Axial Flow Fan Selection

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    Axial Flow Fan And

    Centrifugal Fan

    F a n s f o r t h e L o n g R u n !

    A REGAL-BELOIT COMPANY

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    configuration. Fan selection chart (full

    solidity in 12" to 60", Full/ ha lf solidity

    in 75") and general arrangement

    dimensions are given in Table -1 & 2

    respectively. Following special

    application fans are also offered

    depending on application and end

    use.

    Bifurcated Fans :

    1

    MARATHON Electric the Pioneer and

    a c k n o w l e d g e d l e a d e r i n A i r

    Technology offers a w ide ra nge o f

    AXIAL Flow a nd Centr ifuga l Fa ns

    suitable for Industrial ventilation, Air

    Conditioning, Dust extraction and

    Fume extraction systems.

    Custom built fans catering to the specificrequirement of Steel Plant, Fertilizer

    Plant, Tea Industry, Mine, Ship, Power

    Plants (Thermal and Nuclear) Chemical

    Plant etc. are also available.

    AXIAL FLOW FAN

    Features

    Axial Flow Fans are available in wide

    range of combination from 12" to 75"

    diameter fitted with Motors from 0.37

    kW to 110 kW in 2 Pole, 4 Pole, 6

    versions. Motors are suitable for 415

    volts 10%, 50 Hz 5%, 3 Phase Power

    Supply, as per IS:325 / 19 96 , which

    are in-house manufactured ensuring

    better fitment and proper matching.

    Fans are available in single phase

    version also.

    Duct mounted Fan

    Axial Flow Fans are capable of

    handling upto 300 000 m3/ hr airdelivery and static pressure upto 120

    MM WG. Further pressure can be

    developed with multiple staging of fans.

    Construction

    Fan Casing is made of heavy gauge

    MS Sheet (as per IS-107 9/ 20 62)

    having robust construction. It has

    flanges at both ends for easy fixing

    on ducts/ walls.

    Impeller is made of Die Cast aluminium

    (LM-6 of BS 1490 / IS 617 Gr. 46 00 )

    having aerofoil design with adjustable

    pitch angles. The solidity (No. of wings)

    is varied in order to use the most

    efficient part of the fan characteristics.

    Wall Mounted

    Fan

    Axial Flow Fans are tested in

    accordance with IS-3588-1991.

    Standard fans are finished with synthetic

    enamel paint.

    Depending on application, fans can

    be supplied with casing made of

    stainless steel or zinc spra yed MS

    sheet. Epoxy / chlorinated rubber paint

    may also be provided.

    Fans are available both in Wall

    M o u n t e d a n d Duc t Mounted

    MARATHON Electric Flame Proof Axial

    Fans are available from sizes 15" to

    75" and are used extensively in Fire

    Hazard Areas.

    Roof Extractor Unit :

    MARATHON Electric Roof Extra ctorUnits are available from sizes 19" to

    60", fitted with Hood and Bottom Plate.

    These units are used on the roof to

    extract and exhaust contaminated air.

    Belt Driven Fan :

    MARATHON Electric Belt Driven Fans

    are available from sizes 19" to 75".

    Fans are driven by belt and pulley

    arrangement. The motor is located

    outside the air stream.

    Accessories :

    Following (optional) accessories are

    also available.

    s Louvre Shutter

    s Wall Cowl and Bird Screen

    s Filter / Filter Frame with a da pter

    cone

    s Dampers

    MARATHON Electric Bifurca ted Fans

    are available from sizes 19" to 75".

    These fans are used to handle

    hazardous air, where motors are kept

    outside the air stream.

