MTPS I BM Unit IV Rotating parts Removal of deteriorated and peeled off insulation and renewal with new insulation materials in ID fans 4A and 4B outer casing etc

Amount

Cost of Insulation material for the flue gas duct for 1 sq mtr. LRB wool mattress size: 1.62m X 1.22 m X 60 mm thick confirming to IS 8183, 93. Density: 150 Kg/m3 both side 075 inch X 23 SWG G.I wire knitting with machine stitched and laid in HDPE.

Cost of GI sheet 0.63 mm thick with 120gsm/sq m of Galvanizing coating.

*Cost of 6 mm dia pin length 200mm (MS) 9 pins/ m2 (0.4 Kgs/ m2), * MS outer retainer plate of size 70x70x2 mm-18 nos/ m2 * GI casing support of size 65x2x650 mm - 4 nos/ m2, * Consumable like screw36 nos/ m2,binding wire, * Fabrication charges for 1Kg as per PWD schedule of rates 2020-21=61.50/-

Charges for Removal of insulation wool mattress and applying new wool mattress after cutting to the required contour shape for 1 layer

Charges for Removal of deteriorated G.I sheets and fixing the new G.I. sheets after making grooves and tightening with lock screws (1/4”)

Charges for Removing the GI strips and retainer plates and providing back with new strips and retainer plates.

Charges for Cleaning of released wool from work spot: This work involves complete collection of released waste wool, debris and unwanted insulation materials from the work spot gathered in one place and clear transport for away from the site.

Charges for fixing and removing the scaffolding arrangements for insulation work.

Charges for transporting of 6mm M.S./Checkered plates from Central Stores/MTPS-I to Boiler area, cutting into required size, leading, lifting, positioning on the eroded top portions of the flue gas ducts and welding the same including the cost of welding electrodes.