repairing of different ducts and replacement of nonmetallic bellows and servicing of associated gates dampers actuators during upcoming overhauling unit 1 sgtpp- 1 o/h of duct, damper, exp bellows of u#1:repairing of air /flue ducts and bracingpipes at eco o/l & other duct as per scope ofwork. 2 replacement of cloth type expansionbellow: size 2750x1720mm, having total length 10500mmwidth 270mm, design temperature # 338 deg. c, pressure1650mmwc, material of construction # four layers with each ofwoven glass fabric, needled glass felt, ptfe foil, both sideelastomer coated glass fabric. used in hot pa at aph outlet). 3 replacement of cloth type expansionbellow: size 1700x2400mm, having total length 10150mmwidth 465mm, ,material of construction # four layers with each of woven glass fabric, needled glass felt, ptfe foil both sideelastomer coated glass fabric. used in hot pa outlet in thehorizontal legs before entry to hot pa header (between fd& pafan area). 4 replacement of cloth type expansionbellow: size 6108x3542 mm, having total length 22000 mm,width 235 mm,design temperature 128 degc, pressure 2050mmwc, material of construction buto ep, resin bonded glass feltencased in ss wire & glass fabric. used in aph outlet convergentflue duct. 5 replacement of cloth type expansionbellow: size 3200x3000 mm, having total length 14300 mm,width 300 mm, design temperature 128 degc, pressure 2050mmwc,material of construction buto ep, resin bonded glass feltencased in ss wire mesh & glass fabric used in flue duct. used influe duct before and after esp. 6 replacement of cloth type expansion bellow as tabulated below: non mettalic expansionjoint fabric cloth for joint size 9000x2000mm, having total length 24600mm, width 212mm, design temperature 128deg.c, pressure 2050mmwc,expansion axial 23mm &lateral 10mm,material of construction buto ep, resin bonded glass felt encased in ss wire mesh & glass fabric. used in aph outlet flue duct just before convergent duct in the verticle direction at around 8.5m elevation 7 replacement of cloth type expansionbellows: non metallic expansion joint fabric cloth for jointsize 6714x3820mm, having total length 23800mm,) width290mm, design temperature 344deg.c ,pressure475mmwc,expansion axial 30mm &lateral 30mm,material of construction woven glass fabric, needled glass felt, ptfefoil, both side elastomer coated glass fabric,super wool& resin bonded glass felt encased in ss wire mesh & wovenglasss fabric. used in sa line at aph outlet 8 replacement of cloth type expansionbellow: non metallic expansion joint fabriccloth for joint size 2750x1720mm, having totallength 10500mm, width 245mm, design temperature50deg.c, pressure 2050mmwc, expansion axial 30mm& lateral 30mm, material of construction butoep, resin bonded glass felt encased in ss wiremesh & glass fabric. used in cold pa line at aphinlet. 9 replacement of cloth type expansionbellow: non metallic expansion joint fabriccloth for joint size 3820x3500mm, having totallength 17000mm, width 455mm, design temperature344deg.c, pressure 475mmwc, expansion axial 70mm& lateral 50mm,material of construction wovenglass fabric, needled glass felt, ptfe foil, bothside elastomer coated glass fabric,super wool &resin bonded glass felt encased in ss wire mesh& wovenglass fabric. used in sa line at y afteraph.of construction resin bonded glass feltencased in ss wire mesh & woven glass fabric.used in flue duct header before esp inlet 10 replacement of cloth type expansionbellow: non metallic expansion joint insulationbolster for joint size 4000x5000 mm having totallength 18200mm, width 160mm, height 100mm,design temperature 128deg.c, pressure 2050mmwc,expansion axial 12mm & lateral 23 mm, material 11 replacement of cloth type expansionbellow:non metallic expansion joint fabriccloth for joint size 6714x3820mm, having totallength 23550mm, width 225mm, design temperature50deg.c, pressure 450mmwc, expansion axial 30mm& lateral 30mm, material of construction butoep, resin bonded glass felt encased in ss wiremesh & glass fabric. used in sa line at aphinlet. 12 only cloth replacement at id fan suctionbellow size # 1750x3100 13 only cloth replacement at id fan suctionbellow size # 2220 x 2495. 14 repairing of cloth type bellows by patchwork. 15 repairing of metallic expansion bellowsby run welding 16 run welding for patch work/repairing ofwork where no new plate is required. 17 replacement of metallic expansion joint,duct size : d1700x2400 at hot pa duct. 18 replacement of metallic expansion bellowf economiser outlet. 19 servicing of seal air fan suction(dampers, actuators as tabulated below as per scope of work(01motorised+01 manual). 20 id fan suction damper (2 nos 4 blade( dampers = 1 set). 21 servicing of pa fan interconnectiondamper. 22 servicing of fd fan discharge damper 23 servicing of fd fan interconnectiondamper. 24 servicing of aph o/l pa damper 25 servicing of aph i/l pa damper 26 servicing of aph outlet sa damper( 4 blade dampers= 1 set). 27 servicing of aph inlet sa damper( 4 blade dampers= 1 set). 28 servicing of id fan inlet gates 29 servicing of id fan o/l gate 30 servicing of esp inlet & outletguillotine gate 31 servicing of seal air supply to millvalve actuator 32 servicing of id fan suction & dischargeside (guillotine gate actuator). 33 servicing of pa fan discharge gateactuator. 34 servicing of pa fan discharge gate lockactuator. 35 servicing of pa fan discharge ductinterconnection ( damper actuator). 36 servicing of fd fan discharge damperactuator. 37 servicing of pa damper at aph inlet& outlet. 38 servicing of sa damper at aph inlet& outlet. 39 servicing of esp inlet & outletguillotine gate ( actuator). 40 servicing of fd fan discharge ductinterconnection damper actuator 41 cleaning of accumulated ash inside& outside of duct 42 repairing of flue ducts and bracingpipes between eco o/l hopper and aph hot end asper scope of work