    Flame Proof Fans :

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    FAN MODEL MOTOR RATING L L1 A B C D E F G K M N P

    12K/ K37-P2 0.37 kW 2 POLE

    12K/ K55-P2 0.55 kW 2 POLE

    15J/ K37-P4 0.37 kW 4 POLE

    15J/ K55-P2 0.55 kW 2 POLE

    15J/ K75-P2 0.75 kW 2 POLE15J/ 1 K1-P2 1.1 kW 2 POLE

    15J/ 1K5-P2 1.5 kW 2 POLE 406

    19J/ K37-P4 0.37 kW 4 POLE

    19J/ K75-P4 0.75 kW 4 POLE

    19J/ 1K5-P2 1.5 kW 2 POLE 420 225 483 541 311 483 438 8 14 40x6 36 14 640

    19J/ 2K2-P2 2.2 kW 2 POLE 450

    19J/ 3K7-P2 3.7 kW 2 POLE 520

    24J/ K37-P6 0.37 kW 6 POLE

    24J/ K55-P6 0.55 kW 6 POLE

    24J/ K75-P4 0.75 kW 4 POLE

    24J/ 1 K1-P4 1.1 kW 4 POLE

    24J/ 1K5-P4 1.5 kW 4 POLE 430

    24J/ 2K2-P4 2.2 kW 4 POLE 460

    30J/ K55-P6 0.55 kW 6 POLE

    30J/ K75-P6 0.75 kW 6 POLE 22530J/ 1K1-P6 1.1 kW 6 POLE 450

    30J/ 1K5-P6 1.5 kW 6 POLE 480 280 762 821 483 762 711 12 14 40x6 36 18 920

    30J/ 1K5-P4 1.5 kW 4 POLE 450 225

    30J/ 2K2-P4 2.2 kW 4 POLE 480

    30J/ 3K7-P4 3.7 kW 4 POLE 280

    30J/ 5 K5-P4 5.5 kW 4 POLE

    38J/ 1K5-P6 1.5 kW 6 POLE 510

    38J/ 2K2-P6 2.2 kW 6 POLE 560

    38J/ 3K7-P6 3.7 kW 6 POLE 280 36

    38J/ 5 K5-P6 5.5 kW 6 POLE

    38J/ 5K5-P4 5.5 kW 4 POLE 560 965 1035 597 965 914 16 18 65x6 18 1160

    38J/ 7K5-P4 7.5 kW 4 POLE 590

    38J/ 11K-P4 11 kW 4 POLE

    38J/ 15K-P4 15 kW 4 POLE

    38J/ 18K5-P4 18.5 kW 4 POLE 870 48J/ 5K5-P6 5.5 kW 6 POLE 640

    48J/ 7K5-P6 7.5 kW 6 POLE 770 305 41

    48J/ 11K-P6 11 kW 6 POLE 770

    48J/ 15K-P6 15 kW 6 POLE 870

    48J/ 18K5-P6 18.5 kW 6 POLE 910 1219 1289 737 1220 1143 20 18 65x6 76 22 1480

    48J/ 18K5-P4 18.5 kW 4 POLE 870 500 41

    48J/ 22K-P4 22 kW 4 POLE 870

    48J/ 30K-P4 30 kW 4 POLE 910

    48J/ 37K-P4 37 kW 4 POLE

    48J/ 45K-P4 45 kW 4 POLE

    60J/ 18K5-P6 18.5 kW 6 POLE 920

    60K/ 22K-P6 22 kW 6 POLE 920

    60J/ 30K-P6 30 kW 6 POLE 1000 1526 1626 921 1524 1422 24 18 65x8 78

    60J/ 37K-P6 37 kW 6 POLE 1060

    60J/ 45K-P6 45 kW 6 POLE 60J/ 55K-P6 55 kW 6 POLE

    LO N G CASIN G DUCT MO UN TED SHO RT CASIN G WALL MO UN TED

    38 0

    38 0

    40 6

    40 6

    43 0

    52 4

    59 0

    760 305

    1000 76

    41

    225 610 668 381 610 559 12 14 40x6 36 18 770

    225 305 349 203 305 273 8 10 40x6 36 14 440

    225 381 425 241 381 343 8 11 40x6 36 14 530

    Notes :

    [1] All dimensions are in mm subject to tolerence as per IS 2102. [2] Power Supply 415 V 10%, 3 PH, 50 Hz 5%, AC [3] Motor Degree of protection : IP-55

    [4] Motor Class of Insulation : 'F' (temp limited to class ' B') [5] Painting Specification - 1 Coat of primer & 1 coat of synthetic enamel paint of colour D. A. Grey

    L1

    BPCD

    AINSIDE

    M

    A

    IRFLOW

    C.L.

