Himachal Pradesh Irrigation And Public Health Department Tender

Excavation in foundation and trenches etc. (in pipes and pits) in all kinds of soils such as pick work, jumper work, blasting in soft/hard rock, chiselling/wedging out of rock/where blasting prohibited)saturated soil stacking the excavated earth within all leads and lifts clear from the edge of excavation and then returning the stacked soil in 15cm layers when required into plinth sides of foundation etc. consolidating each deposited layer by ramming and watering and then disposting of all surplus excavated earth as directed within all leads and lifts including uprooting of trees dressing of beds, and sides and preparation of sub-grade, restoration of unmetalled/metalled/paved surfaces to its original condition including soring, strutting, timbering and dewatering where ever houses, fixing caution boards, crossing over trenches and to the entire satisfaction of the Engineer-in-charge.

Providing, laying, fixing, jointing and testing in trenches of MSERW pipe (Zinc coated) circumferential butt welded pipes including cost of flanged bends of all degrees conforming to IS/ISO:3183-2007 with steel grade L-290 or X-42 of latest edition or having wall thickness as specified below with plain end and capable of withstanding required test pressure in random length of 4 to 7 meters, including specials, short pieces, bends, reducers, tees etc. made from parent tube.The M.S. Flanges are to be provided 5% of total joints and remaining 95% joints with butt welded joints as detailed below.The MS flanges shall confirm to BIS 6392-1971 (with latest up to date amendments) duly welded in three layers (one inner and two outer) with pipes at both ends as per relevant BIS standards along with nuts and bolts of required sizes confirming to BIS 1364 (with up to date amendments). 3mm thick compressed asbestos fiber/synthetic rubber gaskets confirming to relevant BIS standards. The laying of pipe shall 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 IS:4736 -1986 (with up to date amendments). The welding electrodes shall be as per IS 814:2004 of Advani Oerlikon/ L&T or ISI marked make. The tolerance in thickness and mass/weight of pipe will be accepted as per relevant BIS code. The rates also includes entire carriage of material, flushing, cleaning & hydraulic testing complete to the best satisfaction & direction of Engineer in charge with in all leads and lifts. (Earth work in trenches shall be measured and paid for separately)

MSERW Pipe 200 mm dia With W.T.4.80mm