SPECIAL REPAIRS TO PIPELINES, COOLING TOWERS AND CONNECTED WORK AT SEAKING SIMULATOR, INS GARUDA, NAVAL BASE KOCHI

Amount

Supply and laying in replacement chiller water pipe line dia 100 MM and fitting made out of MS pipe Heavy Class pipe with all controls & fittings complete with materials along with necessary clamps, vibration isolators and fittings such as tees, bends,etc adequately supported on rigid supports etc all as specified and directed. Note: Any connected works related re-routing of existing condenser piping lines, welding/fabrication works and necessary pipeline supports shall be included in quoted rate.

Taking down old us pipe insulation over chiller pipe line, fixing new thermocol/puff insulation of 25 mm thickness, covered by polythene sheet, wire mesh and insulation shall be closed cell type with compression strength and thermal conductivity suitable for chilled water circulation pipe lines all as per site requirement. The entire insulation shall be tightly covered with 26 gauge aluminium cladding. All disturbed surfaces shall be made good as existing complete all as specified and as directed by Engr-in-Charge.

Supply, laying in replacment GI pipe line of 150 mm dia medium grade laid in trench/floors/walls including welding, connecting and painting two coat of synthetic enamel paint all as specified and directed. Make:TATA/Jindal.

Supply, laying in replacment GI pipe line of 100 mm dia medium grade laid in trench/floors/walls including welding, connecting and painting two coat of synthetic enamel paint all as specified and directed. Make:TATA/Jindal Note for item No 3&4 : Any exacavation and refilling and making good to disturbed sarface to be done by the contractor and the rate for the same shall be deemed to be included in the above quoted rate.

Supply and installation PN 1.6 manual butterfly valve of sizes 150 mm complete all as specified and directed.

Supply and installation PN 1.6 manual butterfly valve of sizes 100 mm complete all as specified and directed.

Supply and Fixing in repair CI 'Y' strainer of size 150 mm dia in condensing/chilled water line complete dia including modification of pipe line for fixing the strainer and replacement of flanges and nuts & bolts, packing etc all as specified and directed by Engineer Incharge. Make:Advance/Leader/Castlers/Sant

Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 25 sq mm 4 core complete all as specified and as directed.

Supply aand fixing in replacement of temperature gauges for existing pipe lines of central AC plants as per suitable size and model complete all as specified and directed

Supply and fixing in replacement of analouge pressure gauge for existing pipe lines and plants as per suitable (dia) size and model including MS bend pipe upto gauge where required at site complete all as specified and directed.

Supply and charging Refrigerant Gas R 22 in sealed cylinder including pressurising with nitrogen gas as per OEM recommendation and flush out water vapour mixed gas and vacumising complete system and leak testing and charging gas all as specified and as directed by Engineer in Charge. Note :- 1.Nitrogen will be measured and paid seperately 2.Empty cylinder will returned to contractor after usage

Supply only Nitrogen gas contains 12 PSI of pressure in each cylinder of 6 cum complete all as specified and directed

Supply & fixing of replacement of 13 mm thickness Thermal Insulation of exposed area of ducting covering on Out door chiller water pipe lines using Class O Nitrile Rubber outer sideof exisitng pipelines using manufacturer's recommended Rubber based Adhesive in a blend of solvents complete as per Specifications. Make : K Flex / aerocell

Supply & Fixing Chilled water sensor with controlling cable as suitable for exising chiller socket/groove in Voltas chiller units all as specified and as directed.

Supply ands fixing in replacement of Microprocessor control panels VLRP type working with 15VAC for voltas control panels, make for 5H model central AC plant as suitable for not less than 60 TR and fitting for existing panels. Make: voltas (Soft hard)

Supply and fixing in replacement Pressure suction transducer sensor (setra) complete all as specified and directed

Supply and fixing in replacement Discharge pressure (setra) complete all as specified and directed

Supply and fixing in replacement Oil transdusers (setra) complete all as specified and directed

M & L for servicing of existing CT fan motor of capacity 5 HP including disconnectiong electric connection, fan blade and opening motor, taking out bearing and re-metalling the bearing housing shaft, replacement of motor bearing of existing size including transportation from existing location to workshop and back, refixing of electrical connections , testing of RPM after repair , balancing of fan, recommissioning complete all as specified and directed by Engineer-in-charge.

