NIT 9 ITEM 7

Removing of filter media and Gravels dumping out of the filter house manually near filter house up to 150 to 200 meter including soluble excavation by mechanical hydraulic excavator/ Manual earthwork for every addition lift 1.50 m and extra rate of quantities of work excavated is on under water and or liquid inlet pumping out water as required

Dismantling of RCC Tee, Header, RCC slabs and carried out site at filter bed of complete drainage system as per direction of plant in charge

S/o 75mm dia. 6 kg./cm2 HDPE pipe for air header line Make:- ISI/Any DJB approved (PE-80)

75 mm dia. end cap (Heavy Duty)

Fabrication & Supply of Rubber "O" Ring for fixing Header Tee 75 mm.

Fabrication & Supply of 80x80x80 MM size cement concrete tee as per sample

Supply & Fabrication of one side threaded J Hook as per sample. Heavy Duty

Fabrication & Supply of "U" type CI clamps for covering 75 mm dia. pipe. Heavy Duty.

Supply & Fabrication of one side threaded other side "U" type MS coupler with rubber.

Welding of flanges both side of air header pipe as per sample requirement.

Supply of 90 mm dia. MS pipe B class

Make:- TATA/ Jindal

Supply of hardware items like nut bolt washer, hardener etc. as per requirement. MS bend with packing sheets of CC TEE with P/f of 80 mm dia. and required MS Pipe as per sample

Erection of complete system as air header pipe making group of RCC TEE for Fixing the rings, installation of TEE with proper alignment and leveling, welding of pipe with fitting & J Hook and clamp with bolt in proper way as per filter bed design

Provision for Pre-cast Slab as per filter bed design to cover the CC Tee & HDPE pipe with allied system

Supply of gravels of filter beds of 4 sizes as per filter bed specification as per requirement of size. 1. 50mm-37mm, 2. 37mm-12mm 3. 12mm-6mm 4. 6mm-2.5mm

Fixing of sluice Valve inside of C.I. Body by chain block with lifting arrangement with manual labour. Fixing of rubber packing and upper dome by chain block with proper arrangement along with G.M. Nut and Spindle & tightening of nut bolts with spanner, fixing of Gland Dori and Gland Plate etc. with the help of manual labour arrangement etc. as required by job.

Filling of gravels as per instruction of plant in charge with cleaning the gravels of different 4 sizes separation gravels by the water washing to remove the soil dust etc. each size collect in each group

Filling the media in bed taken from 150 Mtr away in the plastic beg by manually make proper way surfacing and maintain the level as per site in charge (job including cleaning & washing of FMS) After testing the bed again filling the media because level decrease in bed.

T & P Charges

J.P.S. ASSOCIATES