SPECIAL REPAIRS TO OPERATION THEATRE BUILDING NO. P-01 AT MH UNDER GE STM CHENNAI

Amount

B/R PORTION :

Dismantling of floor, hearth or wall tiling including cement mortor bedding (but not backing) and removig serviceable tiles to store and rubbish off the premises.

M&L for non -skid coloured ceramic joint free tiles 7 mm to 8 mm (Square/rectangular) area of each tiles exceeding 0.18 sqm but not exceeding 0.36 sqm, in floors etc. set and jointed in neat cement slurry and pointed in coloured cement to match with colour of tile , over and including 15mm thick screed bed or bedding layer in cement mortar 1:4 for laying floor finishes complete all as specified.

M&L for non -skid coloured ceramic joint free tiles 7 mm to 8 mm (Square/rectangular) area of each tiles exceeding 0.06 sqm but not exceeding 0.11 sqm, in floors etc. set and jointed in neat cement slurry and pointed in coloured cement to match with colour of tile , over and including 15mm thick screed bed or bedding layer in cement mortar 1:4 for laying floor finishes complete all as specified.

M&L for glazed coloured ceramic joint free tiles of size 350mmx250mmx7mm thick / 450mmx350mmx7mm thick on vertical surfaces such as skirting, dados and risers to step etc set and jointed in neat cement slurry and pointed in coloured cement to match with colour of tile , over and including 10mm thick backing coat in cement mortar 1:3 complete all as specified.

M&L for cutting chases, pinning in and making good to facings where required and pointing in cement mortar 1:3 to ends or edges of landings, steps, cills, sunshades, shelves, lintels, etc.; and cutting chases for concealed water tubing or concealed conduit wiring, etc., and making good, cutting not exc 10 cm girth complete all as specified .

Taking down GI water tubing and connections of 20mm bore complete all as specified

Taking down GI water tubing and connections of 25mm bore complete all as specified

Supply and lay CPVC pipes SDR 11& plain CPVC SDR 11 fittings on walls/ceiling or laying in floors of outer dia 20 mm complete all as specified

Supply and lay CPVC pipes SDR 11& plain CPVC SDR 11 fittings on walls/ceiling or laying in floors of outer dia 25 mm complete all as specified

S&F brass elbow of 20mm suitable for CPVC pipe outer diamter of 16mm complete all as specified

S&F brass Tee of 20mm for CPVC pipe outer diamter of 16mm complete all as specified

S&F brass elbow of 25mm for CPVC pipe outer diamter of 16mm complete all as specified

S&F brass Tee of 25mm for CPVC pipe outer diamter of 16mm complete all as specified

S&F in repair Vitreous China wash down water closet (pedestal pattern), white (excluding flushing cistern and flush pipe) including pedestal pan and trap, connection to drain (or outgoing pipe) and to flushing pipe, anti syphonage pipe, seat cover etc complete all as specified and directed

S&F in repairs vitreous China wash basin with pedastal white, flat back, of size 550mm x 400mm including 32mm waste fittings, brass, chromium plated for glazed ware basins, including bottle trap and other connections etc., with long screwed shanks and fly-nuts, flange end bedded in red lead cement and other end fixed complete all as specified

S&F in repair Vitreous China Urinal, Half stall type of size 345mm x 320 mm x 560mm ,of approved colour including suitable fixing arrangements to wall with and including CP urinal spreader, CP domed waste coupling and waste pipe complete, all as specified and directed.

S&F in repairs PVC low level flushing cistern of 10 litres capacity complete with ISI marked body and ISI marked syphon (Make shall be Parryware Slimline or equivalent) complete all as directed

S&F in repairs PVC connections 15 mm size with PTMT nuts of length 600mm

S&F in repairs fancy type chromium plated brass angle cock with flange, screwed down, high pressure, with crutch handle, screwed both ends for iron pipe of 15mm dia or for unions complete all as directed

S&F in repairs bib cock long body with flange, fancy type chromium plated brass screwed down, screwed for iron pipe, 15 mm bore or for brass ferrule complete all as specified

S&F in repairs pillar cock, fancy type chromium plated brass screwed down, high pressure, with or without lettered ‘HOT’ or ‘COLD’ with long screwed shanks and fly nuts, screwed for 15 mm bore complete all as specified

S&F in repairs CP brass wall mixer for mixing hot & cold water screwed down for iron pipe & fixed with provn for connection to over head shower with bend pipe complete all as specified

