NIT No. 20, Item No.02 (2025-26)

A. Renovation of Telescope scouring system. Safety equipments have to be arranged for the workers as the work has to be done in the telescope scour chamber etc.

Dismantling of existing transmission system responsible for upward and downward movement of upper M.S pipe over the M.S cup shaped pipe for replacing of its damaged parts from the telescope scour chamber by going down in the telescope scour chamber with all safety measures.

Dismantling of the upper stand of telescope scouring system of clarifier after cutting / opening of foundation of stand and removing of bearing system from top taking out wheel from the spindle etc.

Dismantling of the complete telescope scouring system and its allied accessories such as tee, bends, C.I valves and other allied equipments in the telescope scour chamber after cutting the old rusted nut bolts with the help of gas gutter and heavy manual labour etc. as required.

Taking out telescope scouring system and its allied accessories from the scour chamber with the help of chain pulley and manual heavy labour and shifting the same up to JE store etc. as required.

Fabrication of new M.S pipe of approx. size 1050 mm long 250 mm dia and 8 mm thick. The job includes making provision for smooth flow of water from the top of telescopic pipe by welding of U-channel on top of pipe as per site requirement .

Fabrication of new hanging support made out of M.S fist as per existing design and shape.

Replacement of M.S /C.I flange from the top of existing fixed pipe of telescopic system along with rubber sheet and nut bolts to avoid leakage from the pipe.

Making and fabrication of new threaded spindle made out of SS 304, the size of spindle is 2.5 m approx. and 25 mm dia duly threaded and cutting of groove for locking system in the bracket for movement of driving wheel .

Making and fabrication of M.S / C.I wheel along with G.M nut duly threaded as per spindle thread and fixed in the wheel for smooth functioning of telescopic spindles.

Fabrication and supply of M.S floor column of size as per sample made out with M.S pipe and M.S plate of 10’’X10’’X10 mm for fixing the telescopic spindle and wheel etc. as required.

Making and fabrication of M.S double girder of size 150 mm X 80 mm of length 10 feet each duly welded with M.S plate of size 10”X10”X 10 mm for fixing the M.S floor column made out of M.S pipe and M.S plate for telescopic spindle etc. as required.

Making and fabrication of new M.S jall on the top of telescope chamber 8 feet X 6.5 feet size with angle size 50 mm X 50 mm X 6 mm with intermediate angle of length & feet ( 02 Nos) with 20 mm M.S square of ( 41 Nos) etc. as required.

Making & fabrication of new MS Jall on the top of telescope chamber of size 8 feet X 3.5 feet angle 50 mm X 50 mm X 6 mm with one no. 8 feet angle with intermediate of size 50 mm X 50 MM X 6 mm with 20 mm M.S square of (41 Nos). The gap between two square bas shall be 40 mm approx. etc. as required.

Fabrication and making charges of M.S ladder in the telescope scour chamber approx. 30 feet depth made out of M.S angle iron of size 50 mm X 50 mm X 6 mm with path made out of M.S angle iron of size 50 mm X 50 mm X 6 mm at a distance of 18’’ approx.

Re-installation of the dismantled telescope scouring system and its all the items of telescopic system including rectified transmission system responsible for upward and downward movement of M.S pipe fixing of top of the regulating system with complete in all respect.

B. Renovation of Scour valve regulating system. Working platform arrangement at site of work this includes such as plates, balli. Jacks, chain pulley block and chains etc. to & fro and its loading and unloading complete and its dismantling after completion of work.

Going down in the scour chamber and dismantling of existing holding system of extended shaft removing of couplers from shaft and existing system from the shaft by cutting of nut bolts with the help of gas cutter.

Cutting the nut bolts of all the flanges in scour chamber and taking out complete sluice valve, pipe, and other specials with the help of tripod chain pulley block arrangement and heavy manual labour arrangement.

Supply of 300 mm dia Pipe of 8 mm thick. Make:- Jindal/ TATA.

Supply of 100 mm M.S C-class pipe. Make:- Jindal /TATA.

Supply of M.S bend for 100 mm pipe as per sample.

Supply of 300X300X 300 mm M.S tee as per sample.

Supply of 300 X 100 X 300 mm M.S tee as per sample.

Supply of 300 mm Dia M.S flange as per sample.

Supply of 100 mm dia M.S flange as per sample.

Supply of 250 mm dia M.S pipe 8 mm thick. Make:- Jindal / TATA.

Fabrication charges of M.S pipe of different sizes as per site requirement by welding pf flanges in the pipe for fixing of sluice valves and other specials in the pipe line etc.

Fixing charges of M.S pipe and specials in the deep scour chamber by fixing of new nut bolts & washers and rubber sheet after down sluice valves and other accessories in the deep scour chamber.

Fixing charges of existing telescopic pipe line after fixing of new telescopic pipe line in place of damaged one.

Primer and painting on complete telescopic pipe line after fixing of new and existing system with synthetic enamel paint.

Making and fabrication of extended spindle of size 6 meter long 40 mm dia size.

Making and fabrication of coupler for joining extended spindle with sluice valve spindle.

Making and fabrication of bracket holders for giving support to the extended spindles. The job includes fixing of brackets on the scour wall with the help of heavy duty fasteners. Fixing of M.S angle iron support with the wall for holding the bracket for free movement of extended spindle.

Supply of bearing bracket for holding the extended spindle as per sample.

Required civil work for repairing of broken wall after fixing of complete pipe line and specials. The job includes minor and major civil work including plastering etc.

Testing of complete system on load the job includes to & fro transportation of tool and tackles.

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