NCTPS I SE MI circle Boiler Maintenance Division Annual Overhaul works for the year 24 25 Specification No 145 24 25

Amount

Boiler First Pass / Inter pass. Charges to carryout tube thickness survey and identifying the weakened tube for renewal including charges for ultrasonic thickness gauge and consumables.

Boiler First Pass / Inter pass. Charges for Cleaning by buffing water wall tubes for tube thickness survey. Including consumable and hire charges for T&P's.

Boiler First Pass / Inter pass. Charges for renewal of water wall tube of Dia 63.5 X 5.5 mm (above 44.5 mm OD) inclusive of transportation, cutting of defective tubes, edge/spool preparation, welding with IBR welder and assisting for hydraulic test. Including consumable and hire charges for T&P's.

Charges for fin welding: Charges for fin welding by cleaning, surface preparation and welding. Including consumable and hire charges for T&P's.

DRUM OVERHAULING: Charges for opening the drum manhole doors, cleaning & inspection of drum internals, flushing of phosphate dosing line by cutting and welding, cleaning and inspection of screen dryers, and providing new gasket for manhole doors. Including consumable and hire charges for T&P's.

DRUM OVERHAULING: Checking of weld cracks in separation chamber and welding the cracks with IBR welder. Including consumable and hire charges for T&P's.

DRUM OVERHAULING: Dismantling the turbo separator (58 Nos.) for cleaning and refixing in position. Charges including consumable and hire charges for T&P's.

DRUM OVERHAULING: Charges for rectification of Boiler drum separators by reconditioning erosion/ crack, alignment of fins and replacing worn out mounting fastners. Including consumable and hire charges for T&P's.

Charges for cutting, edge preparation and welding of 1” pipe line, tee elbows, bends in Boiler pressure parts by IBR welder etc. at joints. Including consumable and hire charges for T&P's.

Charges for leading, lifting and arranging platform and scaffolding wherever required in the boiler and dismantling after completion of work.

Charges for renewal of eroded boiler tubes at SCSW & Steam cooled spacer tube of size 44.5mm OD inclusive of transportation, cutting of defective tubes, edge/spool preparation, welding with IBR welder and assisting for hydraulic test. Including consumable and hire charges for T&P's.

Arc filling Grinding of Boiler tubes for Arc filling of size 150 x 25 M² area and IBR Welder for arc filling of area 150 x 25 M² by 3 Layers. Including consumable and hire charges for T&P's.

Charges for dismantling of Scanner air and Ignitor air fan end cover plate, motor, impeller etc overhaul works and assembling the same fan and normalizing. Including consumable and hire charges for T&P's.

Dismantling and inspection of delivery side flap gate of scanner air fan for free operation and rectification defects if of scanner air fan for free operation and rectification defects if any and reassembling the same with new gasket. Including consumable and hire charges for T&P's.

Over hauling of suction and delivery air dampers of scanner air fan by dismantling, cleaning, inspecting of operation, and replacing the flange gasket. Including consumable and hire charges for T&P's.

Over hauling of emergency air damper of scanner air fan system by dismantling, cleaning, inspecting of power cylinder operation. Including consumable and hire charges for T&P's.

SAHIRA ENTERPRISES (BID ID -1118595)