    OFINSP

    DOOR

    NO OFF WINGS DEPENDS ON FANMODEL

    'F' NOS 'G' HOLES EQUISPACED ON

    'K' FLANGE. HOLES ON CRS FOR SIZES24J, 30J, 48J & 60J, OFF CENTRES FOROTHER SIZES.

    CLOF INSP DOOR

    'C'

    'E' CRS. 4 NO S 12 HOLES FOR12K-24J FANS

    4 NO S 14 HOELS FOR30J-60 J FANS

    4 LUGS 12K-30J FAN5 LUGS 38J-48J FAN

    'N ' HOLESAT'P' PCD.

    ' F ' N O S ' G ' H O L E S

    E Q U I S P A C E D O N ' K ' F L A N G E .

    H O L E S O N C R S F O R S I Z E S 2 4 J -

    3 0 J & 4 8 J , O F F C E N T ER S F O R

    O T H E R S I Z E S .

    NO LEG FOR1 2 K-24J

    FANS 4 NOS 14 HOLES

    FOR30 J-48J FANS

    'D' 'E' CRS.

    'D'

    'C'

    AIR

    FLOW

    ELEVATIO N VIEW FRO M IMP ELLER END ELEVATIO N

    VIEW FRO M IMP ELLER END

    M

    'A'Inside

    'B'PCD

    Ta ble 1

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    SELECTION CHART STAN DARD AXIAL FLO W FAN

    Ta b le 2

    Sl. Fa n Mo d el Fa n d ia Mo to r ra tin g Moto r F/ S Free a ir Vo lum e flo w in m 3 / h r a t d ifferen t Sta tic p ressu re in m m w g

    No. in m m kw / p o le in rp m m 3/ h r 5 10 15 20 25 30 35 40 50 60 7 0 80 9 0 100 110

