NIT 06 (24-25)HP-II Item No.7

Dismantling of old rusted, worn out delivery pipe portion including bend portion of size 600 mm dia. in between NRV & Pump delivery expander potion having length of 3.5 Mtrs. after dismantling it from Dismantling Joint form NRV side & from flange from Pump deliver side after cutting all rusted nut bolts. This job includes closing of suction & delivery sluice valves & cutting of the pipe piece into two portions after cutting nut bolts with the help of gas cutter & then taking out that two pipe pieces one by one with the help of EOT Crane & manual labour by maintain all the safety precautions & transfer it to old material store with the help of Hydra Crane.

Braking of thrust block for supporting the delivery line for smooth taking out the delivery line pipe pieces & for dismantling them with the help of electric hammer & manual labour. This job includes rebuilding of the thrust block including all the cost of the civil raw materials after fitting the new deliver pipe & completion of work to give support to the line & to avoid the vibration of the line.

Supply & making of 600 mm dia. 3.5 Mtrs. long delivery line along with required bend made out of 8 mm thick MS Sheet/ Plate & supply & making 02 nos. Flat Face/ SW Flanges having OD - 825 mm, ID - 600 mm, Sheet Thickness – 25 mm, Number of Drill Holes – 20, Drill Hole Dia. – 25 mm made out of 25 mm thick MS Sheet Plate. The job also includes the cost of lathe machine charges for machining of inner sides, outer sides & both side surfaces of the flanges (02 nos.) & drilling charges for making 20 nos. holes for each flanges of 25 mm dia. by heavily skilled workers.

Welding charges for double layer welding of in between joints of delivery line, delivery line bends, flanges & delivery line & double layer (longitudinal) to prepare MS plate into MS pipe piece & double layer welding of collar joints between delivery pipe pieces.

Providing of full threaded MS Studs of size 25 mm thickness and 500 mm long with Nuts & Washers for Dismantling Joint.

Providing of Neoprene Rubber Packing for insertion in between flanges joints in delivery pipe.

Providing & fixing of “O” Ring Rubber Packing in the Dismantling Joint for avoid the leakages.

Fixing each part of delivery pipe with the existing flanges both in NRV side with Dismantling Joint & in Pump delivery side with the help of EOT Crane & manual labour after fixing Neoprene Rubber Packing & “O” Ring Rubber Packing in flanges with the help of manual labour. After that fixing the Nut Bolts & Washers in the flanges both side & tightening the same. Also, to ensure the NRV & delivery side existing line re-fixing. After that removing the old rusted threads of the Dismantling Joint of NRV with the help of gas cutter & fixing the new MS threads on the Dismantling Joint with ensuring proper support to the NRV & delivery line with the help of Dismantling Joint. After that fixing the collar in the gap between delivery line pieces with the help of EOT Crane & manual labour by confirming collar to act as a joint between two delivery line pieces to have suitable welding in the collar joints.

Charges for providing & fixing of corrosion resistance rubber coating above the newly fixed pipe after application of paint & primer.

Transpiration charges of the supplied materials, manpower, tools & tackles, safety gadgets etc. To & Fro.

Testing & Commissioning charges of the executed work On Load after opening both suction & delivery sluice valves & starting the P/Set & running for a duration.

Raj Engineering Co.

V.K. ENTERPRISES

M/s S.G. Enterprises

SUSHMA ENTERPRISES

Darshan Engineering Works