Page 103 - Estimators Piping Man Hour Manual

86 Section Two-FIELD FABRICATION

ATTACHING FLANGES—SCREWED TYPE

Man Hours—Cutting and Threading Pipe, Making on Flange
Manual Seal Welding at Back and Front and Refacing
Welded or Seamless Carbon Steel Material, Straight Pipe,
Bends, Headers and Nozzles

NET MAN HOURS EACH
Pipe SERVICE PRESSURE RATING
Size
Inches 150 Lb. 300 Lb. 400 Lb. 600 Lb. 900 Lb. 1500 Lb, 2500 Lb.
2 or less 2.0 2.2 2.4 2.4 3.1 3.1 3,9
2-1/2 2.2 2.4 2.6 2.6 3.3 3.3 4.2
3 2.4 2.6 2.9 2.9 3.7 3.7 4.6
3-1/2 2.6 2.9 3.2 3.2 ... --

4 2.9 3.2 3.6 3.8 4.3 4.8 5.2
5 3.3 3.7 4.1 4.5 4.8 5.5 6.0
6 3.9 4.4 5.1 5.3 5.9 6.4 7.0
8 4.8 5.5 6.5 6.6 7.3 8.1 9.0
10 6.2 6.8 7.3 8.0 8.9 9.8 11.0
12 7.1 8.0 8.7 9.3 10.0 10.9 11.8
14 OD 8.5 9.6 10.1 11.7 13.1 14.4
16 OD 10.6 11.7 12.9 14.3 16,0 17.7
18 OD 12.3 13.3 14.5 15.9 17.3 19.1
20 OD 13.7 15.0 16.3 17.9 19.6 21.4 ..
24 OD 19.1 20.4 21.5 22.7 24.8 26.6

Flanges: Man hours are for labor only. The price of the welding materials and flange must be added in all cases,
Pipe Thickness: Man hours are for any wall thickness of pipe used with listed flanges.
Unlisted Sizes: Unlisted sizes take the next higher listing.