MTPS I TM Unit III Overhauling of TLOCBPs H2CBPs Hydrazine Dozing Pumps Phosphate Dozing Pumps during AOH of 2025 26

Amount

Overhauling of Turbine Lub Oil Cooler Booster Pump Decoupling the pump, disconnection of the pump Decoupling the pump, disconnection of the pump from suction and discharge pipe flanges, dismantling of Bearing housings & bearings at DE & NDE and their inspection & changing the bearings if necessary.(Bearings will be supplied by TNPGCL

Dismantling of Glands from DE & NDE stuffing box, inspection of gland sleeves and replacing if necessary. Opening of top cover of split casing, dismantling of rotor, inspection and measurement of wear rings, renewal of parts if required. Renewal of Gaskets & Gland ropes. Reassembling and positioning of the rotor and closing of top casing. (Necessary spares will be provided by the TNPGCL)

Reconditioning of Pump Top, Bottom Casing & Casing Rings etc., grinding the eroded portions of the casing ring assembly seating areas and other eroded areas in the top & Bottom casings, and casing wear rings and Welding with suitable special electrodes after preheating the casing and rings as per requirement. Dismantling the Suction Strainer from the strainer well, cleaning the strainer, reconditioning the strainer basket if required & renewal of strainer well top cover ‘O’ ring.(Welding Electrodes will be provided by the BOARD)

Checking and correcting the pump alignment with motor and rechecking of pump alignment after connecting the suction & discharge flanges with renewed gaskets. Inspection of couplings, coupling pads and replacing if necessary, Coupling the pump with motor, connecting the pump from suction and discharge pipe flanges, and other such works required for efficient operation of the pump and commissioning. Cleaning & painting the complete pump assembly & Base structure, Painting inside the pump casings and suction strainer well inside area, also the connected pipelines and painting of the pump base concrete structure with Oil Distemper.

Overhauling of Hydrogen Cooler Booster Pump Decoupling the pump, disconnection of the pump from suction and discharge pipe flanges, draining the lub oil from the sump, Dismantling of Suction strainer top cover and the strainer.

Dismantling of the Bearing Covers, Bearing Bracket, Bearing Bracket Lantern, splash ring, Dismantling of mechanical Seal, shaft sleeve and dismantling of the casing cover from the volute casing etc.,

Dismantling the impeller Assembly from the Volute Casing, Inspection and reconditioning the eroded portions of the casings if required, Inspection, Checking measurements and tolerances of the impeller, shaft, impeller wearing ring, casing ring and neck ring and replace all the above if necessary including machining of the wearing rings to the required size and assembling with the impeller suitably

Reassembling and positioning of the rotor assembly and closing of casing cover, reassembling the mechanical seals after inspection and replacement of the spares & sleeves, Assembling the splash ring, Bearing Bracket Lantern, Bearing Bracket, Bearings, Bearing Covers and assembling the half coupling in shaft

Checking and correcting the pump alignment with motor and connecting of pump flanges with renewed gaskets. Inspection of couplings, coupling pads and replacing if necessary, coupling the pump with motor, connecting the pump from suction and discharge pipe flanges, and other such works required for efficient operation of the pump and commissioning. Cleaning & painting the complete pump assembly & Base structure, Painting inside the pump casings and suction strainer well inside area, also the connected pipelines and painting of the pump base concrete structure with Oil Distemper.(Paint under Contractor Scope)

Overhauling of Hydrazine Dozing Pump Decoupling the motor and the liquid well assembly, Draining the oil from the pump, dismantling the speed reduction assembly, dismantling the plunger and the pump bodies and connected flanges.

Dismantling the crosshead piston and connecting rod, removing the well crank plate, removal of sleeve for cross head, removal of the bearings properly, dismantling of worm and worm wheel assemblies, cleaning and inspection of all the above parts for wear and replacement if necessary. Reassembling all the above after overhauling as per the procedure

Dismantling of the pump, plunger assembly, valve and valve seats, inspection and replacing the worn-out parts if necessary and reassembling the pump

Inspection of couplings, coupling pads and replacing if necessary, Coupling the motor and the liquid well assembly, Filling of oil in the sump, Assembling the speed reduction assembly, connecting the plunger and the pump bodies and connected flanges, checking of alignment with the motor and successful commissioning of the pump. Cleaning & painting the complete pump assembly & Base structure, painting the connected pipelines and painting of the pump base concrete structure with Oil Distemper . (Paint under Contractor Scope)

Decoupling the motor and the liquid well assembly, Draining the oil from the pump, dismantling the speed reduction assembly, dismantling the plunger and the pump bodies and connected flanges.

Dismantling the crosshead piston and connecting rod, removing the well crank plate, removal of sleeve for cross head, removal of the bearings properly, dismantling of worm and worm wheel assemblies, cleaning and inspection of all the above parts for wear and replacement if necessary. Reassembling all the above after overhauling as per the procedure

Dismantling of the pump, plunger assembly, valve and valve seats, inspection and replacing the worn-out parts if necessary and reassembling the pump

Inspection of couplings, coupling pads and replacing if necessary, Coupling the motor and the liquid well assembly, Filling of oil in the sump, Assembling the speed reduction assembly, connecting the plunger and the pump bodies and connected flanges, checking of alignment with the motor and successful commissioning of the pump. Cleaning & painting the complete pump assembly & Base structure, painting the connected pipelines and painting of the pump base concrete structure with Oil Distemper. (Paint under Contractor Scope)

Enamel paint

Shaft Sleeve for TLOCBP Pump

Charges for Consumables and T&P’s item Sl.No:1 to 17