SPECIAL REPAIRS TO FILTRATION PLANT AND ALLIED WORKS AT NAD PUMP HOUSE AT NAVAL STATION KARANJA

Amount

Material and labour for opening carefully and re-fixing, testing vertical type pressure water filtration plant of capacity 200000 ltrs/ hrs fabricated from mild steel plate with two dish ends one at top and one at bottem of plant, including one main hole at top dish and one hand/ inspection hole on vertical sheel of the plant, distributer/ collector, frontal pipings, operating valves, back wash pipe lines, air vent pipe with air release valves, including taking out existing sand sludge of filter media from filtration plant, taking out existing quartz pabbles of any sizes complete and depositing near site at a distance not more than 100m apart from the starting point including washing complete after removal of sand and quartz pabbles, cleaning the filtration plant form inside and refixing, testing complete all as specified and as directed by Engr-in-charge. Note: The frontal piping, valves, fittings, fixtures required for smooth functioning of pressure filter pant not covered into the schedule are deemed to be included in quoted rates.

Material and labour for filling and laying of quartz pabbles in filter bed of filtration plant complete all as specified and as directed by Engr-in-charge.

White quartz pabbles of size 1" to 3/4" not less than 125mm thick layer.

White quartz pabbles of size 3/4" to 1/2" not less than 100mm thick layer.

White quartz pabbles of size 1/2" to 1/4" not less than 100mm thick layer.

White quartz pabbles of size 1/4" to 1/10" not less than 100mm thick layer.

Quartz sand of assorted sizes- not less than 915mm thick layer.

Material and labour for painting work for MS pipe /filter plant by scrapping out old paint removing dents preparation of surfaces and painting with one coat of black/ blue colour synthetic enamel paint and two coats of exterier weather proof paint complete all as specified and as directed by Engr-in-charge.

Supply and fix in repair butterfly valve with matching flanges, gasket of 200mm dia complete all as specified and as directed by Engr-in-charge.

Supply and fix in repair sluice valve (ISI marked) flanged and drill both ends cast iron body, heavy duty brass spindle type PN 1.6 with and including jointing rubber gasket, nuts, bolts of size 300mm bore complete all as specified and as directed by Engr-in-charge.

All as per ser item No. 05 here-in-before but 200mm bore.

Taking down MS water main 100mm dia (including all fittings), with flanged ends including disconnecting pipes and fittings / flanged joints complete all as specified and as directed by Engr-in-charge.

Supply, laying, testing and commissioning of MS ERW pipe class 'B' in standard length conforming to IS 1239 part -I (ISI Marked) duly painted with two coats of synthetic enamel paint of first quality over a coat of primer for 100mm bore complete all as specified and as directed by Engr-in-charge.

Taking out cast iron water mains (including all fittings) with spigot and socket ends and lead joints including burning out joints and recovering lead for 300mm bore complete all as specified and as directed by Engr-in-charge.

Repair /replacement and dismantling and taking down for overhauling of pump set 7.5 HP, of M/S Kirloskar Ltd including provision of replacement of following defective parts as required. (a) Bronze impellar suitable for 7.5 HP pump set- 01 Nos (b) Ball bearing suitable for 7.5 HP pump set- 01 Nos (c) Bronze bush suitable for 7.5 HP pump set- 01 Nos Re-assembling complete set including connecting and testing in accordance with manufactures instructions to ensure stipulated performance as desired to the entire satisfaction of dept complete all as specified and as directed by Engr-in-charge. Note: Painting of external portion complete set with allied parts after scraping with enamel paint is deemed to be included in quoted rate.

Opening the complete motor and removing the complete burnt out winding wire of the stator of the motor removed under ser item No.10 here-in-before, cleaning the stator with cleaning element, preparing the surface and rewinding with super enameled copper winding wire of pre existing gauge of approved quality by Engr-in-charge, filling the slot with insulating material like fiber sleeves, tapes according to classification of motor, varnishing, heating, etc., and reassemble after repairs including testing and commissioning for rated RPM to the electric motor 7.5 HP capacity of centrifugal pump sets complete all as specified and as directed by Engr-in-charge.

Supply and fix in repair fully automatic star- delta starter with the facilities of single phase preventer, having relay range 20-24 Amps enclosed in outdoor type MS enclosure consisting of Voltmeter, Ammeter etc., complete all as specified and as directed by Engr-in-charge.

Supply, laying, jointing and testing DI pipe with DI flange ends including all fittings, nuts, bolts, special class K-9 300mm dia in any length, rubber gasket joint suitable for 300mm bore ductile iron pipe spigot and socketed joint spun laid in above the ground/ trenches with all accessories complete all as specified and as directed by Engr-in-charge.

Excavation in trenches not exc 1.50m wide and not exc 1.50m in depth for laying water mains and getting out in soft / loose soil including trimming sides and forming bottom surface to the required level/ slope etc., complete all as specified and as directed by Engr-in-charge.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25cms in each layer as in soil complete all as specified and as directed by Engr-in-charge.

Removing excavated material (soil) to a distance not exc 50m and depositing where directed at a level not exc 1.5m above the starting point complete all as specified and as directed by Engr-in-charge.

Material and labour for cement concrete in foundation concrete type C-1 1:3:6, (Using 20mm graded stone aggregate) to serve as trust block for water pipe line complete all as specified and as directed by Engr-in-charge.

SREE HARITHA ASSOCIATES