Mechanical repair works to be carried out for 3 stage 5 cusecs bowl / Pump Assembly of WPIL make along with transmission system of unit No. 2nd at New Jack well Station at WSS Doodh-ganga.

Amount

3 Stage 5 Cusecs Bowl Assembly

Loading of the damaged 3-stage, 5 cusec Bowl/Pump Assembly along with transmission system already extracted from Unit No. 1st using private load carrier from site and shifting to the private Workshop for necessary repair work with all leads and lifts thereof included. Disassembling the Bowl assembly at Workshop, the job includes opening the bolts of bowl joints and then dismantling of bowl casing /stages followed by extraction of impellers from housings, damaged/broken / worn-out sleeves, wearing rings, collets, bearing bushes etc. from the damaged shaft to rectify the faults and to carry out necessary repairs using skilled personal, tools and tackles required.

Removal of damaged /worn out/broken studs/bolts in the upper inter bowl part/stage of bowl assembly by way of welding the stem of damaged studs/bolts inside bowl stage with M.S bolt for unscrewing of these studs/ bolts from the threads of the bowl stage using skilled labour, tools and tackles as required to carry out this precision job .Reaming of the damaged threads in the bowl stages using reaming tool and making of new threads for proper fitment of new Studs/ bolts [12 in No’s] in the developed threads in the bowl stage.

Providing, fabrication and fitting of New Stainless Steel 410 grade Impeller Shaft of having OD=55 mm Length= 1.98 meters (approx.)/ as per existing sample. The Shaft has been made precisely machined at various required segments to accommodate Impellers, impellers lock Collets, bearing bushes etc. using skilled labour, tools and tackles. 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 two 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 Shoulder Ring having ID= 200 mm and OD= 212 mm and width of 50 mm /as per sample, fabricated out of suitable hollow casted GM bar. The job includes making of Seat and collar for fitment in bowl stages and on impeller shoulders respectively by way of using cutting, turning and finishing processes of machining after extraction / cutting of worn-out Shoulder rings by way of engaging 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 in intermediate bowl parts/stages and bottom end of upper inter bowl part/stage fabricated out of suitable hallow casted G.M bar by way of cutting, turning, finishing process of machining after extraction / cutting of worn out bushes by way of engaging skilled labour, tools and tackles required for this precise Job.

Providing, fabrication and fitting of G.M CUTLESS BEARING Sleeve as per requirement of dimensions ID= 52mm, OD= 80mm and length 200 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 having ID= 55 mm, OD= 90 mm, and 150 mm long /as per sample fully threaded outer side to whole length and fabricated out of suitable hallow casted G.M bar by way of cutting, turning, including making of threads of the screw bush/bearing as per requirement, finishing process of machining after extraction / cutting of worn-out screw bushes 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 sample having length 90 mm ID= 55 mm and OD=68 mm fabricated out of suitable Solid SS round cylindrical bar by way of turning, boring, cutting and finishing /machining process. 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.

Repairs to damaged/broken suction bell flange end piece using C I welding electrodes by way of engaging skilled labour, tools and tackles required for this Job.

Shifting of the repaired assembled bowl back to site in a private load carrier from private workshop. Reinstallation it with column pipes, line shafts discharge head, intermediate stool, ratchet assembly and fitting it with 180 KW V.T motor followed by Connecting it with 3 Phase AC supply and finally testing on full load at site.

Transmission System

Providing, Fabrication, and fitting of New Stainless Steel Head shaft as per existing sample. The Head Shaft shall be of SS 410 having OD=43mm, Length= 1.8034 meters (approx.)/as per sample The Shaft has to be precisely machined and threaded on both sides with a threaded portion on bottom side up to a length of 60 mm and on upper side up to length of 125mm.The shaft Shall be provided with keyways of size 12mm in width and 6.5-inch length on one side and 3 inch long on other side. The job also includes checking of alignment of Head shaft on the lathe for proper alignment and fitment.

Repairs to Gland Box by way of providing, fabrication and fitting of cut less Gun Metal bearing bush having ID=73 mm ,OD=90 mm and length 165 mm /as per sample to be press fitted inside the Gland box assembly at lower end fabricated out of suitable hallow casted Gun Metal bar by way of cutting, turning and finishing process of machining including making of threads to inner portion of the bush for fitment of MS Tube tension Nipple rear end using skilled labour, tools and tackles, high speed cutting tool to achieve the required parameters.

Repairs to existing available Departmental damaged Tube tensional Nipple [TT Nipple] having ID=64 mm, OD=73 mm and overall length of 1244.6 mm with damaged/worn out threaded portion up to a length of 165mm having external threads on top end and internal threads on bottom end. The job includes Providing, fabrication and fitting/welding of new 300mm long MS Tube of same size on both upper & lower ends after cutting of the 300mm long damaged/worn out portion of the existing Tube/ Nipple and also including making of internal threads and external threads up to 150mm/ as per requirement on both sides by way of cutting, turning and finishing processes of machining and checking its proper alignment.

Providing, fabrication and fitting of MS socket internally threaded in anti-clock wise direction of length 100 mm ID= 40mm and OD= 55 mm to fit on line shaft /as per sample.

Providing, fabrication, and fitting of intermediate GM Screw bearing bushes as per sample / having ID= 50 mm, OD= 65 mm, and 120 mm length (approx.) fully threaded from outer side to be fabricated out of suitable hallow casted G.M bar by way of cutting, turning, finishing process of machining after extraction / cutting of worn-out screw bushes by way of by way of engaging skilled labour, tools and tackles required for this precise Job.

REGAL ENGINEERING WORKS

M/S M M ENTERPRISES