REPAIR/REPLACEMENT AND MAINTENANCE OF STP AT ICGS VISAKHAPATNAM AND FIREM ALARM SYSTEM AI ICGS KAKINADA UNDER GE(I) CG VIZAG

M&L for dewatering, cleaning and disinfection of equalization tank of 50 KLD Sewage Treatment Plant (STP) including removal of sewage water, sludge, and solid waste using suitable sludge pumps or industrial vacuum machines. The internal surfaces of the tank shall be thoroughly scrubbed using steel wire brushes and cleaned with high-pressure water jet to remove all dirt, algae, moss, grease, and biological growth adhered to the tank surface includes careful dismantling, inspection, repair, and re-fixing of disc-type air diffusers installed at the bottom of the equalization tank, including cleaning of diffuser membranes, checking for cracks or clogging, replacing damaged parts, tightening/realignment of air piping connections, and ensuring proper functioning after reinstallation. All necessary tools, replacement parts and technical labour shall be included in the quoted rate. After cleaning, the complete internal surface shall be sterilized using bleaching powder or approved equivalent disinfectant in appropriate concentration to ensure hygienic and safe conditions. The work includes provision of all tools, plants, labour, materials, safety equipment (such as gloves, masks, boots, safety harnesses, etc.), and disposal of all removed waste and sludge to a location as indicated by the Engineer-in-Charge complete all as specified and directed. Note: If the work is not found satisfactory by the Engineer-in-Charge, it shall be re-executed at no extra cost to the department. The entire responsibility for the safety of laborers during confined space entry and sludge handling shall rest with the contractor.

All as per item No. 1.00 above but for SBR Tank with Fine bubble diffuser complete

All as per item No. 1.00 above but for Decenting Tank with no diffuser complete

All as per item No. 1.00 above but for Sludge Tank with no diffuser complete

M & L for cleaning of Treated water tank of 50KDL STP by pumping out the accumulated water at the bottom and removing the complete silt from the sump and depositing and levelling as directed and the cleaning the sump with bleaching powder and wire bursh after scrapping the walls and bottom of the sump completely without disturbing the water supply to the area inlcuding painting the details such as sump capacity, date of cleaning on the sump wall complete all as specified and directed . Note: Pump to empty the water from bottom of sump and any other material/ equipment required shall arranged by contractor. Cost of same shall deemed to be in quoted rate.

M&L for complete servicing of 5 HP air blower & pump operating at speed 1160 RPM and pressure 0.4 kg/cm², including dismantling, cleaning of casing, impellers, and shaft using suitable cleaning agents, thorough inspection of internal components, tightening of foundation bolts, alignment check between motor and blower shaft, replacement of air filters & Bearing, greasing of bearings with appropriate grade lubricant, and replacement & adjustment of drive belt. The work shall also include draining of used gear oil from blower gearbox, flushing, and refilling with fresh Oil of sutaible Grade incl oil seal. After servicing, the blower & pump shall be test-run under load to check vibration, pressure buildup, RPM, noise, and temperature, and the unit shall be handed over in proper working condition. The rate includes cost of labour, tools, cleaning materials, gear oil, greases, safety gear, and minor consumables (nuts, bolts, oil, bearing, filter media etc.) complete all as specified and directed.

M&L for complete servicing of 1.5 HP filter pump with coupled electric motor, including dismantling of pump and motor assembly, opening of casing, cleaning of impeller, shaft, and internal parts using suitable cleaning agents, inspection of shaft alignment & replacement of mechanical seal, and bearings.Work includes tightening of fasteners, replacement of gland packing or seal, greasing/lubrication of motor bearings, checking of pump-motor alignment, and reassembling the unit. The system shall be test-run under operating conditions to verify flow, pressure, noise, and temperature. The contractor shall provide all labour, tools, consumables (grease, oil, minor fasteners, bearings), cleaning materials, and safety equipment complete all as specified and directed.

All as per item No. 7.00 above but for Slugde pump with motor upto 01HP complete.

M&L for complete servicing of submersible sewage transfer pump upto 5HP including safe removal of pump from the sump, thorough external and internal cleaning to remove grease, sludge, and debris using suitable degreasers, inspection of impeller, motor body, seal housing, and cable gland, checking of insulation resistance of the motor winding, replacement of worn-out O-rings/gaskets, bearings, and minor repairs to terminal connections. work includes testing the pump for proper operation after reinstallation, checking for vibration, leakage, discharge pressure, and electrical parameters. All tools, labour, safety gear, and consumables (grease, minor fasteners, cleaning materials) shall be included in the rate complete all as specified and directed.

M&L for servicing of open well submersible pump upto 05 HP capacity installed inside the treated water tank, including safe removal of the pump with connected delivery pipe and cable, cleaning of pump body, impeller, and suction strainer to remove silt, sludge, or scale deposits, replacment of mechanical seals, bearings, and cable gland, testing of motor insulation resistance and replacement of minor parts like O-rings, nuts, bolts, and fasteners. After servicing, the pump shall be reinstalled properly, aligned, connected with delivery line, and test-run to ensure smooth operation, flow, and pressure. The rate includes cost of labour, tools, lifting arrangement, safety gear (gloves, boots, harnesses), minor consumables (grease, sealing tape, bearing etc.) complete all as specified and directed.