HVAC



CHAPTER 16-HVAC(ONLY PLUMBING,DUCTING & AHUs)

Item No.

Description

Unit

Rate

 

PLUMBING

 

 

 

INSULATED CHILLED WATER PIPING (resin bonded fiber glass

 

 

 

glass INSULATION)

 

 

16.1

Supplying, laying/ fixing, testing and commissioning of following

 

 

 

nominal sizes of chilled water piping inside the building (with

 

 

 

necessary clamps, vibration isolators and fittings but excluding

 

 

 

valves, strainers, gauges etc.) duly insulated with 80 kg/cum

 

 

 

density  resin  bonded fiber glass            or 144 Kg/ cu m density

 

 

 

mineral wool (non Combustible) pipe section insulation

 

 

 

covered with a layer of 120 gm/sqm polythene sheet (vapour

 

 

 

barrier) and finally applying 0.63mm aluminium sheet cladding

 

 

 

complete with type3 , grade 1 roofing feltstrip(as per IS:1322 as

 

 

 

amended up to date ) at joints and repairing of damage to

 

 

 

building etc. as per specifications and as required.

 

 

 

Note: The Pipes of sizes 150mm & below shall be M.S. 'C' class

 

 

 

as per IS : 1239 and pipes size above 150mm shall be welded

 

 

 

black steel pipe heavy class as per IS: 3589, from minimum

 

 

 

6.35mm thick M.S. Sheet for pipes upto 350 mm dia. and from

 

 

 

minimum 7mm thick MS sheet for pipes of 400 mm dia and

 

 

 

above.

 

 

16.1.1

400mm dia.(75 mm thick insulation)

Metre

14234

16.1.2

350 mm dia.(75 mm thick insulation)

Metre

9617

16.1.3

300 mm dia.(75 mm thick insulation)

Metre

8240

16.1.4

250mm dia.(75 mm thick insulation)

Metre

6920

16.1.5

200mm dia.(75 mm thick insulation)

Metre

5837

16.1.6

150mm dia. (50mm thick insulation)

Metre

3706

16.1.7

125mm dia.(50mm thick insulation)

Metre

3168

16.1.8

100mm dia. (50mm thick insulation)

Metre

2545

16.1.9

80mm dia. (50mm thick insulation)

Metre

2151

16.1.10

65mm dia.(50mm thick insulation)

Metre

1837

16.1.11

50mm dia.(50mm thick insulation)

Metre

1546

16.1.12

40mm dia. (50mm thick insulation)

Metre

1349

16.1.13

32 mm dia (50mm thick insulation)

Metre

1185

16.1.14

25 mm dia (50mm thick insulation)

Metre

1075

 

INSULATED CHILLED WATER PIPING (Nitrile rubber insulation)

 

 

16.2

Supplying, laying/ fixing, testing and commissioning of following

 

nominal sizes of chilled water piping inside the building (with

 

necessary clamps, vibration isolators and fittings but excluding

 

valves, strainers, gauges etc.) duly insulated with following closed

 

cell elastometric nitrile rubber of minimum 45 Kg / cu m density,

 

thermal  conductivity    0.037 W/MK or better at 20 deg mean

 

temperature class 'O' insulation applied by suitable adhesive

 

complete including repairing of damage to building etc. as per

 

specifications and as required complete in all respect.

 

Note:- The Pipes of sizes 150mm & below shall be M.S. 'C' class as

 

per IS : 1239 and pipes size above 150mm shall be welded black steel

 

pipe heavy class as per IS: 3589, from minimum 6.35mm thick M.S.

 

Sheet for pipes upto 350 mm dia. and from minimum 7mm thick MS

 

sheet for pipes of 400 mm dia and above.

