Providing/Installation/Testing and Commissioning of additional 3 cusec discharge 32m head HC pumping unit along with allied accessories at LIS Jakhole.

Providing/Installation/Testing and Commissioning of additional 3 cusec discharge 32m head HC pumping unit along with allied accessories at LIS Jakhole.

Dismantling of the 3 cusecs spiral casing pumping unit no 3 at lift irrigation station, Jakhole by way of demounting the pumping machinery from the bed plate after removing the pump, motor, electric connections, coupling pulleys, suction and delivery pipes and finally removing the base frame. Breaking the damaged RCC foundation block with the help of Chisel, concrete cutter, electric jack hammer, tools / tackles. Cutting of steel members with the help of cutter step wise during the process of breaking the RCC block and stacking. Completely removal of broken concrete, soil and tmt bars from pump room in such way that the machinery and electric equipment of other pumping machinery are not damaged/ effected. Disposal of salvage of dismantled foundation away from pumping room up to the distance of 100 m at such place where irrigation land and water source is not polluted. Laying of new RCC foundation block of size length – 5 ft x width- 2.5 ft x depth- 3.5 ft by way of making surface even for laying of new RCC foundation block. Fabrication of steel mesh out of 10 mm TMT bars members placed vertically and horizontally at an equidistance of 6 inches. Laying of 6 inch concrete base at the bottom to level the surface. Placing of fabricated iron mesh in foundation pit and levelling / aligning it with the pumping unit. Fabrication and grouting of 6 No. foundation bolts of size 2.5 ft in foundation block. Laying of RCC foundation block of size 5 ft x 2.5 ft x 3 ft by filling the concrete in the ratio of 1:1.5:3. The size of the block above the ground level should be of original size and alignment in respect of suction and delivery pipes. The block shall be filled with rich mixture of concrete with using vibrator for compaction. The entire block as one unit is to be laid in such a way that it can damp all types of mechanical vibrations created by dynamic load of pumping unit without causing any defect to the pumping unit as well as to the block itself. Fixing of the base frame after levelling and fastening with foundation bolts. Complete job includes cost of material such as cement, sand, steel, shuttering charges, charges for concrete mixture, vibrator charges and labour charges of skilled as well as semi skilled labour, curing charges. The material has to be carried on head load from road side to lift irrigation station. Providing, Fitting, Installation, Testing and Commissioning of 03 cusec x 32 meter head horizontal end suction casing , raw water lifting Pumping unit and allied works at LIS Jakhole Recommended make of Pump : - Kirloskar, KSB, Mather Platt, Beacon Weir. Type of Pump : - Horizontal end suction casing pump Recommended make of Motor : - Kirloskar, ABB, BHEL, Seimens. Material of construction 1. Impeller:- Cast Iron / Cast Steel / Stainless Steel / Chrome Steel / Duplex Steel 2. Pump Shaft: -.Carbon Steel / Stainless Steel / Duplex Steel 3. Wearing Ring: - Cast Iron / Bronze/ Steel 4. Pump casing: - Cast Iron / Cast Steel / Stainless Steel / Duplex Steel 5. Gland:- Cast Iron / Bronze 6. Shaft Sleeve:- Stainless Steel / Bronze 7. Base frame –Mild steel. 8. Motor- minimum60 hp or compatible with pumping unit. 9.The pump motor set shall be inspected from third party complying with ISO 17020 standards before dispatch. The inspection charges shall be paid by the firm / contractor. The inspection charges shall not be re-imbursed Shifting for pumping unit to Lift irrigation station, Jakhole by carriage vehicle. Unloading of pumping unit at roadside using crane/ manual labour. Carriage of pumping unit to pump room by manual labour on head load. The base frame should be fabricated out of MS channels of totally welded construction and of sturdy design, adequate dimensions having true and machined surface suitable to with stand load and vibrations of machine. Base frame should have holes for fastening motor and pump. The base frame must be levelled to avoid any misalignment of pumping machinery. Fitting and Installation of motor, pump with coupling pulley and then fitting on base frame with help of chain pulley block, tripod stand and manual labour. Providing, fitting, welding and laying of MS suction pipeline of 200 mm diameter - 34 feet in length for 3 cusec pumping unit no 3 in new alignment as per the suction of newly installed pumping unit from intake to pump. Removing of suction pipeline from installed position by way of excavation of earth, concrete up pipe level and dismantling of existing suction pipeline by way of cutting rusted, damaged nuts, bolts with gas welding. Providing, fitting of 8 number MS plate flanges of 200 mm internal diameter with suction pipe at different lengths. Welding of the flanges at the ends of pipes with double layered welding to avoid any leakages as per site conditions. Fastening of suction pipeline with pumping unit using nuts, bolts and rubber gasket. Fabrication of one number MS bend of required angle as per alignment of suction pipeline from 200 mm diameter MS Pipe with welding of 200 mm diameter MS plate flanges on both ends of bend. Providing and fitting of rubber gaskets between each MS flange joint. Fastening of each length of suction pipe with hexagonal nuts and hexagonal bolts. The job includes refilling of earth after laying of pipeline. Providing and fitting of new 200 mm diameter cast iron, flanged foot valve ( L&T, Kirloskar, KSB) with pressure rating of PN 0.2, the door face should consists of rubber with reinforcement of cotton canvas, after replacing existing damaged foot valve by cutting rusted nuts, bolts with gas cutting at intake