Replacement of First Two and half beds of converter in SO2 Acid plant, FACT-UC

Fabrication, Dismantling and Erection of first two and half beds of Converter at SO2 Acid Plant FACT-UC : Scope of Work includes marking, cutting & rolling of plates, welding, fabrication, dismantling, erection and testing (All tests as per design codes and standards including Lime-kerosene test on shell to roof plate welding joint, DP testing on all root welds , radiography test on welded joints etc.) of SO2 Converter with all manholes, filling branches, division plates, inner rings, outer rings, stiffeners, pressure drop lines, etc. in SO2 Acid Plant FACT-UC as per scope of work detailed in Special Conditions of Contract and tender drawings attached. Converter shell ID : 4200mm Shell Plate thickness : 12 mm Division/Baffle plate thickness : 6 / 8 mm Other parts plate thickness : 6 - 20 mm Material : SA 204 Gr.B Loading / unloading and transportation of free issue materials from any of the FACT stores or from any site of FACT to work site shall be under the scope of contractor. Scrap cutting & removal to Material Conservation Yard shall be under the scope of the contractor. All heavy equipment required for this work shall be under the scope of contractor.

Fabrication, Dismantling and Erection of first two and half beds of Converter at SO2 Acid Plant FACT-UC : Scope of Work includes marking, cutting & rolling of plates, welding, fabrication, dismantling, erection and testing (All tests as per design codes and standards including Lime-kerosene test on shell to roof plate welding joint, DP testing on all root welds , radiography test on welded joints etc.) of SO2 Converter with central duct, roof and a portion of 2nd bed inlet duct in SO2 Acid Plant FACT-UC as per scope of work detailed in Special Conditions of Contract and tender drawings attached. Converter shell ID : 4200mm Roof Plate thickness : 8 mm Material : ASTM SA 240, TYPE 304 H Central duct thickness : 8 mm Material : AISI 304 A 240 2nd Bed Inlet duct(900mm ID) thickness : 8 mm Material : AISI 304 A 240 All SS to CS welding shall be done using E309-16 welding electrode. Loading / unloading and transportation of free issue materials from any of the FACT stores or from any site of FACT to work site shall be under the scope of contractor. Scrap cutting & removal to Material Conservation Yard shall be under the scope of the contractor. All heavy equipment required for this work shall be under the scope of contractor.

Fabrication, Dismantling and Erection of bellmouths: Scope of work includes cutting, fabrication, welding, dismantling and erection of all bellmouths upto first two and half beds of Converter at SO2 Acid Plant FACT-UC as per scope of work detailed in Special Conditions of contract and tender drawings attached. 1st & 2nd bed outlet bellmouth thickness : 8 mm Material : ASTM SA 240, TYPE 304 H All other bellmouth thickness : 8 mm Material : AISI 304 A 240 Loading / unloading and transportation of free issue materials from any of the FACT stores or from any site of FACT to work site shall be under the scope of contractor. Scrap cutting & removal to Material Conservation Yard shall be under the scope of the contractor. All heavy equipment required for this work shall be under the scope of contractor.

Fabrication, Dismantling and Erection of special type expansion bellow on central duct at SO2 converter top: Scope of work includes cutting, fabrication, welding, dismantling and erection of special type expansion bellow on central duct at converter top in SO2 Acid Plant FACT-UC as per scope of work detailed in Special Conditions of contract and tender drawings attached. Size : 980mm ID & thickness : 8 mm Material : AISI 304 A 240 Loading / unloading and transportation of free issue materials from any of the FACT stores or from any site of FACT to work site shall be under the scope of contractor. Scrap cutting & removal to Material Conservation Yard shall be under the scope of the contractor. All heavy equipment required for this work shall be under the scope of contractor.

Dismantling, Fabrication and Erection of structurals: Scope of work includes cutting, fabrication, welding and painting of all types of supports, columns, beams, ladders, platforms & walkways etc. required for Converter in SO2 Acid Plant FACT-UC as per scope of work detailed in Special Conditions of contract and tender drawings attached. Loading / unloading and transportation of free issue materials from any of the FACT stores or from any site of FACT to work site shall be under the scope of contractor. Scrap cutting & removal to Material Conservation Yard shall be under the scope of the contractor. All heavy equipment required for this work shall be under the scope of contractor.

Removal and fixing back of tray beams of first, second and third beds of SO2 Converter. All tray beams of first and second beds shall be removed before dismantling of the converter and shall be refixed after the erection of new beds of converter. Material - Cast Iron Loading / unloading and transportation of free issue materials from any of the FACT stores or from any site of FACT to work site shall be under the scope of contractor. All heavy equipment required for this work shall be under the scope of contractor.

Removal and fixing back of tray plates/grids of first, second and third beds of SO2 Converter. All tray plates/grids of first and second beds shall be removed before dismantling of the converter and shall be refixed with proper caulking after the erection of new beds of converter. Material - Cast Iron Loading / unloading and transportation of free issue materials from any of the FACT stores or from any site of FACT to work site shall be under the scope of contractor. All heavy equipment required for this work shall be under the scope of contractor.

Painting (External surfaces of Shell): The following painting scheme shall be followed for painting the external surfaces of SO2 Converter Shell: • Primer - Two coats of Red Lead primer (The specified primer and necessary accessories & consumables required for painting including scaffolding shall be under the scope of the contractor)