bids are invited for repair, maintenance, and installation of plant/ systems/equipments (version 2) - thermal power plant; power house equipment, overhauling maintenance of pulverized fuel piping; service provider - changing of mill outlet elbow. , repairing of mill outlet elbow in installed condition by providing patch on eroded portion. , changing of straight coal pipe up to 2 meter length per joint. , changing of straight coal pipe above 2 meter length per meter ( excl. joints). , replacement/ refixing of pulverized fuel pipe bends 60 deg. to 90 deg. , replacement/ refixing of pulverized fuel pipe bends 59 deg. below , preparation of temporary platform required to carry out the work of replacement of p.f. pipe bends, repairing of p.c. piping in installed condition. , turning of straight coal pipe giving proper support. , replacement/ repairing of victaulic coupling if required. , removal and refixing of locking plate and cl s at the ends of fuel pipe bends. , repairing/replacement of coal pipe flanges after revolving victaulic coupling & rubber gasket& putting back the rubber gasket coupling after repair. , replacement of orifices or reversing the position of orifices. , putting the victaulic coupling gasket new/ old healthy and tightening the same. , replacement of rubber gasket of victaulic coupling/ closer joint of p.c. piping. , removal of pulverized coal chocking from fuel piping in between mill out let to furnace inlet by gas cutting a window type opening at various place of fuel pipe to ascertain the opening the place of chocking, removal of chocking by taking out coal from and then restoring the openings by welding. , fabrication, erection of plate forms, ladders, grills etc. and miscellaneous steel structural works consisting of light and heavy steel sections required at various places in the boiler area. , repaired of straight coal pipe by providing over patch of size 25cmx25 cm to40cmx40cm on eroded portion in installed condition. , bending of 10 mm sailma plate of size:1500x2035mm in the profile of p.c. piping. , repairing of straight coal pipe by providing a level patch of size 400x400 mm by cutting the eroded portion and weld a level patch of same size in installed condition. , repairing of p.c. pipe support and realignment of related p.c. pipe. , repairing of fuel mill inlet elbow in installed condition by welding/ providing patch on eroded portion. , repairing/replacement socket pipe-ii / socket pipe –i / spigot pipe of closure joint assembly. , retrieval of healthy coal pipe collar from scrap coal pipe for use in coal pipe by gas. , repairing of closure joint assembly complete housing by way of metal build up with suitable electrodes and as per metal composition and grinding as per original profile. , replacement of old closure joint assembly with housing by repaired / new assembly. , repairing and reclaimation of mill outlet elbow for p.c. piping. , repairing and reclaimation of bend for p.c. piping.