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What Is Liquid-Tight Flexible Conduit?

May. 07, 2024

Understanding Liquid-Tight Flexible Conduit


With a wide variety of flexible conduit systems available today, choosing the right one can be challenging. Options range from PVC spiral reinforced conduits to stainless steel conduits and liquid-tight metallic conduits.


Let's focus on liquid-tight flexible conduit: what it is, what it’s used for, and the benefits it offers.


What is a Liquid-Tight Flexible Conduit?


liquid-tight flexible conduit is a type of metallic conduit specifically designed to provide enhanced protection against corrosion and water infiltration. It is constructed from hot-dipped galvanized steel and coated in PVC, making it stronger and more resistant to damage than other flexible conduits. This durability ensures its reliability and longevity, making it a dependable choice for various applications.


What is liquid-tight flexible conduit used for?


Liquid-tight flexible conduit is used in exposed or concealed locations where flexibility and protection from liquids, vapours or solids is required. It’s also specified for hazardous locations, for example if you’re looking to install electrical cables in environments where leaks and floods frequently occur. They work well in residential areas to power water pumps and electrical appliances that are prone to vibrations and moisture, as well as commercial and industrial buildings.


Liquid-tight flexible conduit

What are the Benefits of Liquid-Tight Flexible Conduit?


The liquid-tight flexible conduit offers several benefits over other flexible conduit systems:


1. Exceptional Mechanical Strength: The D-series provides superior mechanical strength, making it ideal for applications where a secure connection is crucial.

2. Liquid Protection: These conduits offer excellent protection against most liquids, ensuring the safety and integrity of electrical connections.

3. Temperature Resistance: Suitable for low heat applications, they can withstand dry heat temperatures up to 80°C and damp heat temperatures up to 60°C.


These features make liquid-tight flexible conduits a reliable choice for various challenging environments.


Features of Liquid-Tight Flexible Conduit


Flexibility and Durability


Liquid-tight flexible conduit is highly flexible, allowing for easy installation even in tight or confined spaces. Despite its flexibility, it is also durable and resistant to damage, making it suitable for both indoor and outdoor applications.


Liquid-Tight Seal


As the name suggests, liquid-tight conduit provides a secure seal that prevents the ingress of moisture, water, oil, and other liquids. This feature ensures the protection of electrical cables and reduces the risk of short circuits or electrical malfunctions.


Corrosion Resistance


Many types of liquid-tight flexible conduit are designed to resist corrosion, making them suitable for use in harsh or corrosive environments. This corrosion resistance extends the lifespan of the conduit and helps maintain the integrity of the electrical system.




Liquid-tight flexible conduit is a versatile and reliable solution for protecting electrical cables from moisture, liquids, and environmental elements. Its flexibility, durability, and liquid-tight seal make it ideal for a wide range of applications in industrial, commercial, and outdoor settings. Whether used in industrial facilities, commercial buildings, or outdoor installations, liquid-tight flexible conduit provides enhanced safety, flexibility, and cost-effectiveness for electrical systems.


For more information on liquid-tight flexible conduit or to discuss your specific requirements, please contact us. As a trusted supplier, we offer a wide range of conduit solutions tailored to your needs.

Liquid-tight flexible conduit