    1 1 2 K/ K3 7 -P2 3 0 5 0 . 3 7 / 2 2 8 0 0 2 3 0 0 2 0 0 0 1 7 5 0 1 4 0 0

    2 1 2 K/ K3 7 -P2 3 0 5 0 . 3 7 / 2 2 8 0 0 3 9 0 0 3 2 0 0 3 0 0 0 2 6 5 0

    3 1 2 K/ K5 5 -P2 3 0 5 0 . 5 5 / 2 2 8 0 0 4 4 0 0 3 8 5 0 3 6 5 0 3 3 0 0

    4 1 5 J / K3 7 -P4 3 8 1 0 . 3 7 / 4 1 4 4 0 1 7 5 0 1 4 0 0 8 5 0

    5 1 5 J / K3 7 -P4 3 8 1 0 . 3 7 / 4 1 4 4 0 4 5 0 0 3 7 0 0 3 1 0 0

    6 1 5 J / K5 5 -P2 3 8 1 0 . 5 5 / 2 2 8 5 0 4 5 0 0 4 1 0 0 3 9 0 0 3 7 0 0 3 3 0 0 3 0 0 0 2 6 0 0

    7 1 5 J / K7 5 -P2 3 8 1 0 . 7 5 / 2 2 8 5 0 5 6 0 0 5 3 0 0 5 1 0 0 5 0 0 0 4 6 0 0 4 3 0 0 3 7 0 0

    8 1 5 J / 1 K1 -P2 3 8 1 1 . 1 / 2 2 8 5 0 7 2 0 0 6 7 0 0 6 5 0 0 6 2 0 0 5 7 0 0 5 4 0 0 5 0 0 0

    9 1 5 J / 1 K5 -P2 3 8 1 1 . 5 / 2 2 8 5 0 8 5 0 0 8 0 0 0 7 8 5 0 7 3 0 0 7 1 0 0 6 8 0 0 6 3 0 0

    1 0 1 9 J / K3 7 -P4 4 8 3 0 . 3 7 / 4 1 4 4 0 6 7 5 0 6 0 0 0 5 5 0 0 4 4 0 0

    1 1 1 9 J / K7 5 -P4 4 8 3 0 . 7 5 / 4 1 4 4 0 8 6 0 0 8 0 0 0 7 5 0 0 6 2 0 0

    1 2 1 9 J / 1 K5 -P2 4 8 3 1 . 5 / 2 2 9 0 0 7 5 0 0 6 5 0 0 6 2 0 0 6 0 0 0 5 8 0 0 5 2 0 0 4 5 0 0 3 5 0 0

    1 3 1 9 J / 2 K2 -P2 4 8 3 2 . 2 / 2 2 9 0 0 1 1 5 0 0 1 0 0 0 0 9 8 0 0 9 5 0 0 9 0 0 0 8 6 0 0 7 5 0 0 6 5 0 0

    1 4 1 9 J / 3 K7 -P2 4 8 3 3 . 7 / 2 2 9 0 0 1 5 3 0 0 1 4 2 0 0 1 3 8 5 0 1 3 6 0 0 1 3 1 0 0 1 2 7 0 0 1 1 7 0 0 1 0 5 0 0

    1 5 2 4 J / K3 7 -P6 6 1 0 0 . 3 7 / 6 9 4 0 4 9 0 0 4 0 0 0 2 2 0 0

    1 6 2 4 J / K5 5 -P6 6 1 0 0 . 5 5 / 6 9 4 0 1 1 0 0 0 8 7 0 0 8 0 0 0

    1 7 2 4 J / K7 5 -P4 6 1 0 0 . 7 5 / 4 1 4 4 0 1 0 0 0 0 9 0 0 0 8 3 0 0 7 0 0 0

    1 8 2 4 J / 1 K1 -P4 6 1 0 1 . 1 / 4 1 4 4 0 1 3 5 0 0 1 2 0 0 0 1 0 0 0 0 9 8 0 0

    1 9 2 4 J / 1 K5 -P4 6 1 0 1 . 5 / 4 1 4 4 0 1 5 5 0 0 1 3 6 0 0 1 3 0 0 0 1 1 3 0 0

    2 0 2 4 J / 2 K2 -P4 6 1 0 2 . 2 / 4 1 4 4 0 1 7 0 0 0 1 6 5 0 0 1 5 5 0 0 1 4 0 0 0

    2 1 2 4 K/ 5 K5 -P2 6 1 0 5 . 5 / 2 2 9 5 0 1 9 5 0 0 1 8 0 0 0 1 7 9 0 0 1 7 8 0 0 1 7 1 0 0 1 6 5 0 0 1 5 5 0 0 1 4 5 0 0 1 3 5 0 0 1 2 3 0 0 1 1 0 0 0

    2 2 2 4 K/ 7 K5 -P2 6 1 0 7 . 5 / 2 2 9 5 0 2 2 5 0 0 2 1 5 0 0 2 1 2 5 0 2 1 0 0 0 2 0 5 0 0 2 0 0 0 0 1 9 0 0 0 1 8 5 0 0 0 1 7 5 0 0 1 6 0 0 0 1 4 5 0 0

    2 3 2 4 K/ 1 1 K-P2 6 1 0 1 1 / 2 2 9 5 0 2 8 5 0 0 2 7 0 0 0 2 6 7 5 0 2 6 5 0 0 2 6 0 0 0 2 5 5 0 0 2 4 5 0 0 2 3 0 0 0 2 2 0 0 0 2 1 0 0 0 2 0 0 0 0

