KMC/WS/MGPS/NEWPARK/15/2025-26

SUPPLY AND DELIVERY OF MILD STEEL FABRICATED DOUBLE FLANGED SLANTED SEATED TILTING DISC CHECK VALVE ( NON- RETURN VALVE WITH BOTH SIDE COUNTER WEIGHT AND HYDRAULIC DAMPER) SIZE 500 MM DIA. RATE APPROVED BY DIRECTOR GENERAL (WAYER SUPPLY) DATED: 22/08/2025.

CHAPTER - II LAYING & JOINTING PIPES, SPECIALS ETC.2.1 C.I. / D.I. Pipe & Specials 2.1 C.I. / D.I. Pipe & Specials 2.4Valves 2.4.1 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]500mm dia.

CHAPTER - II LAYING & JOINTING PIPES, SPECIALS ETC.2.1 C.I. / D.I. Pipe & Specials 2.1 C.I. / D.I. Pipe & Specials 2.3.8 Supplying and fabricating 20 mm to 32mm thick (finished thickness) M.S.Blank Flange properly ribbed, one face machined including drilling holes as per standard table, fitting and fixing the same with M.S. flanged pipe with supply of nuts, bolts, washers, gasket etc. of best quality all complete as per specification and direction of the Engineer-in-charge.600mm dia.

CHAPTER - II LAYING & JOINTING PIPES, SPECIALS ETC.2.1 C.I. / D.I. Pipe & Specials 2.1 C.I. / D.I. Pipe & Specials 2.3.7Supplying 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] 500mm dia

CHAPTER - II LAYING & JOINTING PIPES, SPECIALS ETC.2.1 C.I. / D.I. Pipe & Specials 2.1 C.I. / D.I. Pipe & Specials 2.3 M.S. Pipes 2.3.1 Gas cutting of M.S. pipes and/or M.S. plates of different thickness all complete as per specification and direction of the Engineer-in- Charge. Thikness in mm 5mm to 8mm thick plate

CHAPTER - II LAYING & JOINTING PIPES, SPECIALS ETC.2.1 C.I. / D.I. Pipe & Specials 2.1 C.I. / D.I. Pipe & Specials.2.3.4Field welding of machined ends of pieces of M.S pipes and specials forlaying the same inside trench/over ground by means of electric arc welding as per relevant ISspecification using standard electrodes including edgepreparation and charges of deployment of electric generator set with fuel, lubricant, and all other tools and plants all complete as per specification and direction of Engineer-in-Charge. [ Engineer-in-Charge shall approve the electrodes for arc welding before use ]Throat thickness in mm 12mm

CHAPTER - VIII SUPPLYING OF MATERIALS 8.4Supply of Flat Rubber Gasket of EPDM Quality with ISI Mark to IS: 5382/1985 Type-4 suitable for flange joint, drilled to IS: 1538 (Table ... VI). The gasket should have dual thickness 3/6mm with 6 mm thickness at the sealing cross section.500mm dia

CHAPTER - VII MISCELLANEOUS ITEMS Dewatering by pumps including all leads, lifts and making all arrangements of disposal. where continuous flow of water from a source other than natural or ground water is encountered in case of emergency maintenance works related to leakage. breakage and making wet connections. [Note ;- In case of any other situation demanding such emergency dewatering. use of this item is to be approved by the Superintending Engineer/Tender Accepting Authority. This item shall be executed on the specific direction duly supported by proper clarification of the E.I.C. who will be satisfied in absolute discretion that such work has not been necessitated due to any natural source of water or any fault of the Contractor]

STEEL PLATE 25 CONFORMS TO IS 2062-2006 A) 10 MM TO 20 MM, PWD (ROAD AND BR.) 2015-160 AND 14 TH CORRIGENDUM DATED: 18/04/2018 PAGE 215 TABLE NO.1.1, ITEM NO.2

MAZDOOR (MALE/FEMALE) RATE INCLUDING 10% CONTRACTOR'S PROFIT, 8% OVER HEAD CHARGES, 1%LABOUR WELFARE CESS , RATE REFERANCE: RATE OF WAGES FOR DIFFERENT CATEGORY OF WORKERS , UNIFIED SCHEDULE OF RATE (M&E), IRRIGATION & WATER WAYS DEPARTMENT, GOVT OF WEST BENGAL, PAGE NO.66, SL NO. 3

HEAD MECHANIC RATE INCLUDING 10% CONTRACTOR'S PROFIT, 8% OVER HEAD CHARGES, 1%LABOUR WELFARE CESS , RATE REFERANCE: RATE OF WAGES FOR DIFFERENT CATEGORY OF WORKERS , UNIFIED SCHEDULE OF RATE (M&E), IRRIGATION & WATER WAYS DEPARTMENT, GOVT OF WEST BENGAL, PAGE NO.66, SL NO. 9

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