S&F in repairs tubular towel rail CP brass 20mm dia, D type, 60cm long between flanges all as specified

S&F in repairs chromium plated brass 125mm shower roses with or without swivel joints, any size, including fixing to steel pipe or union complete all as specified

S&F in repairs Bib cock two way double handle with flange, fancy type chromium plated brass screwed down,screwed for iron pipe, 15mm bore or for brass ferrule and fixed all as specified Make : Prayag- Cat Part No 8312 or other equivalent as approved by GE

S&F in repairs chromium plated brass cascade health faucet with minimum 1200mm long pipe of fancy type all as specified. Make :Parryware Cat No.BEA-86 or other equivalent as approved by GE

S&F in repairs stainless steel Soap Dish complete all as specified.Make : Jaquar AHS-1531

S&F in repairs toilet paper holder with flat recessed type stainless steel

S&F in repairs for stainless steel peg set of six

S&F in repairs Shelf of PTMT fixed with and including chromium plated brass screws and wooden / plastic cleats (Minimum weight 300gms) complete all as specified

S&F in repairs sinks with drainage board made of stainless steel 1mm thick kitchen or laboratory with plugs, washers and wastes; including bedding in cement mortar on to dwarf wall or including fixing cantilever brackets and connecting union to pipe, overall size 915mm x 460 mm bowl size 410 mm x 330 mm x 160 mm complete all as specified

S&F in repairs sinks with drainage board made of stainless steel kitchen or laboratory with plugs, washers and wastes; including bedding in cement mortar on to dwarf wall or including fixing cantilever brackets and connecting union to pipe, of overall size 1200x 475x 400 suitable for operation theatre complete all as specified

S&F in repairs 25 mm bore of Gun metal globe or gate, valves with iron screwed both ends for iron pipe and fixed complete all as specified

M&L for 20mm thick Granite (of any type) work (table rubbed and polished) in steps, jambs, pillars, window cills,cooking platforms and like bedded and jointed with grey cement slurry and pointed with white cement mixed with admixture of pigment to match the shade of granite stone including grinding and polishing of approved quality of any size set and jointed in grey cement slurry laid over and including 15 mm thick screed bed in CM (1:4) including polishing the granite stone by using mechanical grinder and moulding edges compete all as specified and as directed.

S&F in repairs PVC gully trap with cover of size 125mm including PCC bedding as required complete all as specified

S&F in repairs 75mm PVC (SWR) floor trap, plain with grating including jointing with solvent cement complete all as specified

Taking down eaves gutters and rainwater pipes (any size or pattern), including all fittings, heads, shoes, bends, swan-necks, etc., including cleaning or refixing or removal to Store (measured overall as fixed along the centre line over fittings and accessories) complete all as specified

S&F PVC (SWR) pipes single socketed 75mm bore of type 'B' in any length with rubber ring joints laid in trenches or floors or fixed on walls complete all as specified.

S&F PVC (SWR) bends with access door 75mm bore complete all as specified

S&F 75 mm PVC (SWR) branch piece, single (single Y) equal or unequal with acces door complete all as specified

S&F PVC SWR vent cowl 75mm bore complete all as specified

S&F PVC (SWR) pipes single socketed 110mm bore of type 'B' in any length with rubber ring joints laid in trenches or floors or fixed on walls complete all as specified.

S&F PVC (SWR) bends with access door 110mm bore complete all as specified

S&F 110mm PVC (SWR) junction single (single T) equal or unequal with acces door complete all as specified.

S&F PVC SWR vent cowl 110mm bore complete all as specified

Taking down chowkats or frames with shutters (without taking off shutters from frames) exc. 1.5 Sqm but n. exc 4 Sqm each including making good disturbed surfaces complete all as specified.

Taking down chowkats or frames with shutters (without taking off shutters from frames) n.exc. 1.5 Sqm each including making good disturbed surfaces complete all as specified.

Taking down shutters of any description area exc 2 Sqm each and refixing in same opening after necessary repairs complete all as directed.

Taking down shutters of any description or type area exc 1.00 Sqm and n.exc 2 Sqm and refixing in same opening after necessary repairs complete all as directed.

S&F solid PVC door frame of size 50mm x 47mm made out of 5mm plain colour PVC sheet reinforced with M.S. Square tube,design with 2mm thick Moulded prelam PVC Sheet on the front face & 2mm plain colour PVC sheet on back face supplying & fixing in opening including making good to the jambs as per specification and as directed.

