Page 31 - Estimator's Piping Man-Hour Manual 5E

14 Section One-SHOP FABRICATION

ATTACHING FLANGES—SCREWED TYPE

Labor—Cutting and Threading Pipe, Making on Flange,
Manual Seal Welding at Back and Front and Refacing
Carbon Steel Material,
Straight Pipe, Bends, Headers and Nozzles

NET MAN HOURS EACH
Pipe SERVICE PRESSURE RATING
Size
Inches 150Lb. 300 Lb. 400 Lb. 600 Lb. 900 Lb. ISOOLb. 2500 Lb.
2 or less 1.7 1.9 2.1 2.1 2.7 2.7 3.4
2% 1.9 2.1 2.3 2.3 2.9 2.9 3.7
3 2.1 2.3 2.5 2.5 3.2 3.2 4.0
3M­ 2.3 2.5 2.8 2.8 -- ...
4 2.5 2.8 3.1 3.3 3.7 4.2 4.6
5 2.9 3.2 3.6 3.9 4.2 4.8 5.3
6 3.4 3.8 4.4 4.6 5.1 5.6 6.1
8 4.1 4.7 5.5 5.6 6.2 6.9 7.6
10 5.3 5.8 6.2 6.8 7.5 8.3 9.3
12 6.0 6.8 7.4 7.9 8.5 9.2 10.0
14 OD 7.2 8.1 8.9 9.9 11.1 12.2
16 OD 9.0 9.9 10.9 12.1 13.6 15.0
18 OD 10.4 11.3 12.3 13.5 14.7 16.2

20 OD 11.6 12.7 13.8 15.2 16.6 18.1
24 OD 16.2 17.3 18.2 19-6 21.0 22.5 --

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