Tamil Nadu Transmission Corporation Limited-TANTRANSCO has published tender for Nctps Ii M I Circle Bm Unit I Boiler 600Mw Attending Leaks In Steam Pipe Lines Feed Water Oil Lines In Valve Glands Bonnets And Flanges Of Power Cycle Piping. Submission Date for this Tender is 15-04-2020. Boiler Work Tenders in SE MI NCTPS II Tamil Nadu. Bidders can get complete Tender details and download the document.
| Name of Work:NCTPS II – M I Circle - BM – Unit-I – Boiler -600MW – Attending leaks in steam pipe lines, Feed water, & Oil lines in valve glands, Bonnets and flanges of power cycle piping , spray station & steam pipe lines , Boiler vents & drains, Soot Blower and PRDS lines in boiler by “ ON LINE LEAK arresting method “ for a period of six months (or) completion of quantity whichever comes earlier from the date of handing over of site. | |||||
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| Sl. No. | Item Description | Item Code / Make | Quantity | Units | |
| 1 | 1 | Online Leak arresting /Attending steam/ feed water Leak at high pressure and temperature, In PRDS System, Soot blowing system Valve Glands. drilling holes, tapping And forming threads and fixing of Adaptors and Injecting of sealing Chemical compound through the adaptors At high pressure than system pressure and Arresting leak by On Line Leak Arresting\nTechnique: Arresting of steam leak in valve glands by online sealing method in the following size valves. | |||
| 2 | 1.01 | Size of valve up to 25mm NB | 10 | Nos | |
| 3 | 1.02 | Size of valve above 25mm to 50mm NB | 5 | Nos | |
| 4 | 1.03 | Size of valve above 50mm to 100mm NB | 3 | Nos | |
| 5 | 1.04 | Size of valve above 100mm to 150mm NB | 1 | Nos | |
| 6 | 1.05 | Size of valve above 150mm to 200mm NB | 1 | Nos | |
| 7 | 1.06 | Size of valve above 200mm to 300mm NB | 1 | Nos | |
| 8 | 2 | Arresting of steam leaks in Flange and Bonnet joints by On Line Sealing method in the following sizes Valves. | |||
| 9 | 2.01 | Size of valve Up to 25mm NB | 5 | Nos | |
| 10 | 2.02 | Size of valve Above 25mm to 50mm NB | 3 | Nos | |
| 11 | 2.03 | Size of valve Above 50mm to 100mm NB | 1 | Nos | |
| 12 | 2.04 | Size of valve Above 100mm to 150mm NB | 1 | Nos | |
| 13 | 2.05 | Size of valve Above 150mm upto 200mm NB | 1 | Nos | |
| 14 | 3 | Arresting of steam leak in Pressure Seal Bonnet by On Line Sealing method in the following size Valves. | |||
| 15 | 3.01 | Size of valve up to 100mm NB | 3 | Nos | |
| 16 | 3.02 | Size of valve above 100mm NB to 150mm NB | 3 | Nos | |
| 17 | 3.03 | Size of valve above 150mm NB to 200mm NB | 1 | Nos | |
| 18 | 4 | Arresting of steam leak in Pipe welding joints, Pin hole Puncture, Cracks etc., by On Line Sealing method In the following size Pipes. | |||
| 19 | 4.01 | Size of Pipe Up to 50mm O.D. | 10 | Nos | |
| 20 | 4.02 | Size of Pipe Above 50mm to 100mm O.D. | 5 | Nos |
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