REPAIR/REPLACEMENT OF UNSERVICEBALE DUCT INSULATION UNDER DUCT, GRILL, DIFFUSER AT BHDC UNDER GE (EAST) DELHI CANTT-10

Amount

Supply, assembly and erection in replacement GI sheet with C & SS rectangular/ square duct made out of 'L' shaped hollow profile, duly factory boxed, including all accessories such as Corner, Cleat, Carriage bolt, Gasket and appropriate sealant on longitudinal joints etc complete including necessary MS Channels, girder supports as approved by Engr-in-Charge including making of hole in any type of wall and making good with plastering work, masonry work and necessary MS channel supports complete all as specified and directed

24 Gauge GI Sheet

22 Gauge GI Sheet

Supply & erection in replacement 19 mm thick nitrile duct thermal insulation with Aluminium foil, non-fibrous, fire retardant, closed cell, tri- dimensional, chemically cross linked polyethylene foam, confirm to class O' for fire propagation and class 1 for surface spread of flame & factory laminated aluminium foil complete all as specified and as directed.

S&F in replacement acoustic lining of supply air ducting complete with GI frame, tissue paper, 26 Gauge perforated Aluminium Sheet, 25mm thick, of density 32 Kg/cum fiber glass insulation complete all as specified and as directed.

M & L in replacement under deck insulation for metal roof with bonded fibre glass wool of density 24 Kg/Cum, 50 mm thick, suitably factory laminated with aluminium foil backed up by scrim and Kraft paper (FSK), facing with 50 mm projection for overlap and butting in following operations complete all as directed and specified:- (a) S&F in replacement 6 mm dia M S rods between purlins suitably for supporting the required thickness of insulation material beneath the metal roof. (b) S&F in replacement 22 SWG GI/ Aluminium wires supports for insulation. (c) S&F in replacement chicken wire mesh 12.5 mm x 22 SWG of hexagonal construction below the insulation for supporting the same. (d) S&F in replacement under deck insulation with bonded fibre glass wool of density 24 Kg/Cum, 50 mm thick, suitably factory laminated with aluminium foil backed up by scrim and Kraft paper (FSK), facing with 50 mm projection for overlap and butting. Note:- Insulating material shall be conforming to BS - 476, Part 4, 5, 6 & 7.

S&F in replacement Acoustic treatment/ lining of area of AHU room with 22 Gauge, GI channels of 50x50 mm size fitted at 600x600mm girds, fitted with 50mm thick, 32 Kg/cum fibber glass insulation, covered with fibber glass tissue and 24 Gauge Aluminium perforated sheet as required, The joint shall be with minimum overlapping of 75mm with 30mmx 3mm aluminium strip covering, All corners shall be provided with 20x20x2mm aluminium angle with stainless steel counter sunk screws complete all as specified and as directed.

Supply, installation, testing and balancing in repair square shape supply air diffusers with removable core and antismudge ring and volume control dampers, powder coated, extruded aluminium construction complete all as specified and as directed.

Supply, installation, testing and balancing in repair square shape return air diffusers with removable core and antismudge ring and without control dampers, with powder coated, extruded aluminium construction complete all as specified and as directed.

Supply and fixing in replacement air volume control damper with connected accessories, made out of 22 Gauge GI sheet with flap and operatig handle complete all as specified and as directed.

Supply and fixing fire proof double layered canvas cloth connection for AHU outlet including inspection opening complete with flanges made out of 22 GSS Sheet on both side for connection to AHE and duct complete with nuts , bolts complete all as specified and directed.

Supply and fixing GI Pipe 80mm dia heavy class fixing on wall for ducting supports including making of hole in any type of wall and making good with plastering work, masonry work complete all as specified and directed.

Comprehensive maintenance including replacement of defective/ unserviceable parts/ fittings of Hot water Generators (Make: Rapid Cool) - (02 Nos) complete all specified and as directed. Contractor shall be responsible for repair and replacement of all the defective parts of complete hot water generator including pipelines and connected infrastructure and connected accessories during entire contract period. Replacements of all defective/ unserviceable parts and periodical painting, fabrication work, if any required to maintain smooth functioning of equipments, control and power wiring etc required for smooth functioning of 02 Nos equipments during entire comprehensive maintenance period shall be included in rate quoted by the contractor.

Supply, installation, testing and balancing of Return air grill without dumper powder coated extruded aluminum construction complete .

Supply, installation, testing and balancing of Supply air grill with aluminum dumper powder coated extruded aluminum construction

Singh Associates (BID ID -3188783)

ASHUTOSH BUILDERS (BID ID -3189524)

Vishal Traders (BID ID -3190033)

Saini Enterprises (BID ID -3190006)

M/S Rohit Enterprises (BID ID -3190486)

RUCHIKA ENGG.WORKS (BID ID -3185916)