S&F factory made solid PVC moulded door Shutter, with wood free EPS, 28 to 30mm thick (stiles), with 2, 4, or 6 raised panel design with 2mm thick Moulded prelam PVC Sheet on the front face & 2mm plain colour PVC sheet on back face, supplying & fixing in frame at site as per specification & drawing complete all as directed by Engineer-in-charge.

S&F powder coated aluminium (minimum thickness of powder coating 50 micron) work for doors, windows, ventilators and partitions (Fixed portions) with extruded built up standard tubular sections / appropriate Z sections and other sections of approved make conforming to IS: 733 and IS:1285, fixing with dash fasteners of required dia and size, including necessary filling up the gaps at junctions, i.e. at top, bottom and sides with required EPDZM rubber/ neoprene gasket etc. (aluminium sections shall be smooth, rust free, straight, mitred and jointed mechanically wherever required including cleat angle) aluminium snap beading for glazing/ paneling, C.P. brass/ stainless steel screws etc complete all as specified and the directions of Engineer-in-Charge

S&F Powder coated aluminium door and window shutters, aluminium section weighing 0.55 kg/ m including necessary joining cleats, glazing clips, ruber neoprene packing, handles 2 Nos in each door, hinges, anodised aluminum snap beading screws etc. complete all as specified

S&F double action floor spring hydraulically regulated made up of minimum 1.25 mm thick aluminium alloy sheet foundation box, main body with stainless steel cover, governing pivot made of brass, other parts made of mild steel heavy duty and fixed all as directed.

Hacking out broken glass any thickness, size, quality, from wooden frame/steel frames fixed with putty or with wooden beads complete all as directed .

M&L sheet glass ordinary quality of 4.00 mm thick ,not exceeding 0.5 Sqm in each pane complete all as specified

S&F 5.5mm thick sheet glass, ordinary quality and fixed glazing clips of standard size in square exc 0.5 sq.m in each pane complete all as specified

S&F Figured glass 4mm thick, pin head type and glazing with oil putty in squares not exceeding 0.5 sqm in each pane complete all as specified

S&F in repairs prelaminated particle board exterior grade, 18/19 mm thick prelaminated both sides with decorative choice lamination, fixed with screws to timber frame work as in shelves/ cupboard shutters and partitions complete all as specified .

S&F 6mm thick teak wood lipping for 18/19 mm thickness of particle board complete all as specified

S&F 30mm width ontinuous (piano) hinges, mild steel, bright finish or electro galvanised complete all as specified

S&F 100mm size butt hinges, extruded aluminum alloy with galvanised mild steel hinge pin,anodised and fixed, type C-21 complete all as specified .

S&F extruded aluminum alloy handles,150mm fabricated type anodized complete all as specified.

S&F Alluminium anodized, barrel tower bolts of 150mm long extruded section and fixed complete all as specified.

S&F stainless steel curtain rods of 25mm dia (Drapery rod) heavy duty all as specified and as directed

S&F stainless steel brackets suitable for 25mm dia curtain rods complete all as specified and as directed

S&F stainless steel decorative finials suitable for 25mm curtain rods complete all as specified and as directed

M&L for complete removal of existing treatment of any description from walls and applying two coats of plastic emulsion paint over a coat of wall putty and alkali resistant primer over plastered and other surfaces of walls including necessary preparation of surfaces complete all as specified and as directed.

M&L for preparation of old painted wooden surfaces of any description not otherwise described, over 10 cm in width or girth and applying one coat of synthetic enamel paint complete all as specified.

Demolition of brick work built in cement mortar including all precast concrete articles, all quions ,arches , pillars etc complete all as specified .

M&L for old size brick work with fly ash bricks straight or curved on plan and 6 metre mean radius built in cement mortar 1:6 complete all as specified

M&L for old size brickwork with fly ash bricks straight or curved on plan to any radius in half brick thick walls built in CM 1:4 complete all as directed

Taking down cement or cement lime plaster, on brick or stone walls,ceiling etc. including raking out joints, hacking for key, scrubbing down with water, etc.any description complete all as directed

M&L for rendering 15mm thick on fair faces of brick work or concrete surfaces on internal wall surfaces in cement mortar 1:6 , finished even and smooth without using extra cement complete all as directed .

