NITNo10ItemNo5

Arrangement of all required safety equipment i.e. safety belts, folding ladder, safety helmet, gumboots, oxygen mask for safety manpower during execution of work as the work is to be carried out in 12 mtr. Deep dry sump of sewage pumping station.

Closing of delivery sluice valves of the pump set no.4 & 5 with the help of manual labour to avoid flooding from delivery side in the dry sump& Fixing of dead flange at the end of suction sluice valve & suction line coming from wet sump to avoid flooding condition including the work of removing the dead flange after completion of the work.

Supply of MS Pipe 500 MM dia 6 MM thickness fabricated/manufactured out of MS plate of steel grade Fe 410 as per IS 3589:2001 or out of HR coils of same / equivalent grade. Make - Jindal/DJB approved make

Supply/Fabrication of MS flanges of 16 mm thickness duly drilled as per existing flanges in the suction line at site.

Supply of Nut bolts and washer of required size as per site requirement.

Supply of neoprene sheet 5 MM thickness.

Dismantling of the choked pipe to de-silt the suction line, with cutting all rusted nuts and bolts by using grinder, gas cutter and other required tool and tackles as per site requirement.

Cleaning of the silt accumulated in the suction line and suction line of the pump with the help of required tool and tackles and manual labour the job also includes lifting the silt from the dry sump which is approximately 12mtr deep and to dump the same in the low line area inside the preemies of the SPS as per the direction of engineer-in-charge.

Fixing of flanges at the end of MS pipe with the help of welding machine, fixing the MS pipe in two parts in the existing suction line and tightening the nut bolts. Welding the MS collar for jointing the both pipes.

De-watering of contained water leaked from the suction and delivery line. (If required) including arrangement of sewage submersible pumps along with delivery hose pipe for dewatering as per site requirement.

Painting of the complete suction line from suction Valve to pump set minimum two coat of enamel paint of black color.

Opening of all closed sluice valve of pump set no.4 & 5 with the help of manual labour including testing and commissioning of the pump sets on load of satisfactory performance of the pump sets.

Devraj Enterprises (BID ID -1552591)