Reconfiguration of Existing Terminal Building at Surat International Airport. SH. SITC of Balance HVAC Ducting and insulation Works

Amount

AIR DISTRUBITION SYSTEM:- SITC of Factory fabricated 120 gsm G.I Sheet Metal Ducting (24 G 22 G, 20 G, 18 G) Supply, installation and testing of FACTORY FABRICATED class-VIII, 120 GSM GI sheet metal ducts in accordance with the approved shop drawings and as required by the specifications. GI sheet will be as per IS-277 and factory fabrication duct shall be as per SMACNA. All necessary GI supports using thread rods (as directed) and anchor bolts, Self adhesive Neoprene rubber / UV resistant PVC foam, turning vanes, splitters shall be included in the scope. No slip joint is allowed in any type of ducting. Only flanged joint with rubber gasket/PVC foam is allowed. Duct Pressure testing of all main duct and main branches as per latest SMACNA standard for permissible air leakage shall be inclusive. Distance of reinforcement/bracing from each joint. Bracing material to be same as of material used for joining of duct sections. All duct joint, corners,flanges joints etc. shall be properly covered with food grade silicon sealant for leak proof application inspite of leak proof duct joints and shall be complete in accordance with AAI technical specification. FOR DUCTS WITH EXTERNAL SP UPTO 250 Pa RECTANGULAR DUCT GS DUCT SECTION LENGTH 1.2m (4ft) Maximum Duct Size

2101 mm - above (18 G)

AIR DISTRUBITION SYSTEM:- Supply, installation, balancing and commissioning of fabricated at site GSS sheet metal rectangular/round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports etc. as per approved drawings and specifications of following sheet thickness complete as required.

CANVASS CONNECTION:- Supply, fabrication, installation and testing of fire retarding flexible heavy canvas sleeve at least 10cm long securely bonded and bolted on both sides for AHUs, CAHUs,Fans etc. Quoted rates shall include the necessary mounting arrangement, flanges, nuts and bolts and treated-for-fire requisite length of canvass cloth. System shall be complete in accordance with AAI technical specifications.

Duct Thermal Insulation:- Supply and installation of Closed Cell Nitrile rubber for duct thermal insulation of Supply & Return air duct. Nitrile rubber shall be Factory laminated black/Grey fiber Glass Cloth closed cell Elastomeric UV resistant. Thermal conductivity for the insulation material shall not exceed 0.038 W/mK at an average temperature of 25-30 Deg. C. Nitrile rubber shall be 40-60 Kg/m3. The material should comply to Class’O’ fire rating. The insulation material shall be non-combustible as per National Building Code 2016, Clause: 3.4.8.3.5 Part 4 Fire and Life Safety and should comply latest ECBC norms, fire rated for BS 476 Part 4 (Non –Combustible), BS 476 Part 5 (Ignitibility Test), Class 0 as per BS 476 Part 6: 1989 for fire propagation test and for Class 1 as per BS476 Part 7, 1987 for surface spread of flame test. The Material shall comply to BS 6853 / ISO 5659 / BS 6853 / ABD 0031 for smoke density and toxicity values. Line item shall be in compliance with AAI technical specifications.

Duct Accoustic Insulation :-Supply and installation of 15mm thick Open cell Nitrile rubber foam insulation duct acoustic lining of supply/ventilation air duct up to a distance of 5 m from AHU and Ventilation fan outlet with density 140-180 kg/m3 and material thermal conductivity not exceeding 0.047 W/mK. The material should confirm to class 1 rating for surface spread of flame. Insulation should have antimicrobial product protection, and should pass Fungi Resistance and Bacterial Resistance. The insulation should pass Air Erosion Resistance Test in accordance to ASTM Standard as specified and comliance to AAI technical specification.

Room Acoustic Insulation : -Supply and Installation of AHU room acoustic lining of walls and ceiling with 15mm thick open cell nitrile rubber foam insulation with density of 140-180 kg/m3 and material thermal conductivity not exceeding 0.05 W/mK. The material should confirm to class 1 rating for surface spread of flame. Insulating material have anti microbial and anti fungal properties as specified in technical specifications.

Providing & fixing of Carbon steel body with Manual Butterfly Valve of following sizes having pressure rating of PN16 conforming to BS:5155, MSS SP 67 & API 609. Handle operated BFV shall be applicable upto 150mm dia. and Gear Operated valve shall be applicable to 200mm and above sizes. Valve shall be with one coats of Zinc Chromate paint for anti-rust and then shall be finally painted 3 mils of approved colour including all fittings like valves, flanges and unions, etc. in position conforming to technical specifications:necessary ancillaries like hot dipped galvanized nut & blots & washers, rubber gaskets, washers, matching flanges, sockets, coupling etc.shall be inclusive in cost and shall be complete in accordance with AAI technical specifications. Quoted rates shall be inclusive of the cost of thermal insulations (as mentioned for chilled water piping).

80 mm Dia.

65 mm Dia.

Providing & Fixing in postion ‘Y’ type Strainers of following sizes suitable for PN16 rating. ‘Y’ Strainer shall be fabricated out of MS ‘C’ class pipe two sizes higher than that of Strainer pipe size. Flanges as per ANSI B16.5 shall be provided at inlet and outlet connectors. The body shall be hot dip galvanized. Permanent magnet shall be provided in the body of the Strainer to arrest MS particles. Filter element shall be of non-magnetic 20 gage SS sheet with 3 mm perforation. Cartridge having five different type of filters made out of SS 304 with different mesh sizes shall be provided. necessary ancillaries like hot dipped galvanized nut & blots & washers,rubber gaskets, washers, matching flanges,sockets, coupling etc.shall be inclusive in cost and shall be complete in accordance with AAI technical specifications. Quoted rates shall be inclusive of the cost of thermal insulations (as mentioned for chilled water piping).

