NIT No.22 Item 02

Controlling of sewage flow with controlling of all related gates and with the help of gunny bags placed on both side of the bar screen in the 30 feet deep gaseous sump and removing the same after completion the work.

Dismantling of machinery i.e. gear box, motor, top roof sprocket at a height of 15 feet by the help of chain pulley block, gas cutter, welding machine and manual labour etc. as required.

Providing / fixing of lock assembly for comb made out with CI bushes, squire bar double roller chain having 1 inch pitch & MS sheet with nuts & bolts etc. as required by replacing the existing lock assembly.

Repairing & overhauling of gear box including repairing, worm gear, fixing of new bearing, oil seal and providing of gear oil. Replacement of V Belts 6 Nos as per sample. Cleaning of the complete rusted chain and lubrication the same.

Servicing of bar screen motors with replacement of bearing and motor varnishing.

Supply of MS angle iron of 75X75X8 MM for fabrication of bar screen Jaal for the space of bar screening chamber in 30 feet deep sump of size 12X6 feet frame.

Supply of MS flat bar of size 50X10 mm 40 Nos. of 6 Feet each for fabrication of bar screen jaal for the space of bar screening chamber in 30 feet deep sump of size 12X6 feet frame.

Supply of MS C type channel of size 125X65X8 mm for support the bar screen Jaal from the back side and to fix the complete frame in the walls with the help of these C type channel.

Fabrication of the Bar Screen Jaal of size 12X6 feet frame with the help of Angle iron ,Flat Bar and C type Channel and fixing it in the bar screen jaal area in the screening chamber in 30 feet deep gaseous sump with the help of C type channel with all safety equipment and precaution. Note: The fabrication of the Jaal will be as per actual dimensions and suitable for the existing structure of the existing bar screen as per the decision of Engineer-in charge.

Supply of Limit switch 10A-600V AC suitable for bar screen

Repairing/Overhauling of existing conveyor belt rollers including all spares,tool and tackels as required

Repairing of control panel board for operating the bar screen including replacement of contactor, Amp. Meter, Volt meter, indicating lamp & wiring of the panel and fixing the limit switches with the existing non-working switches. Painting the same panel with spray coated paints.

Painting the complete bar screen with one coat of primer and 2 coats of enamel paint after the completion of work.

Supply/fabrication of tin shed for the safety of the control panel of size 5X5X7 Feet by the Angle of 75X75X8 MM with the roof covered by sheet of 16 SWG & supported by the angle under the roof. Fixed on the floor by the help of concrete work and painting the same.

Dewatering of sewage water and access sewage water entering into the working area for making the surface workable and to avoid misshaping by the sewage water and safety of the workers after fixing the gunny bags. Note:-Payment will be made as per the actual pumping done at site during the execution of work.

Testing & commissioning the bar screen after completion of job in all respect including providing all safety equipments during execution of work.

Providing and fixing of damaged Jaal of size 11X3 Feet made out of 35X35X5 MM angle iron and 12 sq. mm MS bar 42 Nos. at the incoming sewer sump after bar screen area.

Supply of 1X1X0.01 Meter MS sheet.

Strengthening of Header line No.2 by shaping the supplied sheet (S.No.18) in the exact shape of the line by bend block, gas cutter and welding the same ,in the valve distribution chamber .

Supply of 100 MM Double Flanged Sewage water application CI Sluice valve PN 1.0 for fixing in the valve in distribution chamber Make:Kirloskar,IVC,Dorot,any DJB approved make

Providing and fixing of 4 feet long 8MM thickness 100MM dia MS flanged pipe with CI Sluice valve (S.No.20) 100MM in the valve distribution chamber for the control of flow of access water from sump to valve distribution chamber with the help of civil work.

VS ENGINEERING COMPANY