Mechanical repair works to be carried out for 3-stage, 5 cusec Bowl/Pump Assembly of WPIL make installed at Upper contour to be extracted from Unit No 4th at New V.T Station for WSS Doodhganga

Amount

3-stage, 5 cusec Bowl/Pump Assembly of WPIL make

Loading of the damaged bowl /pump assembly already to be extracted from unit no 4th installed at upper contour in a private load carrier and shifting to the private workshop for carrying out necessary repairs with all leads and lifts thereof included. Disassembling of the Bowl /pump assembly in a private Workshop involving dismantling 3 stages of bowl /pump casing /stages followed by extraction of impellers from housings, damaged/broken / worn-out sleeves, wearing rings, collets, bearing bushes etc from all the stages of bowl/pump assembly including worn out bowl/pump shaft using skilled personal, tools and tackles required for the Job.

Providing, Fabrication, and fitting of New Stainless-Steel bowl /pump shaft as per existing sample of SS 410 having OD=55 mm Length= 1.98 meters (approx). The Shaft has been precisely machined at various required segments to accommodate Impellers’, impellers lock Collets, bearing bushes etc using skilled labour, tools and tackles, high-speed cutting tool to achieve the required parameters. The Job includes making of impeller seats for fitment of SS impellers at required position of the shaft. The job also includes fabrication of threads 65 mm in length from upper side of the shaft for fixing of Coupling Sleeve after reducing the upper portion to 42 mm dia for 350 mm length/as per sample. The job includes finishing of the shaft to size for proper fit in three stages of the bowl assembly by way of cutting, turning and finishing processes. The job also includes checking of alignment of shaft on the lathe for proper fitment in the bowl housing/stages by way of cutting, turning and finishing process of machining.

Providing, fabrication and fitting of Gun Metal SEAL RINGS as per sample /requirement having ID= 200 mm and OD= 212 mm and width of 50 mm fabricated / casted out of GM bar along with making of Seat and collar for fitment in inter bowl stages and on impeller shoulders respectively by way of using cutting, turning and finishing processes of machining. The job involves engagement of skilled labour, precise tools and tackles as required for carrying out the job.

Providing, Fabrication, and fitting of G.M CUTLESS BEARING bush including[Rubber Stabilizer bush as per required size] inside it as per requirement of dimensions ID= 55 mm, OD= 75 mm and length 75 mm to be press fitted inside three no intermediate/inter bowl parts/stages fabricated and casted out of suitable hallow casted G.M bar by way of cutting, turning, finishing process of machining after extraction / cutting of worn out bushes if any by way of engaging skilled labour, tools and tackles required for this precise Job.

Providing, Fabrication, and fitting of G.M CUTLESS BEARING bush including [ Rubber Stabilizer bush as per required size] inside it of dimensions ID= 55 mm, OD= 75 mm and length 205 mm to be press fitted inside bottom end of upper inter bowl part/stage fabricated out of suitable hollow casted G.M bar by way of cutting, turning, finishing process of machining after extraction / cutting of worn-out sleeves by way of engaging skilled labour, tools and tackles required for this precise Job.

Providing, Fabrication, and fitting of G.M CUTLESS BEARING Sleeve/bush including [Rubber Stabilizer bush as per required size] inside it as per requirement of dimensions ID= 55 mm, OD= 80mm and length 210 mm to be press fitted in Suction Bell/ mouth assembly part fabricated out of suitable hollow casted G.M bar by way of cutting, turning, finishing process of machining after extraction / cutting of worn out sleeves by way of engaging skilled labour, tools and tackles required for this precise Job.

Providing Fabrication, and fitting of G M SCREW BEARING bush/sleeve as per requirement having ID= 55 mm, OD= 100 mm, and 200 mm long to be press fitted on upper rear end of Bowl part fully threaded outer side to whole length to be fabricated out of suitable hallow casted G.M bar by way of cutting, turning, finishing process of machining including making of threads to outer portion of the screw bushes as per requirement after extraction / cutting of worn out bush sleeves by way of engaging skilled labour, tools and tackles required for this precise Job.

Providing, Fabrication, and fitting of Stainless-Steel frustum type Impeller LOCK COLLET as per requirement of length 90 mm having ID= 55 mm and OD=68 mm respectively fabricated out of suitable Solid SS round cylindrical bar by way of turning, cutting, finishing and grinding process of machining. The job involves Cutting of impeller LOCK COLLET around slanted portion to be press fitted for locking the impellers on bowl shaft by way of engaging skilled labour, tools and tackles required for this precise Job.

Removal of damaged /worn out/broken studs/bolt [15 in no’s] out of total 48 No’s in the bowl stage by way of welding the stem of damaged studs inside bowl stage with M.S bolt for unscrewing of these studs from the threads of the bowl stage using skilled labour, tools and tackles as required for positioning of the stages to carry out this precision job .The job then includes reaming of the damaged threads in the bowl stages using reaming tool and then making of new threads using reamer machine for proper fitment of newly fabricated /procured Studs [15 in Nos’] in the developed threads in the bowl stages.

Fabrication, Providing and fitting of MS Socket as per Sample having ID= 100 mm, OD= 120 mm, and 140 mm long to be press fitted on upper rear end of Bowl part internally threaded in anti-clock wise direction for fitment of Screw bearing bush inside it.

ConstructionShifting of the repaired assembled bowl /pump assembly back to site in a private load carrier/suitable Van from worksite/workshop. Assembling it with column pipes, line shafts, discharge head, intermediate stool, including providing and fitting of nuts and bolts of assorted size if required for fitment with motor followed by Connecting it with 3 Phase AC supply and finally testing on full load at site. of chamber for 100mm sluices valve

M/S FAROOQ AHMAD MECHINICAL WORKS

M/S A R and SONs