Description: MTPS I TM UNIT I Replacing of the Defective HRH Stub valve VDAS 122 eroded HRH CRH HP LP bypass drain line to Flash Tank II connected headers and changing the eroded drip line reducers expanders bends of HD 1 2 14 15 Name of Work MTPS I TM UNIT I Replacing of the Defective HRH Stub valve VDAS 122 eroded HRH CRH HP LP bypass drain line to Flash Tank II connected headers and changing the eroded drip line reducers expanders bends of HD 1 2 14 15 and changing the defective eroded plug broken 1 2 drain line vent line valves pipes bends by IBR Non IBR welding in Unit I during Annual Overhaul 2025 26
Details: Labour charges for replacement of valves, pipes, subs, bends and Reducers by Non IBR welding works. Replacing the defective drain line valves or equivalent in Heater drip, condenser air, Auxiliary steam, and drain water lines etc by Non IBR welder. Labour charges for IBR welding for replacing the defective existing HRH stub Size OD 559 x 23.5 mm thickCutting the existing defective HRH line about 1500mm length with stub portion in Unit-I. Preparing edges of the pipes both joints of size 559 X 23.5 mm to suit the new pipe line edges. Transporting the pipeline from the central stores to work spot, positioning the pipe, checking the alignment for welding by IBR welder with TIG and ARC as per IBR specifications. Stress Relieving charges for newly welded HRH Stub welding joints of pipe size: OD 559 mm X Thick 23.5 mm. Scaffolding arrangements and HRH line movements arresting by ‘I’ beam structure arrangements. Checking and cleaning of new valve, Cutting the existing Valve of size OD
Sector: Power Sector