Tender For Overhauling Of Coarse Ash Handling Equipment And Other Related Works- 1 Removing the expansion bellows, Expansion joints, wornout asbestos gland packing (20MM), Spool pieces, Plate valves from the Eco hopper, Replacing/ Reconditioning the worn out parts, servicing the plate valves (200mm & 400mm), assembling the expansion joints with new asbestos gland packing (20mm),expansion bellows, replacing the wornout spool pieces, fixing the plate valves with new gaskets to the ECO hopper, replacing all the bolts & nuts with washers, consumables, T&P’s required etc.,( Metallic gasket and asbestos gland rope supplied by TANGEDCO) 2 Removing the 200 NB dome valve, Top plate, dismantling the dome valve internals such as dome, seal ring, seal, Spigot ring, V-ring, O-Rings, Shafts, Bearings, Bush, Dome valve housing internals ect,. Replacing/ Reconditioningthe wornout internals servicing the valves, assembling the dome, seal ring, seal, V-ring, O-Rings, Top plate, Bearings, Bush to the dome valve housing, replacing all the bolt & nuts with washerhire charges for special tools,T&P’s required, consumables and other Safety appliances required etc., 3 Dismantling theConveying air lines,Flushing the lines, checking the lines for any leakages and servicing allthe valves in the lines assembling the line with new gaskets and replacing the worn out valves and fixing the valves back into its position and commissioning the lines including the cost of hire charges for special tools and other T&P required and consumables. 4 Cleaning & clearing the chocked / accumulated ash inside the Eco ducts by scraping the ash to Eco hoppers, Dismantling the Dome valves, Spool pieces and clearing the ash from Eco hopper bottom, Clearing the collected ash from Eco hopper elevation to 0 mtr elevation as per the direction of the Engineer - in-charge including the charges for all required, consumablesand all labour charges etc., 5 Dismantling of existing heavily wornout 125NB Coarse ash conveying pipe linesfrom Eco hopper to buffer hopper. 6 Dismantling of existingheavily wornout 125NB Coarse ash conveyinglines 900 bend from Eco hopper to buffer hopper and renewal the new900 bend. 7 Transporting the ERW pipe from MTPS-II/Central stores to Eco hopper area and erection of 125NB New M.S ERW pipesfromEco hopper to buffer hopperfor Coarse Ash conveying lineswith suitable joints & welding the flange for coupling directed by the Engineer - in -Charge. 8 Labour charges for welding eroded initial welding joints in the Eco Hopper above 2 mtr level (including the cost of welding electrodes)
