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Flexible Steel Conduit

Your Professional Flexible Steel Conduit Supplier

KALD INT'L INDUSTRY LIMITED is a professional manufacturer, specializing in researching and manufacturing electrical tubes and associated fittings, such as EMT, IMC, BS4568, BS31,strut channel ,flexible tubes and related couplings and connectors.

Professional Team
Our professional team collaborates and communicates effectively with each other, and is dedicated to delivering high quality results. We are capable of handling complex challenges and projects that require our specialized expertise and experience.

High Quality
Our products are manufactured or executed to a very high standard, using the finest materials and manufacturing processes.

Equipment Is Perfect
The company is equipped with a number of mature technology processing lines, can provide customers with a full range of product processing services.

Intimate After-Sales
We guarantee that the customer as the center, meets the needs of customers for their own responsibility, to ensure that the customer after-sales care.

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Parameter

Surface Treatment	Galvanised
Material	Stainless Steel
Outer/Nominal Diameter	5-110mm
Material Grade	Stainless Steel 304/316/316L/321/Galvanized Steel
Diameter	3-102 mm
Pressure	-10 to 100 Bar
Max Working Pressure	10 MPa
PVC Coated Od	6-112

Types of Flexible Steel Conduit

1. Flexible Metallic Conduit (FMC)
Flexible Metallic Conduit (FMC) offers improved static flexibility, which allows for tighter bends in hard-to-reach areas. Advantages include its durability, with metal construction providing robust protection, and its versatility, which makes it suitable for various indoor applications without needing liquidtight features.
Safety Considerations
Safety is a critical factor in electrical installations, and FMC provides several safety benefits, such as:
Fire Resistance: FMC’s lack of jacketing reduces the risk of producing smoke or fumes if a fire occurs.
Grounding Capabilities: FMC provides excellent grounding capabilities for maintaining electrical safety and preventing faults.

2. Liquidtight Flexible Non-Metallic Conduit (LNFC)
Liquidtight Flexible Non-Metallic Conduit (LNFC) offers superior protection against water, making it ideal for environments exposed to moisture. LNFC’s water-resistant properties are achieved through its construction and liquidtight fittings, which ensure the electrical wires remain protected from water ingress.
Material Composition
Manufacturers create LNFC using a combination of flexible PVC and rigid PVC materials, which offer several benefits:
Flexibility: The flexible PVC component allows LNFC to bend and adapt to various installation environments.
Durability: The rigid PVC component adds strength and durability, ensuring long-term protection for electrical wiring.
Water Resistance: The combination of materials ensures that LNFC is both flexible and capable of preventing water ingress.

3. Liquidtight Flexible Metal Conduit (LFMC)
Liquidtight Flexible Metal Conduit (LFMC) combines the flexibility of metal with liquidtight protection. Constructed with a hot-dip galvanized (HDG) steel core, it provides mechanical protection, and liquidtight fittings prevent moisture from entering the conduit.
LFMC strikes a balance between flexibility and protection. The minimum bend radius of LFMC is determined by trade size and UL or CSA requirements, ensuring that the conduit can be installed in various environments while maintaining its protective qualities.

4. Flexible Metallic Tubing (FMT)
Flexible Metallic Tubing (FMT) uses unique one-piece design fittings, making it suitable for smoke-tight applications in plenum spaces. Other key advantages of FMT include ease of handling due to its one-piece design, which simplifies installation, and its flexibility, which is similar to FMC and makes it easy to install in tight spaces.
FMT integrates well with existing electrical systems and fittings, making it a versatile choice for retrofitting projects and new installations.

Applications of Flexible Steel Conduit

Commercial and Industrial Wiring

Flexible steel conduit is commonly used in commercial and industrial settings, such as factories, warehouses, and office buildings, to protect wiring systems from physical damage and provide a conduit pathway for electrical wires.

Outdoor Installations

Flexible steel conduit is well-suited for outdoor applications, including outdoor lighting, signage, and equipment connections. Its durable construction helps protect electrical wiring from moisture, UV exposure, and other environmental factors.

Machinery and Equipment

Flexible steel conduit is often employed in machinery, equipment, and control systems where movement, vibration, or mechanical stress is present. It provides a flexible conduit solution that can withstand the rigors of industrial environments.

Retrofitting and Renovations

Flexible steel conduit is an excellent choice for retrofitting or renovating existing structures, as it can be easily bent and routed around obstacles or existing infrastructure. It allows for the installation of new wiring without the need for major modifications.

