Repairs to 8 cusec discharge x 10 meter head pump set of unit No. III along with allied works at L.I.S. Seelam and fabrication of foundation block, providing and fitting of base frame along with allied works at Lift Irrigation Station, Burejal.

Amount

Repairs to 8 cusec discharge x 10 meter head pump set of unit No. III along with allied works at L.I.S. Seelam

Decoupling of 8 cusec pump of pumping unit no III from motor and then dismantling the motor and pump from the base frame. Carriage & shifting of dismantled pump of LIS Seelam on head load through path in fields to roadside using manual labour and then to workshop by carriage vehicle. Back shifting after carrying out repairs of motor & pump to site. The job includes loading, un-loading, manual labour, carriage charges of vehicle (to & fro), tools & tackles etc. Dismantling of 8 cusec discharge x 10 meter head spiral casing pump of pumping unit no III at workshop for extraction of all worn out/damaged parts i.e. pump shaft, impeller, bearings, sleeves, bush, check nuts, nuts & bolts, gland plate, gland studs. Providing and fitting of new pump shaft after turning to bearing size and turning of threads on shaft as per the size and pitch of threading on check nut. Repairs to impeller by filing cavities, cracks and finishing to original size. Providing and fitting of two number new bearings number 6410 and one number thrust bearing number 51312, neck ring, shaft protection sleeve, check nut, nuts & bolts, fabrication of new gland plate with providing and fitting of 2 no’s new gland studs. Completely cleaning of bearing housing to remove dust and metal residue. Reassembling all parts of pump with proper greasing & filling of pump bearing housing with fresh M-oil upto the required level. Assembling of pump with motor and connecting with suction and delivery pipes. Providing of new nuts and bolts with rubber gaskets. Providing and fitting of graphite packing. Replacement of 18 ft length of 350 mm MS pipe on suction side of the pumping unit installed at LIS Seelam by removing complete suction line from pumping unit to intake source. Providing, fitting of 350 mm MS pipe of 18 ft length upto the water level in suction sump. Carriage of MS pipes to lift irrigation station using carriage vehicle and then unloading and shifting of pipes to lift station on head load. The suction pipe is to be fitted and divided as per alignment at site. Providing, fitting and welding of 350 mm diameter MS flanges. Total number of 350 mm diameter plate flanges required for the complete job is 2 no’s. The welding on all flanges should be double layered and leak proof. Job includes providing and fitting of hexagonal nuts, bolts and rubber gaskets on all joints required for the job. Painting the suction pipeline by rubbing the surface with sand paper to make the painting area smooth and then painting with two coats of high quality (Asian/ Nerolac/ Berger paint). Complete job includes cost of material, labour charges, carriage charges from site to workshop and from workshop to site after repairs, cost of civil labour required during the job.

Rebate on Old Parts

Fabrication of foundation block, providing and fitting of base frame along with allied works at Lift Irrigation Station, Burejal.

Dismantling of the 5 cusecs x 24 meter head spiral casing pumping unit no I at lift irrigation station, Burejal 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 equipments of other pumping machinery are not damaged/ affected. 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. The work is to be executed in such a way that the working of lift station and other installed machinery is not effected. 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 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. Fabrication of new base frame by means of providing and fitting of 100 mm ISMC channel and fabrication of base frame (54 inch length x 25 inches width) by means of welding the ISMC channels to form the base frame as per the site requirement . The job includes providing and fabrication of base support for motor and pump with height as per alignment of pump and motor. Drilling of holes for foundation bolts on base frame. 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. Job includes providing and fitting of new rubber flanges and nuts bolts on the suction and delivery side of the pumping unit. Fabrication of base for 200 kva voltage stabilizer to be installed in lift irrigation Burejal. The job includes lifting of machinery from installed position by using chain pulley and skilled manual labour, fabrication of base after levelling the area and filling the area with concrete upto the required height at site. Installation of 200 kva voltage stabilizer over the fabricated platform, connecting of incoming and outgoing cables after properly thimbing the cables. Filling of the voltage stabilizer with 150 liters of fresh transformer oil. 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.

Rebate on Old Parts

Rishabh Electricals and Mechanical Works

Amit Electrical and Engineering Works