OT 01

Amount

Opening of manhole doors in 5.0m elevation and closing all the manhole doors after inspection and completion of other rectification works including hire charges T&Ps, all consumables and all labour charges etc., (ESP Hoppers)

Strengthening the wornout portion and arresting the punctures in SS area by welding in ESP A,B,C&D pass hoppers including hire charges for T&Ps, SS welding electrodes and all consumables etc., (SS/Strengthening)

Strengthening the wornout portion and arresting the punctures in MS area by welding in ESP A,B,C&D pass hoppers including hire charges for T&Ps, MS welding electrodes and all consumables etc., (MS/Strengthening)

Charges for strengthening the hopper center supporting structure (one hopper centre supporting structures = 05 nos of various length of pipe support) this work involves complete dismantling of supporting structure pipes and positioning and welding the ESP hopper including hire charges for T&Ps, MS welding electrodes and all consumables etc., (Centre supporting structure/Strengthening)

Removing the chute for choked ash unloading to the floor area through chute and then reassembling of chute etc., including T&P’s, all consumables and all labour charges etc., (Chute)

Clearing of ash chock in ESP Hoppers/APH & Duct Hoppers. This work involves dismantling of dome valves, spool piece for clearing the ash and then reassembling of plate valve and dome valve etc., including T&P’s, all consumables and all labour charges etc., (Ash choking)

Removing the 250 NB & 300 NB dome valves from the line, dismantling the valves, Inspection of seal & other parts, reconditioning & replacing of wornout seal & Other parts if necessary, reassembling the valve and fixing with line in Proper manner as per the direction of Engineer-in-charge. (250 NB & 300 NB dome valves)

Removing the 100 NB & 150 NB dome valves from the line, dismantling the valves, Inspection of seal & other parts, reconditioning & replacing of wornout seal & Other parts if necessary, reassembling the valve and fixing with line in Proper manner as per the direction of Engineer-in-charge. (100 NB & 150 NB dome valves)

Dismantling and removing of 400NB Dome valve from Fly ash conveying pipe line silo top side and replacement of wornout internal spares like Dome, top plate, dome seal, bush, bearing, seal plate etc., and assembling of dome valve in the conveying line in Proper manner as per the direction of Engineer-in-charge. (400NB Dome valve)

Opening the manhole of the Bag filter unit in Fly ash Buffer hopper after isolation and after sufficient cooling dismantling air purging line, removal of all the Bag filters one by one, bringing the Bag filter outside the housing, cleaning with compressed air, checking of bag filter/cage any damage or in the cage and refitting all the bag filters in position, and closing the man hole as per the direction of Engineer-in-charge. Including hire charges T&P required, consumables and all labour charges etc., (Bag Filters)

Removing the 200NB & 250 NB sleeve coupling from the line, dismantling the coupling, inspection of seal & other parts reconditioning/replacing of worn-out seal & other parts if necessary, reassembling the coupling and fixing with line in proper manner as per the direction of Engineerin-charge (200NB & 250 NB sleeve coupling)

Replacing the damaged fluidizing pad & arresting punctures in ESP buffer hopper fluidizing pad and reassembling with new fluidizing pad (if necessary) in proper manner as per the direction of Engineer-in-charge. (fluidizing pads)

Dismantling of existing heavily wornout 50NB M.S ERW pipe in ESP Buffer Hopper Purging line, inclusive the cost of all consumables, hire charges of all T&Ps, safety appliances and all labour charges etc.,

Erection of 50NB M.S ERW pipe in ESP Buffer Hopper Purging line, inclusive the cost of all consumables, hire charges of all T&Ps, safety appliances and all labour charges etc.,

Chennai Radha Engineering Works (P) Ltd. (BID ID -1064335)