Tender For Pump Interconnection At Amrakanan Area, Lenin Sarani, Ward No 5 Under North Dum Dum Municipality. Sl. No. Item Description 1 Dismantling All Types Of Plain Cement Concrete Works,Stacking Serviceable Materials At Site And Removing Rubbish , 24 Paraganas North-West Bengal

tender for Pump interconnection at Amrakanan area, Lenin Sarani, Ward No 5 under North Dum Dum Municipality. Sl. No. Item Description 1 Dismantling all types of plain cement concrete works,stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m(a) Up to 150mm thick 2 Labour for taking out old soling including removing debris to flank or berm, sorting out serviceable material and staking. Single Flat Soling 3 Earth work in excavation of foundation trenches or drains in all sorts of soil(including mixed soil but excluding laterite or sandstone) including removing spreading or stacking the spoils within a lead of 75m as directed.The item includies necessary trimming the sides of trenches,levelling,dressing and ramming the bottom,baling out water as required complete.Depth of excavation not exceeding 1500mm. 4 Supplying, fitting and fixing cast iron spun pipe conforming to I.S.1536/1976 with all necessary specials including cutting trenches in anysoil or through masonry, concrete etc., if necessary,and mending good all damages including jointing pipes with Tyton joints as per manufacturers specifications and filling up the trenches all complete but excluding the cost of masonry or concrete work, if required.(i) Class LA 5 Dewatering by pumps including all leads. lifts and making all arrangement of dispisal 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 apporved 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 6 Supply of MS flange (slipper type) as per IS-6392 Table17 Thickness 12mm, 150 mm 7 Supply of M S blank flange as per IS 6392 table 20 thickness 12mm, 150 mm 8 Lowering any type Ductile Iron/cast iron pipes (DI) & specials and laying along trench at any depth as per specification and direction of the Engineer-in-charge.[For laying over ground. The rates shall be reduced by 10% and the rates so reduced shall be inclusive of cost of holding arrangements. 150mm 9 All types of CI specials (viz. Bend, Tee, Taper, Tail piece, Collar etc. size conforming to IS specification 1538:1993 a) socket & spigot endi) 80mm to 300mm 10 Cast iron double flanged single door swing non return valve generally confirming to IS 14846 having body, door cover in graded cast iron to IS 210 Gr FG200, body and door rings and bearing block of leaded tin bronze to IS 318 Gr LTB 2, hinge pin of ST AISI410 valves suitable for maximum working presuure of 10/16kg/cm2 and body tested 115/24 kg/cm2 150mm 11 Flange joint to C.I/D.I/M.S. pipe and specials including supply of rubber gasket.nuts,bolts, washer etc of best nquality to make the joint watertight at required hydraulic pressure all complete as per specification & direction of the E,I,C, 150 mm 12 Cast Iron double flanged manually operated sluice valves generally confirming to IS 14846:2000, having four faces and spindle nut of gunmetal inside screw non-rising type quality gunmetal /AISI 410 spindle seat tested to 10kg/cm2 and body tested to 15kg/cm2, flanges flat faced and drilled to IS : 1538 : 1993 painted black all over with asphalt base paint. Valves tested by closed end method , 150 mm 13 Supplying including cost of installation of cast iron mechanical compressionflange socket tail piece for connecting flange fittings to the plain(spigot) ends of CI/DI pipes, 150 mm 14 As Per AnalysisSluice valve chamber covered with 100 mm. thick R.C.C. slab(4:2:1) with stonechips and necessary reinforcement in two layers, 250 mm. thick brickwalls (4:1), 150 mm. thick cement concrete (6:3:1) with jhama chips in bed over one layer brick flat soling; All complete as per direction of the Engineer-in-charge. Diameter of valve 80 to 150 mm. Inside Measurement 900mmx900mmx1200mm. LXBXH 15 Filling in fondation or plinth by silver sand in layers not exceeding 150mm as directed and consolidating same bythorough saturation with water raming complete including the cost of supply of sand(Payment to be made on measurement of finish quantity) 16 Earth work in filling in foundation trenches or plinth with good earth, in layers not exceeding 150 mm. Including watering and ramming etc. layer by layer complete. With earth obtained from excavation of foundation. 17 Brick soling with picked jhama bricks including preparation of bed as necessary, with brick joints properly filled in and packed with powdered earth and including necessary cushion of similar material below the soling (and in between layers when more than one layer is used) complete as per direction. Single brick flat soling(thickness 75 mm.) 18 OrdinaryCement concrete M15(mix4:2:1)withh graded stone chips (20mm down) excluding shuttering and reinforcement 19 Sub Total 20 GST 18% 21 CESS 1%

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