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  • PTFE Lined Flame Arrestor
  • PTFE Lined Flame Arrestor
  • PTFE Lined Flame Arrestor
PTFE Lined Flame ArrestorPTFE Lined Flame ArrestorPTFE Lined Flame Arrestor

PTFE Lined Flame Arrestor

Easy Maintenance, Spares available on ex-stock basis.
Tests in accordance with ISO:16852, IS16485 (ISO:16852), IEC-60079-1& IS:11006
IIA1, IIA, IIB1, IIB2, IIB3, IIB, IIC gas explosion group approved
Solutions for highly corrosive atmospheres
Flow test conducted at Fluid Control Research Institute, Palakkad, India
Lesser Pressure Drop


Welcome to the cutting-edge world of PTFE Lined Flame Arrestors! These devices are a cornerstone of safety in various industrial settings, ingeniously designed to prevent the spread of flames through pipelines. By integrating these arrestors into your systems, you ensure a robust defense against potential fires and explosions, safeguarding both equipment and personnel. The role of these flame arrestors cannot be overstated; they are critical components that enhance the safety of industrial environments, making them indispensable in operations where volatile substances are handled.

Product Description

Delving deeper into the design and functionality of PTFE Lined Flame Arrestors reveals their unique ability to halt flame propagation. These devices work on two fundamental principles: heat transfer and the quenching wall effect. The heat transfer mechanism is pivotal, as one of the essential conditions for combustion is reaching a certain ignition temperature. PTFE Lined Flame Arrestors are expertly designed with numerous fine channels, through which flames are forced to pass. This structure significantly enlarges the contact area between the flame and the channel walls, enhancing heat dissipation. As a result, the temperature of the combustible substances drops below their ignition point, effectively stopping the flame in its tracks.

Moreover, the quenching wall effect comes into play when combustible gases or flames pass through the arrestor's narrow channels. The interaction between the radicals within the flame and the arrestor's walls leads to a reduction in free radicals necessary for combustion. As these radicals are neutralized upon contact with the walls, the flame is quenched, preventing its further propagation. This dual-action approach, leveraging both heat transfer and the quenching effect, ensures maximum efficacy in flame arrestation.

Crafted with a lining of Polytetrafluoroethylene (PTFE), these flame arrestors not only excel in flame suppression but also boast exceptional chemical resistance. This feature makes them particularly suitable for use in environments where corrosive substances are processed, offering unmatched reliability and durability in the most challenging conditions.

Key Features

Heat Transfer Mechanism

The heart of a PTFE Lined Flame Arrestor's functionality lies in its superior heat transfer mechanism. As flames attempt to pass through the arrestor, they are subjected to numerous small channels within the device. This design maximizes the surface area contact between the flame and the cooler channel walls. As a result, heat is rapidly drawn away from the flame, cooling it to below its ignition point. This swift and efficient heat transfer ensures that the flame cannot sustain itself, let alone propagate further through the pipeline. It's a brilliant example of how physics is harnessed to enhance safety in industrial operations.

Quenching Wall Effect

In addition to the heat transfer mechanism, PTFE Lined Flame Arrestors utilize the quenching wall effect to stop flames in their tracks. This effect occurs when the radicals within the flame - which are necessary for the combustion process to continue - come into contact with the arrestor's walls. These radicals are effectively neutralized upon collision with the walls, significantly reducing the likelihood of further flame propagation. This quenching action, combined with heat transfer, provides a robust barrier against fire spread, ensuring the flames are extinguished before they can pose a risk to the facility.

Advantages of Our PTFE Lined Flame Arrestor

Enhanced Safety

PTFE Lined Flame Arrestors play a pivotal role in enhancing operational safety across a wide range of industrial settings. By preventing the spread of flames through pipelines, these arrestors mitigate the risk of fires and explosions that could result in catastrophic damage to property and endanger lives. Their effectiveness in flame suppression significantly contributes to a safer working environment, allowing for peace of mind and continuity of operations even in industries that deal with highly flammable substances.

Chemical Resistance

One of the standout features of PTFE Lined Flame Arrestors is their exceptional chemical resistance, thanks to the PTFE lining. This resistance ensures that the arrestors can be used in environments where corrosive substances are processed, without the risk of degradation that could compromise their effectiveness. The PTFE lining not only extends the lifespan of the flame arrestors but also maintains their performance integrity, making them a reliable choice for a variety of applications, including those involving harsh chemicals.

In essence, the combination of effective heat transfer, quenching action, enhanced safety, and chemical resistance makes PTFE Lined Flame Arrestors a cornerstone of industrial safety. Their deployment reflects a commitment to safeguarding facilities and personnel from the hazards associated with fire and explosions, all the while ensuring compatibility with a broad spectrum of substances.


