Providing, installation, testing and commissioning of pumping machinery at P/stn. Oddha under WSS Odha under Languising Proect

Amount

Providing, installation, testing & commissioning of pumping machinery i.e. 5000 GPH x 200 mtrs. head H.C. Pump sets (01 nos.) & 3000 GPH x 100 mtrs. head Submersible Pump sets (01 nos.) along with all other allied electro-mechanical works at T/well cum P/stn. Oddha The complete job involves the following:

Providing of HC / Submersible Pump sets: Providing of 01 nos. HC pumping units of parameters 5000 GPH x 200 mtrs head each accompanied with test certficate & 01 nos. submersible pump sets of parameters 3000 GPH x 200 mtrs head each along with all connected accessories conforming to relevant BIS codes as per following: (a) Acceptable make for HC Pump: Mather & Platt / Kirloskar make (b) Acceptable make for Motor: Kirloskar / Crompton / ABB make compatible with the above provided pump to which it is to be coupled. (c) Acceptable make for submersible pump sets: KSB / Kirloskar / Calama.

Foundation blocks / Installation: Installation, testing & commissioning of 5000 GPH x 200 mtrs. head H.C. Pump sets (01 nos.) at T/well cum P/stn. Oddha The job for each HC pump set involves the following - Carriage of pumping machinery from to work site. Construction of reinforced cement concrete foundation blocks of size 1800 mm x 900 mm x 900 mm (LxBxD) inside the pump room for installation of the pumping units by excavation of pits of required dimensions, removal of the excavated material and disposing off the same outside the pump room at suitable place as per site conditions. Providing & laying of stones masonry in the already excavated pit 40 mm and ramming properly, laying of one layer of 1:3:6 concrete mass 15 mm thick before laying of RCC foundation block. Fabrication/ providing of steel foundation bolts along with hexagonal nuts & washers for the foundation bolts – 06 nos. of suitable thickness and 900 mm in length for the pumping unit having threaded portion at one end and anchor at the other end. Fabrication of steel reinforced cubical structure of requisite size for the foundation block fabricated out of T.M.T. steel bars of 10 mm thickness, by way of cutting the steel bars of required length and placing in position at proper spacing longitudinally and transversally and binding them properly so that internal cube meshes of 6” size are formed. Lowering of reinforced steel mesh structure in the pit and then placing the base frame of the HC pump set over it, making proper leveling and alignment of the base frame over this steel mesh structure, placing the threaded end of the foundation bolts in upright vertical position after passing through holes of the base frame. Welding of the foundation bolts with the steel mesh structure at various spots and then fastening the base frame by tightening of the nuts of the foundation bolts, simultaneously ensuring proper leveling and alignment of the base frame. Providing and laying of cement concrete block including form work, machine mixing, laying and compaction with vibrator using reinforced cement concrete in mixture of 1:1-1/2: 3 ratio including binding chemical up to top level from inside the base frame and up to bottom flange of base frame from outside of base frame, proper curing of the block and then plastering of the above GL portion of the block with proper drainage system. Installation of the new HC pumpset on the foundation block by way of proper placing of pump set and prime mover over the base frame. Providing and fixing of base bolts with nuts and washers, leveling of pump and motor in proper alignment by way of adding shims etc. so that pump and motor can be coupled without any offset. Coupling the pump with motor by proper fixing of coupling pulley set and tightening them properly. Providing & fitting of new graphite gland packing in the pump gland. complete job.

