Details: spillway crest radial gate and its assembly design, drawing, fabrication & supply of trunnion girder, trunnion hub, bracket and pin suitable for spillway crest radial gate of vent size 12100x4410mm as per is 4623 : 2000. the trunnion girder made of is 2062 : 2011 – e 250 grade mild steel. the turnion hub shall be made of steel casting as per is 1030. the pin shall be made of ss 420 grade as per is 1570. the welding shall be done as per standard procedures and the burr and slag shall be removed by grinding the top of welds. a good weld is as strong as the base metal. a suitable electrode shall be chosen and welded with a good welding equipment and a trained welder. all non – metallic substances shall be removed in the weld joints before commencement of welding. the cost includes cost of all materials, cost of consumables like welding rods, grinding wheel, oxygen & acetylene gas, diesel & oil for generator, process charges like gas cutting, welding, labour charges for loading, lifting
Sector: Water Resource Department