Replacement of damaged parts of main reflux valve, inlet and exit gates of sump tank including reconditioning of 400mm dia M.S. rising main with allied works at LIS Kherlaid

Repair to 400mm dia MS rising main 375 meter approximately laid at LIS kherlaid at multiple spots along the alignment by way of cutting of rusted nuts and bolts, excavation of soil around the leakage points so as to easily access and plug the leakage. Chipping and cleaning of the rusted/damaged portion of rising main by suitable tools, then welding the joints by arc welding in two layers. Properly and removing the flux in each successive layer to avoid any welding defect and then reinforcing the joints by covering the joint with MS strips across the joints if required including providing and welding of suitable MS pipe pieces with superior quality welding electrodes wherever required at the damaged spots across the entire length of the rising main. After completion of the welding process cooling the pipe to atmospheric temperature and then testing the pipe on full load condition for any leakages. Refilling, leveling and finishing the excavated soil. Repair to 01 no 400mm dia main reflux valve installed on 400mm dia rising main of LIS Kherlaid by way of unfastening of rusted/damaged studs/nuts and bolts, opening of bonnet cover, extraction of damaged disc assembly. Then checking for any cracks, removing of foreign material deposited inside the body. Providing , fabrication and fitting of complete disc assembly and then re-fitting of the bonnet cover by p/f of new rubber joint, studs, nuts and bolts as per site requirement. Repairs to 02 no gates installed at sump tank of LIS Kherlaid by way of dismantling of damaged winch machines, extraction of gates outside the frame using manual labour and tools & tackles. Shifting of the winch machines and stem rods to the workshop for its repairs. Repairs to the winch machines by way of providing and fitting of new gears, worms and bushes, bearings as per sample. Straightening of stem rods in bench press and then shifting back to site. Providing/welding of new skin plate as per requirement in place of damaged skin plate. Reinstallation of gates at site and then greasing & oiling using standard quality grease after removing the old grease and washing / cleaning with cleaner or any other solvent to make it dirt free. Cleaning the guide channels with cleaner to make it dirt free and then greasing it and testing the gates for smooth movement The job includes complete removal of old paint by sand/emery paper and complete painting of the gates and winch machines including painting of suction and delivery pipe lines of 02 nos pumping units installed at LIS kherlaid, with two coats of enamel paint. Job also includes painting of exposed portion 400mm dia 375 meter long (approximately) in length rising main by way of cutting of all the bushes around the laid rising main from pumping station upto the delivery tank, removing of all the dirt/dust and foreign deposits on the rising main with the help of sand/emery paper, providing and applying one coat of red oxide primer and then two coats of black enamel paint on the exposed portion of rising main after proper testing of joints on rising main. Providing, laying, fitting, of aluminium cable 150 mm square single core 70 meters in length approximately from panel to starter and starter to motor along with thimbles, insulation with proper thimbling. Complete Job includes cost of material, skilled/semi-skilled manual labour, carriage/transportation charges, hire charges of tools and tackles required for the job, welding/gas cutting charges, including testing at site on full load inclusive of all taxes. Complete job.

AADISHWAR ELECTRICAL AND MECHANICAL WORKS

GEETA ENGINEERING MECH WORKS