16.2.1

400mm dia.(32 mm thick insulation)

Metre

11743

16.2.2

350mm dia.(32 mm thick insulation)

Metre

7332

16.2.3

300mm dia. (32 mm thick insulation)

Metre

6276

16.2.4

250mm dia.(32 mm thick insulation)

Metre

5388

16.2.5

200mm dia.(32 mm thick insulation)

Metre

4367

16.2.6

150mm dia. (32 mm thick insulation)

Metre

2915

16.2.7

125mm dia.(32 mm thick insulation)

Metre

2590

16.2.8

100mm dia. (32 mm thick insulation)

Metre

2061

16.2.9

80mm dia.(32 mm thick insulation)

Metre

1554

16.2.10

65mm dia(32 mm thick insulation)

Metre

1247

16.2.11

50mm dia(32 mm thick insulation)

Metre

1111

16.2.12

40mm dia. (32 mm thick insulation)

Metre

919

16.2.13

32 mm dia(19 mm thick insulation)

Metre

751

16.2.14

25 mm dia(19 mm thick insulation)

Metre

625

 

INSULATED CHILLED WATER PIPING (expanded polystrene insulation)

   
16.3 Supplying, laying/ fixing, testing and commissioning of following nominal sizes of chilled water piping plumbing  inside  the building (with necessary clamps, vibration isolators and fittings but excluding valves, strainers, gauges etc.) duly insulated with fire retardant quality expanded polystrene moulded pipe section of density 20 kg/cu.m after a thick coat of cold setting adhesive (CPRX compound) wrapping with 500g polythene faced hessain and finally applying 0.63mm aluminium  sheet  cladding  complete with type3 , grade 1 roofing feltstrip(as per IS:1322 as amended up to date ) at joints repairing of damage to building etc. as per specifications and as required complete in all respect.    

 

Note:- The Pipes of sizes 150mm & below shall be M.S. 'C' class as

 

 

 

per IS : 1239 and pipes size above 150mm shall be welded black

 

 

 

steel pipe heavy class as per IS: 3589, from minimum 6.35mm

 

 

 

thick M.S. Sheet for pipes upto 350 mm dia. and from minimum

 

 

 

7mm thick MS sheet for pipes of 400 mm dia and above.

 

 

16.3.1

400mm dia.(75 mm thick insulation)

Metre

13020

16.3.2

350 mm dia.(75 mm thick insulation)

Metre

8614

16.3.3

300 mm dia.(75 mm thick insulation)

Metre

7475

16.3.4

250mm dia.(75 mm thick insulation)

Metre

6248

16.3.5

200mm dia (75 mm thick insulation)

Metre

5301

16.3.6

150mm dia. (75 mm thick insulation)

Metre

3452

16.3.7

125mm dia.(50mm thick insulation)

Metre

2904

16.3.8

100mm dia.(50mm thick insulation)

Metre

2517

16.3.9

80mm dia. (50mm thick insulation)

Metre

2010

16.3.10

65mm dia.(50mm thick insulation)

Metre

1717

16.3.11

50mm dia.((50mm thick insulation)

Metre

1455

16.3.12

40mm dia. (50mm thick insulation)

Metre

1273

16.3.13

32 mm dia (50mm thick insulation)

Metre

1117

16.3.14

25 mm dia (50mm thick insulation)

Metre

1022

 

INSULATION ON EXISTING PIPE

 

 

16.4

Supplying, laying/ fixing, testing and commissioning of following

 

 

 

thickness resin bonded fiber glass pipe section insulation having

 

 

 

density 80 kg/cum or mineral wool (non combustible) having

 

 

 

density of 144 Kg/ cu m duly covered with a layer of 120

 

 

 

gm/sqm polythene sheet (vapour barrier) on existing pipe and

 

 

 

finally applying 0.63mm aluminium sheet cladding complete

 

 

 

with type3 , grade 1 roofing feltstrip(as per IS:1322 as amended

 

 

 

up to date ) at joints etc. as per specifications and as required.

 

 

16.4.1

75mm

sq m

2790

16.4.2

65 MM

sq m

2248

16.4.3

50mm

sq m

2455

16.4.4

40mm

sq m

2252

16.4.5

16.5

25mm

Supplying, laying, fixing, testing and commissioning of following

sq m

1802

 

thickness closed cell elastrometric nitrile rubber of class 'O'

 

 

16.6

Supplying, laying/ fixing of following thickness insulation with

 

 

 

fire retardant quality expanded polystrene moulded pipe

 

 

 

section of density 20 kg/cu.m after a thick coat of cold setting

 

 

 

adhesive (CPRX compound) wrapping with 500g polythene

 

 

 

faced hessain and finally applying 0.63mm aluminium sheet

 

 

 

cladding complete with type3 , grade 1 roofing feltstrip(as per

 

 

 

IS:1322 as amended up to date ) at joints repairing etc. as per

 

 

 

specifications and as required complete in all respect..

