Page 72 - Industrial Process Plant Construction Estimating and Man Hour Analysis

Process piping Chapter 2 43

2.5.4 Welding stub in
Facility—Solar power plant

Man-hour per stub in
Wall thickness in inches
Pipe
00
00
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
0.5 1.65 1.80 3.30 3.68 4.05
0.75 1.65 1.80 3.30 3.68 4.05
1 1.65 1.80 3.30 3.68 4.05
1.5 1.65 1.80 3.30 3.68 4.05
2 1.65 1.80 3.30 3.68 4.05
2.5 1.88 2.06 3.94 4.50 5.44
3 2.25 2.48 4.73 5.40 6.53
4 3.00 3.30 6.30 7.20 8.70
6 4.50 4.95 9.45 10.80 13.05
8 6.00 6.60 12.60 14.40 17.40
10 7.50 8.25 15.75 18.00 21.75
12 9.00 9.90 18.90 21.60 26.10
14 10.50 11.55 22.05 25.20 30.45
16 12.00 13.20 25.20 28.80 34.80
18 13.50 14.85 28.35 32.40 39.15
20 15.00 16.50 31.50 36.00 43.50
24 18.00 19.80 37.80 43.20 52.20
Stub in—1.5 times BW (includes cut, prep, and fit up).
Wall thickness of the pipe used for stub in determines man-hours that will apply.
Apply percentages for welding alloys and nonferrous welds.