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| 1 | Shut Down cooling Heat Exchanger shell removal & installation for ISI activities | Shut Down cooling Heat Exchanger shell removal & installation for ISI activities |
| 2 | Bleed Condenser Top Cover, Handhole Cover, Graylock joints and tube sheet assembly removal, replacement & installation | Bleed Condenser Top Cover, Handhole Cover, Graylock joints and tube sheet assembly removal, replacement & installation |
| 3 | Primary Circulating Pump Mechanical Seal Replacement | Primary Circulating Pump Mechanical Seal Replacement |
| 4 | Preventive maintenacne and internal inspection of Brake assembly of Primary Circulating Pump Motor of rating 6.6 kV / 6 MWe | Preventive maintenacne and internal inspection of Brake assembly of Primary Circulating Pump Motor of rating 6.6 kV / 6 MWe |
| 5 | Opening, inspection and cleaning of Winding cooler of PCP motor of rating 6.6 kV / 6 MWe | Opening, inspection and cleaning of Winding cooler of PCP motor of rating 6.6 kV / 6 MWe |
| 6 | Overhauling and inspection of Shut Down cooling pump | Overhauling and inspection of Shut Down cooling pump |
| 7 | Overhauling and inspection of Moderator Canned motor pump | Overhauling and inspection of Moderator Canned motor pump |
| 8 | Overhauling and inspection of PHT- Moderator System Control Valves | Overhauling and inspection of PHT- Moderator System Control Valves |
| 9 | Overhauling and inspection of ECCS System Air operated valve along with actuator at reactor side | Overhauling and inspection of ECCS System Air operated valve along with actuator at reactor side |
| 10 | Overhualing or replacement of radiologically active Motorized Valves of size 200 to 300 NB of Moderator System | Overhualing or replacement of radiologically active Motorized Valves of size 200 to 300 NB of Moderator System |
| 11 | Overhualing or replacement of radiologically active Motorized Valves of size 200 to 350 NB of PHT System | Overhualing or replacement of radiologically active Motorized Valves of size 200 to 350 NB of PHT System |
| 12 | Overhauling of PHT-MOD system pneumatic actuators in reactor building | Overhauling of PHT-MOD system pneumatic actuators in reactor building |
| 13 | Maintenance of PHT- Moderator System Manual valve (size 3\\" to 14\\") at reactor side (including RV & NRV) | Maintenance of PHT- Moderator System Manual valve (size 3\\" to 14\\") at reactor side (including RV & NRV) |
| 14 | Mainteancne or replacement of Fire water system hose reel drum in reactor bulding | Mainteancne or replacement of Fire water system hose reel drum in reactor bulding |
| 15 | Removal, shifting, assitance in testing at test bench facility and installation of Snubbers of PCP Motor, Shut down heat exchanger, Shut down pump, SG Feed water piping & PHT relief piping. | Removal, shifting, assitance in testing at test bench facility and installation of Snubbers of PCP Motor, Shut down heat exchanger, Shut down pump, SG Feed water piping & PHT relief piping. |
| 16 | Removal, Cleaning and installation of distributer assembly per section of Heavy Water upgrading plant Distillation unit/ column (including manhole and handhole cover opening and closing) | Removal, Cleaning and installation of distributer assembly per section of Heavy Water upgrading plant Distillation unit/ column (including manhole and handhole cover opening and closing) |
| 17 | Opening, Cleaning and boxup of Heavy Water upgrading plant Seal water Circulating tank with inbuilt heat exchanger | Opening, Cleaning and boxup of Heavy Water upgrading plant Seal water Circulating tank with inbuilt heat exchanger |
| 18 | Reactor Building and Reactor Auxiliary building hatch block removal and installation | Reactor Building and Reactor Auxiliary building hatch block removal and installation |
| 19 | Emergency core cooling system Rupture disc (16 inch size) replacement | Emergency core cooling system Rupture disc (16 inch size) replacement |
| 20 | Reactor side Bleed Cooler Shell Type Heat Exchanger cover removal & installation for ISI activities | Reactor side Bleed Cooler Shell Type Heat Exchanger cover removal & installation for ISI activities |
| 21 | Inspection and necessary corrections on D2O lines in Reactor Auxillary building trenchs, including removal and installation of heavy hatch covers | Inspection and necessary corrections on D2O lines in Reactor Auxillary building trenchs, including removal and installation of heavy hatch covers |
| 22 | Hydraulic snubbers installation at Reactor Outlet Headers | Hydraulic snubbers installation at Reactor Outlet Headers |
| 23 | Internal inspection of SDS-2 tank, with opening of top flange (03 nos.) and bottom flange (01 no.) | Internal inspection of SDS-2 tank, with opening of top flange (03 nos.) and bottom flange (01 no.) |
| 24 | Deluge Valve nozzle & header cleaning (1 DV consists of 90 nozzles on average) during GT/UT fire water isolation | Deluge Valve nozzle & header cleaning (1 DV consists of 90 nozzles on average) during GT/UT fire water isolation |
| 25 | UGP APW, CHW, Seal Water, Vacuum & Steam Condensate Transfer Pump & spare pumps overhauling | UGP APW, CHW, Seal Water, Vacuum & Steam Condensate Transfer Pump & spare pumps overhauling |
| 26 | RB, RAB & UGP Manual Valve Diaphragm Replacement | RB, RAB & UGP Manual Valve Diaphragm Replacement |
| 27 | PHT Leakge Collection Pump Overhauling and Replacement | PHT Leakge Collection Pump Overhauling and Replacement |
| 28 | UGP Condenser (Reflux & Top Vent Condenser) Cover Removal, Inspection, Cleaning & Installation | UGP Condenser (Reflux & Top Vent Condenser) Cover Removal, Inspection, Cleaning & Installation |
| 29 | Moderator Heat Exchanger channel cover removal and installation for ISI activities | Moderator Heat Exchanger channel cover removal and installation for ISI activities |
| 30 | PHT system Bellow Sealed Globe Valves Greasing & Free Operability check | PHT system Bellow Sealed Globe Valves Greasing & Free Operability check |
