Electrical Conduit Pipe IMC
Intermediate Metal Conduit
IMC was developed in the 1970s as a thin-wall alternative to rigid metal conduit (RMC) that weighs about one-third less. IMC ships with either a straight-tapped or integral coupling. It features a galvanized OD and corrosion-resistant ID coating.
Applicable Tolerance:
Wall Thickness: +0.015”(+0.4 mm) or -0.000” (-0.0mm)
There is no specific wall thickness or tolerance for rigid conduits
The only specification available are those in the National pipe standard specifications for Steel Pipe (A-120)
Length:±1/4 in (6.4mm)
Standard: UL1242
Finishes: Hot-dip Galvanized, Zinc Plated, Pre-galvanized
Ends of pipe: One side threaded with coupling, one side with plastic cap
Minimum quantity or order: 10Mt
Loading Port: Tianjin Xingang Port, China
Package:
1.Big OD: in bulk;
2.Small OD: in bundles, packed by steel strips;
3.Waterproof package with plastic cloth;
4.Standard export package;
.5.According to customers’ requirements.
|
Size |
Outside Diameter |
Inside Diameter |
Wall Thickness |
Length |
||||
|
inch |
inch |
mm |
inch |
mm |
(1)mm |
(2)mm |
feet |
mm |
|
1/2” |
0.815 |
20.70 |
1.660 |
16.76 |
1.98 |
1.79 |
10 |
3050 |
|
3/4” |
1.029 |
26.10 |
0.869 |
22.07 |
2.10 |
1.90 |
10 |
3050 |
|
1” |
1.290 |
32.80 |
1.105 |
28.07 |
2.35 |
2.15 |
10 |
3050 |
|
1-1/4” |
1.638 |
41.60 |
1.448 |
36.77 |
2.42 |
2.16 |
10 |
3050 |
|
1-1/2” |
1.883 |
47.80 |
1.683 |
42.74 |
2.54 |
2.29 |
10 |
3050 |
|
2” |
2.360 |
59.90 |
2.150 |
54.60 |
2.67 |
2.41 |
10 |
3050 |
|
2-1/2” |
2.857 |
72.60 |
2.557 |
64.95 |
3.56 |
- |
10 |
3050 |
|
3” |
3.476 |
88.30 |
3.176 |
80.67 |
3.56 |
- |
10 |
3050 |
|
3-1/2” |
3.971 |
100.90 |
3.671 |
93.24 |
3.56 |
- |
10 |
3050 |
|
4” |
4.466 |
113.40 |
4.166 |
105.82 |
3.56 |
- |
10 |
3050 |
IMC Sizing
IMC is available in trade sizes 1/2 through 4, and 10′ lengths. Threads on the uncoupled end are covered by industry color-coded thread protectors to protect the threads, keep them clean and sharp, and aid in trade size recognition.
Using IMC as a Substitute for RMC
IMC is interchangeable with galvanized RMC. Both have threads with a 3/4-inch-per-foot taper, use the same couplings and fittings, have the same support requirements and are permitted to be used in the same locations.