    2 4 3 0 J / K5 5 -P6 7 6 2 0 . 5 5 / 6 9 4 0 1 0 5 0 0 9 5 0 0 8 0 0 0 6 0 0 0

    2 5 3 0 J / K7 5 -P6 7 6 2 0 . 7 5 / 6 9 4 0 1 5 0 0 0 1 3 5 0 0 1 1 7 5 0 9 0 0 0

    2 6 3 0 J / 1 K1 -P6 7 6 2 1 . 1 / 6 9 4 0 1 8 0 0 0 1 7 0 0 0 1 5 0 0 0 1 2 0 0 0

    2 7 3 0 J / 1 K5 -P6 7 6 2 1 . 5 / 6 9 4 0 2 1 5 0 0 2 0 0 0 0 1 8 0 0 0 1 5 8 0 0

    2 8 3 0 J / 1 K5 -P4 7 6 2 1 . 5 / 4 1 4 5 0 1 4 0 0 0 1 3 0 0 0 1 2 0 0 0 1 1 3 0 0 1 0 2 5 0 9 0 0 0 8 0 0 0

    2 9 3 0 J / 2 K2 -P4 7 6 2 2 . 2 / 4 1 4 5 0 1 8 5 0 0 1 7 0 0 0 1 5 8 0 0 1 5 0 0 0 1 4 0 0 0 1 2 8 0 0 1 1 0 0 0

    3 0 3 0 J / 3 K7 -P4 7 6 2 3 . 7 / 4 1 4 5 0 2 2 0 0 0 2 0 5 0 0 1 9 8 0 0 1 8 5 0 0 1 7 8 0 0 1 6 5 0 0 1 4 5 0 0

    3 1 3 0 J / 5 K5 -P4 7 6 2 5 . 5 / 4 1 4 5 0 3 4 0 0 0 3 2 0 0 0 3 1 0 0 0 2 9 0 0 0 2 7 5 0 0 2 6 0 0 0 2 4 0 0 0

    3 2 3 8 J / 1 K5 -P6 9 6 5 1 . 5 / 6 9 6 0 1 9 5 0 0 1 7 0 0 0 1 5 2 5 0 1 3 0 0 0 9 8 0 0

    3 3 3 8 J / 2 K2 -P6 9 6 5 2 . 2 / 6 9 6 0 2 5 0 0 0 2 1 5 0 0 1 9 5 0 0 1 8 0 0 0 1 4 8 0 0

    3 4 3 8 J / 3 K7 -P6 9 6 5 3 . 7 / 6 9 6 0 3 6 5 0 0 3 3 5 0 0 3 1 5 0 0 2 9 5 0 0 2 6 5 0 0

    3

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    3 5 3 8 J / 5 K5 -P6 9 6 5 5 . 5 / 6 9 6 0 4 5 0 0 0 4 2 0 0 0 3 9 0 0 0 3 7 0 0 0 3 4 0 0 0

    3 6 3 8 J / 5 K5 -P4 9 6 5 5 . 5 / 4 1 4 7 5 3 0 0 0 0 2 6 0 0 0 2 5 0 0 0 2 4 5 0 0 2 3 0 0 0 2 2 0 0 0 1 8 0 0 0 1 5 0 0 0

    3 7 3 8 J / 7 K5 -P4 9 6 5 7 . 5 / 4 1 4 7 5 3 9 0 0 0 3 5 0 0 0 3 3 0 0 0 3 2 5 0 0 3 0 5 0 0 3 0 0 0 0 2 6 0 0 0 2 2 0 0 0

    3 8 3 8 J / 1 1 K -P4 9 6 5 1 1 / 4 1 4 7 5 4 8 0 0 0 4 6 0 0 0 4 5 0 0 0 4 4 0 0 0 4 2 5 0 0 4 1 0 0 0 3 7 5 0 0 3 2 5 0 0