Tool for Cutting Flexible Steel Conduit

Handsaws

Handsaws are small, compact, and simple to control and also an effective cutting tool for flexible steel conduit. A blade with 18 to 32 teeth can be used. This prevents the blade from being entangled and splitting. When you use the handsaw, you may need to use a vise to keep the conduit in place. When you cut a flexible steel conduit, you need to put the blade in the handsaw in an upward direction.

Reamer

A reamer is an essential tool if you want to cut flexible steel conduit. The reamer's task is to get rid of any burrs that have formed within the pipe. After using a cutting flexible steel conduit pipe, you may need to swipe the reamer inside the conduit until the burrs are gone. After reaming, you can smooth out the edges with an industrial-quality file.

Powered Handsaw

For cutting rigid conduit, a driven handsaw is also compact and manageable, but it is heavier. When cutting a large amount of conduit or making several cuts, you can use a powered handsaw. This flexible steel conduit cutter will avoid fatigue and help you maintain a 90-degree angle between the blade and the pipe.

Pipe Cutter

When cutting conduit with a pipe cutter, less effort is needed, but more operation is required, and the pipe must be kept in an elevated vise. You may be careful that the blade should be lined up with the cutting line and tightened until it comes into contact with the pipe.

Steps For Cutting Flexible Steel Conduit

Measure Distance
Using a tape measure, measure the distance between the two points where the conduit will be routed. Account for the bends in the conduit. Remember to allow some at each end so it can be securely fastened in the box.

Place Conduit in Vice
If your vice has a slot in the center, align your cut mark on the conduit with the slot. If your vice does not have a slot, you can use a standard vice easily enough. Place the conduit so that the cut mark is off the end. This way you can easily cut it without any movement of the conduit.

Cut the Conduit
You can cut the conduit with a fine blade hacksaw. This is the preferable method, although it sounds basic. Always cut straight across. It may appear that you have a straight and even cut but it is a good idea to smooth out the cut before use.

Smooth Out the Edge
Use a small file and diagonal pliers to fix any defects, including an angled edge, on the cut end. You may also need to use a hacksaw to cut off any small bits that are left. You need to have the best possible edge for the most effective fitting, especially if used as grounding.

Clean Up
Clean up your work area thoroughly and safely.

Transport Packaging

Packaging Details: Ziplock bag + carton box
Delivery Detail: 25-30 days after order confirmed

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Our Factory

We have established stable business relations with different customers all over the world. Please feel free to contact us for more information. We look forward to receiving your correspondences in the near future.

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Our Certifications

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FAQ

Q: Can I join 2 pieces of flexible conduits together?

A: Yes you can! To join two pieces of flexible conduit together all you need to purchase is additional couplings and adapters.

Q: How far can you run flexible steel conduit?

A: One of these conditions requires that the total length of the ground path does not exceed 6 feet. However, this length limitation applies to the ground path, not the conduit. Where the length of the conduit exceeds 6 feet, an equipment grounding conductor must be used.

Q: Can flexible steel conduit be exposed?

A: Yes as long as the correct fittings, boxes and supports are used. Only rigid and intermediate metal conduit can be used underground however.

Q: What fittings to use with flexible conduit?

A: Straight: This allows conduit to be directly connected to the side of an enclosure.
45-degree: This allows wiring to take a slight bend when being connected between flexible conduit and an enclosure.

Q: How do you secure flexible steel conduit?

A: Secure the FMC: Use straps, clamps, or hangers to secure the FMC at regular intervals. Follow local building codes for spacing and support requirements.
Pull the wires: Pull the electrical wires through the FMC using proper techniques to avoid damaging the wires or the conduit.

Q: How do you run wire through flexible conduit?

A: Tie the string: Tie a strong string to a long, inflexible rod.
Push the rod: Push the rod through the conduit, tied end first.
Attach the wire: Tie the electrical wires to the string.
Pull the wire: Pull the rod and string through the conduit, pulling the wire along with them.

Q: How deep does flexible conduit need to be buried?

A: General rule: Most safety codes require burying conduit at a depth of 24 inches.
Under concrete or roadways: Conduit can be buried 18 inches deep.
Areas with heavy frost: Conduit may need to be buried as deep as 30 inches or more to avoid damage from frost heave.
Low-voltage wiring: Conduit only needs to be buried 6 inches deep for low-voltage systems (30 volts or less).
Galvanized metal electrical conduits: Must be buried at least 6 inches deep.

Kald Int'l Industry Limited is one of the leading China flexible steel conduit manufacturers and suppliers, and also a professional company and factory, welcome to buy low price and high-quality flexible steel conduit and wholesale our good products.

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