Page 112 - Industrial Process Plant Construction Estimating and Man Hour Analysis

Pulp and paper Chapter 5 85

5.6.2 Erect headers/panels, wall/roof tubes, weld tubes
and panels sheet 2

Installation
man-hour

Historical Estimate
MH Unit Qty Unit BM
Erect headers/panels/wall/roof and weld tubes 0
and panels
Boiler sidewall tubes
Wall panels—shop assembled with headers 10.00 Ton 0 Ton 0
Fit and weld filler joining membrane panels 0.70 LF 0 LF 0
Furnace front wall tubes
Headers—loose 15.00 Ton 0 Ton 0
Wall panels—shop assembled without headers 10.00 Ton 0 Ton 0
00
Weld tubes to header stubs—2-1/2 diameter, TIG 2.40 EA 0 EA 0
no PWHT
Fit and weld filler bar at tube welds 1.00 Space 0 Space 0
Fit and weld filler joining membrane panels 0.70 LF 0 LF 0
Furnace roof tubes
Headers—loose 30.00 Ton 0 Ton 0
Tubes—loose, furnace including screen 30.00 Ton 0 Ton 0
Weld tubes to header stubs—3 diameter, TIG no 3.00 EA 0 EA 0
00
PWHT
Furnace sidewall tubes
Headers—loose 15.00 Ton 0 Ton 0
Wall panels—shop assembled without headers 10.00 Ton 0 Ton 0
Weld tubes to header stubs—2-1/2 diameter, TIG 2.40 EA 0 EA 0
00
no PWHT
Fit and weld filler bar at tube welds 1.00 Space 0 Space 0
Fit and weld filler joining membrane panels 0.70 LF 0 LF 0
Furnace rear wall tubes
Furnace rear wall tubes (wall panel—membrane) 12.00 Ton 0 Ton 0
Furnace rear wall tubes (loose) 30.00 Ton 0 Ton 0
Weld tubes to header stubs—2-1/2 diameter, TIG 2.40 EA 0 EA 0
00
no PWHT
Fit and weld filler bar at tube welds 1.00 Space 0 Space 0
Fit and weld filler joining membrane panels 0.70 LF 0 LF 0