    3 9 3 8 J / 1 5 K -P4 9 6 5 1 5 / 4 1 4 7 5 6 1 0 0 0 5 6 0 0 0 5 4 5 0 0 5 4 0 0 0 5 1 5 0 0 5 1 0 0 0 4 7 0 0 0 4 4 0 0 0

    4 0 3 8 J / 1 8 K5 -P4 9 6 5 1 8 . 5 / 4 1 4 7 5 6 8 0 0 0 6 5 0 0 0 6 3 0 0 0 6 2 0 0 0 6 0 0 0 0 5 8 5 0 0 5 4 5 0 0 5 1 0 0 0

    4 1 4 8 J / 5 K5 - P6 1 2 1 9 5 . 5 / 6 9 7 5 4 2 0 0 0 3 6 0 0 0 3 4 5 0 0 3 0 5 0 0 2 8 0 0 0 2 2 0 0 0

    4 2 4 8 J / 7 K5 - P6 1 2 1 9 7 . 5 / 6 9 7 5 5 5 0 0 0 4 7 0 0 0 4 5 5 0 0 4 3 0 0 0 3 9 0 0 0 3 5 0 0 0

    4 3 4 8 J / 1 1 K- P6 1 2 1 9 1 1 / 6 9 7 5 7 2 0 0 0 6 2 0 0 0 5 9 5 0 0 5 7 0 0 0 5 2 5 0 0 5 0 0 0 0

    4 4 4 8 J / 1 5 K- P6 1 2 1 9 1 5 / 6 9 7 5 8 3 0 0 0 7 7 0 0 0 7 4 5 0 0 6 9 0 0 0 6 7 5 0 0 6 4 0 0 0

    4 5 4 8 J / 1 8 K5 -P6 1 2 1 9 1 8 . 5 / 6 9 7 5 9 0 0 0 0 8 5 0 0 0 8 1 0 0 0 7 5 0 0 0 7 3 0 0 0 7 0 0 0 0

    4 6 4 8 J / 1 8 K5 -P4 1 2 1 9 1 8 . 5 / 4 1 4 8 0 6 2 0 0 0 5 0 0 0 0 4 5 0 0 0 4 1 0 0 0 3 8 0 0 0 3 5 0 0 0 2 8 0 0 0

    4 7 4 8 J / 2 2 K- P4 1 2 1 9 2 2 / 4 1 4 8 0 7 1 0 0 0 5 9 0 0 0 5 7 0 0 0 5 4 0 0 0 4 9 0 0 0 4 4 0 0 0 3 9 0 0 0

    4 8 4 8 J / 3 0 K- P4 1 2 1 9 3 0 / 4 1 4 8 0 9 2 0 0 0 8 0 0 0 0 7 5 0 0 0 7 0 0 0 0 6 8 0 0 0 6 2 0 0 0 5 3 0 0 0

    4 9 4 8 J / 3 7 K- P4 1 2 1 9 3 7 / 4 1 4 8 0 1 0 2 0 0 0 8 8 0 0 0 8 4 0 0 0 8 0 0 0 0 7 5 0 0 0 7 1 0 0 0 6 7 0 0 0

    5 0 4 8 J / 4 5 K- P4 1 2 1 9 4 5 / 4 1 4 8 0 1 5 0 0 0 0 1 0 2 0 0 0 9 8 0 0 0 9 5 0 0 0 9 0 0 0 0 8 5 0 0 0 7 8 0 0 0

    5 1 6 0 J / 1 8 K5 -P6 1 5 2 4 1 8 . 5 / 6 9 7 5 5 0 0 0 0 4 0 0 0 0

    5 2 6 0 J / 2 2 K- P6 1 5 2 4 2 2 / 6 9 7 5 6 2 0 0 0 5 0 0 0 0

    5 3 6 0 J / 3 0 K- P6 1 5 2 4 3 0 / 6 9 7 5 8 5 0 0 0 6 9 0 0 0

    5 4 6 0 J / 3 7 K- P6 1 5 2 4 3 7 / 6 9 7 5 1 0 0 0 0 0 9 0 0 0 0

    5 5 6 0 J / 4 5 K- P6 1 5 2 4 4 5 / 6 9 7 5 1 2 4 0 0 0 1 0 8 0 0 0

    5 6 6 0 J / 5 5 K- P6 1 5 2 4 5 5 / 6 9 7 5 1 3 9 0 0 0 1 2 7 0 0 0

    5 7 7 5 J1 / 2 / 3 0 K -P6 1 9 0 5 3 0 / 6 9 7 5 1 1 0 0 0 0 9 3 0 0 0 8 0 0 0 0 5 0 0 0 0

    5 8 7 5 J1 / 2 / 3 7 K -P6 1 9 0 5 3 7 / 6 9 7 5 1 3 0 0 0 0 1 1 5 0 0 0 1 0 0 0 0 0 6 0 0 0 0

    5 9 7 5 J1 / 2 / 5 5 K -P6 1 9 0 5 5 5 / 6 9 7 5 1 8 0 0 0 0 1 6 5 0 0 0 1 5 0 0 0 0 1 3 0 0 0 0

