Supply and replacing corroded portion of 500mm dia rising mains MS pipeline of 30 MLD at Assonora WTP-II

Manufacturing and supplying at site of work welded MS pipes of finished ID of suitable lengths made out of fabricating, welding forming 'V' edge to both ends of the pipes sides including providing and fixing welding etc. of suitable MS hinges conforming to relevant IS codes, stresses induced due to trench conditions, backfilling class 'A' traffic loading, handling temperature variation etc. testing the pipeline to a field test pressure of 25 kg /cm2 as directed by Engineer-in-charge. (the finished internal dia. is to be considered without cement mortar lining /Epoxy painting).; 12 mm thick (plate welded); Dia in mm; 500

Supplying stacking at site and conveying hoisting, laying in position to correct line and level and linking joints of MS specials. fabricated from MS plate including cutting, bending, welding, procurement of plates, gas cutting to required size, rolling, tack welding, assembling in suitable length to form special, welding on automatic machine and forming V edge on both ends of special as required, hydraulic pressure test at factory to the required test pressure conforming to IS : 3589-1991 including freight etc. complete ; With 25 mm thick Plate; Flanges

Welding in all position with minimum 3 Nos. of runs for MS pipes and specials and flanges, internally and externally including gauging wherever necessary, fixing appurtances and other accessories, cost of water pumping arrangement and hydraulic testing etc. complete for 12mm/10mm thick M.S.plate.; Dia in mm; 500

Providing and laying three coat of anticorrosive and anti-toxic surface coating for MS pipeline. The paint shall be applied after removing the scales and rust over the pipe by wire brush. Paint shall be applied uniformly to achieve uniform coating of average DFT of 60 microns per coat with the brush. 2nd coat shall be applied over the 1st coat after 8 hrs. the process shall be repeated for the 3rd coat. DFT for the final coat shall be 35 microns. Final surface shall be uniform and shall have total thickness of about 150 microns. The rate is inclusive of material, transportation up to the site of work including, labour, machinery as required etc. complete. All three coats shall be of distinctive colour as approved be Engineer-in- charge.

Gas cutting (either square cut or V cut) pipes, plates etc. of thickness.; Above 10 mm upto 14 mm dia.

Conveying carefully from stack at site, 250m from both sides rolling and lowering in trenches, laying and jointing true to line and level and perfect linking of joints, including tack welding for mild steel pipes for water supply pipeline complete in all respects as per the direction of the engineer in-charge; Nominal diameter in mm; 500

Providing and laying in position cement concrete 1:2:4 (1 cement : 2 coarse sand: 4 graded granitic or basaltic stone aggregate 40 m nominal size) excluding cost of centering, shuttering and finishing :; In retaining walls , return walls(any thk) including attached pilasters, columns, piers, abutments, pillars, posts, struts, buttresses, string or lacing courses, parapets, coping bed blocks, anchor blocks, plain window sills, fillets etc, upto floor five level.