Tender For Installation Of 450 Mm Dia Butterfly Valve On Bypass Line Of 1800 Mm Dia Transmission Main Along With Supply, Fitting-Fixing Of New Gearbox For Another 450 Mm Dia Bfv With Other Ancillary Work At Cwps-Iv Of Grww.
Tender Value
Ref. Documents
Estimated cost
Bid Submission
18 Aug 2026
3 days left
EMD
4000
Bank guarantee accepted
Document Fee
Ref. Documents
Non-refundable
Tender Type
Online
Tender Overview
Organization
Tender ID
Competition Type
NCB
Bidding Type
Tender
Location / State
Kolkata → West Bengal
EMD Exemption
Not Available
Quantity
Not Available
Website
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Address
Project Description
Tender for Installation Of 450 Mm Dia Butterfly Valve On Bypass Line Of 1800 Mm Dia Transmission Main Along With Supply, Fitting-Fixing Of New Gearbox For Another 450 Mm Dia Bfv With Other Ancillary Work At Cwps-Iv Of Grww.
BOQ
| Sl. No. | Item Description |
| 1 | TOTAL AMOUNT |
| 2 | Supplying and fabricating 20 mm to 32mm thick (finished thickness) M.S flange. properly ribbed, one face machined, including drilling holes as perstandard table, fitting and fixing the same with M.S. pipe by electric arc welding as per relevant I.S. specification using standard electrodes and direction of the Engineer-in-Charge. [ The Engineer-in-Charge shall approve the electrodes for arc welding before use] 450mm dia |
| 3 | Lowering, fitting and fixing of all types of valves in proper position and alignment using chain pully block or crane(for diameter above 250 mm) by providing temporary support,as required, gaskets,nuts& bolts etc.all cornplete as per specification and direction of the Engineer-in-Charge.[The rate Includes cost of flange joints]450mm dia. |
| 4 | Cutting to requisite length or shape departmental R.S. joists,channels, angles, tees, plates etc. (Payment to be made on area of cut surface) |
| 5 | Welding in M.S. structural work with gas or electric: (a) Tack weld |
| 6 | elding in M.S. structural work with gas or electric: (b) Continuous weld |
| 7 | SUPPLYING OF AT 100/1/S1E GEARBOX AND FITTING WITHBUTTERFLY VALVE. |
| 8 | REMOVING THE GEAR BOX FROM THE B/F VALVE USINGNECESSARY ATTACHMENT CHAIN PULLEY, PULLER, TOOLSAND TACKLES ETC AS PER DIRECTION OF EIC. |
| 9 | TO & FRO TRANSPORTATION OF GEAR BOX FROM THEWORKING SITE TO THE CONTRACTORS WORK SHOP AND VICEVERSA AFTER REPAIRING AS PER DIRECTION OF EIC. |
| 10 | DISMANTLING THE GEAR BOX COMPONENTS SUCH AS WORMGEAR, SECTOR PINION, SOUR GEAR EACH ATTACHMENTS,KEY, BEARINGS USING PULLER AND OTHER NECESSARYARRANGEMENT WITHOUT DAMAGING ANY COMPONENT WITHNECESSARY WORKS ETC COMPLETE AS PER DIRECTION OFEIC. |
| 11 | REASSEMBLING THE GEAR BOX VIZ. WORM GEAR, SECTORPINION SPUR GEAR ATTACHMENTS, KEY, BEARINGS USINGPULLER AND OTHER NECESSARY ARRANGEMENT WITHOUTDAMAGING ANY COMPONENT, CLEANING AND GREASING ETCCOMPLETE AS PER DIRECTION OF EIC. |
| 12 | FITTING FIXING THE GEAR BOX WITH THE EXISTING VALVESHAFT MAINTAINING PROPER ALIGNMENT AND ADJUSTMENTOF THE SECTOR PINION, FITTING OF KEY, TIGHTENING THEMOUNTING BOLTS, ADJUSTMENT AND FIXING STOPPER BOLTETC AND TO ENSURE FULL OPEN/CLOSE AT 90? ROTATION. |
