REPAIR AND IMPROVEMENT OF FILTER BED BUILDING AND FRESH WATER PUMP HOUSE AT NAVAL DOCKYARD, VISAKHAPATNAM UNDER GE(I) DM VISAKHAPATNAM

Amount

Material and labour for taking out existing filter media of size 7.5M x 5.5M x 1.6M carefully from filter bed ,stacking neatly after thorough cleaning and seggregating the media seperately as layers for reuse complete to make the unit completely functional complete all as specified and directed

Material and labour for cleaning of internal walls of filter bed after removing the filter media by jet spray and brushing with nylon brush and by using bleaching powder and complete cleaning of connected pipes of any material complete to make the unit completely functional complete all as specified and directed

Material and labour for laying only filter media (pebbles) of any size obtained from item No. 01 for reuse after proper cleaning/removing any algae,mud,sludge etc complete to make the unit completely functional complete all as specified and directed

Material and labour for laying only filter media (Coarse gravel/fine gravel) of any size obtained from item No. 01 for reuse after proper cleaning/removing any algae,mud,sludge etc complete to make the unit completely functional complete all as specified and directed

Supply and laying filter media with pebbles of naturally smooth surfaced of recommended sizes on layers complete to make the unit completely functional complete all as specified and directed

Supply and laying filter media with coarse gravel of recommended sizes on layers complete to make the unit completely functional complete all as specified and directed

Supply and laying filter media silica sand grade 14/30 mess sand(fine sand) in layers complete to make the unit completely functional complete all as specified and directed

M&L for overhauling of air blower of capacity upto 5hp 415 volts 3 phase alongwith repair/replacement of spare parts, such as gear oil,v belt, bearings, housing, welding if required making the unit completely functional complete all as specified and directed

Supply, fix, install test and commissioning CI sluice valve flanged type 300 mm dia PN 1.6 fitted with hand wheel including fixing to pipe line with gusket, nuts, bolts and washers complete including taking out old unserviceable sluice valve complete all as specified and directed

Supply, fix, install test and commissioning CI sluice valve flanged type 100 mm dia PN 1.6 fitted with hand wheel including fixing to pipe line with gusket, nuts, bolts and washers complete including taking out old unserviceable sluice valve complete all as specified and directed

Supply, fix, install test and commissioning CI sluice valve flanged type 80 mm dia PN 1.6 fitted with hand wheel including fixing to pipe line with gusket, nuts, bolts and washers complete including taking out old unserviceable sluice valve complete all as specified and directed

M&L for rewinding of Motor 5 HP after dismatling taking out from pump set base, transportation to civil workshop outside ND(V) if required, opening of complete motor, dismatling stator/rotor, rewinding the complete stator of motor with existing size of super enameled copper wire as per existing turn, heating, vernishing, replacement of both end bearing, Connecton plate, Connection terminals with new copper lugs for all 06 terminal, re-assemble, transport back to ND (V), reinstall at pump base, connection with pump coupling, making proper alignment , testing for satisfactory run complete all as specified and directed . Motor Make- Kirloskar

M&L for servicing, maintenance, repair, overhauling of Motor 5hp after dismatling taking out from base, opening of complete motor, checking for defective bearings, Connecton plate, Connection terminals, cable lugs, re-assemble, reinstall, at pump base, connection with pump coupling, making proper alignment complete all as specified and directed . Motor Make- Kirloskar

M&L for fixing of MS pipe of size 80/ 100/300 mm dia with required modification for increased/decresed length, cutting at position, making necessary welding work complete all as specified and directed.

M&L for rendering 10mm thick cement plaster 1:3 on fair faces of brick work or concrete surfaces incl dismantling taking out unsv plaster complete all as specified and directed.

M&L Mild Steel framed work with ends of bars souldered, welded or reveted or forced into spikes, framed guard bars, ladders,chequred plates framed balusters, walk ways, railings, gates, frame work of tank, valvepit and similar work incl painting with one coat of red oxide primer and one coats of anticorrosive black bituminous paint incl dismantling mild steel work of any description not otherwise specially provided for all as specified and directed.

M&L for applying three coats of white wash on old decorated surfaces after proper cleaning and removing dust on surfaces complete all as specified and directed

Supply and fix Bollard light of size not less than 08 watts to be fixed on proper PCC work along with smc box control wiring if required complete all as specified and directed

Supplying installing testing and commissioning of 11KW varaible frequency drive to be mounted in existing VCD panel in conjunction with existing system to enhance the power quality and efficiency of the pumps ACQ580-31-033A-4/e equivalents. The VFD must be designed specifically for the water and waste water market and shall be low harmonic solution without use of any external hardware(like filters/ transformers/additional feeders). The wiring topology shall be 3 wire in 3 wire out and shall be achieved using active rectifier topology based VFD with IGBT based converter including LCL filter on the line side & IGBT based inverter with DC bus capacitors. VFDs without DC bus capacitors are not acceptable. The VFD shall comply with IEX/EN 61000-3- 12:2007: limits for harmonic currents produced by equipment connected to public low voltage systems. the

input curent to the VFD shall have a total harmonic content less than 5% (THDI) of full rated capability at the input terminals of the VSD on a power system sized accroding to IEEE519-2012 at a line voltage unbalance upto 3% and under all motor load conditions with unity PF at from 50% load. Drive module shall comply IP21 EMC class C2 functional safety STO(SIL3-PLe), conformal coated to PCB suitable for 3c2, 3s2 environments and this product shall comply to CE, UL, CUL, Eco design, low voltage directive, ROHS, WEEE, RCM, EAC standards complete all as specified and directed. Make :- ABB or equivalent as approved GE.

S & F MS chequred plate of thickness not less than 8mm complete all as specified and directed.

M&L for dismantling of foundation PCC, taking out from pump house, carrying to dumping yard inside ND (V) and necessary cleaning of work site all as specified and directed.

M&L for cement concrete type B1 (1:2:4) with 20mm graded aggregate in foundation, filling in and mass concrete all as specified and directed.

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SATYAM ENGINEERS (BID ID -3136139)

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