NIT No-11 EE (SDW) II/ (22-23) Item No. 14

Isolating the Primary Clarifier by operating Sluice Gate and providing metallic sheet & gunny bags to ensure no flow in the PST. Dewatering the stagnated effluent and cleaning the FST with the help of sump pumps and D.G. Set. De sludging and Cleaning the PST for execution of work.

Safety arrangement as per NHRC guidelines for execution of the work safely.

Dismantling of centre control Gear Box along with motor, cutting of fasteners with the help of Gas Cutter and shifted these to a safe workable place.

Making temporary platform with required pipe and angle as safety measures around the bridge as per site requirement at site.

Dismantling/ Cutting of worn out/ corroded M.S. sheet of walk way, angle Iron along with bottom of bridge with the help of gas cutter, all tools & tackles with safety equipment as per requirement at site.

Providing of different type M.S. Angle Iron of size 65 x 65 x 8 mm., size 75 x 75 x 8 mm ,50 x 50 x 6 mm, 90 x 90 x10 mm etc. for strengthening of bridge.

Providing of different type M.S. channel Iron of 100x50, 150x75 mm etc. for strengthening of bridge.

Providing of M.S. nuts & Bolts of different sizes as per site requirement.

Labour charges for fixing of different type of angle iron in bridges making hole for tightening of nuts & bolts i/c with welding works & cutting works etc as per requirement of site.

Providing the Tie Road for supporting the scraper arm.

Fixing of above Tie Road on both side of Central Drum for Holding the Scrapper Bridge with adjustment Assembly.

Providing of M.S chequered sheet having 8 mm thickess for walkway.

Fixing of above M.S. chequered sheet on the walkway bridge by cutting welding in required size.

Renovation of centre drum i/c replacement of the damaged stiffeners of the drum and making required patch work with 6 mm thick M.S. sheet approx. 15 sq. mtr. with the help of electric welding as per site requirement.

Repairing of damaged vertical structure of central drum, M.S. angle iron of size 150x150x8mm and 75x75x8mm by welding & providing nut bolt etc as per requirement at site.

Re-Fixing of centre control Gear Box along with motor, with new fasteners with the help of required material etc.

Providing of Red oxide metal primer in 20 kg packing. Make: - Asian/Nerolec/Burger.

Providing of synthetic Enamel paint in Black Colour in 20 Ltrs. Make: - Asian/Nerolec/Burger

Providing of synthetic Enamel paint in deep orange Colour in 20 Ltrs. Make: - Asian/Nerolec/Burger

Painting of the complete structure after removing of rust with brush with one coat of primer & two coat of enamel paint i/c petty items.

Testing & Commissioning of complete unit on No Load/Full Load after removing gunny bags and temporary platform form FST.

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