Page 114 - Estimators Piping Man Hour Manual

Section Two-FIELD FABRICATION 97

90° WELDED NOZZLES—REINFORCED
Labor for Cutting and Welding Carbon Steel Material

NET MAN HOURS EACH
Standard Extra
Pipe Heavy Pipe SCHEDULE NUMBERS
Size & OD Sizes & OD Sizes
Ins. 3/8" Thick 1/2 "Thick 20 30 40 60 80 100 120 140 160
1-1/2 5.0 5.4 - -- 5.0 -- 5.4 -- 7.7
2 5.3 5.9 ... — 5.3 .. 5.9 — .. .. 9.9
2-1/2 5.8 7.0 - - 5.8 -- 7.0 -- - - 10.8

3 6.7 7.9 .. ., 6,7 — 7.9 — .. „ 12.0
3-1/2 7.5 8.7 - -- 7.5 -- 8.7 -- -- --
4 8.1 10.0 -- - 8.1 - 10.0 - 12.5 15.3
5 9.8 11.8 - - 9.8 - 11.8 - 15.1 18.4
6 10.2 12.8 10.2 12.8 18.5 23.1
8 11.7 14.5 11.7 11.7 11.7 13.4 14.5 19.8 24.5 [29.3 32.8
10 12.7 16.3 12.7 12.7 12.7 16.3 20.2 26.0 31.0 34.8 39.1
12 14.2 18.3 14.2 14.2 15.3 20.3 26.3 1 35.5 39.5 44.6 47.7
14 OD 16.0 20.7 16.0 16.0 17.8 24.3 34.5 44.0 46.8 52.6 60,6

16 OD 17.9 23.2 17.9 17.9 22.8 30.1 40.1 54.8 57.5 60.6 70.0
18 OD 19.1 23.8 19.1 22.1 30.0 37.4 45.0 59.5 61.9 65,3 87.6
••••••Mil
20 OD 21.1 26.6 21.1 26.4 32.3 47.2 55.5 63.8 73.8 84.6 98.4
24 OD 22.3 27.7 22.3 30.3 36.5 52.5 59.5 72.4 85.7 99.0 115.0
, n
All Nozzles other than 90° should be charged at the man hours shown for 45" nozzles.
Pipe Thickness: Wall thickness of the pipe used for the nozzle determines the man hours that will apply. For
nozzles of double extra strong pipe thickness use schedule 160 man hours.
Reinforcement: Man hours given above include the labor requirements for reinforcement produced by building up
the nozzle weld, or by the use of reinforcing rings or saddles as may be specified.
Preheating: If specified or required by code, add for this operation. See man hours for preheating. The size and wall
thickness of header (not the size of the nozzle) determines the preheating man hours.
Stress Relieving: Stress relieving of welds in carbon steel material is required by the A.S.A. code for pressure
piping, where the wall thickness is 3/4" or greater. The size and wall thickness of the header determines the
man hours to be used for stress relieving. All pipe sizes shown below the ruled line are 3/4" or greater in
wall thickness and must be stress relieved. Where stress relieving is required an extra charge should be
made. See man hours for stress relieving.
For General Notes on welding, see page 92.