Tamil Nadu Transmission Corporation Limited-TANTRANSCO has published Nctps I Se Mi Circle R And M 21 22 Tm Dn Overhauling Of Boiler Feed Pump Cartridge Assembly Model Fk6d30 Nctps I Se Mi Circle R And M 21 22 Tm Dn Overhauling Of Boiler Feed Pump Cartridge Assembly Model Fk6d30 Including Dynamic Balancing Of Rotatin. Submission Date for this Tender is 06-10-2021. Boiler Feed Pump Tenders in Works Tamil Nadu. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Disassembling of end cover, thrust pads with carrier ring, thrust collar lock nut, thrust collar by heating and pulling, journal bearing, bearing housing top and bottom, bearing bracket, oil guard, oil catcher, seal lock nut, seal, seal housing, water jacket by pulling from NDE side of cartridge, including the cost of consumables and hire charges for T&Ps. |
| 2 | Disassembling of coupling lock nut, coupling hub, journal bearing, oil catcher, oil guard, bearing housing top and bottom, bearing bracket, seal lock nut, seal, seal housing, water jacket by pulling from DE side of cartridge, including the cost of consumables and hire charges for T&Ps. |
| 3 | Dismantling of mechanical seals of DE & NDE – seal sleeve, grub screw, seal locking screws, compression springs, carbon ring, tungsten carbide ring, all ‘O’ rings, etc including the cost of consumables and hire charges for T&Ps. |
| 4 | Removal of discharge cover, spring disc, balance drum by heating, last stage diffuser, from the stage bodies after placing the whole stage body assembly on the stage body dismantling structure, including the cost of consumables and hire charges for T&Ps. |
| 5 | Removal of impellers 1 to 6, diffusers 1 to 5 and stage body rings one by one in order by heating (in case of diffusers and stage bodies) and finally taking out, including the cost of consumables and hire charges for T&Ps. |
| 6 | Charges for checking the run out of the shaftand measuring the dimensions of all wearing rings, including the cost of consumables and hire charges for T&Ps. |
| 7 | Removal of impeller wearing rings (neck & eye), fixing up with new wearing ring if necessary,machining to obtain required clearance that could be maintained with the ring section and diffusers on final assembly, including the cost of consumables and hire charges for T&Ps. |
| 8 | Removal of balance drum bush from discharge cover using dry ice (or) cutting it out, reconditioning inside the discharge cover if necessary, fixing of new bush after setting with discharge cover to get required clearance with balance drum, machining the balance drum if necessary. including the cost of consumables and hire charges for T&Ps. |
| 9 | Dynamic balancing of BFP cartridge rotating parts includes Assembling of rotating parts on the shaft for dynamic balancing. including the cost of consumables and hire charges for T&Ps. |
| 10 | Transporting of rotating parts with the shaft from Repair bay NCTPS-Ito work spot, including hire charges for T&Ps. |
| 11 | Transporting of rotating parts with the shaft from work spot to Repair bay NCTPS-I, including hire charges for T&Ps. |
| 12 | Dismantling of rotating parts from the shaft after dynamic balancing, including the cost of consumables and hire charges for T&Ps. |
| 13 | Cleaning of all impellers, diffusers, ring section, balance drum bush, discharge cover etc., for final assembly including the cost of consumables and hire charges for T&Ps. |
| 14 | Assembling of suction guide, impellers, diffusers and ring section one by one on the shaft by heating and inserting in case of impellers and placing and pressing in case of diffusers and ring sections renewing of all sealing "O" rings and Teflon rings including the cost of consumables and hire charges for T&Ps. |
| 15 | Assembling of balance drum by heating and placing on the shaft, balance drum lock nut, spring disc and discharge cover including the cost of consumables and hire charges for T&Ps. |
| 16 | Assembling of mechanical seals of DE & NDE - carbon ring, tungsten carbide ring, all "O"rings ,compression springs, seal locking screws, seal sleeve, grub screw , etc., including the cost of consumables and hire charges for T&Ps. |
| 17 | Assembling of water jacket, seal housing,seal,seal lock nut, bearing bracket, bearing housing top and bottom, oil catcher, oil guard, journal bearing, coupling hub, coupling lock nut, to DE side of cartridge, including the cost of consumables and hire charges for T&Ps. |
| 18 | Assembling of water jacket, seal housing,seal,seal lock nut, bearing bracket, bearing housing top and bottom, oil catcher, oil guard, journal bearing,thrust collar, thrust collar lock nut,thrust pads with carrier ring, end cover to NDE side of cartridge, including the cost of consumables and hire charges for T&Ps. |
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