Day-to-day repair/ maintenance of HDPE pipeline from Tawa-I borehole to Tawa-II Mine of Pathakhera Area

Amount

Item code 2.8.1 Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm 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.

Item code 2.25 Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift upto 1.5 m.

Item code 18.31.1.2 Providing and fixing C.I. sluice valves (with cap) complete with bolts, nuts, rubber insertions etc. (the tail pieces if required will be paid separately) : 100 mm diameter. Class II.

Providing ISI marked heavy duty C.I. air release valve and fixing it in 110 mm or 90 mm outer diameter exisiting HDPE pipeline of PN 12.5, including all fittings/ fixtures, such as nipple, socket, clamp, bolts, nuts, rubber packing, etc. all complete (as required).

Providing ISI marked heavy duty C.I. non-return valve and fixing it in 110 mm outer diameter HDPE exisiting pipeline of PN 12.5, including all fittings/ fixtures such as cap, bolts, nuts, rubber insertions, tail pieces, flanges, etc. all complete (as required): 100 mm nominal bore – Horizontal.

Providing & laying ISI marked HDPE (High Density PolyEthylene) pipes conforming to IS:4984, including cutting in required size, but excluding jointing, connections, fittings/ fixtures, trenching, & refilling. Pressure rating PN 12.5 & material grade PE 100, outer diameter 110 mm.

Providing & laying ISI marked HDPE (High Density PolyEthylene) pipes conforming to IS:4984, including cutting in required size, but excluding jointing, connections, fittings/ fixtures, trenching, & refilling. Pressure rating PN 12.5 & material grade PE 100, outer diameter 90 mm.

Leak-proof fusion jointing of 110 mm or 90 mm outer diameter HDPE pipe of PN 12.5 & PE 100, including cutting existing pipe, dewatering if required, arrangement of electricity using generator if required, and all other necessary equipment & consumables as per requirement, etc. all complete, except the cost of pipe piece, trenching, & refilling. Pipeline breakdowns must be attended and rectified at the earliest, preferably within 8-12 hours.

Leak-proof electrofusion jointing of 110 mm or 90 mm outer diameter HDPE pipe of PN 12.5 & PE 100, using suitable electrofusion coupler, including cutting existing pipe, dewatering if required, arrangement of electricity using generator if required, cost of coupler, and all other necessary equipment & consumables as per requirement, etc. all complete, except the cost of pipe piece, trenching, & refilling. Pipeline breakdowns must be attended and rectified at the earliest, preferably within 8-12 hours.

Leak-proof mechanical jointing of 110 mm or 90 mm outer diameter HDPE pipe of PN 12.5 & PE 100, using suitable mechanical coupler (nut-bolt type or screw type), including cutting existing pipe, dewatering if required, cost of coupler, and all other necessary equipment & consumables as per requirement, etc. all complete, except the cost of pipe piece, trenching, & refilling. Pipeline breakdowns must be attended and rectified at the earliest, preferably within 8-12 hours.

Total impact of GST for the purpose of CTC