Replacement of 250mm sluice valve on conveying main in Village Varcond in Pernem Constituency

Earthwork in excavation by mechanical means (hydraulic excavator)/ manual means in foundation pipeline trenches, drains not exceeding 1.5 m in width 10sq.m on plan including dressing of sides ramming of bottoms for all lift including getting out the excavated soil & disposal of surplus soil for all lead and in all types of soft stratas comprising any of the materials such as soil, silt, sand, clay, gravel, moorum of all varieties shingles, pebbles all types of conglomerates, laterite rocks, ordinary rocks, soft rock disintergrated rocks, fissured, shuttered/decomposed rock, weathered rocks and all such other materials as described under appendix A to these specification either in full or in parts as the case may be adopting any method / methods as may be convenient or permitted inclusive of chiseling, wedging etc, blasting prohibited and in all conditions such as dry , moist , foul, saturated submerged etc including providing barricading, danger lighting guarding and as per the direction of the Engineer-in-charge etc.

Supplying at store or site of work including railway freight, carting, loading, unloading, stacking etc. Ductile iron Sewage double flanged manually operated Sluice Valve generally conforming to IS: 14846 - 2000 having body, door, dome, gland in graded cast iron to IS:210 Gr. FG 260, four faces and spindle nut of leaded tin bronze to IS:318 Gr. LTB 2, inside screw of non-rising stainless steel AISI 410 IS 6603 GR 12 CR 12 spindle, Flanges drilled to IS:1538 Table 4 & 6. Valves tested by closed end method only (350mm and above will be fitted with BTB and gear box. and back seat bush.) TYPE P.N. 1.6 (Class A ); Dia in mm; 250

Hoisting laying cast iron sluice valves/butterfly valves/reflux valve of size given below at location in pipeline etc. complete as directed as per IS:2685-1971 CLASS I; Nominal diameter in mm.; 250

Supplying cast iron fittings as per IS : 1538 -1993 including sealing rubber gasket (NR) CI Compression glands and coated MS Nuts bolts.; Mechanical Compression Collar Coupling; Nominal Dia in mm; 250

Supplying at store or at site of work cast iron specials for mechanical and push on flexible joints as per IS:13382 - 1992 including Sealing rubber gaskets (NR), CI compression glands and coated MS Nuts bolts.; Double Socket Branch Flange Tee; Nominal Dia in mm; 250x250x80

Supplying at store or site of work including railway freight, carting, loading, unloading, stacking etc. cast iron kinetic double orifice air release valve, generally conforming to IS:14845, having small orifice elastic ball resting on a gunmetal orifice nipple and large orifice vulcanite ball seating in a moulded seat ring, with built in kinetic features, isolating sluice valve mounted in a horizontal position and operated by meter wheel gearing, inlet faced and drilled to IS:1538 Table 4 & 6 . TYPE P.N. 1.6 (Class A); Dia in mm; 80

Fixing C.I. Double orifice / Kinetic type air valve of following sizes with bronze ferrule at inlet screwed on isolating valve small orifice elastic ball resting valve small orifice elastic ball resting on small bronze orifice nipple and large orifice vulcanite ball resting on moulded seat ring inlet faced and drilled to BST "D" suitable to working pressure of 10 kg/sq. cm.; Nominal diameter in mm.; 80

Cutting of cast iron / ductile iron pipes by mechanical grinder working on electricity, including the cost of hire charges of mechanical grinder, diesel operated electrical generator set, suitable for supplying power for the grinder for cutting, cost of grinding blades , skilled work force, fuel.etc. required for completion of job as per the direction of Engineer- in -charge; Dia in mm; 250

Making joints to D.I/ C.I pipes with mechanical joints by nut bolts rubber rings that are provided with the joints, forpushon tight joints including the cost of work force, tools, hydraulic testing of joints, etc. complete as per the direction of the engineer in-charge.; Double socketed specials such as bends, collar couplings,etc.; Nominal Diameter in mm ; 250

Construction of masonry chamber 120x120x100 cm inside in 40kg/sq. cm brickwork complete with 23 cms wall thickness and in cement mortar1:4 ( 1 cement : 4 coarse sand) for sluice valve size beyond 200mm dia with necessary excavation, foundation concrete 1:5:10 ( 1 cement : 5 coarse sand: 10 graded stone ballast 40 mm nominal size) and inside plastered with CM 1:3 ( 1 cement : 3 coarse sand) finished with floating coat of neat cement complete and chamber cover as specified below etc. all complete as per standard drawing . (rate is inclusive of rate earthwork excavation, cost of surface cover and all other materials and labour and as per details below); with C.I. Surface box 100mm top dia 160mm bottom dia and 160mm deep of wt. 15kg inside with chain lid in 120 mm thick RCC slab cover in cement concrete 1:2:4 ( 1 cement: 2 coarse sand : 4 graded stone ballast 20 mm nominal size)

Construction of masonry chamber 90 x 90 x100 cm inside in 40kg/sq. cm laterite masonry in neatly dressed stones complete with 23 cms wall thickness and in cement mortar 1:4 ( 1 cement : 4 coarse sand) for sluice valve of sizes 100 mm, 120 mm 150 mm and 200mm dia with necessary excavation, foundation concrete 1:5:10 ( 1 cement : 5 coarse sand: 10 graded stone ballast 40 mm nominal size) and inside plastered with CM 1:3 ( 1 cement : 3 coarse sand) finished with floating coat of neat cement complete and chamber cover as specified below etc. all complete as per standard drawing . (rate is inclusive of rate earthwork excavation, cost of surface cover and all other materials and labour and as per details below); with C.I. Surface box 100mm top dia 160mm bottom dia and 160mm deep of wt. 15kg inside with chain lid in 120 mm thick RCC slab cover in cement concrete 1:2:4 ( 1 cement: 2 coarse sand : 4 graded stone ballast 20 mm nominal size)

Refilling the pipeline/foundation trenches plinth sides, foundation etc. with available excavated earth in layers not exceeding 20 cm depth consolidating each layer ramming and watering lead upto 50 M and all lifts and disposal of surplus earth as directed by Engineer in Charge.