Page 121 - Estimators Piping Man Hour Manual

104 Section Two-FIELD FABRICATION

END CLOSURES—PRESSURE TYPE

Carbon Steel Material

NET MAN HOURS EACH
SCHEDULE NUMBERS
Nom. Standard Extra
Pipe Pipe Heavy Pipe XX Hy.
Size & OD Sizes & OD Sizes or
Ins. 3/8" Thick 1/2" Thick 40 60 80 100 120 140 160
1-1/2 0.9 1.0 0.9 0.9 .. 2.3
— — —
__
2 1.2 1.3 1.2 1.3 -- 3.S
2-1/2 1.3 1.5 1.3 1.5 — 4.3
—
3 1.5 1.8 1.5 -- 1.8 __ -- 4.5
3-1/2 1.8 2.1 1.6 2.1
4 1.8 2.4 1.8 _. 2.4 -- 5.6 8.0
—
5 2.3 2.9 2.3 .. 2.9 .. 7.5 .. 7,9
6 2.8 3.3 2.6 3.3 9.3 10.2
—
8 3.7 4.7 3.7 4.7 8.9 12.5 14.8 15.6
10 4.6 5.9 4.6 5.9 10.3 12.7 21.4 23.0 24.7
12 5.5 7.2 6.7 7.7 13.0 18.9 28.6 31.2 33.7

14 6.6 8.6 8.0 9.9 15.1 20.9 32.9 44.5 46.3
18 7.4 9.7 9.7 12.5 16.8 23.5 37.9 56.1 58.8
18 9.0 11.3 13.9 16.2 21.8 29.6 42.8 67.6 71.3
20 9,7 12.5 16.8 19.8 27.0 35.8 47.8 79.1
24 10.6 14.9 19.6 23.5 32.2 42.1 52.2 --
—
Pipe Thickness: Wall thickness of pipe determines the man hours that will apply. For double
strong pipe thickness use schedule 160 man hours.
Construction: End closures such as orange peel, saddle, or flat plate type.
Preheating; If specified or required by codes, add for this operation. See man hours for pre-
heating.
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.
All sizes of butt welds shown below the ruled lines are 3/4" or greater in wall thickness
and must be stress relieved, if the end closure involves a circumferential weld. Where
stress relieving is required, an extra charge should be made. See man hours for stress
relieving.
Unlisted Sizes: Unlisted sizes take the next higher listing.