Page 64 - Industrial Process Plant Construction Estimating and Man Hour Analysis

Process piping Chapter 2 35

2.4.3 Welding—SOL, TOL, and WOL
Facility—Diesel power plant

Man-hours per SOL, TOL, and WOL
Wall thickness in inches
Pipe
00
00
size 0.375 or less 0.406 –0.500 00 0.562 –0.688 00 0.718 –0.938 00 1.031 –1.219 00
00
00
00
0.5 1.60 2.00 3.80 4.80 5.80
0.75 1.60 2.00 3.80 4.80 5.80
1 1.60 2.00 3.80 4.80 5.80
1.5 1.60 2.00 3.80 4.80 5.80
2 1.60 2.00 3.80 4.80 5.80
2.5 1.75 2.00 4.25 5.75 7.00
3 2.10 2.10 2.40 6.90 6.90
4 2.80 2.80 3.20 6.80 9.20
6 4.20 4.20 4.80 10.20 13.80
8 5.60 5.60 6.40 13.60 18.40
10 7.00 7.00 8.00 17.00 23.00
12 8.40 8.40 9.60 20.40 27.60
14 9.80 9.80 11.20 23.80 32.20
16 11.20 11.20 12.80 27.20 36.80
18 12.60 12.60 14.40 30.60 41.40
20 14.00 14.00 16.00 34.00 46.00
24 16.80 16.80 19.20 40.80 55.20
SOL, TOL, and WOL welds; two times BW (includes cut, prep, and fit up).
Wall thickness of the pipe used for weld determines man-hours that will apply.
PWHT butt welds greater than or equal to 0.750 .
00
Apply percentages for welding alloys and nonferrous welds.