M&L for rendering 15mm thick on fair faces of brick work or concrete surfaces of wall in cement mortar 1:4, finished even and smooth without using extra cement complete all as directed .

M&L for rendering 10mm thick on fair faces of concrete surfaces on ceiling in cement mortar 1:3 , finished even and smooth without using extra cement complete all as directed .

M&L for preparing newly plastered surfaces of ceilings and applying three coats of white wash complete all as specified and directed .

M&L for preparing newly plastered surfaces of walls and applying two coats of oil bound distemper on untreated plastered surfaces of walls overand including a coat of wall putty and a coat of alkali resistant primer complete all as specified

M&L for formwork to flat ,rough finished of concrete surfaces to sides and soffits of floor or roof beams, beam haunchings, girders, bressummers, lintels, cantilevers, shelves etc including supports, overhangs, etc. also splays between floors and beams, etc. complete all as specified and directed .

M&L for reinforced cement concrete 1:2:4 type B1 using 20mm graded stone aggregate as in beams,cantilevers,bressummers,lintels over 1.5m etc complete all as specified. Note: Reinforcement shall be measured and paid separately under relevant item.

M&L for Mild steel TMT bars 10mm dia & over of grade Fe 500,cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends & binding with & including mild steel wire (annealed) not less than 0.9mmdia or securing with clips quality complete all as specified

M&L for Mild steel TMT bars 5mm dia & over upto & including 10mm dia of grade Fe 500 in stirrups, spacers & binders, cut to length, bent to shape required, binding with & including mild steel wire (annealed) not less than 0.9mmdia or securing with clips quality complete all as specified

M&L for dismantling of wall and ceiling boards (fibre, pulp, insulation, etc.) or insulation boards / slabs/blankets, any thickness, including cover fillets complete all as directed .

S&F in repairs SS with PPGI ceiling panel 50mm double skin demountable panel made of 0.8mm SS 304 sheet on inside and 0.47mm thick PPGL. Sheet on out side with PUF infill of 40 kg/m3 density, food grade sealant for seamless and airtight finish, weighty bearing capacity of 150 to 200 kg/Sqm with hanging arrangement and hardwares. including coving R 70 aluminum coving wall to ceiling and 3D corner coving complete all as specified and directed by Engineer-in-Charge .

S&F suspended false ceiling grid system of size 600x600mm with main runner 38x24x0.25mm cross tee 24x26x0.25mm and wall angle 24x24x0.35mm. Ceiling suspended with 4mm dia GI wire hanger fixed with steel dash fastner, butter fly clips, hold down clips etc (Main runner, cross tee& wall angle of MS galvanised with PPPCGS) including 6mm thick HPSC self textured design pre primered Anti-Microbial ceiling tiles (Passed Antifungal test as per test method AATCC 30part 3) fixed to false ceiling boards suitable for false ceiling grids complete all as specified and directed.

S&F in repair stainless steel wire cloth 0.36 mm nominal dia of wire and average width of aperature 1.40 mm and fixed with wooden beading or with nuts and bolts to existing steel windows/wooden windows complete all as specified and directed .

M&L for removing the existing roof treatment of any description completely and brushing the cleaned surfaces of concrete with neat cement slurry @ 3Kgs of cement per sqm complete all as specified and as directed.

M&L for 10mm thick screed bed in cement mortar 1:3 mixed with water proofing compound over the roof surface as a levelling course , finished even and smooth without using extra cement while the concrete is green complete all as specified and directed. Note : WPC shall be measured and paid separately.

Supply only Liquid water proofing compound

M&L for APP Modified prefabricated five layer water proofing membrane, not less than 3 mm thick and weighing not less than 3.80 kg/Sqm reinforced with non woven polyester matt black finished over compatible primer @ 0.3 Litres per Sqm, and a bonding bitumen of VG-10 at 1.20 kg/Sqm torching the membrane on whole surface uniformly while unrolling the membrane by LPG and sealed with trowel after necessary preparation of surface complete all as per manufactures instructions and finally finished with a coat of bit mastic aluminum paint @ 0.10 litre/Sqm over a coat of blown bitumen 85/25 grade @ 1.20Kg/Sqm over the membrane. The over lap joint shall be provided of 75mm in longitudinal direction and 100mm in transverse direction respectively. All the angles, abutments and the drainage outlets shall be sealed with extra care to ensure full bondage including preparatory work and removing existing membarene treatment completely. Note: The work shall be carried out by the Authorized applicators of Manufacturers and documentary proof in support of the same shall be produced by the contractor before execution of work at site.