Our PTFE Lined Flame Arrestors are engineered to meet the highest standards of safety and efficiency. Here’s a glimpse into the technical world of these safety devices:

Material Properties: The core structure is constructed from durable metals chosen for their strength and compatibility with PTFE, ensuring a robust foundation. The interior is lined with high-grade Polytetrafluoroethylene (PTFE), renowned for its exceptional chemical resistance and stability under various conditions.

Operational Temperature Ranges: Designed to operate efficiently across a wide temperature spectrum, our flame arrestors can handle environments from -20°C up to 200°C, making them versatile for different industrial processes.

Pressure Limits: Optimized to function within a pressure range suitable for most industrial applications, typically from atmospheric pressure up to 10 bars, ensuring safety across various operational scenarios.

Dimensions for Different Models: Available in a range of sizes to suit various pipeline diameters, from 1 inch (25 mm) to 24 inches (600 mm), accommodating the needs of small to large-scale operations.

Accessories and Fittings

To complement our PTFE Lined Flame Arrestors, we offer a comprehensive selection of accessories and fittings, designed to ensure seamless integration into your existing systems:

Flanges: Available in standard sizes, our flanges facilitate easy mounting of flame arrestors to pipelines, ensuring a secure and leak-proof connection. Made from materials compatible with PTFE, they offer excellent durability and chemical resistance.

Gaskets: To ensure a tight seal between the flame arrestor and the pipeline, we provide high-quality gaskets designed to withstand the operational pressures and temperatures, further enhancing system integrity.

Mounting Brackets: For installations requiring additional support, our sturdy mounting brackets offer a reliable solution. They provide stability to the flame arrestor, ensuring optimal functionality even under dynamic conditions.


PTFE Lined Flame Arrestors are indispensable in a multitude of industrial applications, providing unparalleled protection against the propagation of flames in hazardous environments. Here's where they shine:

Chemical Processing: In facilities where chemicals are produced or processed, the risk of fire is omnipresent. Our flame arrestors ensure that any potential flame is contained, keeping critical operations safe and uninterrupted.

Oil and Gas: The extraction, refinement, and transportation of oil and gas involve highly flammable substances. PTFE Lined Flame Arrestors play a critical role in preventing fires and explosions, safeguarding both infrastructure and personnel.

Pharmaceuticals: Safety in pharmaceutical manufacturing is paramount, not just for the workers but also to ensure product integrity. Our flame arrestors are used to protect processes involving volatile or reactive chemicals.

Waste Management Systems: In the management and treatment of waste, especially chemical or organic waste, flame arrestors prevent the ignition of flammable gases, contributing to environmental safety and compliance with regulatory standards.

Frequently Asked Questions (FAQ)

Frequently Asked Questions.png

1.How do I install a PTFE Lined Flame Arrestor?

Answer: Installation should align with the manufacturer's guidelines. Generally, it involves securing the arrestor to the pipeline using the appropriate flanges and gaskets, ensuring a tight and secure fit. It's crucial to match the arrestor's direction with the flow of gas or vapor.

2.What are Flame Arrestors Made Of?

Answer: Flame arrestors are constructed from a variety of materials, tailored to the specific requirements of the environments they are designed to protect. Common materials include stainless steel, aluminum, and carbon steel for the body, chosen for their durability and resistance to pressure and heat. The core flame-quenching element, especially in PTFE Lined Flame Arrestors, features a lining of Polytetrafluoroethylene (PTFE) for exceptional chemical resistance. This combination ensures longevity, reliability, and effectiveness in preventing flame propagation in hazardous environments.

3.How Does an Inline Flame Arrestor Work?

Answer: An inline flame arrestor functions by forcing gas or vapor through narrow channels formed by a matrix of metal plates or a wire mesh. This design rapidly cools the gas, extinguishing the flame as it attempts to pass through these passages. The narrowness of the channels and the heat-conductive materials used in construction dissipate the heat from the flame, dropping the temperature below the ignition point of the gas or vapor mixture. This effectively stops the flame from propagating further along the pipeline, preventing fires and potential explosions.

4.What is the Purpose of PTFE Lining in Flame Arrestors?

Answer: The purpose of PTFE lining in flame arrestors is to provide exceptional chemical resistance, ensuring the arrestor's durability and longevity even in the most corrosive environments. PTFE, known for its inert properties, does not react with most chemicals, making it an ideal choice for applications involving corrosive gases or vapors. This lining ensures that the arrestor remains effective over time, without the risk of degradation that could compromise its ability to stop flame propagation. The use of PTFE lining in flame arrestors represents a significant advancement in enhancing their performance and reliability across various industrial applications.

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