Himachal Pradesh Irrigation And Public Health Department Tender

300 mm dia MSERW pipe W.T. 4.40 ,flange table-23 (RD 0 to 415)( 5% flange)

Providing , laying, jointing ( by way of circumfrential butt welded joints by electrical arc welding) and testing of MSREW pipe in trenches (ISO:3183-2007) of following dia meters confirming to L-390 or X-56 (latest with upto date amendments) steel grade- A having wall thickness as specified below with bevelled end and capable of withstanding required test pressure in random length of 4 to 7 meters, including specials, short pieces, bends, reducers, tees etc as per site requirement made from parent tube, provinding and welding of MS flanges detailed as below. The MS flanges shall confirm to BIS 6392-1971 (with latest up to date amendments) duly welded in two layers (two inner and two outer) with pipes at both ends as per relevant BIS standards along with nuts and bolts of required sizes, 3mm thick compressed asbestos fiber/synthetic rubber gaskets confirming to relevant BIS standards. The laying of pipe will include all operation such as cutting, welding, jointing, providing & fixing of MS flanges, fabrication of bends, tees etc. including lowering and laying in excavated trenches to ensure required level including flushing, cleaning and hydraulic testing complete in all respects to the satisfaction of the Engineer in charge. The fabricated bends shall have three or four cuts having its radius not less than five times the dia of pipe. The pipes shall be factory galvanized (zinc coating both inside and outside) as per relevant IS standards and the damaged portion of the pipes and specials made form the parent tube shall be provided anticorrosive treatment by applying two coats of anticorrosive bituminous paint over a priming coat as per AWWA specifications C-203-1978. The welding electrodes 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 complete to the best satisfaction & directin of Engineer in charge with in all leads and lifts. (Earth work in trenches will be measured and paid for separately).

350 mm dia MSERW pipe W.T. 4.80 (RD 0 to 310)( 95% flange)

300 mm dia MSERW pipe W.T. 4.40 , (RD 0 to 415)(95% flange)