KMC/GRBU/JOKA/18/26-27
Kolkata Municipal Corporation · Kolkata, West Bengal · Repair, Maintenance & AMC Services · open
Key facts
- EMD: ₹10K
- Published: 12 Oct 2026
- Closing date: 31 Oct 2026
- Status: open
- Status as of: 19 Oct 2026 00:18 UTC
- Department: Sewerage & Drainage Department
- Office: GRBU
Description
Repairing, servicing and overhauling of the multi-door reflux valve of pump unit no. 1 at Joka Drainage Pumping Station under GRBU. The work includes dismantling, component manufacture and replacement, testing, reinstallation, painting and transportation. Completion is required within 30 days from the work order.
Eligibility & requirements
- Startup relaxation: No
- MSE relaxation: No
- Certifications: Hydraulic pressure test certificate
- Documents required: Trade/professional licence under Section 199/200 of the Kolkata Municipal Act, 1980, Declaration regarding interest or share of Municipal officers or servants in the tenderer's business, Declaration of relationship or close connection with the Mayor, Deputy Mayor, Aldermen, Councillors or Corporation officers, Contract labour licence under the Contract Labour (Regulation and Abolition) Act, 1970 and West Bengal Contract Labour (Regulation and Abolition) Rules, 1972, where necessary
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Commercial terms
- Bid type: Item Rate
- Evaluation: The fairness of the quotation and the past conduct of the contractor will be taken into consideration; the Corporation is not bound to accept the lowest tender.
- Make in India (MII): No
- MSE preference: No
Line items (19)
- Dismantling and taking out non return valve unit from delivery line by necessary gas cutting of corroded bolts and nuts,disengaging expansion joint and brick foundation support by using special tools & tackles. — Qty: 1 item
- Lifting the reflux valve to the safe location with lifting arrangement and skill labour and adequate safety measure. — Qty: 1 item
- Pattern making for casting CI flap door with proper allowences as per sample. — Qty: 1 item
- Mfg. and fitting fixing blank flange to the discharge line to prevent leakage of water into the sump chamber. — Qty: 1 item
- Removal of deposits, rust and inspection for damage/wear of NRV properly. — Qty: 1 item
- Dismantling the reflux valve doors & ismantli part by part from its special attachment for repairing. — Qty: 1 item
- Manufacturing cast iron disc (2 nos. dia. 350 mm x 50 mm thick) as per sample. — Qty: 2 Nos
- Manufacturing SS body seat ring and disc seat as per sample. — Qty: 4 Nos
- Manufacturing GM bush as per sample to suit with the hinge pin, valve body and disc. — Qty: 4 Nos
- Fitting fixing the body seat ring with the valve body disc seat ring with the disc after necessary sealing arrangement. — Qty: 1 item
- Supply of stud bolts,nut, washers for expansion joint. — Qty: 1 item
- Fitting fixing disc with the valve body by hinge pin and bush maintaining proper alignment. — Qty: 4 Nos
- Fitting fixing neoprene rubber with the disc to make it leak proof. — Qty: 2 Nos
- Hydraulic pressure testing body/shell & seat leakage including labour for test setup,operation,pressure holding & operation, draining, removal of test arrangements & cleaning and Test certificate. — Qty: 1 item
- Installation of the NRV in its original position by engaging proper lifting arrangement, including engaging ismantling joint properly with necessary masonary work for mending bricks foundation support with fixing supporting of the valve base with new gasket and nut bolts at the site. — Qty: 1 item
- Scrapping, cleaning and Painting inside and outside of valve with anticorrosive paint — Qty: 1 item
- Removal of blank flange and restoration of pipeline after completion of NRV repair. — Qty: 1 item
- Fitting fixing the valve with new ss nut bolts and gasket maintaining proper alignment. — Qty: 1 item
- Two way transportation charges of the valve from site to work shop including loading and unloading with hydra crane. — Qty: 1 item
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