Current Tools Omni 747 - SPRINGBACK CHARTS; Rigid Conduit Springback Data; EMT Conduit Springback Data; IMC Conduit Springback Data

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SPRINGBACK CHARTS
Chart A – RIGID Conduit/Schedule 40 Pipe
Conduit
Size
Deduct
Length
————————— Springback —————————
15˚ 30˚ 45˚ 60˚ 90˚
1/2"
7
1
⁄2"
18 34 49 65 95
3/4"
9
1
⁄4"
17 33 48 62 92
1" 11" 18 33 50 65 95
1
1
⁄4" 13
5
⁄8"
15 30 45 63 93
1
1
⁄2" 15
3
⁄8"
20 36 51 65 95
2"
16
7
⁄8"
18 33 49 66 94
Chart B – EMT Conduit
Conduit
Size
Deduct
Length
————————— Springback —————————
15˚ 30˚ 45˚ 60˚ 90˚
1/2"
7
1
⁄2"
19 34 49 65 96
3/4"
9
1
⁄4"
19 34 50 65 97
1" 11" 19 34 50 65 97
1
1
⁄4" 13
5
⁄8"
19 33 50 65 95
1
1
⁄2" 14
7
⁄8"
17 32 49 63 93
2"
16
1
⁄8"
17 33 48 64 95
Chart C – IMC Conduit
Conduit
Size
Deduct
Length
————————— Springback —————————
15˚ 30˚ 45˚ 60˚ 90˚
1/2"
7
1
⁄2"
22 38 54 69 100
3/4" 9 20 36 48 66 98
1" 11" 20 35 52 67 99
1
1
⁄4" 13
5
⁄8"
18 33 49 65 95
1
1
⁄2" 14
7
⁄8"
20 35 51 66 98
2"
16
1
⁄4"
19 35 51 66 97
NOTE: Springback figures are approximate.
Minimum Stub Length = Deduct Length plus 2"
Chart C1 – PVC Coated Rigid Conduit
Conduit
Size
Deduct
Length
————————— Springback —————————
15˚ 30˚ 45˚ 60˚ 90˚
1/2"
7
1
⁄2"
16 31 47 62 93
3/4" 9 15 31 46 62 93
1" 11" 16 32 47 63 94
1
1
⁄4" 13
5
⁄8"
15 30 46 61 92
1
1
⁄2" 14
7
⁄8"
18 33 49 64 95
2"
16
1
⁄8"
19 34 50 65 96