 

 

16.6.1

75mm

sq m

1233

16.6.2

50mm

sq m

1112

 

INSULATED VALVES

 

 

16.7

Supplying, fixing, testing and commissioning of following valves,

 

 

 

strainers, gauges in the chilled water plumbing duly insulated to

 

 

 

the same specifications as the connected piping and adequately

 

 

 

supported as per specifications.

 

 

16.7.1

BUTTERFLY VALVE (MANUAL) with C I body SS Disc, Nitrile Rubber

 

 

 

Seal & O- Ring PN 16 pressure rating for chilled water/hot eater

 

 

 

circulation as specified

 

 

16.7.1.1

200 mm dia

Each

12838

16.7.1.2

150mm dia.

Each

6556

16.7.1.3

125mm dia.

Each

5861

16.7.1.4

100mm dia.

Each

5169

16.7.1.5

80mm dia.

Each

3691

16.7.1.6

65mm dia.

Each

3436

16.7.1.7

50mm dia.

Each

3167

16.7.1.8

40mm dia.

Each

2925

16.7.2

BALANCING VALVE WITH BUILT IN MEASURING FACILITY with C I

 

 

 

body flanged construction with EPDM coated disc with long pitch

 

 

 

with protected out pipe insulation & PN 16 pressure rating for

 

 

 

chilled / hot water circulation as specified.

 

 

16.7.2.1

200 mm dia

Each

52635

16.7.2.2

150mm dia.

Each

26600

16.7.2.3

125mm dia.

Each

19996

16.7.2.4

100mm dia.

Each

15223

16.7.2.5

80mm dia.

Each

10360

16.7.2.6

65 mm dia

Each

9058

16.7.2.7

50mm dia.

Each

7379

16.7.2.8

40 mm dia

Each

4522

16.7.3

NON  - RETURN VALVE                            with duel plate of C I body SS plates

 

 

 

vulcanized NBR seal flanged end & PN 16 pressure rating for

 

 

 

chilled / hot water circulation including insulation as specified.

 

 

16.7.3.1

200 mm dia

Each

13504

16.7.3.2

150mm dia.

Each

8296

16.7.3.3

125mm dia.

Each

7122

16.7.3.4

100 mm dia

Each

5494

16.7.3.5

80mm dia.

Each

3818

16.7.3.6               65 mm dia

 

      1. - STRAINER of Ductile CI Body flanged ends with stainless steel strainer for chilled / hot water circulation including insulation as specified.200mm dia

Each

 

 

 

Each

3507

 

 

 

28872

16.7.4.2

150mm dia.

Each

14758

16.7.4.3

125mm dia.

Each

13912

16.7.4.4

100 mm dia

Each

9821

16.7.4.5

80 mm dia

Each

7123

16.7.4.6

65mm dia.

Each

6207

16.7.4.7

50mm dia.

Each

5033

16.7.4.8

40mm dia.

Each

3565

16.8

 

Providing and fixing in position the industrial type pressure

gauges with gun metal / brass valves complete as required

 

Each

 

1094

16.9

 

Providing & fixing in position the mercury in glass industrial type

thermometers.

 

Each

 

957

 

CONDENSER WATER PIPE

 

 

 

fixing, testing and commissioning of condenser water pipes of following sizes of MS 'C' class along with necessary clamps, vibration isolators and fittings such as bends,tees etc.but excluding valves, strainers, gauges etc. adequately supported on rigid supports duly painted/buried in ground excavation and refilling etc. as per specification and as required complete in all respect.

Note:-The Pipes size 150mm & below shall be M.S. 'C' class as per IS : 1239 and pipes size above 150mm shall be welded black steel pipe heavy class as per IS: 3589, from minimum 6.35mm thick M.S. Sheet for pipes upto 350 mm dia. And from minimum 7mm thick MS sheet for pipes of 400 mm dia and above.

300mm dia.
Meter 5270

16.10.2

250 mm dia

Metre

4401

16.10.3

200mm dia.

Metre

3705

16.10.4

150mm dia.

