biennial contract for insulation & refractory work related to b.m.d.-i / b.m.d.ii / t.m.d. ‘d’ tps and b.m.d.-i / b.m.d.-ii / t.m.d. ‘c’ tps of unit # 8, 9 of 2x250 mw & # 7, 1x110mw, htps, kasimpur, aligarh- 1 boiler furnace ist pass & iind pass 2 steam / water piping of dia. above 100 mm. 3 flue gas duct. expansion / bellows in duct, aph hoppers esp. 4 hot air duct ( primary and secondary ) 5 steam / water / oil piping of dia. up to 100mm 6 insulation on valves 25mm to 40mm 7 insulation on valves 50mm to 100mm 8 insulation on valves 150mm to 200mm 9 insulation on valves 250mm to 300mm 10 removal of old refractory 11 recasting of refratory including the wel 12 insulation of esp area 13 flue gas duct ( i d fan inlet to chimney ) 14 hot air duct ( primary and secondary ) 15 supply and fixing of 50mm thick l.r.b. insulation pads in double layer i.e. 100mm with applying new aluminum sheet of 20 / 22 gauge. 16 supply and fixing of 50 mm thick l.r.b. insulation pads in triple layer i.e. 150 mm with applying new aluminum sheet of 20 / 22 gauge. 17 complete spray insulation and repair of spray insulation on following equipments including supply of self setting cement compound, spray wool alkali silicate binder retainers, n. s. plate, aluminum shields, s.s. and gi wire nettings, removal of old and damaged insulation, re-fixing of end shields, plastering and finishing as per bhel norms and specifications:-a ) h.p. casing 315 to 380mm thickness.b ) ip casing 315 to 380 mm thickness.c ) esv & ho control valves 315 mm thickness.d ) interceptor valves & i.p. control valves 315 mm thickness.e ) lp bye-pass, stop and control valves 315 mm thickness.all the above equipments including their end shield on front and rear side. 18 dismantling of insulation including removal of sheet metal cladding / plastering 19 laying of insulation by mineral wool pads / loose glass wool for 60mm thick insulation of density 120kg. / m3 20 plastering over the damaged plaster of insulation 21 sheet metal covering