TTPS Mech II TM I Unit I II III Servicing of defective performance deteriorated Main condensate Pump and Drip pump for the year 2023 24

Servicing of defective / performance deter deteriorated main condensate pumps. This work involves removing the pump half coupling, dismantling of bearings and Mechanical Seal, dismantling & Lifting the pump stool, Lowering the pump from the stand to floor and dismantling the stage casings, Measuring the neck rings, impellers, rail co bushes, impeller distance sleeves and intermediate bearing bushes, removal of worn out neck rings, rail co bushes, intermediate bushes and fixing the new ones, assembling the pump stages and inspection, rectification if required and reassembling of Mechanical Seal, Preparation and conduction of hydraulic test in the reconditioned stages after reassembling to ensure the tightness of 'O' rings at 1.5 times of operating pressure 20KSC and fixing in the stand, assembling bearing housing after placing the pump stool, assembling the thrust pads, guide bearing, float checking and assembling the coupling. Transportation of M.C. Pumps Stages consisting of Casing, Impellers, Neck rings and Bushes to Out side work shop, Machining the Neck rings, bushes to the required tolerance and return back to site

Caisson inspection, rectification, renewal of parting plane gasket and substitution of MC Pump. This work involves Lifting away the floor grill in 13.5mtr floor and rest in safe place, providing temporary handrails all around the well, decoupling the motor from the pump stool, removing the pump half -coupling, bearing housing and pump stool, dismantling the delivery flange and lifting the pump and dismantling the 6th stage pipe line if necessary and refitting it to the new pump, Welding the cracked/punctured area and strengthen the other welding joints, Vacuum tightness checked after fixing the dummy in the caission and dismantling the suction strainer and cleaning. Removal of parting plane gasket in mc pump, placing the new pump on the caission and connecting the discharge line. Aligning the pump with motor and commissioning of the pump, putting back the floor grill.

Servicing of defective/ performance deteriorated Drip Pump. This work involves Removing the pump coupling, dismantling of bearings and Mechanical Seal, dismantling the stage casings, Measuring the neck rings, impellers, impeller distance sleeves. Removal of worn out neck rings, and fixing the new ones, Assembling the pump stages and inspection, rectification if required and reassembling of Mechanical Seal, Preparation and conduction of hydraulic test in the reconditioned stages after reassembling to ensure the tightness of 'O' rings at 1.5 times of operating pressure 15 KSC, float checking and assembling the coupling, Transportation of Drip pump Stages consisting of casing, impellers, Neck rings and bushes to the workshop, Machining the Neck rings, bushes to the required tolerance and return back to site

Replacement of Heater drip pump

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