The Work For Annual Running Breakdown Maintenance Of Insulation And Refractory Of Unit No . - 9 , 10 And 11 , 3X200 Mw , Btps , Obra , Distt- Sonebhadra ( U . P . ) ., Obra-Uttar Pradesh
TDR : 25674693
Tender Notice
Corrigendum Details
BOQ
Expired
Obra
Uttar Pradesh
Corrigendum : The Work For Annual Running Breakdown Maintenance Of Insulation And Refractory Of Unit No . - 9 , 10 And 11 , 3X200 Mw , Btps , Obra , Distt- Sonebhadra ( U . P . ) .
Name of Work: The work for annual Running Breakdown Maintenance of Insulation and Refractory of Unit No.- 9,10 & 11, 3x200 MW, BTPS, Obra, Distt- Sonebhadra (U.P.).
Sl.No.
Item Description
Item Code / Make
Quantity
Units
1
1
Insulation of Pipe Lines, Valves, Headers, Pressure Parts (I&II Pass) and Ducts etc. When new cladding is to be provided with 24/22 guage (GI/Al) to be provided by department free of cost including fabrication and fixing of cladding with structure -
2
1.1
When one layer of new/old mineral wool blankets/pads thickness 50/75/100 mm.
150
M2
3
1.2
When more than one layer of new/old mineral wool blankets/pads thickness 50/75/100 mm.
150
M2
4
2
Insulation of Pipe Lines, Valves, Headers, Pressure Parts (I&II Pass) and Ducts etc. When old removed GI/Al sheets are to be refixed with help of self tapping screw.
5
2.1
When one layer of new/old mineral wool blankets/pads thickness 50/75/100 mm.
150
M2
6
2.2
When more than one layer of new/old mineral wool blankets/pads thickness 50/75/100 mm.
150
M2
7
3
Dismantling old & damaged insulation cladding and Fixing of ready made rock wool mattresses (material to be supplied by the contractor as per specification confirming to IS:8183/76 as detailed below ).
8
3.1
50 mm thickness
150
M2
9
3.2
75 mm thickness
150
M2
10
3.3
100 mm thickness (single or double layer)
150
M2
11
4
Insulation of headers in pent house of boiler. When two or more than two layers of new/old mineral wool blankets/pads of thickness 50/75/100 mm are to be provided on the headers in pent house. Total area of headers in pent house.
200
M2
12
5
Replacement/refixing of old/new GI/Al sheets with the help of self tapping screw. The mineral wool will not be replaced.
150
M2
13
6
REFRACTORY WORK
14
6.1
Removal of old and damaged refractory.
9
MT
15
6.2
Recasting of refractory including the welding of SS/MS rod.
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