Page 71 - Estimators Piping Man Hour Manual

54 Section One-SHOP FABRICATION

INSTALLING FLOW NOZZLES
Holding Ring Type

Carbon Steel and Alloy Materials

NET MAN HOURS EACH
Pipe Flow Nozzles Pipe Flow Nozzles
Size Carbon O.D. Carbon
Inches Steel Alloy Inches Steel Alloy
4 32.9 38.4 26 140.3 168.4
5 35.7 41.4 28 160.7 188.1
6 39.8 46,1 30 184.2 211.8
8 46.8 53.0 32 210.6 239.2

10 53.4 61.6 34 240.4 268.0
12 60.2 70.0 36 270.4 302.9
14 O.D. 65.8 77.3 38 303.0 342.4
16O.D. 74.2 87.6 40 339.4 386.9
18 O.D. 83.7 99.3 42 380.1 467.3
20 O.D. 94.1 113.3 -- „ ..
24O.D. 118.9 144.7 ..

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.