Page 169 - Industrial Process Plant Construction Estimating and Man Hour Analysis
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Coal-fired power plant Chapter 8 145
8.5 General scope of field work required for each coal-fired
boiler sheet 4
Platen Secondary Superheater-Pendant/Inverted Loop
Headers
Supports—rods
Tube sections
Tube section supports
Saturated connections
Mountings seals
Seals
00
00
Weld tubes to header stubs—(3-1/2 < BW 4 TIG) (2001–2600) psi
Reheat Superheater-Pendant/Inverted Loop
Headers
Supports—rods
Tube sections
Tube section supports
Saturated connections
Mounting seals
Seals
00
00
Weld tubes to header stubs—(3-1/2 < BW 4 TIG) (2001–2600) psi
Primary Superheater-Pendant/Inverted Loop
Headers
Supports—rods
Tube sections
Tube section supports
Saturated connections
Mounting seals
Seals
00
00
Weld tubes to header stubs—(3-1/2 < BW 4 TIG) (2001–2600) psi
