MTPS I M I CA CWS II Unit IV Complete dismantling inspection Overhaul including renewal of worn-out pump components and assembling and replacement of damaged rubber expansion joint of CWP 4C of stage II

Amount

Charges for dismantling the cooling water pump motor from motor stool assembly, moving to repair bay and positioning on the spare motor stool assembly. Again lifting and moving towards the cooling water pump, positioning and reassembling the motor after completion of cooling water pump overhaul works.

Charges for dismantling the flexible coupling assembly, lock nut, bearing plate, thrust bearing, cooling coil & its cooling coil water lines and bearing oil pan. Cleaning and inspection of the components, bearing, renewing the worn-out components and reassembling Of Cooling Water pump.

Charges for dismantling of motor stool with pump components of Thrust block, Discharge elbow, Drive shaft, Element - III & II, Intermediate shaft top half coupling, Intermediate shaft, Element – I, pump shaft half coupling, Pump casing, Bearing housing, Pump shaft with impeller, Suction bell mouth assembly, Bell mouth liner, etc Of Cooling Water pump.

Charges for cutting and removal of existing worn-out shaft sleeves (SS) in impeller shaft bottom / impeller shaft top / Intermediate shaft / Drive shaft stuffing box sleeve and assembling of new sleeves by gas flame heating. Of Cooling Water pump.

Charges for lifting of impeller along with pump shaft, setting to the impeller stand, removing the impeller from the pump shaft by using hydraulic jack and gas flame heating over the impeller stem portion and reassembling of existing/new impeller with existing / new pump shaft and finally tightening of impeller lock nut and deflector with S.S. Allen screws and tag welding Of Cooling Water pump.

After completion of overhaul works, charges for measuring overall lift, providing correct lift and locking with lock nut. Alignment of cooling water pump with motor after tightening of motor bed bolts and finally observation and attending of minor defects noticed during trial run of cooling water pump.

Charges for loading and unloading the shafts and bushes . Cooling Water pump Capacity 16,000 M3/ Hr, Single Stage, VMF Model, 1175 KW motor to outside work shop.

Charges for cleaning and taking measurements of drive shaft, Intermediate shaft and pump shaft - 3Nos and checking the trueness of SS shaft of 2.2 meter length [800 kg of weight], machining of sleeve to required size and machining of OD of sleeve.

Charges for transporting of pump components such as element pipes I, II & III, pump casing, bearing housing, suction bell mouth assembly, bearing, shaft sleeve, stuffing box sleeve etc. from stores to site including devolution.(if necessary)

Charges for reconditioning of eroded / porosity of the suction bell mouth assembly by means of cast iron welding electrode over the circumference of 2.82 m of width = 15mm ( approx.) and grinding the seating surface of bell mouth liner in suction bell mouth assembly.(Necessary welding generator for welding works will be provided by Board at MTPS workshop. Welding rods are under contractor’s scope.)(This work to be carried out at the time of overhauling, if necessary)

Charges for cutting and removing the existing corroded & damaged cooling water pump ring guard frame structure fabrication & erection of cooling water pump ring guard frame structure.

Charges for dismantling existing Rubber expansion bellow by loosening of flange bolts 104 Nos, after applying rust remover or heating by cutting gas dismantling the Rubber expansion bellow assembly and bring it to the floor, Size 1600 mm Size.

Charges for cleaning of all loosened bolts & nuts with kerosene, cleaning the top and bottom flanges and allied works.

Charges for loading the new expansion joint to the position, providing the rods, bolts, nuts and tightening all the bolts mounting bolts, nuts and retention plates properly and other allied works.

Charges for drawl of new bellow from Central Stores/ MTPS - I and devolution of retrieved bellows at Central Stores/ MTPS - I (Lorry and crane will be provided by TNPGCL at free of cost)

Charges for applying one coat of rust remover, again cleaning the rust, applying one coat of epoxy red oxide primer and one coat of epoxy high built coal tar one over the other for the immersed pump components such as element pipes, pump casing, bearing housing, suction bell mouth assembly & cooling water pump ring guard etc.

Charges for complete cleaning of pump components above water level with two coats of enamel light / smoke grey, black, green paint over the discharge elbow, thrust pad, motor stool, distance piece, bearing lubricating oil pan (black paint), lubricating oil cooling water lines (green paint) etc.

Cost of Champion Make Nonmetallic gasket 5mm Thick (Size 2000 X 1500 x 5 mm)

Cost of Champion Make Nonmetallic gasket 1mm Thick (Size 2000 X 1500 x 1 mm)

Cost of Gland rope Make : PTFE Size 25mm Square

Cost of M16x125mm HT Bolt with 2 Nos plate washer.

Cost of M16x100mm HT Bolt with 2 Nos washer.

Cost of M 36x210 mm HT Stud 2 Nos Nut with2 Nos washer.

Cost of S.S. Allen cap screws of size: M12 x 70 mm, full thread for Sl.No.5

Cost of welding electrode of size 4 mm x 350 mm, packing style 2 kgs. / pkt Suitable for IS 210, Grade 25 grey cast iron.(6 kgs / pump) for Sl.No.10

Cost of Cutting Gas for Sl.No.2, 3, 4, 5 & 11

Cost of MS welding electrode for Sl.No.11

Cost of Rust Convertor for Sl.No.16

Cost of Epoxy Thinner for Sl.No.16 & 17

Cost of Epoxy red oxide Primer for Sl.No.16

Cost of Coal Tar Black Paint for Sl.No.16

Cost of Enamel light/smoke grey Paint for Sl.No.17

Consumables & T & P's charges for S.No.1 to 17

PREETHI ENTERPRISES (BID ID -1430630)