REPAIR/MAINTENANCE OF STP PLANT INCLUDING MISC WORK AT AF STN NALIYA

Material and labour for repair & overhauling of 3 to 7.5 HP, 3 Phase monoblock pump set, taking out impeller, cleaning, descaling & greasing to bearings incl replacement of unserviceable parts such as bearings, gland flange, etc. Cleaning and varnishing the starter and rotar, winding, heating and drying replacement of burnt terminals of motor assembling in the pump with new packing materials nuts, bolts, washers checking alignment connecting all electrical/water connections,checking the vibrations & alignment, RPM,DOR, testing the pump sets of on full load, complete all as specified and directed. Notes:- (i) Cost of small U/S parts such as new packing materials, nuts, bolts & washers, gland bolt & packing, coupling bushes , coupling bolts shall deemed to be inclusive in quoted rate. (ii) Major unserviceable spares as listed below shall be measured and paid separately.

Supply and fix in repair of following parts for existing submersible pump set electric driven 3 phase 415 volt 40 HP complete all as specified and directed.

Motor bearing with housing . Make : SKF/NBC/TATA/FAG/ UBC.

Motor cooling fan

Cover bolts & washers

Impellar as per existing model complete

SS Sleeve (Gland Sleeve)

Pump shaft with studs and nuts for pump body.

Shaft seal of existing size

Motor connection plate with cover plate

Material and labour for rewinding the non-clog motor of 10HP to 15 HP capacity by means of cutting and removing existing burnt out winding completely cleaning and repair of slots and rewinding with new PVC insulated copper wire of existing gauge and size / turns, balancing of shaft, testing as per the specified RPM at workshop complete including replacement winding oil and oil seal complete all as specified and directed.

Pump bearing Make : SKF/NBC/TATA/FAG/ UBC.

Pump bush

SS sleeve

Impellar as per existing model complete

Pump shaft

Shaft seal of existing size

All as per serial item number 22.00 here-in-before but of capcity 3 to 5 HP

of pipe duly assembleed the new NRV etc complete. (iii) The quoted rate shall be inclusive of T&P required for taking out column pipe of any capacity and size of any length from open well.

Pump bearing Make : SKF/NBC/TATA/FAG/ UBC.

Pump bush

SS sleeve

Impellar as per existing model and complete

Pump shaft

Shaft seal /oil seal of existing size

Material and labour for taking out NRV of 80mm/100mm/125mm/150mm dia from open well including taking column pipe of any size and length, disconnecting of NRV from column pipe, reconnecting of NRV after servicing/repairing, lowering of NRV duly connecting the column pipe, replacement of worn out nut, bolts, washers etc complete all as specified. Note :- The quoted rate shall be inclusive of necessary T&P required for lifting and lowering of NRV from open well/neccessary drain out of water as required as per site requirement.

Pump bearing Make : SKF/NBC/TATA/FAG/ UBC.

Pump bush

SS sleeve

Impellar as per existing model and complete

Pump shaft

Shaft seal of existing size

Supply and fix in replacement of start push button of Green colour as per site requirement all etc complete all as specified and directed.

Supply and fix in repairs Power contactor TP AC-3 duty with 240 VAC Coil of capacity 40 Amps (MNX 40) incl with all necessary internal electrical connections and taking out unserviceable all etc complete all as specified and directed.

Supply and fix in repairs ammeter 415 volt, 3 phase digital type including necessary internal electric connection with suitable size copper wire & modification required for fitment as per site requirement complete all as specified and directed.

Material and labour in repairs activated carbon (IV-900) from carbon filter, cleaning the vessels from inside, painting the vessel with bitumen paint all etccomplete and supply and set activated carbon suitable for treatment plant installed at STP as per site requirement complete all as specified and directed.

Material and labour for repairs of Mild Steel Structure with framed work such grills, gratings etc with ends of bars shouldered and/or rivetted, or forged into spikes, framed guard bars, barred iron doors, ladders, framed balusters, walk ways, railings, framework of water tanks and similar work, portions framed and hung gates, including pintle hinges, stops, hand made sliding bolts etc as conforming to Fe290, Gde E-165 including two coats of paints of approved colour and including one coat of red oxide primer complete all as specified and as directed.

Material and labour in repairs of gravels and sand from filter media vessels including painting of the vessel with synthetic enamel paint both inside and outside surface all etc complete and supply and lay the media as per description give below :- Bottom layer : Gravel of 20-40mm nominal size (Thickness of layer as per site requirement). Third layer : Gravel of 12-20mm nominal size. (Thickness of layer as per site requirement) Second layer : Gravel of 2-6mm nominal size. (Thickness of layer as per site requirement) Top layer : Silica sand (1-2mm size). (Thickness of layer as per site requirement)

Excavation in trenches not exc 1.5 M wide and not exc 1.5 M in depth for pipe line, etc in hard/dense soil getting out and levelling of bottom surface to required level complete all as specified and directed.

