Public Health Engineering Department-PHED has published Mechanical Repair Work To Be Carried Out For 3 Stage, 5 Cusec, Bowl / Pump Assembly Of Wpil Make Along With Transmission System Of Unit No.1 At New V.T Station For Wss Doodh-Ganga Mechanical Repair Work To Be Carried Out For 3 Stage, 5 Cusec, Bowl / P. Submission Date for this Tender is 10-02-2022. Pump Supply Tenders in Srinagar Jammu And Kashmir. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 05-Feb-2022 | Date Extention | Date | 10-02-2022 |
| Sl. No. | Item Description |
| 1 | 3 Stage 5 Cusecs Bowl/Pump Assembly of WPIL make |
| 2 | 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. |
| 3 | 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. |
| 4 | 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. |
| 5 | 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/stagefabricated 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. |
| 6 | 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. |
| 7 | Providing, fabrication and fitting of G M SCREW BEARING bush/sleeve having ID= 55 mm, OD= 90 mm, and 200 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. |
| 8 | 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. |
| 9 | 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. |
| 10 | 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. |
| 11 | Repair of Transmission System parts |
| 12 | Repairs to Gland Box by way of providing, fabrication and fitting of cut less Gun Metal bearing bushhaving ID=100 mm ,OD=120 mm and length 150 mm /as per sample to be press fitted inside the Gland box assembly at lower end fabricated out of suitable hallow casted Gun Metalbar 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. |
| 13 | Providing, fabrication and fitting of MS tube/Nipple of size 200 mm long having ID=80 mm and OD=100/ as per sample with internal threads on both sides by way of cutting, turning and finishing processes of machining and checking its proper alignment. |
| 14 | Repairs to existing available Departmental damaged Tube tensional Nipple [TT Nipple] having ID=80 mm, OD=100 mm and overall length of 1828.8 mm/as per sample with damaged/worn out threaded portion up to 150 mm length having internal and external threads on both bottom and upper ends. The job includes Providing, fabrication and fitting 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. |
| 15 | Repairs to existing available Departmental damaged MS Transmission Tubes / Nipples having ID=80 mm, OD=100 mm and overall length of 1524 mm/as per sample with damaged/worn out threaded portion up to 150 mm length having internal threads on both upper and bottom ends. The job includes Providing, fabrication and fitting 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 up to 150mm/ as per requirement on both sides by way of cutting, turning and finishing processes of machining and checking its proper alignment. |
| 16 | Providing, fabrication, and fitting of intermediate GM Screw bearing bushes as per sample / having ID= 50 mm, OD= 90 mm, and 150 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. |
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