NIT No. 07 Item No. 12 (2025-26) (Re-invite)

Dismantling of Motor, Gear box from the foundation after disconnecting all electrical connections from the panel, opening the coupler & fan from the shaft & cutting rusted nut-bolts etc. and taking out all from the deep well.

Dismantling of complete M.S jaal of the two well This also includes the M.S jaal of size 51 ft. x 11 ft. approx. for motor foundation area along with complete jaal of two raw water well of clarifier no11 &12 and chequered sheet and flash mixers all complete and deposition of all the scrap material to scrap yard as per direction of Engineer-in-charge.

Dismantling of rusted worn out Motor platform/foundation from the flash mixture top chamber. The job includes removing of existing electrical panel, removing of rusted grill & cutting of rusted "C" channel with the help of gas cutter & taking it out with the help of heavy-duty manual labour arrangement etc.

Safety equipments like gum boot, oxygen cylinder safety belt and safety helmet etc. all arranged to the safety of workers as the work has to be done in the top of flash mixture chamber. The same includes loading, unloading & cartage charges etc.

Temporary arrangement of platform around the flash mixer well to execute the work including tool & tackles, plates, balli, jacks, chain block, chains etc. to & fro and its loading & unloading & its complete dismantling after completion of work

Structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete. DJB SOR 47.1.2

Fabrication of new structure of Motor platform/foundation for the flash mixture top chamber made out from 200mm C-channel for mounting of motor & gear box of flash mixture. The size of frame is 4ft X 2.5ft approx. the job includes fixing of 8mm M.S. sheet on top of C-channel M.S structure.

Fixing of M.S. structure on flash mixture top chamber. The job includes loading & unloading of complete frame with the help of heavy manual labour arrangement

Overhauling of flash mixer motor and gear box including replacement of all gaskets, hardware items etc. all required during renovation must be replaced and gear box shaft for fixing of pulley as per site requirement

Making and supply of G.M/S.S bush with bush holder as per sample.

Making and supply of S.S shaft of size 50 mm x 2.45mtr as per sample.

Making and supply of S.S coupler for joining of gear box with main shaft.

Making and supply of fan suitable for above shaft as per sample.

Providing & fixing of I-section beam of inside deep well for holding the G.M/S. S bush with bush holder for free movement of vertical shaft. The job includes fixing of M.S plates at both ends of I-section beam with the help of anchor bolts etc. as per site requirement.

Providing and fixing of M.S angle inside deep well for holding the G.M/S. S bush with bush holder for free movement of vertical shaft. The job includes fixing of M.S plates of size as per required at both ends of .S. angle with the help of anchor bolts etc.as per site requirement.

Re-fixing of all items like motor, gear box, shaft, plumber block/ pulley etc. & making proper alignment for smooth operation of the unit.

Minor Civil Work and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement for R.C.C. work including straightening, cutting, ending, placing in position and binding all complete up to plinth level. 1:1½:3(1Cement:1½coarsesand(zone-III):3graded stone Aggregate 20mm nominal size) as per DJB SOR 46.1.2

Renovation/repairing of modular/combinable polycarbonate insulated outdoor type feeder panel housing (Properties of housing-shock proof, weatherproof, rustproof, UV resistant, halogen free, silicone free, rrosion proof, protection class: ll safe, IP 65 rating, totally insulated, having internal embedded gasket with provision of cable entry through glands. The panel board should have following control panel MCB and accessories etc. complete with connections & Interconnections etc. as required. The Panel is consist of the followings:-a) 18 A, TP, power contactor (MNX 18, L&T) - 1 No.(b) 1 NO + 1 NC side mounting add-on aux. contact block (L&T)-1 No. (c) 6-10 A thermal over load relay (L&T) -1 No. (d) Single phasing preventer (L&T) - 1 No. (e) 16 A, FP, 10 kA, MCB (L&T)-1 No.(f) LED indicating lights red, Yellow, Blue& green (L&T) - 6 os.(g) Push Button with element (L&T) - 2 Nos. (h) 6 A SP MCB (L&T)-1 No. (i) 32 A, 3 way open connector - 1 No.(j)Digital 3 phase VAF meter (L&T)-1 No.(k)50/5 A, 5 VA, 5.0 class current transformer (AE)- 3 No. (1)32 A, 3 y open connector-1 No. Make-All DJB approved applicable. Make the panel fully functional after rectifying the fault by replacement of above components whichever is needed in the panel.

Painting of gear box, motor, foundation, electric panel mounting and M. S Jaal on Well, etc. and all other MS structure new with 2 coats of primer and then 2 coats of synthetic enamel paint on new and old structure of suitable colour & testing & commissioning of complete flash mixer.

ASHMITA ENGINEERS AND TRADERS (BID ID -1610888)