Name: EMT Pipe (10 LF, Sizes 1/2" to 4")
Brand: USA.Supply Groups Inc.
Availability: InStock

EMT (Electrical Metallic Tubing) is a type of thin-walled metal conduit commonly used for electrical wiring systems. It provides protection for electrical cables, offering a durable, cost-effective solution for both indoor and outdoor applications. EMT pipes are lightweight, corrosion-resistant (especially when galvanized), and easy to install. The standard lengths for EMT pipes are typically 10 feet (10 LF), though you can find other lengths depending on the supplier.

Below is a size table for EMT pipes (10 LF), ranging from 1/2" to 4" in nominal diameter:

EMT Pipe Size Table (10 LF)

Nominal Size (Trade Size)	Outer Diameter (OD)	Wall Thickness	Inner Diameter (ID)	Weight per 10 LF	Common Use
1/2"	0.840" (21.3 mm)	0.040" (1.02 mm)	0.762" (19.4 mm)	1.03 lbs (0.47 kg)	Electrical wiring in residential & commercial buildings
3/4"	1.050" (26.7 mm)	0.040" (1.02 mm)	0.910" (23.1 mm)	1.43 lbs (0.65 kg)	Electrical conduit in industrial & residential settings
1"	1.315" (33.4 mm)	0.040" (1.02 mm)	1.235" (31.4 mm)	1.80 lbs (0.82 kg)	Common in power distribution and industrial wiring
1-1/4"	1.660" (42.2 mm)	0.050" (1.27 mm)	1.560" (39.6 mm)	2.56 lbs (1.16 kg)	Used in commercial and industrial applications
1-1/2"	1.900" (48.3 mm)	0.050" (1.27 mm)	1.800" (45.7 mm)	3.23 lbs (1.47 kg)	Used in power and lighting distribution systems
2"	2.375" (60.3 mm)	0.050" (1.27 mm)	2.275" (57.8 mm)	4.06 lbs (1.84 kg)	Used in heavy-duty industrial applications, commercial power
2-1/2"	2.875" (73.0 mm)	0.060" (1.52 mm)	2.755" (70.0 mm)	5.29 lbs (2.40 kg)	Large power distribution, industrial machinery
3"	3.500" (88.9 mm)	0.060" (1.52 mm)	3.380" (85.9 mm)	6.72 lbs (3.05 kg)	For large electrical circuits, industrial buildings
3-1/2"	4.000" (101.6 mm)	0.060" (1.52 mm)	3.880" (98.6 mm)	7.96 lbs (3.61 kg)	For industrial and commercial power distribution
4"	4.500" (114.3 mm)	0.070" (1.78 mm)	4.360" (110.2 mm)	9.35 lbs (4.24 kg)	Heavy-duty power distribution, large commercial and industrial applications

Key Dimensions:

Nominal Size (Trade Size): This refers to the trade size of the EMT pipe, which is the standard designation. The actual measurements (e.g., outer diameter, wall thickness) are slightly different than the nominal size.
Outer Diameter (OD): The outer diameter of the EMT pipe, which is the key measurement when determining compatibility with fittings, connectors, and other components in the system.
Wall Thickness: The thickness of the EMT pipe's walls. EMT pipes are thinner compared to other conduit types like rigid metal conduit (RMC) or intermediate metal conduit (IMC), making them lighter and easier to install.
Inner Diameter (ID): The inner diameter refers to the internal space inside the pipe that can house wires or cables.
Weight per 10 LF: The weight per 10 feet (10 LF) refers to the mass of the pipe at that length. This can help determine transportation or handling needs.

Key Features of EMT Pipes:

Material: EMT pipes are typically made from steel (often galvanized for corrosion resistance), making them durable and suitable for both indoor and outdoor applications.
Use Cases: EMT pipes are used to house and protect electrical wiring, primarily in residential, commercial, and industrial installations. They offer good protection against physical damage and are commonly used for branch circuits, control wiring, and power distribution.
Installation: EMT pipes are lightweight and can be easily bent without special tools, making them convenient for routing electrical cables. They are typically installed with set-screw connectors, couplings, or compression fittings.

Common Applications:

Residential Wiring: EMT pipes are commonly used in homes for wiring circuits, especially for lighting, outlets, and appliances.
Commercial Installations: EMT is often used for electrical distribution in commercial buildings, offices, and retail spaces.
Industrial Settings: EMT pipes are also used in factories and warehouses to protect power cables, lighting systems, and control circuits from damage.

Example Installations:

1/2" EMT Pipe: Used for low-current applications such as lighting circuits and outlets in residential or commercial buildings.
1" EMT Pipe: Common for general-purpose circuits and power distribution in commercial installations.
3" EMT Pipe: Used for larger power distribution systems in industrial environments or commercial buildings with higher electrical demands.

How to Install EMT Pipe:

Measure and Cut: Use a pipe cutter or a hacksaw to measure and cut the EMT pipe to the required length.
Bend (if needed): EMT is flexible, so use a conduit bender to create gentle curves for the pipe, following the layout requirements.
Install Fittings: Use appropriate connectors, couplings, and elbows to join sections of EMT pipe.
Secure: EMT pipes are usually secured with conduit straps or clamps at intervals specified by local electrical codes.
Wire Installation: Pull electrical wires through the EMT conduit, ensuring that they are properly secured and not subject to sharp edges or bends that could damage the insulation.

Code Compliance:

When installing EMT pipes, it’s essential to follow National Electrical Code (NEC) guidelines and local building codes. The maximum distance between mounting supports, minimum bend radius, and other installation practices should be considered for safety and reliability.

EMT Pipe (10 LF, Sizes 1/2" to 4")

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