M & L for servicing of existing chiller pump of capacity 12.5 HP after disconnecting electric connection from foundation, removing defective bearing, re-metalling the bearing housing shaft, replacing with new bearings, gland bush, gaskets, gland packing, nut and bolt, air release valve, cooling fan cover and reassemble, refitting and recommissioning including refixing of all electrical connections, testing, painting, base foundation work alongwith channels/accessories, incl transportation to local workshop and back after repair, testing complete all as specified and directed by Engineer-in-charge.

M & L for servicing of existing condenser pump of capacity 15 HP after disconnecting electric connection from foundation, removing defective bearing, re-metalling the bearing housing shaft, replacing with new bearings, gland bush, gaskets, gland packing, nut and bolt, air release valve, cooling fan cover and reassemble, refitting and recommissioning including refixing of all electrical connections, testing, painting, base foundation work alongwith channels/accessories, incl transportation to local workshop and back after repair, testing complete all as specified and directed by Engineer-in-charge.

Supply and replacement in repair round type cooling tower sprinkler aluminium with distributer pipe & stay rod suitable for capacity 120 TR all as specified and directed. Make of Cooling Tower : Paharpur/Mihir/Delta.

S&F in replacement of PVC Fills of size 150x300x600 mm,with fine quality all as specified and directed.

Taking down the unserviceable dual plate check valve, Supply and fix dual plate check valve of size 150 mm dia including replacement of old nuts & bolts, packings modification of flanges if necessaery and all as per specified and directed.

M & L for removal of complete FRP cooling tower including fan CT motor, fills, sprinkler/nozzle, pipes, valves and preparation of damaged surface and apply FRP sheet and suitable chemical solution (min two coat) of required quantity to make it leak proof and complete re-assembling including replacement of old nuts, bolts and washers, fin support structure, fan structure, repair/replacement of drain pot, float valve etc as per site requirement including refixing of all removed items back fitting and alignment of CT fan and sprinkler/nozzle and make it vibration free smooth functioning including repair/renovation of PCC foundation pillars and PCC hard standing (100 mm thick type C2 (1:3:6) 40 mm graded aggregate over 100m thick hardcore gauge n.exc 63 including surface dressing removing of surplus soil/PCC all around the cooling tower area of PCC 15 sqm) of capacity 120 TR. complete all as specified and directed.

Supply and fixing plastic mesh heavy duty, mesh size less than 10 mm X 10 mm for cooling tower with necessary fixing arrangements all as specified and as directed by EIC

Supply, fabrication and fixing name index board of AC plant having size of 1.2 mtr x 0.6 mtr x 5 mm thick incl writing letters on board as directed by Engr-in-Charge with 0.25mm thick white rubber coated vinyl sheet or synthetic vinyl sheet printed with computer/scotch inject printing with without ink and laminated with average 15mm thick high quality weather protected calender film (coated/laminated and transparent/mat finish) pasted with chemical on and including polycarbonate PVC weather protected milky white/transparent sheet and finally thorough washed with liquid detergent soap complete board to be fixed on wall including cost of all materials used and all as specified and directed. Note : Approval of Engr-in-Charge shall be obtained for letter size before the manufacturing the name boards.

Supply and fixing of cooling tower fan blade including hub and connected accessories of capacity 120 TR CT fan with suitable length (approx 300mm to 450mm) / as per existing at site and size with aluminium alloy material with necessary nuts, bolts, and washers complete all as specified and directed. Note: 1. All minor accessories/ left out items shall be replaced and the rate for the same is deemed to be include in the above quoted rate. 2. All nuts and bols shall be replaced with SS nuts & bolts 3. Alignment of fan blade & testing to be done after repair work.

Supply and fixing of water flow / pressure differential switch, 5-15 Amp, complete all as specified and directed.

Materials and labour for earthing complete with galvanised iron earth plate electrode of size 600 mm x 600 mm x 6 mm thick, burried directly and vertically in ground, earth pit not less than 2.25 Mtr deep below ground level with top edge of the plate not less than 1.5 m below ground level connetced with and including galvanised earth strip of size 32 x 6mm (Upto length of 7.5Mtr strip including) by means of nuts, bolts, check nuts and washers made of galvanised iron or steel earthing lead to be protected by galvanised iron pipe 40 mm bore (medium grade) and other end connected to earthing test point or lightening arrestor or main controlling switch as directed including providing funnel with 20mm bore galvanised iron pipe (light grade), wire mesh, charcoal or coke and common salt in alternate layer of 15cm (compacted thickness) all round the earth electrode, concrete earth pit in PCC (1:3:6) type C-1 (with 20mm graded aggregate), 50mm thick precast RCC (1:2:4) cover slab (re-inforced with 8mm dia complete all as specifed and directed.

