Heavey Water Board-HWB has published Exchange Unit Towers Internal Inspection And Maintenance Works Xu-1 And 2 During Mta-2022 At Main Plant Of Hwp (Manuguru). Submission Date for this Tender is 05-10-2022. Mechanical engineering Service Tenders in manuguru Telangana. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 28-Sep-2022 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 05-10-2022 |
| Sl. No. | Item Description |
| 1 | Tower tray inspection (sieve trays of cross flow and multi down comer trays) by opening of man ways, checking the levelness and tightness of all the fasteners, cleaning of tray deck and closing of the man way. |
| 2 | Cross flow sieve trays manway opening, inspection & closing (XU-1 in shuttdown unit) |
| 3 | Cross flow sieve trays manway opening, inspection & closing in XU-II (Operational unit) |
| 4 | Multiple down comer trays man way opening, inspection & closing |
| 5 | Dismantling of trays found damaged and clogged trays during inpsepction under Item-1, taking out damaged/cloggedcomponents throughman holes of tower, assembly of tray with newas per technical specification. |
| 6 | Cross flow tray segmentsin XU-1 (Shuttdown unit) |
| 7 | Cross flow tray segmentsin XU-2 (Operational unit) |
| 8 | Cross flow tray support channels in XU-1 (Shutt down unit) |
| 9 | Cross flow tray support channels in XU-2 (Operational Unit) |
| 10 | Multiple down comer trays |
| 11 | Removal and re-fixing of feed distribution pipe, primary and secondary sections gas raisers, perforated tray in purge tower of XU-I |
| 12 | Inspection of Nozzle liners of (Feed, recirculation) Towers through tell tale holes |
| 13 | Cleaning of Tower Internal Surface and all sieve tyrays with soft bursh and cloth in XU-1 (Shutt down unit) |
| 14 | Cleaning of Tower Internal Surface and all sieve tyrays with soft bursh and cloth inXU-2 (Operatonal unit) |
| 15 | Replacingof sparger pipe gaskets of towers, distributers etc. as per the scope of work and technical specification |
| 16 | Weld Repairing of tray supports after straightening with reinforcement with plates as suggested by EIC of work |
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