Page 29 - Estimator's Piping Man-Hour Manual 5E
P. 29
12 Section One-SHOP FABRICATION
ATTACHING FLANGES—SCREWED TYPE
Labor—Cutting and Threading Pipe—Making on
Screwed Flanges and Re facing
Carbon Steel Material
For Bends, Headers, Necks and Straight Runs of Pipe
NET MAN HOURS EACH
Pipe 125 Lb. Cast Iron 250 Lb. Cast Iron
Size and and
Inches 150 Lb. Steel Steel 300 Lb. and Higher
2 or less 1. 0 ..... . 1.2
2-1/2 1. 1 ..... . 1.3
3 1.2 1.4
3-1/2 1.4 ..... . 1.6
4 1.5 1.7
•i 1. 6 ..... . 1.9
6 1 8 2.0
.
8 2 1 ..... 2.4
10 2.6 ...... ..... . 2. 9
1 2 .... 3. 1 3.5
14 OD 3.8 4. 3
16 OD .. . 46 5.2
18 OD 5 5 6. 2
.
20 OD . . . 6. 5 ..... 7. 4
2 4 O D ... . 9.3 10.6
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.