Metre

2385

16.10.5

125mm dia.

Metre

2087

16.10.6

100mm dia.

Metre

1784

 

VALVES WITHOUT INSULATION

 

 

16.11.1

 

BUTTERFLY VALVE (MANUAL) with C I body SS disc nitrile sheet

& O - ring & PN 16 pressure rating as specified.

 

 

16.11.1.1

200mm dia.

Each

11531

16.11.1.2

150mm dia.

Each

5442

16.11.1.3

125mm dia.

Each

4797

16.11.1.4

100mm dia.

Each

4120

16.11.1.5

80mm dia.

Each

3015

16.11.1.6

65mm dia.

Each

2837

16.11.1.7

50mm dia.

Each

2544

16.11.1.8

40mm dia.

Each

2385

16.11.2

NON - RETURN VALVE with dual plate of C I body SS plates vulcanized NBR seal flanged end & PN 16 pressure rating as specified

 

 

16.11.3

Supplying, fixing, testing and commissioning of following sizes

 

 

Motorized Butter fly Valve with CI Body, SS Disc,O - ring and

 

minimum PN-16 pressure rating , conforming to BS 5155, IS 13095,

 

with IP-55 actuator, capable of accepting upto 10V DC , and upto

 

20mA electric signal and providing similar transduced feedback

 

output to control system as required.

16.11.3.1

350mm dia.

Each

104962

16.11.3.2

300mm dia.

Each

94059

16.11.3.3

250mm dia.

Each

67718

16.11.3.4

200mm dia.

Each

51795

16.11.3.5

150mm dia.

Each

40154

16.11.3.6

125mm dia.

Each

39809

16.11.3.7

100mm dia.

Each

39070

16.11.3.8

80mm dia.

Each

16705

16.11.3.9

65mm dia.

Each

16544

16.11.3.10

50mm dia.

Each

16206

16.11.4

Supply, Installation, Testing and Commissioning of following sizes

 

 

 

electronic, self-balancing, pressure independent type dynamic

 

 

 

balancing valve with integrated 2 way modualating control valve in

 

 

 

a single body. The actuator shall be capable of accepting upto 10V

 

 

 

DC  and      upto 20mA electric signal and shall provide similar transduced feedback output to control system. Maximum close off pressure shall not be less than 6 Bar for upto 50 mm valves and 7 Bar for 65 mm & above. Valves should have pressure rating of 25

 

 

16.11.4.1

150mm dia.

Each

151383

16.11.4.2

125mm dia.

Each

137826

16.11.4.3

100mm dia.

Each

108454

16.11.4 4

80mm dia.

Each

64151

16.11.4.5

65mm dia.

Each

50405

16.11.4.6

50mm dia.

Each

32649

16.11.4.7

40mm dia.

Each

29785

16.11.4.8

32mm dia.

Each

16038

16.11.4.9

25mm dia.

Each

15084

16.11.4.10

20mm dia.

Each

10997

 

DUCTING, GRILLS, DIFFUSER AND INSULATION

 

 

16.12.1

Supply, installation, balancing and commissioning of factory fabricated 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.

 

 

16.12.1.1

Thickness 0.63 mm sheet

sq m

983

16.12.1.2

Thickness 0.80 mm sheet

sq m

1154

16.12.1.3

Thickness 1.00 mm sheet

sq m

1273

16.12.1.4

Thickness 1.25 mm sheet

sq m

1677

16.12.2

 

 

 

 

 

16.12.2.1

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.

Thickness 0.63 mm sheet

 

 

 

 

 

 

sq m

 

 

 

 

 

 

942

16.12.2.2

Thickness 0.80 mm sheet

sq m

1104

16.12.2.3

Thickness 1.00 mm sheet

sq m

1458

16.12.2.4

Thickness 1.25 mm sheet

sq m

1615

16.13

Supply, installation, testing  and  commissioning  of  GI volume

control duct damper complete with neoprene rubber gaskets,

nuts, bolts, screws linkages, flanges etc, as per specifications.

