NIT NO.25, ITEM NO.04 (2020-21)WW-II

Transportation (To & fro) of 1no. Back Wash Pump and 2nos. motor etc. from Wazirabad Water Works to the firm's workshop and from workshop to wazirabad Water Works which includes loading & unloading with the help of moving crane/heavy manual labour arrangement as per site requirement.

Dismantling of complete pump set by removing of coupling set, bearing hose, body, Impeller, shaft, sleeve etc as per requirement.

Chemical Cleaning of complete body (from inside & outside)of Back Wash pump and its each parts one by one.

Replacement of Bearing as per existing.

Replacement of seals/packings as per existing.

Assembling of pump after cleaning of each part. This includes painting of the Back Wash Pump with one or more coats of spray painting with synthetic enamel paint of approved brand and manufacture to give an even shade. Make of paint: Asian/ Burger/Nerolac

Dismantling of complete 100 HP Motor without causing damage to the winding/Insulation of winding of stator and other parts like rotor, bearings etc.

Complete cleaning, varnishing with suitable class F varnish, baking of stator and rotor winding of motor as per standards.

Replacement of Bearings DE/NDE-6318 as per existing. Make:-SKF/FAG

Providing and fixing of connection leads with thimbles.

Assembling and painting of complete 100 HP motor with one or more coats of spray painting with synthetic enamel paint of approved brand and manufacture to give an even shade as per instruction of engineer-in-charge. Make of paint : Berger/Nerolac/Asian

Fabrication, Supply & fixing of Triplex Sprocket of size 65 Teeth, 1" Pitch as per existing by making all arrangements of labour and machinery etc.

Fabrication, Supply & fixing of Triplex Sprocket of size 25 Teeth, 1" Pitch as per existing by making all arrangements of labour and machinery etc.

Replacement of Triplex Chain of size 1"X11/16" each of 20 feet Length. Make : Diamond/Rollon

Dismantling of gear box's each part and cleaning all the parts carefully without damaging the gear box and repairing/replacement of all the worn out parts which includes main bronze gear and its shaft,4nos. of bearing oil seals and lubricating oil etc. and re-assembling the complete gear box and reinstallation at site with proper alignment.

Providing and fixing of 50mm PVC flexible suction Hose pipe of 30meter roll, heavy duty, crack resistant, green color, bursting pressure-10kg/cm²@30˚C, working pressure- 4.5kg/cm²@30˚C , suitable for delivery of waste water, slurry, sludge by 10HP submersible pump. Make-Jyoti/National.

Dismantling of old pump set after closing of suction/ delivery sluice valves with the help of dead flanges and taking out the complete line upto the delivery header by cutting of nut bolt with gas cutter as require and taking outside from filter house by manual Labour/ chain block arrangement.

Assembling of new repaired pump on foundation and installation of new repaired 100 HP motor by executing other required works to get the job completed and proper alignment of the pump and motor. This includes making all electrical connections in order to make the pump set functional properly.

Fabrication / supply and fixing of new M.S. coupling guard for back wash pump. The approximate size of the coupling guard shall be of the length 18’’ x width 14’’ x height 25’’ Fabricated by M.S. angle of size 35x35x5mm. and M.S.flat of size 12mm x 5mm including cutting, welding, and grinding of edges etc.sizes of angles & flat will be as per existing.

Replacement of M.S suction Taper by removing the existing taper from the line and fitting of new M.S. taper, fabricated as per requirement of new back wash pump and existing system.

Supply of 4X 185 sq. mm PVC insulated & PVC sheathed/,XLPE aluminium armoured conductor 650/1100 voltage grade cable confirming to IS: 7098 (Part-I) 1988. Make: Grandlay/Gloster/DJB approved.

Supplying and making straight through joint with heat shrinkable kit including ferrules and other jointing materials for 4 X 185 sq. mm size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 KV grade as required.

Supplying and making end termination with brass compression gland and aluminium lugs for 4 X 185 sq. mm size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 KV grade as required.

Supply and fixing of street light pole mounting junction box of size 8''x12'' made of polycarbonate material, lockable, weatherproof having suitable size busbar arrangements for 2 incoming and 1 outgoing connection of cable size upto 4 core X 25sqmm all complete for street light pole connection.

Laying of one number PVC insulated and PVC sheathed/XLPE power cable of 1.1.KV grade of following size direct in ground including excavation, sand cushioning, protective covering and refilling the trench etc as required. Above 95 sq. mm and upto 185 sq. mm.DSR 7.1.3 (2018).

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in -charge.DSR no.15.2.1 Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

Laying and fixing of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size on wall surface as required. Above 95 sq. mm and upto 185 sq. mm (clamped with 25/40x3mm MS flat clamp).DSR 7.7.3(2018)

Earthing with copper earth plate 600 mm X 600 mm X 3 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required. (DSR 2018 5.6)

Supplying and laying 25 mm X 5 mm G.I strip at 0.50 metre below ground as strip earth electrode, including connection/ terminating with G.I. nut, bolt, spring, washer etc. as required. (Jointing shall be done by overlapping and with 2 sets of G.I. nut bolt & spring washer spaced at 50mm)5.9

Painting of 3nos. existing installed Backwash Pump sets with foundation after scrubbing all of the old paint from the surface completely along with all the allied accessories also fitting like delivery and suction line with two coats of spray painting by compressor with synthetic enamel paint of approved brand and manufacture to give an even shade as per satisfaction of engineer-in-charge. Make of paint : Berger/Nerolac/Asian

Testing and commissioning of the complete Back Wash Pump set on full load condition. This includes painting of complete Water line from the Back Wash pump to the main Header line of back Wash Pumps.

Jal Dhara Engineers India