80 mm Dia.

65 mm Dia.

Providing & Fixing in position of following sizes of Globe type 2 Way Pressure Independent Dynamic Balancing Valves, self balancing, pressure independent, 2-way control valve with 100% authority on the control valve. For 40 to 150 mm Grey iron body , Diff Pressure (P1-P3)- 30 To 400 kPa .The valve should be equipped with an electronic modulating actuator which can accept either 4(0)-20 mA / 2(0)-10 V DC signals. Operating voltage for actuator shall be 24V AC/ 50Hz. The actuator shall be able to close against maximum differential pressure of 6 Bar. Actuator body shall be of non-corrosive and shall be rated with IP42 or Higher. System shall be complete in accordance with AAI technical specifications.

80 mm Dia.

65 mm Dia.

SQUARE DIFFUSER with VCD -NECK SIZE 450 x 450 {OUTER SIZE 600 x 600} Supply and installation of Powder coated extruded aluminium construction Supply air .Rutrun air square diffusers with removable key operated volume control dampers and anti-smudge rings. The diffuser should be constructed with 1 mm thick frame, blade of 0.8 mm thick and opposed blade dampers of 1 mm thick. Neck size as per tender drawing and as specified in AAI technical specifications.

Shifting the 13500 CFM AHU components from mezzanine floor to Ground floor AHU room, including reinstalltion of same by providing required sealant along with the motor & blower installtions, connecting with the existing chilled water pipe lines by providing required fabrication with flanges ,nut bolts ,neoprene gasket, etc of approprite size matching with existing supply and return pipe line & drain line including insulation complete all as required & as specified.

FA intake louvers:-Supply and installation of Exhaust/Fresh air louvers high performance (60% free area) drainable fixed louver type powder coated Aluminium frame and blades. Mullions to be sliding interlock type with integral internal drain. Jamb and mullion drains to be open on front face in order to direct water away from inside of louver. Blades to be one piece extrusions with gutters design to catch and direct water to jumb and mullion drains. Fastners to be aluminium. Louvers to have framed 13 mm mesh removable mill finish aluminium bird screens.

Supply & Fixing of powder coated extruded aluminium return/exhaust air grill Without VCD damper complete as required.(Powder coating color shall be approved by AAI)

Supply and fixing of MERV-8 Pre Filter for 13500 CFM AHU (approx. Size 600 x600 x50 & 600x300x50 mm )Washable type shyntetic Non-Woven Media ,Efficency -90% down to 10 Micron shall be suitable for existing AHUs complete as required

Providing, laying, testing & Commissioning of "C" class heavy duty MS pipe for fire fighting sprinkler system conforming to IS 1239/ IS 3589 including welding, fittings like elbows, tees, flanges, tapers, nuts bolts, gaskets etc. and fixing the pipe on the wall/ceilling with suitable clamp/support frame and painting with two or more coats of synthetic enamel paint of required shade complete as required :

25 mm dia

32 mm dia

40 mm dia

50 mm dia

100 mm dia

Supplying, fixing, testing and commissioning of butterfly valve of PN 16 rating ISI marked complete with nuts, bolts, washers, gaskets conforming to IS 13095 of following sizes and as per the technical specification complete as required :

100 mm dia

150 mm dia

Dismentling of Round AC Ducting from existing terminal Building and shifiting of dismentled material to the AAI specified location/ store at airport (upto 500 mtrs)

Supply Installation ,Testing and Commissionng of LED (24V/4000k) 9 W per meter strip Profile Light for Columns complete as required.

Supply Installation ,Testing and Commissionng of ALP 902 Aluminium Profile 6.85 x 24.5mm al. diffuser with Accessories.

Supply Installation, Testing of 24VDC 72W(2.5A) Electronic Driver suitable for above LED profile Light.

Supply Installation, Testing of 24VDC, 120W (5A) Electronic Driver suitable for above LED profile Light.

Supply Installation, Testing of 24VDC 200W (8.5A) Electronic Driver suitable for above LED profile Light..

Supply Installation, Testing of 24VDC, 300W(12.5A) Electronic Driver suitable for above LED profile Light.

Supply installing 150mm width x 50mm depth x 1.6mm thickness size of perforated Hot dipped Galvanised iron cable tray ( Galvanitation thickness not less than 50 microns) with perforation not more than 17.5 %, in convenient sections, joined with connectors, suspended from the ceiling with G.I. suspenders including G.I. bolts and nuts, etc. as required.

Supply installing 225mm width x 50mm depth x 1.6mm thickness size of perforated Hot dipped Galvanised iron cable tray ( Galvanitation thickness not less than 50 microns) with perforation not more than 17.5 %, in convenient sections, joined with connectors, suspended from the ceiling with G.I. suspenders including G.I. bolts and nuts, etc. as required.

AirBizz AirConditioning Pvt. Ltd. (BID ID -806553)

AIR DESIGN SOLUTIONS (BID ID -808704)

AIRON CORPORTION (BID ID -806741)

OTL TECHNOLOGY AND SOLUTIONS PVT LTD (BID ID -808561)

SM AIRCONDITIONING ENGINEERS (BID ID -808787)