Himachal Pradesh Irrigation And Public Health Department Tender

Excavation in foundation, trenches (for pipes & pits) upto all depths in all classification of earth work such as pick work, jumper work, saturated soil including bailing and pumping out water blasting soft/ hard rock or chieselling soft/hard rock where blasting is prohibited in all lifts including trimming and dressing of sides, leveling of beds to correct grade l/c shoring /strutting planking. timbering & dewatering wherever required, stacking the useable & unuseable material /soil separately & after laying jointing & testing of pipes, returning the useable soil in trenches in 15 cm layers Including consolidating of such deposoited layer by ramming & watering & then disposing of all surplus excavated soil /unusable material as directed with in all leads & lifts including restoration unmetalled surfaces to its original condition & including cost of diversion for traffic, night signals, fixing caution boards, crossing over trenches for access to houses, fencing etc. complete in all respects with in all leads & lifts as per directions of engineer-in- charge.

Providing, Laying, jointing and testing of MS pipe bevelled edged conforming to ISO:3183-2007 of following mentioned grade. diameter and wall thickness in trenches having random lengths of 5 7 mtrs including cost of 3-cut bends of required degree and including the cost of anticorrossive treatment in the form of 4 mm thick tape coating of IWL/ STP make on outside surface and bitument paint over two coats of primer on inside surface at manufacturer's works conforming to relevant specification or Galvanisation inside & outside at manufacturer work conforming to IS:4736 (with upto date ammendments). The pipe shall be jointed with circumferencial butt welded joints with electric arc welding with minimum three layers of weld so as to achive the minimum effective thorat thickness and strength of weld conforming to IS: 816-1969 sepecification, by using welding electrodes of 2.50 mm to 6.30 mm of Advani Oerlikon (Ador)- CITOJET / Esab make, conforming to IS:814-1991, at site of work complete in all respects. Each butt welded joint shall be tested with Dye-penetration test (with the kit consisting of 3 sprayes of 250 ML each include (a) cleaner CL-96 (b) Penetrant PT-97 (c) Developer Div-98 of CHECKMATE make complete in all respects, including manual/ mechanical handling of pipes in all leads and lifts to the entire satisfication of Engineer-in-charge.

MS Pipe 250 mm dia conforming to ISO:3183 (Grade L-290) having wall thickness 4.80 mm