NIT No-07 EE (SDW) II/ (22-23) Item No. 14

Fabrication/providing/fixing of manual coarse bar screen with other allied works at inlet raw sewage channel of 37MGD STP Okhla by carrying out following works including all the required works, materials, arrangements tools & tackles workmanship, safety arrangements & equipments as per NHRC guidelines etc. and as per site requirement, remodelling all the damages upto standard if occurred any complete in all respect satisfactorily. Arrangement of all safety equipments for the protection of staff to work at height and to make the working area free from all toxic gases and free from accident during working at site as per NHRC guidelines.

Desilting of channel without shutdown of sewage water by underwater divers removing of all floating material and grit from the bottom of channel with the help of manual and under water divers with full uniform. Making necessary arrangement to make the area workable and dumping the same outside as per site requirement.

Fabrication and fixing of MS ‘C’ channel guide in vertical possession of 14 mtr. long of size 125mm x 65mm on both side wall in the sewage channel for up and down of bar screen. Welding of MS plate with channel of size 200x200x8mm duly drilled 4 no. holes of 16mm at every corner of plate and fixing with anchor bolts of EN-8 materials of 16 mm.

Providing and fixing of MS I-Section bean of 17 feet height in vertical possession at ground with RCC civil foundation for making the outer structure. Tightening MS stud grouted in RCC foundation. The work includes providing and welding of MS. Plate with 4 nos. holes of 25mm drill.

Providing and fixing of triangular MS support (4 nos.) on the MS structure by complete welding process and cutting, welding, grinding and finishing of edges.

Making of RCC civil foundation with grouting of MS. Stud for fixing of vertical I- section beam and support of structure also includes the cost of civil material with labour charges.

Fabrication and fixing of MS platform for collecting the floating material removed from the sewage channel by bar screen. The size of platform is 2.5mtr x 1 mtr. Made out of frame by MS Channel 100x50x50x6mm, supporting angle 75x75x6mm, MS sheet 2.5mtr x 1mtr and 6mm thickness. Fixing on platform and tightening by MS fasteners.

Fabrication and fixing of railing on the platform for safety purpose of staff.

Providing and fixing of horizontal I Beam for fixing of wire rope hoist of 2 ton capacity with 2 mtr length duly welded and fixed by MS plate of size 250x250x10mm on Both end of vertical beam. Making lifting system for wire rope hoist by welding of heavy duty MS plate with hole and fixing of pin as per job requirement.

Providing and fixing of wire rope hoist with 5 mtr. Lift of 2 ton capacity with 3 phase electric motor of 2 HP, flanged modulate TEFC type. This crane will be work for lifting of bar screen up and down.

Fabrication and fixing of MS Bar screen (jali) of size 7 feet long and 6 feet width by fabricated of outer frame by MS Channel of size 75x75x6mm and inner portion fabricated by MS Flat of size 50x6mm duly welded one by one at 20mm gap in each flat and fixing in sewage channel by making of clamping system on upper side of bar screen for fixing of hook of wire rope hoist as per site requirement.

Fabrication and providing of MS. Stud in the workshop of size 300x20mm for grouting in civil foundation fabricated by MS. Rod includes the charges of cutting, grinding, machining and threading.

Fabrication and fixing of tin shed for safety purpose of complete system from the rain water fabricated by MS sheet of 3mm thickness, angle of size 50x50x6mm, flat iron of size 75x6mm, nut bolts and washer as per site requirement.

Providing of MS. Nut bolts with washer of various size.

Making electric connection providing and fixing of pannel box common for both bar screen by supply arrangement. Fabrication and fixing of MS cover for safety arrangement of pannel from rain water as per site requirement. The job includes providing and fixing of armoured cable of 16mm and LED light (2 nos.).

Painting and primer charges of newly making complete system by one coat of primer & minimum two coat of enamel paint of required shade & colour.

Testing & commissioning of complete system.

Jal Dhara Engineers India

MK ENGG.CO.