Removing excavated material (Soils) from site to a distance not exc 50 M away and depositing where directed at a level not exc 1.5mtr above the starting point complete all as specified and directed.

Taking up GI/ Cast Iron /Ductile Iron water mains of size 100mm dia (including all fittings) with spigot & socket ends and lead/tyton joints including burning out lead joints and recovering lead complete all as specified and directed.

All as per serial item number 73.00 here-in-before but of size 50mm bore

Material and labour for refixing/relaying of old CI/DI/GI pipe and connections in new or old position in trench/floor of size 100mm dia all etc complete as specified and directed.

All as per serial item number 81.00 here-in-before but of size 150mm bore

All as per serial item number 81.00 here-in-before but of size 200mm bore

All as per serial item number 86.00 here-in-before but of size 150mm bore

All as per serial item number 86.00 here-in-before but of size 200mm bore

Supply and laying GI pipe of size 15mm bore, medium grade ISI marked including all fittings in old/new position as in walls and ceilling/trenches, complete all as specified and direct

Supply and fix in repairs PVC heavy duty sprinklers suitable for 25 mm dia pipe pop up type 360 degree & connected accessories all as per site requirement including taking out old u/s sprinklers complete all as specified and directed.

All as per serial item number 93.00 here-in-before but of size 20mm bore

All as per serial item number 93.00 here-in-before but of size 25mm bore

All as per serial item number 93.00 here-in-before but of size 50mm bore

All as per serial item number 93.00 here-in-before but of size 80mm bore

Supply and fixing of UPVC ball valves of size 50mm dia all etc complete as per requirement at site including taking out old u/s ball valves complete all as specified and directed.

All as per serial item number 100.00 here-in-before but of size 20mm bore

All as per serial item number 100.00 here-in-before but of size 25mm bore

All as per serial item number 100.00 here-in-before but of size 50mm bore

Supply & topup in replacement suitable compressor oil in air blower at STP complete all as specified and directed.

All as per serial item number 104.00 here-in-before but of size 25mm bore

All as per serial item number 104.00 here-in-before but of size 20mm bore

Supply only chemicals PE (Poly Electrolite) (STP Bio culture-Microbzz) duly packed in 1 Kg pouches required to achieve disired parameter of treated water for operation of the plant, at least one month requirement of the materials required shall be kept at site at a time etc complete all as specified and directed. Make : Microbzz/Greentreat

Supply and fix in repairs of flexible pipe of 40/25 mm bore complete all as specified and directed.

Supply only chemicals PAC (Sodium Hypo chlorite) required to achieve disired parameter of treated water for operation of the plant, at least one month requirement of the materials required shall be kept at site at a time etc complete all as specified and directed.

Supply and fix in repairs air blower pressure release valve 3" for root blower of capacity 760m3/hr, pressure rating upto 0.65 Kg/Cm2 for STP air blower application all etc complete as specified and directed.

Supply only 15mm bore gun metal gate valves/Check Nut valves with iron wheel head screwed both ends for iron pipe , ISI marked , as per IS : 778 complete including taking out old u/s valves complete all as specified and directed.

Material and labour in replacement of stainless stell pipe of 100/80mm dia including necessary welding, SS flanges, SS bend, SS nut, bolts, washer, gasket all etc as per site requirement complete all as specified and directed.

All as per serial item number 112.00 here-in-before but of size 20 mm bore

All as per serial item number 112.00 her

e-in-before but of size 25 mm bore

Complete removal of the wild grass/ vegetation from surrounding area of STP installations area and making the surface clear and plain and spraying roundup chemical on the same clean area as directed after removing and depositing the same at a distance not less than 50 mtr away from the site complete all as specified and directed. Note:- (i) T&P machinary will be provided by the contractor. (ii) Cleaning should be done as directed by Engr-in-Charge.

Scraping old existing paint from pipes of different sizes including making smooth surface and primer and applying two coat of synthetic enamel paint of existing/approved colour complete all as specified and directed.

Material and labour for removing old paint from surface of LT panel by scraping,rubbing and making good surface for painting and applying powder coated spary painting with existing colour complete as specified and directed.

Labour only for excavation muddy soil from pipe line leaked area upto desired depth including fixing clamp/collar joint/Lead Joint /new pipe/fittings of required type and size of pipe line, and stopping of leakage and checking of any leakage and returning filling of soil for 80 mm bore CI/DI pipe line complete all as specified and directed.

Material and labour for any welding work to arrest the leakages through MS flanges / bends /OHT & UG sump ladders/ headers /MS structures /any metallic pipe of any any size and length by providing welder all etc complete including cutting rusted parts complete all as specified and directed. Note :- (i) quoted rate shall be incluse of welding machine, welding rod etc required to carryout the work. (ii) Material such as GI/MS Pipe & MS shall be measured and paid under relevant items of schedule.

All as per serial item number 112.00 here-in-before but of size 50 mm bore

All as per serial item number 120.00 here-in-before but for 100 mm bore CI/DI Pipe.

