Page 107 - Estimators Piping Man Hour Manual

90 Section Two-FIELD FABRICATION

ATTACHING OBIPICE FLANOES—SLIP-ON AND
THKEADED TYPES
Carbon Steel Material
MAN HOURS PER PAIR
SERVICE PRESSURE RATING
Slip-On Type Threaded Types
Size
Ins, 300 Lb. 300 Lb. 400-600 Lb. 900-1500 Lb.
1 3.8 5.2 _ 7.2
11/4 4.2 5.2 7.2
llK 4.4 5.2 _ 7.2
_
'> 4.6 5.2 7,2
_
2V2 5.3 5.8 7,7
'3 7.1 6.3 - 1.1.0
4 8.6 8.6 9.8 12.7
(i 12.0 10.7 12.4 16.0
8 16.2 13.2 17.2 19.7
1(» 20.6 17.0 21.0 24.2
12 24.4 21.4 25.2 28.8
14 29.3 24.7 - _
_
Hi 33.5 28.3
IS 38.2 32.6 _ _.
_
20 45.2 37.0 _
_ _
24 54.6 47.0
_
26 71.2 - _
_
30 80.7 - _
34 92.0 _ _ -
_
3(i 98.8 _ _
_
42 107.6 - .._

Slip-On Types: Man hours include slipping on, welding, placement of paddle-type plates, and bolting of pair of orifice
flanges.
Threaded Types: Man hours include screwing on, placement of paddle-type plates, and bolting up of pair of orifice
flanges.
All man hours exclude cutting, beveling, or threading of pipe. See respective tables for these man hours.