Suction / Delivery systems: Fabrication, laying & installation of the 100 mm dia suction system of HC pump for connecting suction of each pump to the suction manifold. .The job includes providing & cutting the 100 mm dia G.I. pipe in various required lengths as per alignment / layout condition of the suction line at site, jointing the suctions of pump to the suction manifold. Providing & fitting of heavy duty M.S. flanges, MS bends / nipples/ elbows as per suction bend size of pump, their proper welding & flanging with nuts, bolts, washers and rubber insertion sheets etc. Providing & fitting of heavy duty ISI marked 100 mm dia C.I. sluice valve on the suction line with nuts, bolts, washers and rubber insertion sheet etc at appropriate place.Fabrication and laying of delivery manifold as per requirement. Fabrication, laying & installation of 80 mm dia delivery system of HC pump for connecting the delivery of each pump with the delivery manifold. The job includes providing & cutting the 80 mm dia G.I. pipe in various required lengths as per alignment / layout condition of the delivery line at site, jointing the delivery line of each pump to the delivery manifold. Providing / fitting of heavy duty M.S. flanges, MS bends / nipples/elbows as per delivery system bend size of pump, their proper welding & flanging with nuts, bolts, washers and rubber insertion sheets etc. Providing & fitting of heavy duty ISI marked 80 mm dia C.I. sluice valve & heavy duty ISI marked 80 mm dia C.I. reflux valve on the delivery line with nuts, bolts, washers and rubber insertion sheets etc at appropriate place. Job also involves dressing of the openings of suction & delivery lines created in the wall of the pump room with cement concrete mixture. Testing and commissioning of pump set on load after installation of the electrical system at site. The job includes checking of alignment during operation of pump set, abnormal sound during operation, checking of leakage on suction and delivery side and plugging of same thereafter providing and fitting of nuts and bolts, rubber insertion sheet wherever required. Painting of the newly laid suction and delivery manifolds / systems of all pumps by way of cleaning of all the surfaces viz., suction/delivery manifolds / lines, sluice valves, reflux valves, etc by removing dust and other unwanted material from the surfaces, applying a coat of red oxide primer and then two coats of black enamel paint for smooth finish. Complete job in all respects as per site conditions. The complete job includes cost of material, labour, consumables, transportation of tools & tackles, testing & commissioning of installation. Complete job as per site requirement.

Submersible pump sets: Providing, installation, testing & commissioning of 01nos. 3000 GPH x100 mtrs head submersible pump sets (submersible pump along with energy efficient 4/5 star rating 3-phase water lubricated wet type submersible motor) of nationally reputed make viz. KSB/ Calama/ Kirloskar only conforming to relevant IS codes with accessories at T/well cum P/stn. Oddha.The job includes providing of new submersible pump & motor sets with thrust pad assemblies and coupling of the submersible pump with the motor. Fabrication of graded reducer fabricated out of G.I. pipe of requisite length and dia as per pump outlet dia, threaded at one end to hold delivery end of pump and welded at other end with heavy duty MS flange for pump’s fitting with flanged column pipe. 02 nos. nuts of size 16 mm are to be welded on opposite side of reducer so that clamping bolts of a tie-rod can pass through it. Coupling of the pump and motor assemblies. Fabrication of tie-rod clamping arrangement for clamping the pump & motor fabricated out of 40 x 6 mm MS flat with turn buckle arrangement made out of heavy duty 16 x 80 mm bolts welded at both the ends. The U-shaped clamp should pass though the bottom of the thrust pad of the motor and the bolts welded at its both ends should pass through the nuts welded on the opposite sides of the reducer for proper tying of the pumpset. Filling of the cooling jacket of motor with distilled water ensuring the system free of air bubble by making the water to circulate from inlet port through outlet port of motor followed by plugging of the same properly. Testing of the coupled pumpset by lowering the same in the test pit at workshop for checking the discharge of the pump and performance of the motor at zero head. Shifting of the pumpsets to site.

Testing & Commissioning: Testing and commissioning of HC pump sets, submersible pump sets, LT control panels along with all electro-mechanical system on load at site. The job includes checking of alignment during operation of pump set, abnormal sound during operation, checking of leakage on suction and delivery side and plugging of same thereafter providing and fitting of nuts and bolts, rubber sheet whereever required. Also checking of electrical system & LT control panels by identifying any loose electrical connections, their re-taping thereof and proper operation of the star-delta starter. Complete job in all respects on turnkey basis as per site conditions.

Painting: The job also includes proper painting on the wall with black & white enamel paint mentioning clearly the particulars of machinery / equipment installed under Nabard at the station.

SAMBYAL ENG AND ELECT WORKS