Page 106 - Estimator's Piping Man-Hour Manual 5E

Section Two-FIELD FABRICATION 89

ATTACHING FLANGES—WELD NECK TYPE

Labor—Aligning Flange and Butt Welding
Carbon Steel Material
NET MAN HOURS EACH
SERVICE PRESSURE RATING
Size
Ins. 150 Lb. 300 Lb. 400 Lb. 600 Lb. 900 Lb. 1500 Lb. 2500 Lb.
1.5 1.8 1.8 2.6 2.6 2.8 3.0
2 11' 2.0 2.3 2.3 3,4 3.4 3.6 4.2
:i 2.5 2.8 2.8 4.1 4.1 4.3 4.5

4 3.2 3.5 3.5 5.0 5.0 5.6 5.8
») 4.2 4.7 4.7 6.7 6.7 7.4 7.6
8 5.4 6.0 6.0 8.6 8.6 9.8 10.2
1» 6.7 7.3 7.3 10.1 10.1 11.6 11.8
12 7.3 7.9 7.9 10.5 10.5 12.3 13.3
14 OD 8.8 9.5 9.5 11.9 11.9 14.3 ._
If! OD 9.6 10.2 10.2 12.3 12.3 16.1
18 OD 12.0 12.7 12.7 15.4 15.4 18.3

20 OD 13.3 14.0 14.0 16.9 16.9 21.6 _
24 OD 17.6 18.5 18.5 22.4 22.4 28,7 _
26 OD _ - 20.5 23.2 23.2 _ -
30 OD - - 24.8 26.7 26.7 - ._
_
34 OD - 30.8 32.8 32.8 _
_
36 OD - 34.5 36.5 36.5 _.
42 OD _ 49.8 52.1 - _

Man hours include aligning, tack, and butt welding carbon steel weld neck flange to pipe.
Man hours are for any wall thickness of pipe used with listed flanges.
Unlisted sizes take the next highest listing.