Page 33 - Estimator's Piping Man-Hour Manual 5E

16 Section One-SHOP FABRICATION

ATTACHING FLANGES—SLIP-ON TYPE

Labor—Slipping on Flange and
Machine Welding at Front and Back

Carbon Steel Material

NET MAN HOURS EACH
SERVIC E PRESSURE RATING
Ins. 150 Lb. 300 Lb. 400 Lb. 600 Lb. 900 Lb. ISOOLb. 2500 Lb.
" r ~ ~
2 .66 .72 .96 .96 1.26 1.44 : 1.56
2-1/2 .78 .90 1.20 1.20 1.56 1.74 1.92
3 .96 1.08 1.50 1.50 1.86 2.10 2.34
4 1.26 1.38 1.80 1,98 2.52 2.82 3, ! 2
6 1.55 1.70 2.25 2.55 3.15 3.55 3.90

8 1.72 1.84 2.48 2.72 3.32 3.72 4.10
10 2.12 2.32 3.04 3.76 4.24 4.76 5.24
12 2.18 2.45 3.26 4.06 4.55 5.11 5.64
14 OD 2.28 2.55 3.30 4.11 4,80 5.88
16 OD 2.67 2.88 3.81 4.68 5.10 6.65
18OD 3.09 3.42 4.40 5.37 6.03 6.75
20 OD 3.72 4.08 5.37 6.03 6.99 7.83
24 OD 4.65 5.10 6.51 7.92 8.85 9.90

26 01) - - 7.05 8.58 9.59
30 01) _ - 8.14 9.90 11.06 _ -
34 01) - - 9.22 11.22 12.54 ­
_
:«; OD - - 9.76 11.88 13.28 ­
42 OD - - 11.39 13.86 - ­
Man hours include slipping-on carbon steel flange, tack welding and machine submerged arc. Welding both front
and back. For sizes 2" through 4" time is included for manual welding on front.
Man hours are for any wall thickness of pipe used with listed flange.
Above man hours should be used in lieu of manual welding slip-on flanged joints on all shop machine welded
slip-on flanges which can be rotated.
Unlisted sizes take the next highest listing.
For additional information see notes at bottom of preceding page.