tender for maintenance of pcu equipments and ash slurry header of amd , dismantling and fitting of dummy / through plates . , removal and / fixing of clamps 350 / 320nb , anchoring of pipes , sleeve coupling leakage attending , repair / replacement of tee / bend / reducer / y , removal / dismantling of pipes 350 / 320nb , erection of pipes 350 / 320nb , painting , gas cutting , but welding , asst . in thickness measurement , febrication of ms bend / tee / reducer , attending awr ( 900mm ) leakage , fabrication / erection ms and other pipe ( 200nb ) , removal / dismantling of ms and other pipe ( 200nb ) , closing / opening of knife edge gate valve , erection of cast basalt line pipe 350nb , o / h of vertical turbine pump , o / h of horizontal centrifugal pumps , o / h of chemical dosing pump , o / h of slurry pump , o / h of flush mixture / sludge sump agitator , o / h of alum agitator , o / h of lime / poly agitator , turbo circulator wheel alignment / replacement , turbo circulator wheel bearing replacement , turbo circulator gear box repaire / replacement , o / h & load testing of 1ton / 5ton hoist / crane , o / h & replacemnt of butterfly valve 500mm , o / h & replacement of butterfly valve 350mm , o / h & replacement of butterfly valve 300 / 250mm , o / h & replacement butterfly valve 200 / 150 / 100mm , o / h of gate valve 350 / 300 / 250mm , o / h of gate valve 200 / 150 / 100mm , repl . of gate valve of all sizes , o / h of sluice gate of all sizes , repl . of diaphragm valve 25 / 40 / 50 / , o / h of diaphragm valve 25 / 40 / 50 , replacement / o / h of air release valve , erection of moving equipment , erection of stastic equipment , dismantling of moving equipment , dismantling of stastic equipment , ss welding , erection of scaffolding , oil seal replacement of gear box / pump , pm of recycle pump , pm of horizontal pumps , pm of screw pumps , pm of chemical pumps , pm of service pumps , pm of stirrer / agitator , pm of turbocirculator , attending gland leakage of pump / valves , pm of 1 t / 5t hoist , pm of ash block making machine , pm of pan mixture , o / h of ash block making machine , o / h of pan mixture , replacement of top / bottom cylinder , wear plate replacement , replacement / repaire of hydraulic valve , replacement of bearing . , replacement of hydraulic hoses , replacement of valve belts , o / h of high capacity sprinkler pumps