NIT No. 03(2022-23) Item no.6

Repairing / Renovation of foundation of Pump of 18 MGD pump Set No. 4 by carrying out the following works:-Closing the sluice valve at suction & delivery side and disconnecting the power supply of the pump-set from LRS and electric Panel and covering the disconnected cables with tapes with proper safety & precautions with the help of all T&Ps as required.

Dismantling of pump & motor from each other, shifting both from old MS base-frame with the help of departmental EOT crane, by cutting the rusted nut & bolts by gas cutter & electric welding-set etc. with the help of specialized labour, and providing/fixing of blind flanges with rubber sheet, MS nut & bolt and fasteners etc. at suction & delivery ends as required to stop any leakage of sewage.

Breaking the old RCC foundation with the help of pneumatic hammer and manual labour etc. as required and cutting the old rusted bolts in the foundation and digging the foundation then removing the malba from pump house as required.

Fabrication of new M.S. base frame of as per site requirement by MS Channel Size 250X80X10 mm , sections, plates & flats etc. as required by cutting, sizing, welding, grinding & drilling etc. with proper cross support etc. and making holes for S.S. foundation bolts.

Grouting of SS foundation nut-bolts of size 20mm. as required.-10Nos.

Providing of off size Nut Bolt as per site requirement

Supply/ Fixing of Rubber Packing Sheet

Laying of new RCC foundation of as per site requirement in 1:4 ratio as required, by laying jaal of iron bars etc. and suitable shuttering, cement, concrete of suitable size etc. with the help of manual labour and others tool & machinery as required for laying the RCC in the form so that foundation can be settle as per requirement .This also includes proper finishing of foundation etc. as per satisfaction of engineer in charge.

Fixing of MS base frame on foundation bolts as per requirement, re-installation/re-assembling of pump-set as earlier on the new base frame, removal of blind flanges from delivery and suction side, re-bolting/tightening the pump with suction and delivery side properly with the help departmental EOT by using neoprene sheet, fasteners and studs etc. with all safety measures and checking the leakage from pump by operating the suction and delivery sluice valves etc. as required.

Realignment of pump-set on new foundation and base frame, making all electric connection good as earlier etc. as required.

Painting the new base frame by red oxide (2 coats) & black paint (3 coats) as per existing site requirement and satisfaction of engineer-in-charge.

Testing & commissioning of pump-set on new foundation on no-load and on load as required after operation of valves etc. and tightening of all nut-bolts in all respect. The job includes Cartage.

DEV ENGINEERS