume Reduced 80%	Microfluidic Chips Artificial Vascular Stents

Manufacturing Process Breakthroughs

· Laser-Assisted Forming Technology:

  Uses CO₂ lasers for precise corrugation forming (processing speed increased 5x, wall thickness deviation < ±0.05mm)

· Plasma Surface Treatment:

  Employs Ar/O₂ plasma etching (surface energy increased to 50 mN/m) to achieve reliable bonding with metals/plastics

· Continuous Extrusion Winding Process:

  Enables integrated molding of ultra-long (>50m) bellows, eliminating defects from traditional segment welding