source. Job includes providing of new nuts, bolts and rubber gasket. Fitting of pump outlet with existing/ old delivery line by way of providing and fitting of 200 mm diameter sluice valve ( L&T, Kirloskar, KSB/reputed make) after replacing existing sluice valve of way of cutting rusted nut, bolts with gas cutter. Providing and fitting of flanged ends cast iron sluice valve with PN 1.0 on delivery side of the pumping unit with rubber gaskets, nuts and bolts on the delivery pipeline. Providing and fitting of 200 mm diameter cast iron non return valve ( L&T, Kirloskar, KSB/reputed make) after replacing existing non return valve by way of cutting rusted nut, bolts with gas cutter. Providing and fitting of flanged ends cast iron non return valve with PN 1.6 on delivery side of the pumping unit with rubber gaskets, nuts and bolts on the delivery pipeline. The job includes refilling of earth after laying of pipeline. Providing and fitting of 50 mm dia ball valve of reputed make for priming of pumping units installed at LIS Jakhole. The job includes providing of 50 mm dia pipeline and connecting it with the pumping units for priming . Job includes closing of inlet pipe housing of unit no 2 and 3 properly by way of filling concreating/strengthening/ caping by MS sheets of requisite size by welding in way to make it leak proof so that during flood , outer water could not enter to pump room through housing suction inlet. Providing, installation, testing and commissioning of dry type star delta starter ( L&T/ Havells/ Siemens/reputed make.) for motor compatible with pumping unit at Lift irrigation station Jakhole for newly installed pumping unit, the starter should consists of sheet metal enclosure inclusive of single phase preventer, 3 no’s contactors along with auxiliary contacts conforming to IS/IEC 60947-4-1, over load relay, timer, one number volt meter, one number ampere meter , on / off switch, phase indicators etc. The job includes fitting of starter on wall by way of drilling holes, fitting of fasteners. Providing and fitting of 25 sq mm copper cable from starter to motor – 6 no ‘s of 6 meter each in length and thimbling the copper cables with 25 sq mm copper thimbles with help of crimping tool and cover the flexible copper cable with heavy duty PVC sleeve. Making connections from starter to motor. Providing and fitting of MCCB 400 Ampere -50KA cut rating , four pole of reputed make in main control panel by replacing old/damaged ACB and fitting it for incoming main power supply in main control panel. Providing and fitting of MCCB 200 Ampere -50KA cut rating of reputed make in main control panel for new installed unit . Job includes proper fitting of these MCCB in main panel by thimbling and by providing new nut bolts and proper fitting of power cables. Also providing and fitting of 35sq mm of copper cable from panel to starter –3 no’s cables of 12 meter each and properly thimbling the flexible copper cable with 35 sq mm copper thimbles with help of crimping tool. Cover the flexible copper cable with PVC sleeve. Making connections from panel to starter. Job further includes design, fabrication, installation testing and commissioning of Gantry mechanism for hanging of chain pulley block for extraction of suction pipes and foot valves from sump at pumping station Jakhole.The job involves laying of RCC block of size of 1.25mx1.0mx1.5m adjacent to suction pipes for anchoring of vertical cantilever section. by way of excavation of trench of size (1.25mx1.0m x0.5m) by excavating hard rock , removal of excavated material and disposing of the same. Laying of crushed stone 40 mm, laying of one layer of 1:4:8 concrete mass of 100mm depth, providing and laying of TMT steel 10mm,250 mm square mesh throughout the block, providing and fabrication of 04 no. foundation bolts along with nuts as per site requirement and then grouting properly in the foundation block along with laying of cement concrete mass in the ratio of 1:1.5:3 and curing complete. Job includes providing and fabrication of one no.approx.3.5 meter vertical section from 4”x4” MS pipe having minimum thickness of 5 mm ,fabrication of foundation plate of size 1’x1’from 10mm thick MS plate, drilling of 4 no.of holes of 25 mm dia to MS plate and welding the foundation plate to the vertical section pipe. Providing and Fabrication of cantilever section approx.3.5 mtrs. in length from 4”x4” MS pipe, fitting of U shaped MS hook of round bar with one end of cantilever section for hanging of chain pulley block and fitting other end of cantilever section with vertical section with a suitable mechanism fabricated out of MS section with proper welding so as to allow the movement of the cantilever section more than 180 degree-for Safe extraction of foot valve, suction pipe and and also welding one no brace/support to the cantilever section and then erection of whole fabricated vertical structure by bolting the foundation plate with anchoring bolts and tightening properly with nuts/washers including providing/fabrication of one no support to vertical structure/ section using MS channel/angle of suitable length and thickness. Job also includes providing and fitting of Chain pulley block of 3T capacity having lift 6 mtr conforming to ISI standard and then testing on full load . Complete job. includes cost of material, consumable, handling, loading, unloading, transportation charge, labour charges for both skilled /semi-skilled labour and hiring charges for Crane , tripod stand, tools and tackles required during the execution of the job at site. Note:- The tenderers are requested to visit the site and quote the rate as per site conditions. Any modifications/ alterations of the job, absolutely necessary if required at the time of execution may be done as per actual site conditions.

VK Mechanical Works

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