NIT NO.11, ITEM NO.04 (2022-23)WW-II

Dismantling of C.I Floor column 900 mm height, coupler of size 250 mm long and 60 mm dia., extended M.S spindle of size 40mm dia. X 3 mtr. and 18" dia. wheel by removing/cutting of nut bolt with the help of gas cutter and with the help of necessary tools & tackles and heavy manual labour and material handling equipment’s.

Safety equipment’s have to be arranged for the workers as the work has to be done in the deep drain channel of filter house. The same includes personal safety equipment’s for workers as gum boots, safety belt, helmet, hand gloves, safety shoe etc. This also includes arrangement of necessary safety equipment’s against any leakages of chlorine as there may be access chlorine in the drain channel any time.

Making of scaffolding arrangement in the deep drain channel with the help of plates, balli, iron rods for execution of work in safe manner so there may not occur any accident at site. This includes To & fro charges of all the required scaffolding material.

Dismantling of 450 mm approx. dia sluice valve by dismantling gland plate, gland housing and dome of sluice valve by removing/cutting of rusted nut bolt with the help of gas cutter and man power. The job includes dismantling/ removing the each part like spindle, GM nut, flap and GM rings of body for repairing/replacement and overhauling.

Taking out the dome of the sluice valve, Gland plate and gland housing from the drain channel of the filter house to outside of the filter house and then to the workshop with the help of heavy labour, lifting & rolling arrangement in a safe manner without damaging the sluice valve and other civil structure.

Fabrication and fixing of New C.I. Gland Housing of the 450 mm Backwash/clear water valve as per sample.

Fabrication and fixing of New C.I. Gland Housing of the 600 mm clear water valve as per sample.

Repairing of gland housing by making new bearing seat of proper size of thrust bearing and maintain the size by completely machining work as per spindle size.

Repairing of dome by cutting / removing of damaged portion with machining work. The job i/c fabrication, machining and fixing of MS bush for avoid the loosing of spindle making new bearing seat of proper size of thrust bearing and maintain the size as per spindle.This also includes supply of GM nut for 450mm valve as per sample.

Providing and fixing of thrust bearing No. 51110 for 50 mm dia. spindle. Make:- SKF/FAG/ DJB Approved.

Repairing of 50 mm dia. S.S. Spindle by remetalling on the damaged portion, the job i/c machining, re-threading, finishing etc.

Repairing of G.M. ring of both side in the body of the valve by remetalling, machining and finishing to make its original shape and size as required by job. Also includes the charges of Re-fixing the same in body of valve.

Providing & Fixing of GM ring of both side of flap by cutting/removing of old GM ring by machining work and making proper size by finishing cut in the grove of flap and body with the help of machining work. Fixing of ring on the original position as required by job and making final rubbing cut to make the valve leakage proof.

Repairing of CI flap by repairing of GM nut groove in the flap for accurate fixing of GM nut. Fabrication and fixing of MS flat by drilling and threading in CI flap and tightly fixing by using of nut bolts and washer with proper machining / alignment and operation with flap as per requirement by job.

Re-assembling of sluice valve with above dismantled parts with required hardware goods as nut, bolt, washers, neoprene rubber packing etc. This includes fixing of the valve in its original position. loading/unloading of repairable parts to workshop to & fro. This also includes testing of sluice valves against any leakages.

Fixing of C.I Floor column, coupler & extended spindle, wheel etc. with the help of necessary tools & tackles and heavy manual labour and material handling equipment’s. This includes the charges of minor civil work with material.This also includes replacement of all nut-bolts with new one as per site requirement.

Painting of sluice valve,floor column with two coat of enamel paint of required shade &colour.make of paint: Asian/Berger/Nerolac.

MK ENGG.CO.