Conduit Liquid Tight

Types of Flexible Conduit

Non-Metallic Flexible Conduit: Made from flexible plastic materials such as PVC or polypropylene, non-metallic conduits are lightweight and corrosion-resistant. They are suitable for environments where moisture or chemical exposure is a concern. These conduits are often used in residential applications and in situations where there is minimal risk of heavy mechanical stress.

 

Liquid-Tight Flexible Conduit: Combining the flexibility of metallic conduits with a water-tight outer coating, this type is designed to withstand harsh conditions such as exposure to water, oil, and other liquids. It is commonly used in outdoor installations, or areas exposed to the elements, and in machinery where liquid exposure is frequent.

 

Construction and Material

The liquid-tight conduit is typically made of high-quality materials that ensure its resistance to corrosion, impact, and abrasion. Most commonly, the conduit is made from a combination of galvanized steel or aluminum coated with a flexible, water-resistant plastic jacket, often made of PVC (Polyvinyl Chloride). This unique construction allows the conduit to withstand harsh external conditions while providing robust mechanical protection for the cables inside.

 

The inner core of the conduit is usually formed from metal, such as steel, which provides high tensile strength and rigidity. The outer sheath is made from a UV-resistant, flame-retardant plastic that protects the conduit from weathering, moisture, oil, and other chemicals. This dual-layer structure ensures both flexibility and strength, allowing the conduit to be installed easily while withstanding external stress.

 

Material:	High Grade Imported PA6
Color:	Black, Dark Grey, Other colors can be customized
Temperature Range:	-40℃ to 125℃
Protection degree:	IP68
Flammability Rating:	UL94V-0 or UL94HB
OEM/ODM:	Customization Service Provided
Certification:	SGS CE ROHS
Features:	PA flexible conduit flexible and ductile, Medium-duty, Twist-reisistance,high mechanical Strength, Chemical resistance to Oil,alkalies,weak acids and so on. Resistance to abrasion and UV. Free from Halogen and Phosphorus.
How to use:	PA flexible conduit for applications in machinery building,electrical control system,installation industries and so on. Installation Instruction: Insert the wire cable into the conduits, then connect the conduits with matching size connector.
Bearing capacity:	PA flexible conduit can bear the weight of foot, no fracture, no deformation, can quickly recover, and itself without any damage,with self-extinguishing and high anti-fatigue strength characteristics, resistance to frequent bending movement.

 

Item No.	Item No.	Conduit Size	Inner dia x outer dia (mm)	Packing unit(meter)
black	grey
GD-PAH-10B	GD-PAH-10G	AD10	6.5x10	100
GD-PAH-13B	GD-PAH-13G	AD13	10x13	100
GD-PAH-15.8B	GD-PAH-15.8G	AD15.8	12x15.8	100
GD-PAH-18.5B	GD-PAH-18.5G	AD18.5	14.3x18.5	100
GD-PAH-21.2B	GD-PAH-21.2G	AD21.2	17x21.2	100
GD-PAH-25.5B	GD-PAH-25.5G	AD25.5	21x25.5	50
GD-PAH-28.5B	GD-PAH-28.5G	AD28.5	23x28.5	50
GD-PAH-34.5B	GD-PAH-34.5G	AD34.5	29x34.5	50
GD-PAH-42.5B	GD-PAH-42.5G	AD42.5	36x42.5	25
GD-PAH-54.5B	GD-PAH-54.5G	AD54.5	48x54.5	25

 

 

 

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1. What are the primary materials used in non-metallic flexible conduits?
Non-metallic flexible conduits are typically made from lightweight plastic materials such as PVC (Polyvinyl Chloride) or polypropylene. These materials make the conduits corrosion-resistant and flexible, allowing them to be used in environments where moisture or chemical exposure is a concern, such as residential applications or areas with minimal mechanical stress.

 

2. How does liquid-tight flexible conduit differ from standard flexible conduit?
Liquid-tight flexible conduit combines the flexibility of standard metallic conduits with a water-resistant outer coating, usually made of PVC. This design allows it to withstand exposure to water, oil, and other liquids, making it ideal for outdoor installations or areas where machinery is frequently exposed to liquids. It offers additional protection compared to standard conduits, especially in harsh conditions.

 

3. What makes the construction of liquid-tight flexible conduit highly durable?
Liquid-tight flexible conduits are built with an inner core of galvanized steel or aluminum for tensile strength and rigidity, combined with an outer sheath made of UV-resistant and flame-retardant PVC. This dual-layer construction protects the conduit from external elements like moisture, oil, chemicals, and mechanical wear, ensuring durability in both industrial and outdoor applications.

 

4. What are some common applications for non-metallic flexible conduits?
Non-metallic flexible conduits are commonly used in residential wiring, where there is less exposure to mechanical stress and more concern over moisture or chemical exposure. Their lightweight, corrosion-resistant design makes them ideal for indoor installations, especially in walls, ceilings, or spaces where flexibility is needed without the risk of heavy physical damage.

 

5. In what types of environments is liquid-tight flexible conduit most suitable?
Liquid-tight flexible conduits are best suited for environments where there is frequent exposure to water, oil, or other liquids, such as in outdoor installations, industrial machinery, or marine environments. The water-tight design, coupled with robust materials, ensures the conduit can handle harsh environmental conditions while maintaining protection for internal cables.

 

6. What role does the UV-resistant outer sheath play in liquid-tight conduits?
The UV-resistant outer sheath of liquid-tight flexible conduit protects the material from degradation caused by long-term exposure to sunlight. This feature is crucial for outdoor installations, as it ensures the conduit retains its structural integrity and effectiveness in protecting internal cables, even when subjected to direct UV exposure for extended periods.

 

7. Why is galvanized steel or aluminum used in the inner core of liquid-tight flexible conduits?
Galvanized steel or aluminum is used in the inner core of liquid-tight flexible conduits due to its high tensile strength and rigidity. This material provides mechanical protection and helps the conduit withstand external forces such as impact or bending while maintaining flexibility. It ensures that the conduit can protect cables effectively, even in environments with significant mechanical stress.

 

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