| 1 | 1 | Mechanical Maintenance Contract for two years for entire Ash Handling Plant of two units of 250 MW at STPS ,WBPDCL. | BI01010001010000000000000515BI0100001112 | | |
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| 2 | 1.01 | Mechanical Maintenance Contract for entire Ash Handling Plant for two units of 250 MW. | BI01010001010000000000000515BI0100001113 | 24 | Month |
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| 3 | 1.02 | Replacement of 80NB MS Pipe. | BI01010001010000000000000515BI0100001114 | 300 | Meter |
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| 4 | 1.03 | Replacement of 100NB MS Pipe. | BI01010001010000000000000515BI0100001115 | 300 | Meter |
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| 5 | 1.04 | Replacement of 150 NB MS Pipe. | BI01010001010000000000000515BI0100001116 | 300 | Meter |
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| 6 | 1.05 | Replacement of 200NB MS Pipe. | BI01010001010000000000000515BI0100001117 | 300 | Meter |
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| 7 | 1.06 | Replacement of 250NB MS Pipe. | BI01010001010000000000000515BI0100001118 | 300 | Meter |
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| 8 | 1.07 | Replacement of 300NB MS Pipe. | BI01010001010000000000000515BI0100001119 | 400 | Meter |
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| 9 | 1.08 | Replacement of 350NB MS Pipe. | BI01010001010000000000000515BI0100001120 | 300 | Meter |
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| 10 | 1.09 | Replacement of 400NB MS Pipe. | BI01010001010000000000000515BI0100001121 | 100 | Meter |
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| 11 | 1.1 | Replacement of 200NB-400NB V/V. | BI01010001010000000000000515BI0100001122 | 40 | No. |
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| 12 | 1.11 | Structural Support Work. | BI01010001010000000000000515BI0100001123 | 8 | MT |
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| 13 | 1.12 | Silo Internal Cleaning with proper checking and replacement of the damaged fluidizing tiles and pipelines. | BI01010001010000000000000515BI0100001124 | 4 | No. |
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| 14 | 1.13 | Removal and refixing of ash intake valve of ESP hopper with proper checking and replacement of the danaged fluidizing tiles (if minimum 11 no. hoppers checking done at a time.) | BI01010001010000000000000515BI0100001125 | 200 | NOS |
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| 15 | 1.14 | Coupling or aligne ring or gasket replacement at vertical line towards silo top. | BI01010001010000000000000515BI0100001126 | 20 | NOS |
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