Page 102 - Estimator's Piping Man-Hour Manual 5E
P. 102
Section Two~FIELD FABRICATION 85
ATTACHING FLANGES - SCREWED TYPE
Man hours — Cutting and Threading Pipe — Making on Screwed Flanges and Refaclng
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 1.2 1.4
2-1/2 1.3 1.5
3 1.4 1.6
3-1/2 1.6 1.8
4 1.7 2.0
5 1.8 2.2
6 2.1 2.3
8 2.5 2.8
10 3.1 3.4
12 3.7 4.1
14 OD 4.5 5.1
16 OD 5.4 6.1
18 OD 6.5 7.3
20 OD 7.7 8.7
24 OD 11.0 12.5
Flanges: Man hours are for field 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 flanges.
Unlisted Sizes, Unlisted sizes take the next higher listing.
