Page 122 - Estimators Piping Man Hour Manual

Section Two-FIELD FABRICATION 105

HEAVY WALL END CLOSURES—PRESSURE TYPE

Carbon Steel Material
NET MAN HOURS EACH
Nominal WALL THICKNESS IN.
Pipe
Size .750 1.00 1.25 1.50 1.75 2.00 2.25 2.50
_ _ _
3 5.4 __ _ _ — _ _
_
4 8.1 9.6 10.9 _ _
5 _ 9.9 11.6 13.1 14.8 _ _ ._
6 _ _ 15.8 18.5 21.0 23.7 25.8 27.4 -
8 _ 16.6 19.5 22.1 24.9 27.1 28.8 30.8
10 — 26.3 29.9 33.7 36.8 39.1 41.8
!•> ii. j — — 41.3 46.7 51.0 54.0 57.8
14 _ — - 47.7 53.9 58.8 62.3 66.7
16 _ _ — _ _ 62.8 68.4 72.6 77.5
18 _ — — — — 76.2 80.8 86.4
_
20 .._ — _ 82.2 87.2 93.2
22 _ _ _ — — __ 90.5 95.9 102.5
24 - - - - 98.8 104.7 111.9
2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50
_ _ _
10 44.6 47.7 _ _ _ _
12 61.8 66.1 69.1 72.2 __ —
14 62.3 66.6 69.7 72.9 76.2 79.8 —
16 82.8 88.5 92.6 96.8 101.1 105.7 — _.
18 92.4 98.8 103.4 108.0 112.8 117.9 _ _.
20 99.7 106.6 111.5 116.6 121.8 127.2 132.3 1 136.9
22 109.6 117.2 122.7 128.3 134.0 140.1 145.6 150.7
24 119.5 127.8 133.8 139.8 146.1 152.7 158.8 164.4
4.75 5.00 5.25 5.50 5.75 6.00
20 142,5 147.5 152.7 157.3 162.0 166.9
22 156.8 162.4 168.0 173.1 178.3 183.6
24 171.1 177.1 183.4 188.9 194.6 200.4

Construction; End closures as such are field fabricated closures; orange peel, saddle, or flat plate type.
Preheating: If specified or required by codes, add for this operation. See man hours for preheating.
Stress Relieving: Stress relieving of welds in carbon steel material is required by the A.S.A. Code of Pressure Piping
where the wall thickness is s/4" or greater.
Al! the above butt welds are 3/4" or greater and must be stress relieved, if end closure involves a circumferential
weld.
See respective man hour tables for stress relieving.