 

 

sq m

 

 

6500

16.14

Supply, installation, testing and commissioning of Motorized

(ON-OFF Type) duct mounted GI volume control damper with enthalpy sensor and necessary control wire (minimum 1.5 sqmm) for integration within AHU room

 

 

16.14.1

Damper

sq m

7951

16.14.2

Actuator

Each

7960

16.15

Supplying & fixing of powder coated extruded aluminium

Supply Air Grills with aluminium volume control dampers as per specifications.

 

 

sq m

 

 

8480

16.16

Supplying & fixing of powder coated extruded aluminium

 

 

Return Air Grills with louvers but without volume control

 

dampers complete as required.

sq m

5507

16.17

Supplying, fixing testing commissioning of supply air diffusers of

 

 

 

powder coated aluminium with aluminium volume control

 

 

 

dampers with anti smudge ring & removable core.

sq m

11363

16.18

Supplying, fixing testing commissioning of Return air diffusers of

 

 

 

powder coated aluminium without volume control dampers

 

 

 

with anti smudge ring & removable core.

sq m

7559

16.19

Supply, installation, testing & commissioning of thermal

 

 

 

insulated flexible duct of following sizes duly supported at

 

 

 

regular interval as per site requirement etc. complete as

 

 

 

required as per specifications.

 

 

16.19.1

200 mm dia.

Metre

538

16.20 Supplying, Fixing,testing and commissioning of fire dampers in supply air duct/main branch and return air path as and where required of required sizes i/c control wiring,the damper shall be motorized and spring return so as to close the damper in the shall also be closed in the event of fire signal complete as required and as per specifications.
Fire damper
Each 9212

16.21

Supply and fixing of acoustic lining of supply air duct and plenum

 

 

with 25 mm thick resin bonded glass wool having density of 32

 

kg/m³, with 25 mm X 25 mm GI section of 1.25 mm thick, at 600

 

mm centre to centre covered with Reinforced Plastic tissue paper

 

and  0.5 mm thick     perforated aluminum sheet fixed to inside

 

surface of ducts with cadmium plated nuts, bolts, stick pins, CPRX

 

16.22

compound etc. complete as required and as per specifications.

Supplying, fixing acoustic lining on wall and ceiling of AHU rooms

sq m

647

 

with 50mm thick, density 32 kg/cu.m resin bonded glass fiber

 

 

 

insulation friction fixed in 610mm x 610 mm frame work made of

 

 

 

25X50X50X50X25 mm made out of 0.6mm thick GI sheet U shaped

 

 

 

channel and covered with reinforced fiber glass tissue and finished

 

 

 

 

with 0.80 mm perforated aluminium sheet etc. complete as

required and as per specifications.

 

sq m

 

1139

16.23

Supplying and fixing of following thickness duly laminated aluminum foil of mat finish closed cell Nitrile rubber (Class "O") insulation on existing duct after applying suitable adhesive for Nitrile rubber. The joints shall be sealed with 50 mm wide and 3 mm thick self adhesive nitrile rubber tape insulation complete as  per specifications and as required

 

16.23.1

19mm

sq m

697

16.23.2

25mm

sq m

896

16.24

Supplying and fixing 50 mm thick aluminium foil faced resin

 

 

 

bonded fibre glass insulation (on duct ) of density 24 kg/cu.m

 

 

 

or mineral wool insulation(non combustible) of density 44

 

 

 

kg/cu m     after applying two coats of cold setting adhesive

 

 

 

(CPRX  compound)           sealing all joints with self adhesive

 

 

 

aluminium tape & covering with 0.63mmx19mm GI wire mesh

 

 

 

netting butting all joints and laced with GI wire complete as per

 

 

 

specifications and as required. (for indoor applications).

sq m

432

16.25

Supplying and fixing 50mm thick aluminium foil faced resin

 

 

 

bonded fibre glass insulation (on duct) of density 24 kg/cu.m or

 

 

 

mineral wool insulation(non combustible) of density 44

 

 

 

kg/cum after applying two coats of cold setting adhesive (CPRX

 

 

 

compound) sealing all joints with self adhesive aluminium tape

 

 

 

& covering with 0.63mmx19mm GI wire mesh netting & butting

 

 

 

all joints and laced with GI wire complete and finally covered

 

 

 

with one layer of tar felt stuck with hot bitumen as per

 

 

 

specifications and as required. (for outdoor applications)

sq m

510

 

AIR HANDLING UNITS

 

