Page 99 - Estimators Piping Man Hour Manual

82 Section Two-FIELD FABRICATION

MAKING ON SCREWED FITTINGS AND VALVES

NET MAN HOURS EACH

PER CONNECTION
Nom.
Size BACK
Inches PLAIN WELDED
1/4 . . . . . . . 0. 1 . . . . . . . . 0.4
3/8 0. 1 . . . . . . . . 0.4
1/2 O.I 0.4
3/4 0. 1 0.5
1 0. 2 0.5
1-1/4 0. 2 0.6
1-1/2 0. 3 0.7
2 0. 3 . . . . . . . . 0.9
2-1/2 0.4 1.0
3 0. 4 1.2
3-1/2 0. 4 . . . . . . . . 1.4
4 0. 5 1.6

2.8
K .9 2,8
1(1 1,1 3.4
1? 12 . . . 8.9
11 13 4.2
1(> 14 4.6

1 8 . . . . 15 4.8
'/»() 1 (i 5.1
24 17 5,5

Man hours per connection only. For cutting, threading, field handling and erection, additional
man hours are required. See pages pertaining to these operations.

Ells and Valves = Two Connections
Tees = Three Connections
Crosses = Four Connections