TTPS Mech II BM Unit I Boiler Cleaning of I pass Furnace II pass and Boiler structure by water washing disposal of scrap debris after overhaul applying refractory at rear arch final super heater during the 2025 2026 overhaul

DRUM overhauling: Charges for inspection of boiler drum, cleaning of internal components, patch welding of separation chamber cracks, overhauling of phosphate dozing line NRV etc including consumables

Charges for water washing of boiler inter-pass area (area inclusive of re-heater coils, water wall Screen tubes, S.H Screen tubes etc.)

Charges for water washing of boiler I pass water walls inclusive of gooseneck bends area through peepholes.

Charges for air washing of boiler II pass

Charges for water washing of boiler II pass

Charges for removal of heavy lumps of shoot deposited on water walls and platen super heater coil tubes by using wire brushes / scrapping with assistance of sky climber.

Charges for removal of heavy lumps of soot deposited on boiler Inter pass Re heater coil by using wire brushes/ scrapping with assistance of sky climber.

Charges for shifting the sky climber inside the furnace for access of Platen water wall, platen Super- heater coils, super heater roof and water wall areas:

Charges for transporting of 1 No. sky climber from Boiler maintenance stores to site, erection of sky climber for cleaning of water wall in all sides of Boiler and removal of sky climber, return back to stores after completion of works.

Charges for leading lifting of scaffolding materials and erection of platform at S.H/W.W screen tube area and ‘S’ panel area to conduct Boiler tube thickness survey and tube rectification work and removal of platform and scaffolding

Charges for providing GI sheet/ MS sheet shield for 10.5 mt length inside Boiler inter pass Re Heater area to protect material falling from RH coil slop in to Boiler first pass and dismantling after completion of work and arranging polythene covers to Sky climber motor, sky lock etc. to protect damage from water and dust, cleaning falling soot particles from Sky climber bed during carrying out Jet cleaning work

Charges for providing refractory over the screen tube area, steam cooled wall front slope and other areas including transportation of refractory from stores/Pocket store and water from 0 m level to the required elevation, etc complete

Charges for cleaning of boiler structure up to 56M EL by water jet washing on all four sides

Charges for cleaning & Water washing the boiler ground floor area after over hauling of Boiler.

Charges for checking hinges, locking arrangements, reconditioning of the doors and providing asbestos ropes to all manhole door and peephole doors.

Charges for fin welding by cleaning, surface preparation and welding.

Charges for removal of cladding sheet, insulation wool, cleaning the surfaces, transportation of required cladding sheet, wool and fixing materials to site and erection of hooks, fixing wool mattress, retainer plate, binding wire, applying refractory if necessary, fixing ribbed cladding sheet or aluminium/GI plain sheet after grooving and fixing with retaining screw. Charges, including all consumables and T&P’s etc.,

Charges for supply of Non- Metallic high Asbestos Fibre jointing graphite temp-600OC and Pressure 160Kg-Sq.Cm-2000 x 1500 x 5 mm Champion make, Style-54

Charges for supply of Fire crete castable refractory cement in HDPE Bags

Charges for supply of white dry asbestos packing rope

Charges for supply of Insulation wool confirming to IS8183

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