ANAMET Electrical, Inc. has been manufacturing durable, liquid-tight, flexible electrical conduit systems since 1908. Our proprietary techniques and tooling enable our customers to safely connect and protect electrical wiring systems in the air, at sea, and on land. Our conduits are rigorously tested for various industrial, residential, and commercial applications.
Since 1949, we have produced Anaconda Sealtite® conduits listed for safe use according to Underwriters Laboratories (UL) standards. This patented conduit currently protects and connects optical fibers, cables, and electrical wiring worldwide.
ANAMET Electrical, Inc. is the world’s largest supplier and manufacturer of liquid-tight flexible metal conduits. Learn more about the different types and advantages of flexible electrical conduits.
What Is a Flexible Conduit?
An electrical conduit is a raceway with a circular cross-section that routes and protects electrical wiring in residential, industrial, and commercial applications. A flexible electrical conduit is a durable tube that protects electrical wiring in enclosed areas with hard turns, such as in water heaters or lighting fixtures. Materials used to manufacture conduits include metal, fiber, or plastic. Installed by electricians at the installation site, electrical conduit fittings and liquid-tight jackets protect the wiring from stress, strain, corrosion, heat, and moisture.
Conduits offer reliable protection to electrical wiring systems, creating a durable shield that prevents injury or equipment damage due to electric shock. Local building codes and the National Electrical Code (NEC) indicate where conduits should be used and determine the necessary material required for safe installation.
Reasons to Install Flexible Conduit Systems
Their flexible nature ensures functionality in even the most demanding environments. Here are some of the most common reasons to install flexible conduit systems:
- As pull outlets for installed conductors
- Connect sections of rigid conduit
- Connect junction boxes to electrical equipment
- Provide visible transitions and routing for critical circuits
- Connect to wired devices and lighting fixtures
- Provide access to conductors for maintenance and system upgrades
- Make 90° bends in conduit runs
Types of Flexible Electrical Conduit
Electrical conduits are classified by the materials used, wall thickness, tubing size, and mechanical stiffness. Corrosion resistance and cost are determining factors when selecting a conduit.
Here are the six main types of flexible electrical conduits on the market.
Flexible Metal Conduit (FMC)
Standard FMC is adaptable for dry indoor locations and often used for short runs. The spiral design lends extreme flexibility to areas with tight bends and limited space where more rigid conduits are not applicable.
Flexible Non-Metallic Conduit
Sealtite® non-metallic conduits consist of a continuous coil of PVC encased inside flexible PVC material that resists oil, heat, and chemical breakdowns. The non-conductive piping uses non-metallic or liquid-tight connectors for quick installation and is flame-retardant, durable, and UV-resistant.
Liquid-Tight Flexible Metal Conduit (LFMC)
A flexible liquid-tight metal conduit has a plastic waterproof coating and requires sealed threaded fittings for a watertight seal. Sizes range from ½” to 4” with typical applications that include wet indoor areas and outdoor settings such as air conditioner units.
Liquid-Tight Flexible Non-Metallic Conduit (LFNC)
Manufactured using PVC, an LFNC has a smooth interior and exterior surface and is resistant to oils and UV rays. Our Sealtite® LFNC is certified by UL standard 1660, compliant with RoHS requirements, and meets NEC code. The crush-resistant conduit is lightweight and can waterproof whole wiring systems requiring liquid-tight conduit fittings.
Electrical Metallic Tubing (EMT)
Manufactured using galvanized steel or aluminum, an EMT has thin, inflexible walls, requiring a conduit bender for manipulation. The lightweight material is not threaded, and installation demands couplings and watertight fittings with a setscrew or compression-style fasteners for a secure fit. EMT ranges from 1” to 1½” and is often used for indoor wiring in residential and light commercial applications.
Electrical Non-Metallic Tubing (ENT)
The corrugated plastic tubing is flexible and requires snap-lock or glued plastic fittings. ENT can be encased within concrete block structures, behind metal-frame walls, under floors, and in standard wood structures. ENT material is rated for two-hour fire resistance but does not have UV resistance properties, so it is preferred for indoor applications. Typical sizes are ½” to 2”.
Advantages & Benefits of Flexible Electrical Conduits
Flexible electrical conduits are the preferred choice for contractors in both residential and commercial applications. Some of the advantages of flexible conduits include:
- Protects conductors from moisture, corrosion, impact, and chemicals
- Long service life
- Easy installation
- Prevents accidental damage to wiring insulation
- Available in different sizes and types to accommodate any system design or conductor
- Easily modified
- Protects against explosions and fire in National Electrical Code Hazardous Locations
- Resistance to heat and cold for installation in low or high ambient temperature ranges
- Extremely flexible with tight bend radii
Flexible electrical conduits can be buried in concrete or underground. A metallic conduit creates an effective shield for protecting sensitive circuits against electromagnetic interference (EMI). Conduit jackets are resistant to radiation, oil, heat, and cold and are available in different colors.
Flexible Electrical Conduit From ANAMET Electrical, Inc.
Flexible electrical conduits are integral parts of any system operating under harsh conditions. Knowing the types of electrical conduits available, their benefits, and the reasons to install them, you can make a more informed decision for your application.
As a leading provider of flexible electrical conduits, ANAMET Electrical offers:
- Liquid-Tight Flexible Metal Conduits (UL listed and unlisted)
- Liquid-Tight Flexible Non-Metallic Conduits
- Flexible Conduit Fittings
- Specialty Conduits
Additional services are offered at our factory, allowing for greater customization for your flexible conduit systems. These services include:
- Custom jacket coloring
- Liquid-tight conduit jackets