URGENT WELDING WORKS BE CARRIED OUT AT LIFT IRRIGATION SCHEME GUIWA OF SUB DIVISION PATTAN

Amount

Repairs to 200 mm diameter rising main at Lift Irrigation Scheme Guiwa: Repairs to the underground 200mm dia MS rising main laid in the orchard at one spot along the steep slope by way of earth excavation using manual labours to carefully expose the pipe to facilitate welding process without damaging pipe by digging a trench around the pipe. The job then involves cutting the cracked/damaged portion of pipe using oxyacetylene gas cutter. Replacing damaged section of pipe with 250 mm dia, 08 mm thick and approx. one feet long pipe. The new pipe shall be carefully cut in two hemispherical portions (top and bottom) to match the profile of rising main and then welding all the circumferential and longitudinal joints through multiple weld runs using superior quality electrodes of Advani/Adore make to ensure strong and leak proof joints. Repairs to the underground 200mm dia MS rising main laid in the orchard at two spots along the steep slope by way of earth excavation using manual labours to carefully expose the pipe to facilitate welding process without damaging pipe by digging a trench around the pipe. The job then involves cleaning of rust around cracked portions of pipe in using steel wire brush.The cracked portions of the pipe shall be rectified with multiple circumferential weld runs. The joint shall be further strengthened using 06 mm thick MS flat of suitable width to cover the cracked portionson the pipe through multiple weld runs using superior quality electrodes of Advani/Adore make to ensure strong and leak proof joints. All the tools and tackles required for completion of job likeD.G set, welding set, oxy-acetylene gas cutter, transport charges, manual labour and skilled welder shall be arranged by the contractor. The job involves dragging of tools and tackles along uphill terrain for execution of job at various spots. After conducting repairs the rising main shall be tested on full load followed by refilling of excavated trenches.

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