|
| 1 | Line Items |
| 2 | Butterfly Valve Assembly:-Dismantling of complete BFV, fixing of dummy plates on penstock includes: -a)shifting of BFV assembly to factory for all repairing & testing works.b)Cleaning of all calcium layers, Replacement of BFV disc seal, repairing of SS seal locking ring, drilling, and tapping, replacement of damaged SS hardware, adjustment of seal, dry testing BFV complete in all respect including all men, material & all T&P required for proper completion of work including replacement of all fixing bolts & nuts make TVS/Unbrako 8.8 grade.c) Butterfly valve housing inside seal seating area (stainless steel), complete repair by welding and machining after dismantling of disc and brushes.d) Supply/replacement of damaged DU bushes, fixing of DU bushes by using nitrogen gas cooling method at driving and non-driving end of BFV disc.e) BFV Servomotor: - Complete repair and servicing of servomotor by replacing seal, hardware’s etc., |
| 3 | Buterfly Valve Expansion/Dismanteling Joints:-Complete dismantling of expansion joint, removal of calcium, replacement of seal & reassembly of expansion joint, Complete in all respect including all men, material & all T&P required for proper completion of work including replacement of all fixing bolts & nuts make TVS/Unbrako 8.8 grade. |
| 4 | Y Piece Asembly:- Complete dismantling of Y-piece, removal of calcium, replacement of seal & reassembly of Y-piece complete in all respect including all men, material & all T&P required for proper completion of work including replacement of all fixing bolts & nuts make TVS/Unbrako 8.8 grade. |
| 5 | By pass valve assembly:-Dismantling of complete Bypass Valve assembly includes: -1.Fixing of dummy plates, removal of calcium, repairing/servicing of hydraulic bypass valve and Replacement of servomotor seal, adjustment of seating area and dry testing of bypass assembly complete in all respect including all men, material & all T&P required for proper completion of work including replacement of all fixing bolts & nuts make TVS/Unbrako 8.8 grade.2.Fabrication of top cover of casing with the technique of reverse engineering or as possible. |
| 6 | Runner Assembly:-Dismantling of runner assembly with removal of calcium includes: -a) shifting of runner assembly to factory for all repairing & testing works.b) Measuring and recording bucket profile dimensions.c) Profile making in spare bucket w face area, maintaining equal space between bucket to bucket in all buckets by welding with 3.15mm D&H, L&T, ESAB make electrode 309 MO, grinding, machining, and balancing of Runner. Maintaining Final dimension as per drawing for full load output capacity in all respect including all man & material required for proper completion of work.d)Rectification/ repair of cracks to be checked by DP test, Blow holes inside and outside of buckets, between bucket to bucket and W face area, inside buckets and both sides runner face.e)Rectification/repair to be checked by DP test, Blow holes in inside and outside of buckets, between bucket to bucket and W face including replacement of all fixing bolts & nuts. |
| 7 | Nozle, Nozzle Plate and Housing:-Dismantling complete Nozzle assembly, inspection, repairing damaged nozzle plate and nozzle parts, blue matching of nozzle with plate, replacement of damaged seal and hardware’s, complete machining of welded portion, testing-complete in all respect including all man & material required for proper completion of work. b) Nozzle Housing: - Complete repair and maintenance of nozzle housing in all respect including all man & material required for proper completion of work including replacement of all fixing bolts & nuts make TVS/Unbrako 8.8 grade |
| 8 | Deflector Assembly:-Complete dismantling of deflector assembly and repair/replacement of spare deflector and complete adjustment, testing-complete in all respect including all man & material required for proper completion of work including replacement of all fixing bolts & nuts make TVS/Unbrako 8.8 grade |
| 9 | Nozle and deflector Servomotor:-Complete overhauling of all Nozzles and Deflector servomotors, replacements of damaged seal and hardware’s, dry testing complete in all respect including all man & material required for proper completion of work including replacement of all fixing bolts & nuts make TVS/Unbrako 8.8 grade |
| 10 | Turbine Shaft DE and NDE Bearings:-Complete dismantling of turbine top casing, turbine shaft, inspection, cleaning and Rebabitting of DE and NDE guide bearing, replacement of seal, gasket and hardware’s complete in all respect including all man and material required for proper completion of work including all man & material required for proper completion of work including replacement of all fixing bolts & nuts make TVS/Unbrako 8.8 grade |
| 11 | OPU:-Complete overhauling of OPU pump, Cleaning of oil tank, loading & unloading valve cleaning & pressure setting, checking of accumulator nitrogen gas pressure if required top up the gas, cleaning of all dc valves, pressure line filters, pressure switch, replacement of seals and fittings, hardware’s, including all man and material required for proper completion of work. |
| 12 | Rotor Assembly:-Thorough cleaning of rotor assembly by cleaning with electra clean/suitable cleaning agent. Re-insulation with class-F insulation by Dr. beck make epoxy gel. Voltage drop test, insulation resistance test and Impedance test of rotor poles before dismantling & after overhauling. Painting of rotor surface with two coats of insulation paint after complete surface treatment including all man and material required for proper completion of work. |
| 13 | Stator Winding:-Thorough cleaning of stator winding by Electra clean/ suitable cleaning agent. Re-insulation with class-F insulation by Dr. beck make epoxy Gel. Insulation resistance test of all three phases of stator winding. Painting of stator surface with two coats of insulation paint after complete surface treatment including all man and material required for proper completion of work. |
| 14 | Carbon Brush assembly:-Design, reverse engineering, supply of exciter carbon brush pressing spring contact assembly advanced & modern version complete for excitation of system. |
| 15 | Cooling Water System:-Complete cleaning of all pipes, bearing coolers, heat exchangers and replacement of damaged seal and hardware’s for proper function of system including all man and material required for proper completion of work including replacement of all fixing bolts & nuts make TVS/Unbrako 8.8 grade. |
| 16 | Reassembly of complete Unit:-Final box up of machine, setting of nozzle and deflector servomotors, needles, and transducers. Final assembly of OPU system and re-setting of all solenoid valves. Assembly of bearing pads, temperature sensors etc., setting of bearing clearances, centering and alignment of shaft and associated work complete in all respect. |
| 17 | Painting:-Painting of all machine parts with two coats of synthetic Enamel paint Asia/Berger after complete surface treatment and applying of one coat of red oxide primer. |
| 18 | Running of Unit:-Assembly, testing, commissioning of machine, Dynamic balancing and vibration testing of machine, dry out cycle of machine and taking load on machine. |