| 13 | SUPPLY AND FIXING OF GOOD QUALITY GASKET AFTERPROPER CLEANING THE SURFACE AS PER DIRECTION OF EIC. |
| 14 | SUPPLY AND DELIVERY OF NEW FASTENERS |
| 15 | SUPPLY AND DELIVERY, FITTING FIXING OF GOOD QUALITY\\"O\\" RING AND OIL SEAL |
| 16 | SUPPLY AND DELIVERY OF NEW MOUNTING STUD NUTS & COVER NUTS. |
| 17 | CLEANING, GREASING AND PAINTING OF GEAR BOX |
| 18 | SUPPLY AND DELIVERY OF NEW STAINLESS STEEL STOPPERBOLTS |
| 19 | SUPPLY AND DELIVERY OF UNIVERSAL JOINT OF SHAFT DIA 25 MM TO 35 MM. |
| 20 | SUPPLY AND DELIVERY OF SPLITTED (FLANGED COUPLED)EXTENSION SHAFT, LENGTH 1000MM, DIA 25 MM TO 35 MMWITH TWO DOUBLE FLANGE JOINT |
| 21 | FITTING FIXING OF THE EXTENSION SHAFT WITH PROPERALIGNMENT ON VALVE PLATFORM. |
| 22 | SUPPLY AND FIXING OF SPARE WORM FOR AT 80/1/S1 GEARBOX FITTED WITH BUTTERFLY VALVE |
| 23 | SEQUENTIAL DISMANTLING OF ACTUATOR INCLUDINGDISCONNECTIONS OF ALL THE ELECTRICAL LINES, GEAR BOX,WHEEL ETC. OF 750MM DIA ACTUATOR-OPERATEDNON-RISING TYPE SLUICE VALVE. PN1.6 CWPS-II GRWW ANDKEEPING THEM AT A SUITABLE PLACE INCLUDING ALL SORTSOF ALLIED WORKS, ALL COMPLETE, ADOPTING ALL SORTS OF REQUIRED PRECAUTIONS, SAFETY ETC AND USING ALLSORTS OF MACHINES, INSTRUMENTS, TOOLS AND TACKLES,ARRANGEMENTS, SUPPORTS ETC AS PERSITE-REQUIREMENT AND DIRECTION OF THE EIC. |
| 24 | DISMANTLING, LIFTING ETC OF THE ENTIRE EXISTING 750MMDIA ACTUATOR-OPERATED NON-RISING TYPE SLUICE VALVE,PN1.6 CWPS-II, GRWW FROM THE EXISTING PIPE-BAY,SEQUENTIALLY BY OPENING, DISMANTLING AND REMOVINGOF THE EXISTING SCRAP HOLDING, OPENING ANDDISMANTLING OF ALL THE NUTS, BOLTS ETC OF BOTHSUCTION AND DELIVERY SITE AND KEEPING IT AT A SUITABLEPLACE, ADOPTING ALL SORTS OF REQUIRED PECAUTIONS,SAFETY ETC AND USING ALL SORTS OF MACHINES,INSTRUMENTS, TOOLS AND TICKLES, ARRANGEMENTS,SUPPORTS ETC AS PER SITE-REQUIREMENT AND DIRECTIONOF THE EIC. |
| 25 | LIFTING, PUTTING AND INSTALLATION OF THE 750 MM DIAACTUATOR-OPERATED NON-RISING TYPE SLUICE VALVEPN1.6 OF CWPS-II, GRWW IN EXISTING PIPE-BAYSEQUENTIALLY BY PROVING, INSERTING TIGHTENING ETC OFTHE REQUIRED SSNUTS, BOLTS, WASHERS ETC OF BOTHSUCTION AND DELIVERY SIDES AND REASSEMBLING OF THESCRAP HOLDING PART BY PART INSERTING AND TIGHTENING OF ALL THE NUTS, BOLTS ETC OF THE SCRAP HOLDINGADOPTING ALL SORTS OF REQUIRED PRECAUTIONS, SAFETYETC AND USING ALL SORTS OF MACHINES, INSTRUMENT,TOOLS AND TACKLES ARRANGEMENTS, SUPPORTS ETC ASPER SITE-REQUIREMENT AND DIRECTION OF THE EIC. |
| 26 | INSTALLATION OF THE ACTUATOR INCLUDING CONNECTIONSOF ALL THE ELECTRICAL LINES, GEAR BOX, WHEEL ETC OFTHE 750MM DIA ACTUATOR-OPERATED NON-RISING TYPESLUICE VALVE, PN1.6 OFCWPS-II GRWW AND INCLUDINGREQUIRED GREASING AND ALL OTHER ALLIED WORKS ALLCOMPLETE, ADOPTING ALL SORTS OF REQUIREDPRECAUTIONS, SAFETY ETC AND USING ALL SORTS OFMACHINES, INSTRUMENTS, TOOLS AND TACKLES,ARRANGEMENTS, SUPPORT ETC AS PER SITE-REQUIREMENTAND DIRECTION OF THE EIC. Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Aug 07, 2026
11:30 IST
Tender Published
Tender notice published.
CompletedAug 18, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 3 daysAug 20, 2026
Bid Opening Date
Technical bids will be opened and evaluated.
Upcoming · 5 daysTender Documents
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