All as per serial item number 120.00 here-in-before but for 150 mm bore CI/DI Pipe.

Supply only CI/DI mechanical collar Joint suitable for 200 mm bore CI/DI pipe line complete all as specified and as directed.

All as per serial item number 120.00 here-in-before but for 200 mm bore CI/DI Pipe.

All as per serial item number 124.00 here-in-before but for 150 mm bore CI/DI Pipe.

All as per serial item number 124.00 here-in-before but for 100 mm bore CI/DI Pipe.

Excavation in pot holes in soft/loose soil (or similar holes) each n exc 0.5 cum getting out, returning filling in and ramming earth to broken rubble mixed with earth around in layers not exceeding 25 cm, and removing surplus osil to a distance n exc 50m and making goood surface complete all as specified and directed

All as per serial item number 124.00 here-in-before but for 80 mm bore CI/DI Pipe.

Material and labour for PCC 1:3:6, type C-2 (using 40mm graded stone aggregate) as in foundations, filling and mass concrete complete all as specified and directed

Dismantling wrought iron or mild steel work of any description not otherwise provided for all etc complete all as specified and directed.

Supply and fix in repairs of steel work in tubular works (round or square)/(angle incl special shaped washer etc complete using ERW or induction buttt welded tubes as in verticle posts, trusses, purlins (beam, tee, angle, channel, flat, sections) including distance pieces, cleats etc confirming to IS-1161-1979 grade St-240 complete including taking out old u/s steel work complete all as specified and directed.

Supply and fix of mild steel screw bolts (machine made) length of bolt exc 22.5 cm and n exc 30 cm alongwith hexagonal or square heads at one end and screwe the other, or screwed both ends, each screwed end to be fitted with washers and one hexagonal or square nut, n exc 5 cm long and diameter of neck 11 to 15mm complete including taking out old u/s steel screw, nut bolts etc complete all as specified and directed.

Dismantling Plain or corrugated steel sheeting, any gauge, thickness, including Nainital or similar pattern roof coverings all etc complete all as specified and directed.

Supply and fix in repairs of pre-painted galvalume aluminium zinc coating GI base corrugated steel sheet 0.50mm thick of any colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fix with self tapping screws complete including taking down of old unserviceable GI sheet of any description and size complete all as specified and directed.

Supply and fix in repairs MS ring flange 15 mm thick for 200/150 mm bore to be welded to MS pipe/GI pipe including necessary welding work, new rubber gasket with necessary nuts and bolts etc, cutting out old unserviceable flange, complete all as specified and directed.

Material and labour for preparing new steel surfaces of any description, over 10 cm width, girth, not otherwise described and applying two coats of synthetic enamel paint over a coat of red oxide etc complete all as specified and directed.

Supply and fixing in repairs of 150mm bore HDPE Pipes class PN 10, ISI marked in any length with rubber ring joints, bends, tappers, MS nipple, MS flanged joints, laid in trenches or in floors/open and fittings etc complete all as specified and directed.

Material and labour for unwashed sand cushioning to underground cable including punning down of sand in layer complete all as specified and directed. Note : Punned down thickness shall be measured for payment complete all as specified and directed.

Material and labour in repairs of screw type sludge pump as per existing modelcomplete all as specified and directed.

Supply and lay unreinforced precast concrete cable cover Class LV, type 2 flat, size 300mm x 180mm x40mm in trenches as protection to UG cable complete all as specified and directed.

All as per serial item number 136.00 here-in-before but 100 / 80/ 50 mm bore.

Labour only for re-laying the serviceable XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured electric power cables (heavy duty) with aluminium conductor, earthed, graded cross sectional area 70/95 sqmm 3.5 core in trenches/fixed to poles/wall, complete all as specified and directed.

Supply, installation, testing and commissioning in repair of heavy duty chemical dosing system plunger type suitable to inject solution upto 25 LPH working pressure 10 Kg /Cm2 comprising dosing pump coupled with three phase electric motor of capacity 0.5 HP, 1440 RPM assembly with agitator in one motor, agitator with SS sweep blade duly FRP coated FRP tank 150 Ltrs, complete unit mounted on heavy duty MS fabricated frame duly anticorrosive paint complete with chemical grade PVC NRV, along with control panel for dosing pump suitable for Model SSAPS/CDSPT/25 made of powder coated MS fabricated box consisting of LED indicator, digital volt meter, amp meter, single phase preventor, high voltage low voltage protection including taking down old unserviceable dosing pump and necessary electrical interconnection all etc complete all as specified and directed. Make : Sri Satya Sai Aqua Pura / Declibac or its equivalent.

Labour only for taking out LT UG cables of 70/ 95 Sqmm by excavation and earth work in any type of soil, removing PCC covers of any size, staking serviceable cable for reuse complete all as specified and directed. Note :- Excavation, addl PCC covers and sand shall be measured and paid separately under relevant item of this Schedule.