E/M PORTION :

Taking down carefully copper/ Aluminium point wiring (light, fan, socket or power) complete including fitting such as switches, ceiling roses, pendants, regulators, sockets,and removing the material from wall / ceiling etc, and making good the disturbed surfaces and taken as credit all as directed.

M&L for point wiring with 1100 Volts grade 1.5 Sqmm PVC insulated FRLS unsheathed 1100 Volts with multistranded copper conductor conforming to IS:694:1990 with ISI marking (For Phase, Neutral and Earth) in and including non metallic PVC rigid conduit medium grade with ISI mark of size 20mm dia with all accessories concealed in wall/ceiling /floor/roof etc., including factory made galvanized steel pressed terminal boxes with 2mm thick suitable for fixing modular switches, sockets, fan regulators etc., of suitable modules and the earth wire to be connected to common earth dolly complete all as specified and directed for the following:-

One light point controlled by one switch.

One ceiling fan point controlled by one switch and one regulator.

One exhaust fan point controlled by one switch.

One 3 pin 5/6 Amps switch socket on independent board.

One 3 pine 5/6 amps switch socket on same board alongwith other switches.

One bell point controlled by one bell push.

All as per item No 93 herein before but with 4 Sqmm single core PVC cable for one 3 pin 15/16 amps switch socket outlet on independent board.

Taking down sub main wiring (or) power wiring of 6 Sqmm to 10 Sqmm complete including PVC conduit and accessories and removing to stores or taken as credit and making good the disturbed surfaces of wall complete all as specified

M&L for sub main wiring with PVC insulated, 1100 volts grade single core multistranded copper conductor cable conforming to IS specifications, 2 runs of 6 Sqmm including one run of 6 Sqmm earth wire single core multistranded copper conductor PVC insulated cables as earth continuity conductor drawn through and including one run of 25 mm dia rigid PVC conduit and conduit accessories incl accessories fixed on wall/ceiling etc., or concealed in wall, making good disturbed surfaces on walls and connecting to common earth dolly all as specified and directed.

All as per item No 96 herein above but with 4runs of 10 Sqmm and one run of 10 sq.mm earth wire in PVC conduit as specified and as directed.

Taking down carefully by unscrewing from boards/outlet boxes, wall ceiling fittings and fixtures such as switches, sockets, ceiling roses, lamp holders, with plug, switch fuse and regulators etc., taken as credit and making good the disturbed surfaces of wall etc all as directed.

S&F ceiling rose 6A 240V 3 plates , 3 terminals PVC / Polycorbanate body

S&F modular switch 1 way 6A, 1 module, 230 Volts

S&F modular bell push 6A, 1 module, 230 Volts

S&F modular switch 1 way 16A, 1 module, 230 Volts

S&F modular socket 6 A , 2/3 pin combined, 230 Volts, 2 modules with ISI marked

S&F modular socket 6/16 A, 2/3 pin combined, 230 Volts, 2 modules with ISI marked

S&F modular type electronic fan regulator 120 W, 230 volts (2 Modules) stepped and flush type and connecting up etc., complete all as specified

S&F modular white cover plate with frame for 2 Module

S&F modular white cover plate with frame for 3 Module

S&F modular white cover plate with frame for 4 Module

S&F modular white cover plate with frame for 6 Module

S&F modular white cover plate with frame for 8 Module

S&F lamp holder PVC / Polycarbonate type with back plate batten fittings all as specified

S&F high efficient LED Bulb 9 Watts with B22 caps all as specified

S&F Buzzer, Ding Dong AC. 230 volts, single pole .

S&F LED luminaire 600 mm x 600 mm, 35/36 watt, 220 V AC recessed type with high efficiency PMMA diffuser soft glare free light complete with driver, holders & LED lamp suitable for roof ceiling including connecting up with driver three core flexible copper conductor cases of suitable size complete all as specified and directed.

S&F LED light fitting 1x 22 Watts , 220V, AC decorative box type with driver, holder including LED tube light connecting up with three core flexible copper conductor cable of suitable size from ceiling rose complete all as specified and directed.

