Flexible Conduits

Product Details:

Flexible conduit pipes are essential components in electrical installations, providing protection and routing for electrical wiring in situations where flexibility is required. They are particularly useful in areas subject to vibration, movement, or where complex routing is necessary.

Types of Flexible Conduit Pipes:

1. Flexible Metal Conduit (FMC):

   • Construction: Made from helically coiled self-interlocked aluminum or steel strips, forming a flexible, hollow tube.
   • Applications: Ideal for dry indoor locations where flexibility is needed to navigate bends and obstacles.
   • Standards: Conforms to UL standard ANSI/UL-1 for flexible metal conduit. citeturn0search0

2. Liquidtight Flexible Metal Conduit (LFMC):

   • Construction: Similar to FMC but with an additional plastic coating, providing a watertight seal.
   • Applications: Suitable for areas exposed to moisture, such as outdoor installations or locations prone to water exposure.
   • Standards: Meets federal specification WW-C-566c type III6. citeturn0search0

3. Liquidtight Flexible Nonmetallic Conduit (LFNC):

   • Construction: Made from flame-resistant non-metallic materials, often PVC, offering flexibility and corrosion resistance.
   • Applications: Used in environments where corrosion is a concern and a non-metallic conduit is preferred.
   • Standards: Conforms to Article 356 of the National Electrical Code (ANSI/NFPA70). citeturn0search1

Key Specifications:

• Size Range: Available in nominal sizes from 3mm up to 75mm, accommodating various cable capacities. citeturn0search9

• Temperature Ratings:

  • LFNC: Operating temperatures typically range from 14°F to 140°F (-10°C to 60°C). citeturn0search1
  • LFMC: Can operate in temperatures from -4°F to 221°F (-20°C to 105°C).

• Bend Radius: The minimum bend radius varies by size and type; for instance, a 3/4 inch (21mm) LFMC typically has a bend radius of approximately 5 inches (127mm). citeturn0search7

• Compliance and Approvals: Many flexible conduits meet industry standards such as UL listings, CSA certifications, and IP ratings, ensuring suitability for specific applications.

Applications:

• HVAC Equipment: Connecting units where vibration isolation is necessary.
• Machine Tools: Routing wiring to accommodate moving parts.
• Outdoor Lighting: Protecting electrical connections exposed to the elements.
• Marine Equipment: Providing corrosion-resistant pathways for wiring in marine environments.

When selecting a flexible conduit, consider factors such as environmental conditions, mechanical protection requirements, and compliance with local electrical codes to ensure safety and longevity of the installation.