    6 0 7 5 J / 2 / 7 5 K- P6 1 9 0 5 7 5 / 6 9 7 5 2 1 8 0 0 0 2 0 8 0 0 0 1 8 8 0 0 0 1 6 8 0 0 0

    6 1 7 5 J / 5 5 K- P6 1 9 0 5 5 5 / 6 9 7 5 1 0 5 0 0 0 9 5 0 0 0 8 5 0 0 0

    6 2 7 5 J / 7 5 K- P6 1 9 0 5 7 5 / 6 9 7 5 1 4 0 0 0 0 1 1 5 0 0 0 9 5 0 0 0

    NOTE :

    1 . Fa n s le ctio n is b a se d on a i r a t 2 0 C and density 1.2 kg/ m3

    2 . Fa n p e r fo rma n c e a n d to le ra n ce a s p e r IS 3 5 8 8 1 9 8 7 .

    3. For selection of Fans in other solidity (no of bla des), or in intermed iate performa nce point please refer to Regiona l/ Bran ch Offices or Factory

    Sl. Fa n Mod el Fa n d ia Moto r ra ting Mo to r F/ S Free a ir Vo lum e flo w in m 3 / h r a t d ifferen t Sta tic p ressu re in m m w g

    No . in m m kw / p o le in rp m m 3/ h r 5 10 15 20 25 30 35 40 50 60 7 0 80 9 0 100 110

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    Features

    MARATHON Electric offers wide range

    of Centrifugal Fans with highly efficient

    impellers of type Backward Inclined,

    Backward Curved, Aerofoiled, ForwardCurved and Straight Radial, depending

    upon application.

    MARATHON Electric Centrifuga l Fans

    are suitable for air delivery upto

    30 0,0 00 M3/ Hr and Sta tic Pressure

    upto 800 MM WG. Fans are available

    both in single inlet single width (SISW)

    and in double inlet double width

    (DIDW) versions.

    Construction :

    Centrifugal Fans are usually made of

    mild steel (IS 1079/ 2062) rigid casing

    with Inspection window and drain plug.

    The impeller is mounted on C-40 (IS

    CENTRIFUGAL FAN 1570) shaft. Double Row Ball/ Sphericalroller Bearings are used for smooth

    operation. Fans are either belt driven

    or direct coupled. Direct driven Fans,

    with Impeller mounted directly on motor

    shaft, are also available.

    s Standard Fans are painted with

    synthetic enamel paint.s Other than mild steel, fans are

    offered in Stainless Steel and

    Aluminium Construction also,

    depending on application need.

    s For High temperature (from 100C

    to 350C) application, Aluminium

    cooling disc is provided and the

    fan is painted with Heat Resistant

    Aluminium Paint.

