Installation, testing and commissioning of 5000 GPH x 280 mtrs. head H.C. Pump set along with other allied electro-mechanical works at P/stn. Mandal under WSS Baladev NABARD.

Amount

Installation, testing & commissioning of 5000 GPH x 280 mtrs. head HC Pump set along with allied electro-mechanical works at P/stn. Mandal under WSS Baladev NABARD. The complete job involves the following:

Foundation block/ Installation: Installation, testing & commissioning of 5000 GPH x 280 mtrs. head H.C. Pump set at P/stn. Mandal. The job involves the following - Carriage of pumping machinery from Divisional store to work site. Dismantling of existing defunct HC pump installed at P/stn Mandal by way of disconnecting all electrical connections, decoupling of the pump and motor, dismantling of old unserviceable sluice valves, reflux valve, fitted with the suction/delivery lines, plugging of suction/delivery lines by fabrication/fitting of blind flanges of suitable thickness with rubber gaskets, nuts, bolts etc. to withstand the pressure as well as velocity head created during running of other pumping unit. Cutting of base frame from RCC foundation block with gas cutting by using oxygen, acetylene gas, dismantling/ breaking of existing foundation block by way of deploying skilled / unskilled labour using pneumatic hammer, high carbon chisels and other tools & tackles etc, cutting of wornout steel mesh, carrying and dumping of excavated material outside of pump room at suitable place. Construction of reinforced cement concrete foundation block of size 1800 mm x 900 mm x 900 mm (LxBxD) at the excavated pit by providing & laying of stones masonry in the 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.

Suction / Delivery systems: Fabrication, laying & installation of the 100 mm dia suction system of pumpset for connecting suction of pump to the suction line from the GSR. 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 suction of pump to the suction line from GSR. 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, laying & installation of 80 mm dia delivery system for connecting the delivery of the pump with the rising main of Baladev line. 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 systems of pump by way of cleaning of all the surfaces viz., suction/delivery 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.

Electrical installation: Providing & fitting of 50 sqmm multi strand copper cable of Polycab/Havells/HPL make for making inter-connections between the main switch & star delta starter & 35 sqmm multi strand copper cable of Polycab/Havells/HPL make from star delta starter to the induction motor of the HC pump of lengths as per site requirement. Providing & fitting og 60 HP oil immersed star delta starter of Kilburn / MEX make as standby option with providing & filling of transformer oil up to dash pot. Further, all the cabling should be laid underground in cable duct as per site condition. Complete electrification of the 02 nos. pump rooms by providing & fitting of 2-1/2 sq.mm copper cable properly laid in the PVC baton duly fitted on the wall of length as per site requirement. Providing & fitting of 03 nos. complete LED tube-light assemblies and a switchboard with requisite no. of ON/OFF switches and a multi-pin socket for the heating point in each room. Providing & fitting of 40 W LED flood light outside of the pump room for proper illumination of station. Complete earthing of all the electrical equipments in the pump rooms (02 nos.) including motors and 02 nos. panel boards by way of digging a pit of 4' x 4' x 6' size (LxBxH) and providing and filling of alternate layers of charcoal and salt up to 2'. Providing & laying of earthing copper plate in the pit, G.I. pipe 25 mm dia in the pit, aluminium strips and passing of electrical cables and making connection at suitable places for providing proper earthing to the induction motors & electrical installation.

Installation of voltage stabilizer: Installation, testing & commissioning of 150 KVA voltage stabilizer (provided by the Department) by shifting of the stabilizer from Divisional store Vijaypur to site on mechanical transport, unloading it by crane, dragging it inside of the pump room by crane / manual labour. Shifting it to appropriate place. Check for any moisture inside the oil tank by opening of the drain valve, checking of the MCCB, changeover switch etc. and then rectification of any fault, if any, identified before installation of the stabilizer at site. Filling of the transformer oil (provided by the Department). Make inter-connection of the LT cable from electric transformer to voltage stabiklizer & then from voltage stabilizer to main switch on the panel board by providing of heavy duty thimbles & proper crimping of the thimbles to the LT cable with crimping tool at each end. Complete job in all respects including testing of stabilizer first on no load & then on full load at site.

Testing & Commissioning: Testing and commissioning of HC pump sets 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 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. Note: The intending tenderer should visit the site before quoting to fully acquaint himself with the site location, nature and quantum of job. Note: The intending tenderer should visit each site before quoting to fully acquaint himself with the site location, nature and quantum of job.

M/S K S ENGG WORKS

AADISHWAR ELECTRICAL & MECH WORKS