Source level Aug. and Imp. Of D/System of LWSS Daulatpur Jalari LWSS Takkipur LWSS Samella Scoutt

Amount

Providing, Laying , jointing & testing of MSERW pipe 200mm dia ( Zinc Coated) conforming to BIS /ISO 3183-2007 of steel grade L-290 with circumfrential butt welded joints by electrical arc welding with minimum two layers /passes of weld capable to with stand required test pressure (minimum welding thickness shall be equal to pipe wall thickness in a random length of 5.5 to 6.5 meters ( having pipe diameter, wall thickness weight & frange table as specified below ) including manufacturing and fabrication of reducers/tapers, all short pieces, bends of required degrees as per site requirements made from parent tubes. The laying of pipe shall also include intermediate flanged joints spaced at an interval of 3rd pipe length or where ever required as per direction of the Engineer- in- charge duly welded in three layers ( two at outer & one on inner face) and all operations such as cutting , welding, jointing, fabrication of bends, tees i.e. lowering & laying in excavated trenches to ensure required level i/c flushing, cleaning and hydraulic testing complete in all respects to the satisfaction of the Engineer-in-Charge ( Earth work in trenches and the cost of providing flanges i/c nuts & bolts & gasket will be measured and paid for seperately). The fabricated bends shall have three or four cuts having its radius not less than five times the dia of pipe and the pipes shall be factory galvanized ( Zinc coating both inside and outside ) as per relevant IS standard and the damaged portion of the pipes and specials ( if damaged during laying, jointing & operation of pipe) made from the parent tube, shall be provided anti corrosive bituminious paint over a priming coat as per AWWA specification C-203 -1978 . the welding electrod shall be as per IS 814 of Advani Oerlikon / L&T or ISI marked make . The rates also includes entire carriage of material, flushing, cleaning & hydraulic testing. DP test of butt welded joints complete in all respect and to the best satisfaction & direction of Engineer-in-Charge with in all leads and lifts. Note Negetive Tolerance of wall thickness should not be nore than +/-3%. (4.8 mm thick)

250mm dia (4.80mm Thick)

Om Parkash Govt Contrator

M/s Kamla Contruction