    Special features

    Following Special Features are

    provided depending application need.

    s Spark Proof Construction.

    s FRP Coating.

    s Zinc Sprayed.

    s Epoxy Paint.

    s Chlorinated rubber paint.

    Following optional acessories are also

    available.

    s Common base frame for Fan and

    Motor.

    s V-belt drive set.

    s Belt guard.

    s Motor slide rail

    s Foundation bolt

    s Filter

    s Filter frame with adapter cone.

    s Inlet and outlet flexible connection.

    s Inlet box

    s Inlet and outlet dampers

    s Antivibration mounting.

    Backward inclind Backward curved

    Radial

    Backplate pa ddleAerofoil

    Radial tipped

    LG 90

    LG 270LG 0 LG 45

    %

    P

    Ps

    Fanstaticp

    ressurePs

    ImprellerPowerP

    Fanefficiency

    %

    Discharge Rotation :

    Fans are available in different discharge angles from 0

    to 315 both in left hand and right hand rotation viewing

    from motor end with motor position a s X, Y, W & Z.

    Volum e Flow

    LG 315

    Z

    Y X

    W

    Fan

    Reverse the rotation is RD

    Motor pos ition

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    Arrangement 1

    Single inlet pedestal

    For belt drive. Impeller

    overhung. Two bearings on full-

    depth pedestal.

    Arrangement 3

    Single inlet bearer bar

    For belt drive. One bearing on

    each side of casing, supported

    by bearer bars.

    Arrangement 4

    Single inlet direct drive and stool

    For direct drive. Impeller overhung on

    motor shaft. No bearings on fan. Motor

    feet supported by full-depth pedestal.

    Arrangement 6

    Double inlet bearer bar

    Double inlet, double width fan for

    belt drive. One bearing in each inlet,

    supported by bearer bars.

    Arrangement 7

    Single inlet coupling

    For coupling drive. Generally as

    arrangement 1 but pedestal extended

    to receive motor.

    Arrangement :

    Fans are manufactured in five different drive arrangements depending upon application.

    Other p roducts

    Pedestal Man cooler

    size 19" to 36"

    Bracket Man cooler

    size 19" to 36"

    Tubu lar Ma n cooler

    size 19" to 48"

    Propeller Fan GPN

    size 12" to 18"

    Prop eller Fa n BVN/ BVA

    size 18" to 36"

    Pedestal Air circulators

    size 24"

    Bracket Air Circulator

    size 24" to 30"

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    MEMI/CAT/AFFCFF/1108/02

    ReplacesRMGFETC003.C.01/2008

    Specia lized custom b uilt motors Specia lists in short cycle deliveries

    Mara thon Electric Motors (Ind ia) Ltd. Registered & Head Office: 58 , Tara tala Road, Kolkata - 70 00 24 . LT Motor & Fan Factory, Paha rpur Works, 58 ,

    Tara tala Roa d, Kolkata - 7 00 02 4, Fax: 2 46 9 53 69 / 85 30 , Phone : 09 90 39 00 80 1. Larg e LT Motor & HT Motor Factory, AEI Works 1, Tara tala Roa d,

    Kolkata- 70 002 4. Marathon Regional Offices:New Delhi:70 8, Eros Building, 56, Nehru Place; Tel: 011 416 0 71 23 , 093 132 904 02. Chandigarh:

    Chamber No. 8 a, 2 Floor, Sco No. 24 41-42 , Sector 22 -C; Tel: 093 161 024 51. Mumbai:11 4 Na vneelam, R.G. Thad ani Ma rg, Worli; Tel: 02 2 32 65

    9844, 09322645753, Fax: 022 3040 1555. Pune: 41/ 14, Office Club Swaroop Complex Karve Road; Tel: 020 254 6 3 978 , 09 371 025 388 . Ahmedabad:

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