Page 137 - Estimators Piping Man Hour Manual
P. 137
120 Section Two-FIELD FABRICATION
INSTALLING FLOW NOZZLES
Holding Ring Type
Carbon Steel and Alloy Materials
NET MAN HOURS EACH
FLOW NOZZLES FLOW NOZZLES
Pipe Pipe
Size Carbon O.D. Carbon
Inches Steel Alloy Inches Steel Alloy
4 37.8 44.2 26 165.6 198.7
5 41.1 47.3 28 189.6 222.0
6 45.8 53.0 30 217.4 249.9
8 55.2 62.5 32 248.5 282.3
10 63.0 72.7 34 283.7 316.2
12 71.0 82.6 36 319.1 357.4
14O.D. 77.6 91.2 38 357.5 404,0
16O.D. 87.6 103.4 40 400.5 456.5
18O.D. 98.8 117.2 42 448.5 516.0
20O.D. 111.0 133.7 -- ..
240.D. 140.3 170.7 -- -- -
Man hours include internal machining and nozzle installation.
For installing welding type flow nozzles, add for the bevels, butt weld, butt weld preheat, and any other labor
operation or non-destructive testing operation required for the butt weld. See respective tables for these charges.