Maintenance of water supply system Replacement of old distribution pipeline at Potziro area in V P Bogmalo in Dabolim Constituency

Earthwork in excavation by mechanical means (hydraulic excavator)/manual means in foundation pipeline trenches drain (not exceeding 1.5 m in width or 10 sq.m. on plan) including dressing of sides and ramming of bottoms lift upto 1.5 m including getting out the excavated soil and disposal of surplus excavated soil as directed within a lead of 50 m.;All kinds of soil;All types of Ordinary rock including all types of laterite rock blasting prohibited

Supplying of ASTM UPVC pipe conforming to ASTM 1785 with ISO 14001 etc. complete.;SCH-40 (blue)/(white);Dia in mm;90

Supplying at store or site of work of ASTM UPVC white fittings conforming to ASTM 2467 with ISO 14001 etc. Complete .;Coupler;Outer Dia in mm;90

Supplying at store or site of work of ASTM UPVC white fittings conforming to ASTM 2467 with ISO 14001 etc. Complete .;Elbow 90 Degree;Outer Dia in mm;90

Supplying cast iron fittings as per IS : 1538 -1993 including sealing rubber gasket (NR) CI Compression glands and coated MS Nuts bolts.;Flanged Socket Tail piece ( Flanged Adaptors);Nominal Dia in mm;80

Supplying at store or site of work including railway freight carting loading unloading stacking etc. C. I. Sluice valve conforming to IS : 14846-2000 and bearing ISI mark double flanged with cap. TYPE P.N. 1.0 (Class B );Nominal Diameter in mm;80

Conveying carefully from stack at site 250m from both sides rolling and lowering in trenches laying true to line and level and perfect linking for joints for P.V.C / H.D.P.E complete in all respects as per the direction of the engineer in-charge;90 mm OD

Jointing of PVC pipes of ASTM Schedule 40/ 80 with by cleaning the pipe and joining with solvent cement including the cost of solvent cement and hydraulic testing of joints etc. complete as per IS:7634-1975 Part 3, as per the direction of the engineer in-charge

Making joints to D.I/ C.I pipes with mechanical joints by nut bolts rubber rings that are provided with the jointsfor pushon tight joints and including the cost of rubber ring nut bolts for flanged joint including the cost of work force tools hydraulic testing of joints etc complete as per the direction of the engineer in-charge.;Flanged Socket;80

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 diamter in mm.;80