NIT26Item5

Safety equipments have to be arranged for the workers as the work has to be in the Pump House with proper safety of Men & Machinery. The same includes loading, unloading & cartage charges etc.

Repairing/Renovation of 500 mm dia. NRV of P/set No. 1 at Khyala Phase-II BPS by carrying out the following works: - Cutting of nut bolts of delivery line Dismantling joint, Sluice valve &NRV of both end Flange with the help of gas cutter. Taking out the specials from the delivery line one by one like Dismantling joint, gap piece from the line, providing support to the delivery line & finally taking out NRV from the delivery line &putting them on safer Place in the pump house. Fixing of blank flange on both side of delivery line by providing of nut bolts & rubber packing sheet.

Lifting of complete Non return valve with the help of H.O.T/E.O. T crane & loading in the tempo for taking it to workshop for servicing & renovation purpose including unloading in the workshop & cartage for the same.

Cutting and opening of all nut bolts of N.R.V body cover plate. Lifting of body cover with the Tri pod chain block arrangement & manual labour arrangement. Taking out complete Disc with disc arm & Shaft from the N.R.V body by lifting with the help of Tri pod chain block arrangement & manual labour arrangement. Cleaning of body seat ring of N.R.V from inside by chemical solution and polishing by manual arrangement. Cleaning of disc retaining seat ring by chemical solution, emery paper etc. and polishing as required.

Making of damaged collar seat in the NRV body of both sides block for resting of disc holding shaft block. The job includes grinding, machining and special C.I welding as required to make a proper size.

Renovation of disc holding blocks& disc arms by fixing of new bushes in the bore as per the size of NRV shaft. The job includes removing of worn-out seat & making of proper size & fixing of new bushes.

Supply of cover bolts & seat as required at site

Supply of Rubber packing Sheet.

Supply of bushes for disc holding shaft as per requirement at site

Supply of Nut Boltsas per requirement at site

Supply of cover plugas per requirement at site

Supply of Hinge Pin. (SS-410)as per requirement at site

Supply of hinge pin lock nutsas per requirement at site

Fixing of complete disc with arm, shaft in N.R.V body by proper matching of both the seat rings of body & disc, Fixing of body cover with the help of Tri pod chain block arrangement & manual labour arrangement etc. Taking out blank flange from both ends & fixing of N.R.V & other specials of delivery line like gap piece, dismantling joint with the help of HOT/EOT crane lifting arrangement etc. after replacing of rubber gasket & damaged nut bolts & tightening of nut bolts with spanner etc. as required by job.

Transportation charges to & fro for T&P items, men & material at site & their handling etc.

Devraj Enterprises

M G Traders and Engineers

JAI DURGA ENGINEERS AND CONTRACORS

MK ENGG.CO.