REPAIR/MAINTANCE OF AHU,DUCT AND FILLTER AT VARIOUS LOCATION UNDER AGE E/M II IN GE(C ) KIRKEE

Amount

Dismantling and taking down existing deteriorated/corrded Air duct of any type complete with nutnbolts washers packing materials and MS bracket etc all as specified & all as directed by Engr-in-charge from ground level to opto 50ft height.

Supply, fabricate and errect PGI air duct made out of 20 gauge PGI sheet with necessary suport, jointing with MS angle/flat iron/MS strip etc, cut in to shape, drilled and counter sunk for screw including bending and welding, riveting and painting two coat of existing paint etc, complete and rubber packing suitable size fixed with necessary nut bolts and washers etc. incl taking down old PGI sheet complete all as directed by Engr-in-charge.

All as per Item No 2 above but 24 gauge PGI sheet

All as per Item No 2 above but 22 gauge PGI sheet Note For item 2 to 4 : (i) Shape of duct shluld be as per site requirement. contractor should visit site before quoting the rate. (ii) Quoted rate is deemed to be inclusive all the clothing, safty equipment and other T & P required for carrying out the repairs / maintence. (ii) Neccessary welding and fabrication work to be done at actual site as per existing at no extra cost.

Dismantling rusted/detorioted channel and angle of any size of verticle heavy duty support structure of ducting by cutting Gas set/cutting machinery tools from ground level to 50 ft height.

Material and Labour for Mild Steel brackets, frames ,supports and stands of type as required made out of angle iron, flat or strip of grade Fe-410-S of any size as per site requirement etc complete with painting two coat with synthetic enemel paint over a coat of red oxide all as specified and as directed by Engr-in-charge .

Dismantling and taking down old U/S insulation of supply air duct completed with rock wool/mineral wool slab with chicken wire mesh.

M&L for duct insulation with resin bonded fibre glass wool roll of density 24 kg/Cum, with factory laminated aluminium vapour barrier, thickness of insulation as specified and including the following: (a) M&L for cleaning the duct surface to be insulated by scrapping carefully with wire brush etc. to make the surface completely free of millscale, dirt, dust, grease and other foreign materials, taking special care so that all duct joints are sealed against any leakage. (b) M&L for applying rubber based adhesive CPRX compound. (c) M&L for sealing of all longitudinal joints and circular overlaps with and including Aluminium foil tape 50 mm wide, to make the insulation leakproof. (d) M & L for securing the insulation with and including mechanically fastened nylon/ steel straps of size 12 mm/50 mm at maximum intervals of 1.2 mtr length.

M&L for spray painting of E/M installation/ducting system with scrabing of old painting/rusted surface of E/M installation/ducting system and spary painting with two coats of luster paint as per colour code directed by Engr-in-Charge at site.

M&L for duct insulation with 13 mm thick nitric rubber insulation as specified and including the following: (a) M&L for cleaning the duct surface by scrapping carefully with wire brush etc. to make the surface completely free of millscale, dirt, dust, grease and other foreign materials, taking special care so that all duct joints are sealed against any leakage. (b) M&L for applying rubber based adhesive CPRX compound. (c) M&L for sealing of all longitudinal joints and circular overlaps with and including Aluminium foil tape 50 mm wide, to make the insulation leakproof. (d) M & L for securing the insulation with and including mechanically fastened nylon/ steel straps of size 12 mm/50 mm at maximum intervals of 1.2 mtr lenght.

Taking down old U/S air diffuser of any size as directed by Engr-in-charge.

S&F aluminium powder coated supply air diffuser minimum 22 gauge with MS volume control damper. All as existing at site

Dismantling of AHU/Blower Room of any capacity with complete accessories such as cooling coil ,air filters,blower motor, blower / drum ,blower shaft,side panels , and wall opening etc including removing of electric connection complete all as specified and directed .

Re-assembling/Refixing complete AHU/Blower Room of any capacity after cleaning, servicing to cooling coil, blower & filters by using CTC solution including remetling ,fine grinding blower shaft and hardening balancing , realignment to AHU shaft, replacing unserviceable blower fins ,replacing bearings two nos including inlet out let pipe welding,all electric connections etc all as specified and directed by Engr-in- Charge

Supply and fix double nitted polymer fabric HDPE fresh air filter washable/cleanable type having efficiency 95% to 99% down to particle size of 5 to 20 micron, fabricated out of CRCA sheet metal duly painted with two coat of grey hammer tone spray painted over two coats of red oxide primer, with lifting handle, Box/flanged type, aluminium spacer etc, all as specified by engr-in-charge of sizes 630 x 500 x 50mm.

Supply and fix double nitted polymer fabric HDPE fresh air filter washable/cleanable type having efficiency 95% to 99% down to particle size of 5 to 20 micron, fabricated out of CRCA sheet metal duly painted with two coat of grey hammer tone spray painted over two coats of red oxide primer, with lifting handle, Box/flanged type, aluminium spacer etc, all as specified by engr-in-charge of sizes 630 x 400 x 50mm.

Supply and fix double nitted polymer fabric HDPE fresh air filter washable/cleanable type having efficiency 95% to 99% down to particle size of 5 to 20 micron, fabricated out of CRCA sheet metal duly painted with two coat of grey hammer tone spray painted over two coats of red oxide primer, with lifting handle, Box/flanged type, aluminium spacer etc, all as specified by engr-in-charge of sizes 610 x 610 x150mm.

M&L for supplying and fixing Instruction board/flow board /flow chart /shock treatment chart of E/M installations as per the requirment at various locations made out of pre laminated board with digital printing,pasting side beadings of decorative aluminium channel with proper fixing arrengement etc.as directed by Engr-in-charge : - NOTE - (a). Before fabrication of the board, the contactor has to produce a paper printout detailing all dimensions and matter to be displayed so as to get it inspection and pass by Engr-in-Charge. (b). Matter to be displayed, colour of the ACP sheet and colour of Retro Reflective sheet will be as specificed and directed by Engr-in-Charge. (c). The quoted rate is deemed to be inclusive of cost of labour and materials required for fixing of the informatory board at the loaction as specified by Engr-in-Charge for size 4 ft x3 ft.

all as per item no 18 above but size ( 3 ft x 2ft )

Supply and fix aluminium powder coated return air linear diffuser minium 22 gauge. Note (i) Neccessary welding and fabrication work to be done at actual site as per existing at no extra cost.

Chaulya Enterprises

M/S. OM ENTERPRISES