Biennial Contract For Work Of Oh Of Valves , Cleaning Of Heatexchangers , Filters , Strainers And Thermal Insulation Of Various Equipments And Valves In Tg Area Of Ntpc Korba , O / H Of Valves In Tg Area , Safety Valve ( 4-8 ) Oh , Cont Vv ( <> ) Oh , Cont Vv ( <=6 ) Oh , Cont Vv ( 6-12 ) Oh , Cont Vv ( >12 ) Oh , Hp Valves ( 65Nb ) Repl , Hp Valves ( 150Nb ) Repl , Misc Works ( <> ) Fabrication , Bends / Laterals ( Dia<=6 ) Fabrication , Bends / Laterals ( Dia>6-12 ) Fabrication , Bends / Laterals ( Dia<=6 ) Repl , Bends / Laterals ( Dia>6-12 ) Repl , Bends / Laterals ( Dia>12 ) Repl , Ms Piping ( Nb50 ) Laying , Ms Piping ( Dia<=6 ) Laying , Ms Piping ( 400Nb ) Laying , Bfv ( Dia 6-12 ) Oh , Bfv ( Dia>=12 ) Oh , Bfv ( Seal ) Repl , Nrv ( Dia>=12 ) Oh , Bfv ( 1600Nb ) Oh , Ms Piping ( Nb300 ) Fabrication , Ms Piping ( Nb300 ) Repl , Multiport Vv ( <> ) Oh , Gear Boxes ( <> ) Oh , Hp Valves ( Dia>6-12 ) -Repl , Hp Valves ( 400Nb ) Attend Defect , Condenser ( Coltcs ) Inspection , Steam Piping ( <> ) Repl , Steam Piping ( Dia<=6 ) Laying , Steam Piping ( Dia>12 ) Laying , Hpbp Valves ( <> ) Serv , Hpbp Valves ( <> ) -Oh , Condenser ( Coltcs ) Repair , Lp Valves ( Dia>6-12 ) Oh , Lp Valves ( Dia>12 ) Oh , Lp Valves ( 250Nb ) Instal / Remove , Hanger ( <> ) Instal / Remove , Man Vv Actu . ( >32<=64 ) Inspection , As / Cs Line ( 40Nb ) Welding , As / Cs Line ( 80Nb ) Welding , As / Cs Line ( 350Nb ) Welding , Mild Steel Piping ( Dia<=6 ) Attend Defec , Mild Steel Piping ( Dia>6-12 ) Attend De , As / Cs Line ( 25Nb ) Serv , As / Cs Line ( 400Nb ) Serv , Ms Piping ( 400Nb ) Repair , Hpt Cont Vv ( >210-500Mw# ) Attend Defect , Condenser ( Rubber Bellow ) Attend Breakdo , Cleaning Of Heat Exch & Strainers In Tg , Lub Oil Cooler ( <> ) -Cleaning , Lub Oil Cooler ( <> ) Oh , Bfp ( Suc Strnr ) Inspection , Lp Flash Tank ( <> ) Cleaning , Bfp ( Luboil Cooler ) Cleaning , Plate Heat Exchngr ( <> ) -Cleaning , Strainer / Filter ( 600Nb ) Cleaning , Cep ( Suc Strnr ) Cleaning , Bfp ( Suc Strnr ) Cleaning , Condenser ( Waterbox ) Cleaning , Cont Fluid Tank ( Fullerearth Filter ) Cle , Dearator ( Vent Condenser ) Cleaning , Condenser ( Hotwell ) Cleaning , Tank ( 21-50M3 ) Cleaning , Tank ( 5-10M3 ) Cleaning , Vac Pp / Blwr ( Cooler ) Cleaning , Blwr / Fan ( <> ) Cleaning , Hp Flash Tank ( <> ) Cleaning , Lub Oil System ( Filter ) Cleaning , Cont Fluid Tank ( Fine Filter ) Cleaning , Bfp ( Sealwater Filter ) Cleaning , Tank ( <=5M3 ) Cleaning , Tank ( 11-20M3 ) Cleaning , Td Bfp Turbine ( Luboil Cooler ) Cleaning , Bfp ( Luboil Tank ) Cleaning , Cond Tube ( 210-500Mw ) Bullet Cleaning , Mot ( >210-500Mw# ) Oh , Tank ( 201-500M3 ) Cleaning , Scaffolding ( <=250Mw ) Erection , Duct ( Cw Sys ) Cleaning , Scaffolding ( <> ) Erection , Crane ( Hot Crane ) Testing , Condenser ( Coltcs ) Cleaning , Misc Works ( <> ) Daily Chks , Thermal Insulation In Tg Area . , Pad Insulation ( 75 Mm Thk ) Instal / Remove
