NIT No-09 EE (SDW) II/ (21-22) Item No. 06

Repairing of Bridge type Secondary Clarifier No. 2 along with other allied works at 45 MGD STP, Okhla by carrying out following works:- Isolating the Secondary Clarifier by operating Sluice Gate and providing metallic sheet & gunny bags to ensure no flow in the FST. Dewatering the stagnated effluent and cleaning the FST with the help of sump pumps and D.G. Set. De sludging and Cleaning the FST for execution of work.

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.

Overhauling of Gear box with required new worm, gear, pinion, bushes as per sample & size, bearings and oil seal as per requirement at site.

Providing of gear oil No. 320. Make: - Servo.

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. approx 15 meter, size 75 x 75 x 8 mm approx 40 meter size 50 x 50 x 5 mm approx 80 meter, size 90 x 90 x10 mm approx 50 meter for strengthening of bridge.

Providing of M.S. nuts & Bolts of different sizes. Make:- GKW/ Unbrako

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 thick

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

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.

DEEPAK ENTERPRISES