S&F LED light fitting mirror type with high out put diffuser 2 feet, 10 watt 220 V AC decorative type with driver holder and LED lamp including onnecting up with three core flexible copper conductor cable of suitable size complete all as specified and directed.

Taking down ceiling /exhaust fan /wall mouted fan by sealing cable end, dismantling blades and removing fan and blades to MES store or reuse at site as directed by Engineer-in-Charge.

S&F brushless direct current motor (BLDC) ceiling fan complete with blades, down rods, electronic regulator and accessories, 230 V, 1200 mm sweep ,minimum air delivery 210 CFM with service value 6.00 BEE , Five star rated complete all as specified and directed.

Refixing the serviceable wall mounted fan of any sweep after cleaning complete all as specified and directed .

S&F exhaust fan, steel body AC single Phase. 230V of size 300m sweep with, blades, and frame and louvers all as specified and directed..

Refixing the exhaust fan after cleaning and connecting up including provision of cable from ceiling rose/connector to fan all as specified

Taking down MCB DB including inner components and provision of MCB DB TPN 4 way, double door, CRCA sheet, powder coated with high quality weather proof paint, 415 volts, AC, 50Hz, with 200 Amps rated tinned copper bus bar, neutral link, earth link and connecting up complete all as specified and as directed.

Taking down MCB DB including inner components and provision Sheet metal enclosure for MCB DB single pole and neutral 240 volts,double door, 12 way with 200 amps rated bus bar all as directed.

Taking down MCB DB including inner components and provision sheet metal enclosure for MCB DB single pole and neutral 240 volts,double door, 4 way with 200 amps rated bus bar all as specified

S&F RCBO single pole , neutral, 240 volts, 40 amps, 30mA, 10kA all as complete

S&F isolator, TPN, 415 Volts, 50 Hz, 40 Amps, 30 mA, 10 kA, complete all as specified

S&F MCB SPN (Single pole and neutral) 32 Amps, 240 Volts, 50 Hz, AC supply, "B" curve, with breaking capacity of 10 kA complete all as specified

S&F MCB 6 to 32 Amps, SP, 240 Volts, 50 Hz, AC supply, "B" curve, with breaking capacity of 10 kA complete all as specified

S&F metal enclosure single pole and neutral enclosure with two pin and earth plug and socket with one single MCB 20 Amp 240 Volt all as specified

M&L for earthing complete with galvanised steel earth plate electrode of size 60 cm x 60 cm x 6 mm thick burried directly in ground vertically to a depth of not less than 2.25 mtr below normal ground level with top edge of earth plate not less than 1.5 m below normal ground level, connected to galvanised iron /steel earth wire 4 mm dia by means of bolts, nuts, washers and check nuts made out of galvanised iron, protected by GI pipe light grade 15 mm bore dia and connected to main control board all as shown in electrical plate No 3 of MES SSR Part I including necessary excavation and earth work in any type of soil, salt, charcoad dust, PCC 1:2:4 type B1 in chamber, RCC 1:2:4 chamber cover with 6 mm dia MS bar at 100 mm centre to centre both ways and MS 6 mm dia hook complete all as specified and directed.

M&L for dismantling and taking down the existing air ducting system complete including return grills , air diffusers etc transported and deposited to E/M yard on safe custody of department all as directed by Engr-in -Charge.

Supply , assembly and erection of GI sheet with TDF flange rectangular/square duct made out of 'L' shaped hollow profile, duly factory boxed as per existing ducting system, including all accessories such as corner, cleat, carriage bolt, gasket and appropriate sealant on longitudinal joints etc complete of size of 22 gauge as per IS 655 and particular specification, as per existing supply and return air ducting system complete in all respect suitable for existing AHU, CMF for the OT MH having existing ducting system, orientation as per the building structural complete all as specified and directed by Engineer-in -Charge.

M&L for powder coated extruded aluminium supply /return grilles/diffusers including collar aluminium aerofoll damper as per existing ducting system complete all as specified.

Supply, install, testing and commissioning of aluminium aerofoil volume control dampers complete all as specified.

Supply, install , testing and commissioning of duct /wall counted fire dampers 16 Gauge, GI sheet with fusible plug complete all as specified.

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 50mm and including the following complete all as specified and as directed by Engineer-in-Charge:- (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 and all duct joints 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.

DJ Group (BID ID -3387420)

RAVI ENTERPRISE (BID ID -3387062)

M/s KM Marimuthu Achary (BID ID -3387263)