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  • Fluorine-Lined Straight Pipe
  • Fluorine-Lined Straight Pipe
  • Fluorine-Lined Straight Pipe
Fluorine-Lined Straight PipeFluorine-Lined Straight PipeFluorine-Lined Straight Pipe

Fluorine-Lined Straight Pipe

Applicable media: acids, alkalis, organic solvents, various corrosive media
Working pressure: -0.098MPa~+2.5MPa
Working temperature: -100~+180℃
Manufacturing standards: HG/T 21562-94
HG/T 4088-2009
Performance advantages: Resistant to strong acid and alkali, PH can reach 1-14.

Introduction to Fluorine-Lined Straight Pipes

Fluorine-Lined Straight Pipes represent a significant advancement in industrial piping solutions, specifically engineered for challenging environments that involve high temperatures and extreme negative pressures. These pipes leverage the exceptional properties of steel-lined PTFE, overcoming the traditional limitations associated with pressure resistance in fluorine-lined systems. Through years of research, development, and field testing, these pipes have been optimized for stable operation under harsh conditions, proving indispensable in distillation and other processes where high temperature and vacuum resistance are critical. This introduction marks a leap forward in the field of corrosion-resistant piping, offering industries a reliable solution for transporting aggressive chemical media.

Detailed Description

The construction of Fluorine-Lined Straight Pipes involves meticulous processes to ensure the highest integrity and performance of the piping system. The methods include:

Push-Through Technique: This involves welding steel parts and mechanically drawing a preformed PTFE liner into the steel pipe. This method ensures that the liner fits snugly against the steel, enhancing the pipe's structural integrity.

Molding Process: Adopting a "one-time molding" approach, high-quality PTFE powder is directly sintered onto the inner wall of the steel pipe. This process is particularly effective for creating seamless linings in large diameter pipes or fittings with complex shapes, such as tees and elbows, without any joints or welds. The resulting PTFE lining is about 10mm thick, offering substantial strength, durability, and a smooth finish.

Spraying Technique: For pipes requiring a thinner PTFE lining, a spraying process is employed. This involves applying layers of PTFE material onto the interior surface of the pipe, followed by heating to achieve the desired sealing and surface properties. This method is suited for pipes and fittings where a fully molded liner is not feasible.

Key Features

Versatile Chemical Resistance: Fluorine-Lined Straight Pipes are compatible with a broad spectrum of corrosive media, including various concentrations of acids, bases, strong oxidizers, and even aqua regia, making them versatile for diverse industrial applications.

High Durability: These pipes offer exceptional resistance to permeation by small molecule gases such as oxygen, carbon dioxide, chlorine, and hydrogen chloride, ensuring the purity and integrity of the conveyed media.

Smooth Surface: The PTFE lining provides a remarkably smooth surface with a low friction coefficient, facilitating optimal fluid flow and minimizing the risk of fouling or blockage within the pipe.

Extended Service Life: Designed for longevity, Fluorine-Lined Straight Pipes can operate reliably for more than a decade, even under high temperature and extreme negative pressure conditions, with minimal maintenance requirements.

Advantages Of Our Fluorine-Lined Straight Pipes

Broad Media Compatibility: Fluorine-Lined Straight Pipes excel in their ability to resist the corrosive effects of both strong acids and bases. This feature renders them exceptionally suitable for a wide array of industrial applications, including chemical processing, pharmaceuticals, and wastewater treatment, ensuring the safe transport of various corrosive media without degradation.

Leak Resistance: Meticulously engineered to prevent leaks, these pipes can withstand significant mechanical stress, making them a reliable component in systems exposed to high-pressure variances and aggressive chemicals. Their robust construction minimizes the risk of environmental contamination and process interruptions, thereby enhancing operational safety and efficiency.

Easy Installation and Maintenance: Designed with simplicity in mind, Fluorine-Lined Straight Pipes offer straightforward installation procedures that do not require specialized tools or extensive training. Their minimal maintenance requirements further ensure that systems remain operational with less downtime, reducing the overall cost of ownership.


Pipe Lengths:

Tight Liner Process: DN25–DN500, L≤4000mm.

Molding Process: DN25–DN150, L≤4000mm; DN200–DN600, L≤1000mm.

Spraying Process: DN200–DN350, L≤2000mm; DN400–DN2000, L≤4000mm.

Lining Thickness: Approximately 10mm, ensuring high strength and durability.

Fluorine lined straight pipe lining thickness

NO. Minimum lining thickness (mm) NO. Minimum lining thickness (mm)
DN25 2.0±0.3 DN125 3.0±0.3
DN32 2.5±0.3 DN150 3.0±0.3
DN40 3.0±0.3 DN200 4.0±0.3
DN50 3.0±0.3 DN250 5.0±0.3
DN65 3.0±0.3 DN300 5.0±0.3
DN80 3.0±0.3 DN350 6.0±0.3
DN100 3.0±0.3 DN400 6.0±0.3


To complement Fluorine-Lined Straight Pipes and provide a comprehensive piping solution, a variety of accessories are available:

Fittings, Elbows, and Flanges: These components are specifically designed to integrate seamlessly with the fluorine-lined piping, facilitating the construction of complex piping networks that require directional changes or branching.

Customized Solutions: Understanding that industrial applications can vary widely, custom fittings and accessories are available to meet specific process requirements, ensuring optimal compatibility and performance.

Application of Fluorine-Lined Straight Pipes

Fluorine-Lined Straight Pipes find extensive applications across a diverse range of industries, each benefiting from the pipes' exceptional chemical resistance, durability, and safety features. These industries include:

Chemical Processing: In environments dealing with aggressive chemicals, these pipes transport corrosive substances safely, maintaining the integrity of the manufacturing process and preventing contamination.

Pharmaceutical Manufacturing: Ensuring purity and preventing contamination is paramount. Fluorine-Lined Pipes provide a non-reactive conduit for sensitive materials, contributing to the high standards of cleanliness required.

Water Treatment: The pipes are utilized in the harsh conditions of water treatment facilities, handling chlorine and other treatment chemicals without degrading, thus ensuring the longevity of the water treatment infrastructure.

Semiconductor Fabrication: The semiconductor industry requires environments free from contamination. Fluorine-lined pipes are used to transport chemicals used in the etching and cleaning processes, safeguarding the purity of the materials.

FAQ for ISO TANK Containers

Frequently Asked Questions.png

1.How are Fluorine-Lined Straight Pipes installed?

Answer: Installation of fluorine-lined straight pipes should adhere to standard piping practices, ensuring that all components are correctly aligned and supported to prevent stress. Special attention should be given to the sealing at joints to maintain the integrity of the lining.

2.Are there limitations to the chemicals these pipes can handle?

Answer: While these pipes are designed to handle a broad range of corrosive substances, it’s important to consult with the manufacturer regarding specific chemicals. Certain extremely aggressive chemicals may require special lining materials or thicknesses.

3.What routine inspection and maintenance are recommended?

Answer: Regular inspections should focus on identifying signs of wear, corrosion, or damage to the lining. Maintenance involves cleaning the interior to prevent build-up and checking the integrity of the lining. Any repairs or replacements should be conducted promptly to prevent system failure.

4.How long do Fluorine-Lined Straight Pipes last?

Answer: With proper installation and maintenance, these pipes can last over a decade, even in demanding industrial environments. The longevity is significantly influenced by the operating conditions and the nature of the substances transported.

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