Supply and fixing and connecting up Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe as directed/specified for loop earthing etc as required of galvanised iron strip of size 32 x6 mm complete all as specified and directed. Note; This item shall be measured for the quantity used at site after the length of strip 7.5 Mtr complete all as specified and as directed.

Supply and fix in repair Pre filter with filtering capacity down to 20 micron including side aluminum beading of size 600mm x 600mm x45mm at site as specified and directed by Engineer in charge.

M& L for painting of central AC plant cooling tower with two coats of synthetic enamel spray paint of existing colour paint after preparation of existing surface 120TR capacity all as specified and as directed

M& L for painting of central AC plant including 60 TR x 2 Nos of chiller units i.e including of compressors, condensers, pumps and motors frames, panel board complete including chiller and condensing water pipe lines with two coats of synthetic enamel spray paint of existing colour after preparation of existing surface of each unit and marking set numbers, SM/MES numbers all as specified and directed.

M & L Steel structural fabrication works fabricated from structural steel sections including nuts,cable trays,clamps bolts,washers, welding ,bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primary coat, one under coat and one finishing coat of paint complete all as specified and directed.

Supply and fixing of Hard PVC Piping 40 mm up to drain disposal area with nitrile rubber insulation complete all as specified and directed.

M & L for Cleaning of 2 Nos shell and tube condenser shell with capacity of 60 TR by isolating the condenser shell, disconnecting water inlet/outlet completely remove the exisiting water from condenser attach necessary hoses to condenser to circulate chemical solution (maic / hydride decaling compound) by using pump for 3-5 hrs and remove the system and after opening both sides of condenser brushing with nylon rod and flushing with fresh water including replacement of gaskets complete leak test (if reqd) and testing as directed by Engineer-in-Charge. Note: (i) Nitrogen gas for leak test shall be measured and paid seperately

Supply and fixing in repairs ball valves, high pressure of PTMT with epoxy coated aluminium rod and high density plastic bal screwed for iron pipe and fixed of size 25mm (Minimum weight 25mm - 455 gms)

Material and Labour for fire dampers (fusible link) with actuator arrangement complete all as specified and as directed

M & L for servicing of existing AHU motor of capacity upto 25 HP including fan after disconnecting electric connection from motor terminal and opening the motor cover, re-metalling the bearing housing shaft, replacing with new bearings of existing size, cleaning , re assembling including transportation from existing location to workshop and back, refixing of electrical connections, testing after repair , refixing of blower belt, alignment with blower with motor structural frame work and complete painting, recommissioning all as specified and directed by Engineer-in-charge.

M & L for taking down AHU blower from the site, replacement of bearings and bearing supports, cleaning the surface and aligning the blades for smooth functioning and refixing after repair, refixing of belt, alignment with motor, recommissioning all as specified and directed by Engineer-in-charge.

Dismantling of AHU panels including cooling coil, foundation channels, AHU motor & blower, cooling coil, pan and dismantling of old tiles, fixing of new coloured non skid ceramic tiles 7 to 8mm thick (square / rectangular) area of each tile exceeding 0.11 sqm, in floors etc set and jointed in neat cement slurry and pointed in white or coloured cement to match including 10mm thick thick screened bed in CM 1:4 complete ( approx 22 Sqm ) and refixing of cooling coil pan, cooling coil, AHU motor & blower and AHU panels including all connected items after repair work and leak arresting and testing complete all as specified and as directed

M & L for Welding/cutting of MS Pipe/Rail/MS flanges etc at various locations of AC Plants including with all necessary tools and equipements all as specified and directed.

Supply and fix electric shock proof floor mat near electric panel in AC plant of suitable size 2m x 1m of min thickness 10mm complete all as specified and as directed by Engr-in- Charge

Supply and fix poly vinyl chloride floor mat in AC plant after filling the pits in floor (if required) and fixing the mat as per existing surface of suitable size with thickness of 3mm, colour light blue complete fixing materials all as specified and as directed by Engr-in- Charge

AR Traders (BID ID -3171141)