Page 68 - Industrial Process Plant Construction Estimating and Man Hour Analysis

Process piping Chapter 2 39

2.5 Schedule C—Solar power plant piping

Standard labor estimating units
Facility—solar power plant Large bore piping Small bore piping
Unit of measure Unit of measure
Description Man-hours per unit Man-hours per unit
Handle and install pipe, carbon steel,
welded joint Diameter inch-feet MH/LF
WT<¼0.375 00 0.07 0.18
00
0.406 <¼WT<¼0.500 00 0.09 0.23
0.562 <¼WT<¼0.688 00 0.11 0.28
00
00
0.718 <¼WT<¼0.938 00 0.14 0.35
00
1.031 <¼WT<¼1.219 00 0.20 0.50
00
1.250 <¼WT<¼1.312 00 0.25 0.75
Welding butt welds, carbon steel,
arc-uphill Diameter inch MH/EA
WT<¼0.375 00 0.50 1.10
0.406 >¼WT<¼0.500 00 0.55 1.20
00
0.562 >¼WT<¼0.688 00 1.05 2.20
00
00
00
0.718 >¼WT<¼0.938 (PWHT) 1.20 2.45
00
00
1.031 >¼WT<¼1.219 (PWHT) 1.45 2.70
1.250 <¼WT<¼1.312 (PWHT) 2.20 4.40
00
00
Olet- (SOL, TOL, and WOL) 2 BW 2 BW
Stub in 1.5 BW 1.5 BW
Socket weld Per SW table
PWHT craft support labor 0.45 1.00
Bolt up of flanged joints by weight class Diameter inch MH/EA
150#/300# Bolt up 0.40 1.00
600#/900# Bolt up 0.50 1.20
1500#/2500# Bolt up 0.65 1.60
Handle valves by weight class Diameter inch MH/EA
150# and 300# manual valve 0.45 1.00
600# and 900# manual valve 0.90 1.80
Heavier manual valve>¼1500# 1.80 2.00