Central Coalfields Limited

Central Coalfields Limited has published (A) Repairing of worn-out materials of DSM-4 pump 500 GPM S.NO-09 along with lower and upper casing installed at C&D Colony under Kathara Colliery. (B) Repairing overhauling of flow more 1000GPM installed at river side pump house with replacement of worm out internel parts & welding, grinding, machining of upper lower casting with minor base plate repairing as per required. -(A) Repairing of worn-out materials of DSM-4 pump 500 GPM S.NO-09 along with lower and upper casing installed at C&D Colony under Kathara Colliery. 1. Dismantling of pump motor se Casting & Machining, Supply and fixing of bearing cartridge. Casting & Machining, Supply and fixing of Neck ring (G.M) Casting & Machining, supply and fixing of 2nd stage impeller (G.M) Casting & Machining, supply and fixing of G.M Gland H.T Eye bolt with Nut, Spring washer etc. Casting & Maching, supply and fixing of shaft sleeve long bush (G.M) DE+NDE Providing of Gland packing 16mm Repairing, welding, grinding, machining of C.I Coupling holes-motor side with C.I welding rods 3.15MM Repairing of upper & lower casing and vane with welding, grinding, machining with C.I welding elrectrodes 3.15mm Providing of vent-brass bib cock & flexible wired pipe Brass air release valve 19mm Providing of steam joint gaskit 2mm thickness Coupling bolt new making with thread, grinding, machining andfancing etc. size 90x19 mm Re-installation of pump motor set (B) Repairing overhauling of flow more 1000GPM installed at river side pump house with replacement of worm out internel parts & welding, grinding, machining of upper lower casting with minor base plate repairing as per required. 1. Providing & Fixing of C.I Bearing cartridge with cover Providing & Fixing of wear ring (delivery side) Bronze Shaft sleeve long bush stainless steel new providing as per shaft size of pump Dismantling of pump motor set Repairing of base plate fixing of anchor bolt texelling etc. Re-installation of pump motor set & Repaired base plate Providing of studs 19mm (HT) Nut & Bolt Fixing of nut-bolts 3/4x3 Providing of steam joint gaskit 3 mm thick Providing of vent-brass bid cock & Flexible wired pipe Providing of Gland packing 19mm Coupling ofvent-brass bid cock & Flexible wired pipe Providing of Gland packing Brass air released valve 19mm Coupling holes new making as per coupling bolt size 40x63mm Providing and fixing of tyre for coulpng size F-240 New shaft key lock making as per size 25x50x19mm and sample with material Repairing welding, grinding. Machining of top & bottom casting by C.I welding electrode size 4mm, with vein groove new making etc. Pump coupling face side crack portiomn repairing with C.I welding electrode 4mm including grinding and facing H.T Stud new making for casing with thread and as per old size 19mmx10m Providing & Fixing of brass gland set Pump shaft alignment checking bearing etc. Brass impeller vein repairing by the brass . Last date of submission for this tender is 2024-12-30. This is a Pump repair and Maintenance tender in kathara, Jharkhand