overhauling of boiler pressure area parts , hp valves , safety valves , soot blower of 210mw boiler of u 4 , 5 and1 bktpp , scaffolding of furnace zone , plsh by aluminium scaffolding ( provided by wbpdcl , scaffolding of fsh , rh , ltsh & econimize and bsl couplock . , cleaning of furnace ( boiler first pass ) , plsh , fsh & rh zone by hp water jet , cleaning of ltsh , econimiser , pent house including roof , roof top , inside pent house accumulated ash , dog house , dead chamber , all boiler area backstay , bottom trough seal oh including sealing at top of bottom ash hopper by wooden planks , gi sheet etc . , arrangement and assistance for furnace gas tightness test , hanger & supports checking including air , inspection of pent house , repairing of pent house , demetering of pressure parts ( maximum 22 , 000 points ) , removal , fabrication & fitting of guard & guard plate for screen tube , ltsh , economiser , lifting & refitting of ltsh coil , dp test of stub/regular joints ( limited to 10% ) , insert of tube in furnace wall tube . 1 no . = 1 joint , insert of tube in ltsh & eco . tube 1 no . = 1 joint , insert of tube in fsh , plsh , rh & ltsh 1 no . = 1 joint , deposition of weld metal on tubes , stubs headers etc . , radiography of pressure welding joints . , skin casing welding , pressure parts area miscellaneous job , overhauling of boiler drum and drum , lowering , check & refitting of eco . coil , stress relieving for pressure parts weld , cleaning & resetting of spring /sling at pent house , roof loose tube proper clamping , fabrication of different size bends , fabrication of different size bends , ltsh inlet hdr stub joint repair/replace , servicing & trevi test of drum , sh , rh , s/v safety valves , safety valve seat cutting , servicing of soot blower safety valve , overhauling of hp valve size upto 25 mm , overhauling of hp valve size 25-50 mm & upto 50 mm , overhauling of hp valve size 50-100 mm & upto 100 mm , overhauling of hp valve size 100-200 mm & upto 200 mm , overhauling of hp valve size above 200 mm , eco inlet nrv ( size-12 ) , crh/hrh isolating device , fabrication & fitting f fins for boiler tube walls , replacement of hp v/v , size up to 50 mm , replacement of hp v/v , size 50-100 mm & upto 100 mm , replacement of hp v/v , size 100-200 mm & upto 200 mm , servicing of v/v actuator , size up to 50 mm 50 mm , servicing of v/v actuator , size 50-200 mm 50 mm & upto 200 mm , servicing of v/v actuator , size 200-350 mm 200 mm & upto 350 mm , tafa coating front preparation & all other associated assitance job , boiler tube sample test ( 7 to 8 samples ) pressure setting of soot blowing system , removal & reapplication of refractory & commissioning , lrsb servicing & alignment work , wall servicing & alignment work & pressure setting of soot blowing system , lrsb lance tube replacement by a new one & commissioning , wall blower replacement by a new one & commissioning , recording of full load parameter before & after oh , servicing of nrv of sh/rh attemperation line , ex-bhel expert , assistance job for rla , gst as applicable will be paid extra on production of proper documents .