 

16.26

 

Supply, Installation, Testing and commissioning of factory built 

floor mounted chilled water double skin type horizontal/vertical

 

 

 

air handling units made of 25mm thick panels consisting of pre

 

 

 

plasticized G.I. casing of thickness 0.8mm outside layer and 0.8

 

 

 

mm inside layer with polyurethane foam (PUF) insulation factory

 

 

 

injected between them by injection moulding machine, complete

 

 

 

with blower section with blower suitable for static pressure as

 

 

 

required, minimum 2 bend GSS/PVC eliminators, cooling coil

 

 

 

section with aluminium finned copper tubes (tubes thickness not

 

 

 

less than 0.5mm) cooling coil of 6 row deep, filter section with

 

 

 

50mm thick metal viscous/ washable synthetic type air prefilters,

 

 

 

belt drive package with TEFC drive motor of efficiency class IE3

 

 

 

suitable for 415 ± 10% volts, 50Hz, 3 Phase AC supply suitably

 

 

 

designed for varialbe frequency drive applications, drain

 

 

 

connections, stainless steel (18G) drain pan with PUF insulation,

 

 

 

150 mm dia. dial type pressure gauges (2 nos.)and industrial type

 

 

 

thermometers (2 nos.) at the inlet and outlet of coil, auto purge

 

 

 

valve      wherever       required,       necessary       vibration               isolation

 

 

 

arrangement etc. complete as per specification and of following

 

 

 

capacities.

 

 

16.26.1

4300 CMH

Set

98906

16.26.2

5100 CMH

Set

116360

16.26.3

6800 CMH

Set

130757

16.26.4

8500 CMH

Set

161985

16.26.5

10200 CMH

Set

186811

16.26.6

11900 CMH

Set

212311

16.26.7

13600 CMH

Set

228038

16.26.8

15300 CMH

Set

258480

16.26.9

17000 CMH

Set

273533

16.26.10

18700 CMH

Set

302290

16.26.11

20400 CMH

Set

324757

16.26.12

23800 CMH

Set

356111

16.26.13

28900 CMH

Set

376079

16.26.14

34000 CMH

Set

416824

16.26.15

39100 CMH

Set

477673

16.27

Supply, Installation,Testing and commissioning of factory built floor mounted chilled water double skin type horizontal/vertical air handling units made of 25mm thick panels consisting of pre plasticized G.I. casing of thickness 0.8mm outside layer and 0.8 mm inside layer with polyurethane foam (PUF) insulation factory injected between them by injection moulding machine, complete with blower section with blower suitable for static pressure as required, minimum 2 bend GSS/PVC eliminators, cooling coil section with aluminium finned copper tubes (tubes thickness not less than 0.5mm) cooling coil of 4 row deep, filter section with 50mm thick metal viscous/ washable synthetic type air prefilters, belt drive package with TEFC drive motor of efficiency class IE3 suitable for 415 ± 10% volts, 50Hz, 3 Phase AC supply suitably designed for variable frequency drive applications, drain connections, stainless steel (18G) drain pan with PUF insulation,arrangement etc. complete as per specification and of following capacities

 

 

16.27.1

4300 CMH*

Set

87157

16.27.2

5100 CMH*

Set

102301

16.27.3

6800 CMH*

Set

114149

16.27.4

8500 CMH*

Set

141244

16.27.5

10200 CMH*

Set

165243

16.27.6

11900 CMH*

Set

184977

16.27.7

13600 CMH*

Set

199954

16.27.8

15300 CMH*

Set

227251

16.27.9

17000 CMH*

Set

239159

16.27.10

18700 CMH*

Set

261677

16.27.11

20400 CMH*

Set

283755

16.27.12

23800 CMH*

Set

269798

16.27.13

28900 CMH*

Set

344316

16.27.14

34000 CMH*

Set

381575

16.27.15

39100 CMH*

Set

437196

NOTE : THE ITEM OF 4 ROW COOLING COIL AHUs SHOULD BE USED ONLY FOR REPLACEMENT OF EXISTING AHUs WHERE HOT WATER GENERATOR AND HOT WATER LINES ARE NOT FEASIBLE TO BE PROVIDED BECAUSE OF THE SITE CONSTRAINTS.

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