PROVISION OF PIPE LINE FOR INTERLINK OF NAUSENA BAGH BOOSTER PUMP HOUSE TO NAUSENA BAGH DOLPHIN HILL AND OLD NAUSENA BAGH OVER HEAD TANK UNDER GE (UTILITY-II) VISAKHAPATNAM

Earthwork excavation in trenches soft/ loose soil not exceeding 1.5 m in width and not exceeding 1.5 m in depth, in all types of soil, for laying pipelines, including dressing of sides, ramming of bottoms, and getting out the excavated material, complete all as specified and directed by the Engineer-in-Charge. Note:- The work shall include necessary shoring, strutting, dewatering if required.

Returning, filling and compacting excavated earth in trenches, including spreading, leveling, watering, and well ramming in layers not exceeding 25 cm thickness, complete all as specified and directed by the Engineer-in-Charge.

Removing excavated material to a distance not exceeding 50 m, in soft/ loose soil including loading, unloading, and depositing the same at a location as directed, at a level not exceeding 1.5 m above the starting point, complete all as specified and directed by the Engineer-in-Charge.

Material and Labour for Plain Cement Concrete (PCC) of mix 1:2:4 (Type B1) using 20 mm nominal size graded crushed stone aggregate, for thrust blocks, anchor blocks, and pipe supports, and other mics work including necessary excavation, centering and shuttering / formwork, mixing, placing in position, compacting by mechanical vibrator, finishing to required line, level and shape, and curing, complete all as specified and directed by the Engineer-in-Charge.

Cutting of existing 300/250 mm diameter CI/DI/MS pipelines in position for insertion of tees, branches, valves, or other fittings, including necessary precautions to avoid damage to the existing pipeline including making proper cuts, edge preparation, alignment for jointing, and all incidental works required for facilitating insertion of new fittings, complete all as specified and directed by the Engineer-in-Charge.

Supply, laying, jointing, testing and commissioning of 250 mm diameter, Class K-9 Ductile Iron (DI) pipe conforming to IS: 8329:2000, centrifugally cast (spun) pressure pipe with socket and spigot ends, suitable for push-on joints, including supply and fixing of rubber gaskets/jointing materials. The pipes shall be provided with external zinc coating with a finishing layer of bitumen, and internal cement mortar lining with bituminous seal coat, complete in all respects, including handling, loading, unloading, laying, alignment, jointing, testing, and commissioning, complete all as specified and directed by the Engineer-in-Charge.

Supply, laying, jointing, testing and commissioning of M.S. ERW pipes conforming to IS: 3589, Grade 330, of 250 mm nominal bore and 6.0 mm wall thickness, including all necessary fittings such as bends, tees, reducers, flanges, etc., as required. The work shall include cutting, edge preparation, welding, jointing, and fixing in position as per site requirements. The pipes shall be painted with one coat of red oxide primer followed by two coats of approved synthetic enamel paint of specified colour. Complete in all respects, including handling, loading, unloading, alignment, jointing, testing, and commissioning, complete all as specified and directed by the Engineer-in-Charge.

Supply, laying, jointing, testing and commissioning of M.S. ERW pipes conforming to IS: 3589, Grade 330, of 200 mm nominal bore and 6.0 mm wall thickness, including all necessary fittings such as bends, tees, reducers, flanges, etc., as required. The work shall include cutting, edge preparation, welding, jointing, and fixing in position as per site requirements. The pipes shall be painted with one coat of red oxide primer followed by two coats of approved synthetic enamel paint of specified colour. Complete in all respects, including handling, loading, unloading, alignment, jointing, testing, and commissioning, complete all as specified and directed by the Engineer-in-Charge.

Supply, laying, jointing, testing and commissioning of M.S. ERW pipes conforming to IS: 3589, Grade 330, of 150 mm nominal bore and 6.0 mm wall thickness, including all necessary fittings such as bends, tees, reducers, flanges, etc., as required. The work shall include cutting, edge preparation, welding, jointing, and fixing in position as per site requirements. The pipes shall be painted with one coat of red oxide primer followed by two coats of approved synthetic enamel paint of specified colour. Complete in all respects, including handling, loading, unloading, alignment, jointing, testing, and commissioning, complete all as specified and directed by the Engineer-in-Charge.

Supply, laying, jointing, testing and commissioning of M.S. ERW pipes conforming to IS: 3589, Grade 330, of 100 mm nominal bore and 6.0 mm wall thickness, including all necessary fittings such as bends, tees, reducers, flanges, etc., as required. The work shall include cutting, edge preparation, welding, jointing, and fixing in position as per site requirements. The pipes shall be painted with one coat of red oxide primer followed by two coats of approved synthetic enamel paint of specified colour. Complete in all respects, including handling, loading, unloading, alignment, jointing, testing, and commissioning, complete all as specified and directed by the Engineer-in-Charge.