Page 35 - Estimators Piping Man Hour Manual

18 Section One-SHOP FABRICATION

ATTACHING ORIFICE FLANGES-
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.

3 5.3 4.7 _ 8.3
4 6.5 6.5 7.4 9.5
0 9.0 8.0 9.3 12.0
8 12.2 9.9 12.9 14.8
10 15.5 12.8 15.8 18,2
12 18.3 16.1 18.9 21,6
_
14 22.0 18.5 _
MS 25.1 21.2 _ _
18 28.7 24.5 - ..
20 33.9 27.8 - ...
24 41.0 35.3 - _
2(5 53.4 - - _
_
30 60.5 _ _
_
34 69.0 _ _
_
36 74.1 _ -
_
42 80.1 - -

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-
type flanges.
All man hours exclude cutting, beveling, or threading of pipe. See respective tables for these man hours.