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HDCB and HDCS high pressure fansTwo-stage centrifugal fans for high pressure and low flows

Technical data 2010

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Centrifugal fan HDCB - Description Page 3

The HDCB is a two-stage centrifugal fan for clean airat high pressure and low flows.

Max. gas temp. 100C

Max. pressure rise 30 kPa

Larger pressure rises can often be achieved by

connecting two fans in series.

Please contact us with all your enquiries.

The fan is designed to be belt-driven.

A base frame, for mounting the fan and motor as aunit, is available as an optional extra.The frame canbe supplied with or without vibration damping andwith the fan, motor, belt drive and belt guard readyfitted at the factory.

Description

The fan has two impellers on a single shaft and inspectioncovers in the backplate and end faces.The end faces,with their bearing supports, are bolted onto the sides ofthe fan casing. To provide good sealing, there is a rubbergasket between the contact surfaces of the casing andend faces.There are special seals where the shaft passes throughthe end faces and the partition plate.

The impeller is of a welded construction and, in sizes010 - 016, has straight, radial blades. In sizes 020 - 040,the blades are backward-curved. Both impeller typeshave inlet shrouds.

Spherical roller bearings are used. The plummer block issteel and designed to facilitate continuous lubrication.The inlet and outlet connectors are circular.

Materials and surface treatments: Steel coated with a primer.Alternatively, stainless steel SS 23 33 or acid-proof steelSS 23 43 with the shaft in SS 23 24.

Accessories are listed separately in this catalogue.

Base frame

The base frame is a primed steel construction and is sui-table for all discharge directions. Other surface coatingsand stainless steels are also available. Please contact uswith all your enquiries.The base frame is delivered with a separately ordered fanand motor (see the specifications on page 4).

Flexible connecting ducts

Suitable for both inlet and outlet, these are made of aneoprene-coated, woven polyester with a spiral steelinsert.Flexible connecting ducts are fitted using ring clamps; twoof these are supplied with each duct.

Protective screen

Suitable for the inlets and outlets of, respectively, freeinlet and free outlet fans. Screens have a galvanized steelframe; the grille itself is also galvanized and is of a cre-nellated design.

LubricatorThis screws simply into the top of the plummer block.Lubrication interval and dose are both adjustable. Thelubricator is recommended for high speed fans (thesenormally have short lubrication intervals) and, in particu-lar, for fans in continuous operation.

Belt drive, belt guard

Belt drive HDCZ-01 can generally be selected for all fansizes (see pages 15 - 16). In other cases, the min. diameterof the pulley on the fan shaft must be taken into conside-ration (see page 7). Belt guards are ventilated and have

openable covers to facilitate easy inspection of belt condi-tion.

Motor

Refer to pages 19 - 21.

Sizes

010, 012, 016, 020, 025, 031 and 040.

Instructions

All necessary instructions are supplied at delivery.

Packaging

Fans are delivered on wooden battens; inlets and outletsare covered.

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Centrifugal fan HDCB - Ordering key Page 4

Centrifugal fan HDCB-aaa-bb-c-d

Sizes 010, 012, 016, 020, 025, 031, 040

Discharge direction: See table 1

Inlet, positioning

1 = 90 in relation to the outlet (standard model)2 = parallel to the outlet

Materials, surface treatments

1 = steel, coated with a primer

2 = stainless steel SS 23 33

3 = acid-proof steel SS 23 43

Motor and belt drive are specified separately.

Belt drive inc. belt guard HDCZ-01-bbb-c-dd

Sizes: See the "Selection of belt drive" tables, pages 15 - 16.

Delivery options:

1 = fitted to the fan9 = not fitted

Fan sizes: See the table on page 15.

Motor

For ordering key and motor tables, see pages 19 and 20 respectively.

Base frame HDCZ-11-b-cc-1

Design

1 = fitted with separately specified fan

2 = fitted with separately specified fan (including vibration damping)3 = fitted with separately specified fan, motor, belt drive and belt guard (no vibration damping)4 = fitted with separately specified fan, motor, belt drive, belt guard and vibration damping

Variants: As per the table on page 7

Flexible connecting ducts HDCZ-13-bbb

Sizes (the same as fan size)

Protective screen HDCZ-14-bbb


Lubricator (set of 2) HDCZ-15

Discharge directionTable 1Fan Angle Code Fan Angle Codesize V bb size V bb

0 11 0 11

01030 14 18 12

012270 16 36 15

300 19 031 270 16330 23 040 288 17306 20

0 11 324 22

01622.5 13 342 25

020270 16

025292.5 18315 21337.5 24

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Centrifugal fan HDCB - Charts Page 5

The charts are for gas at a density of 1.2 kg/m3. Optimum working ranges are shaded in grey.

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Centrifugal fan HDCB - Charts Page 6


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Centrifugal fan HDCB - Dimensions and weights Page 7

Size A A1 A2 B C E F G H J K L M N P R S U V X Y* Z

010 777 658 686 457 265 214 381 242 320 6 360 151 46 4 18 305 71 156 166 97 125 215012 919 766 773 549 304 250 436 274 370 6 410 174 51 4 18 375 83 195 180 97 160 219016 1090 895 916 650 359 290 505 319 440 6 405 167 56 4 18 465 98 245 203 105 200 249

020 1308 1056 1056 783 422 345 586 367 525 6 455 188 66 6 18 595 123 315 222 98 250 240025 1580 1259 1254 950 498 415 686 428 630 6 530 221 66 8 18 737 145 395 255 115 315 258031 1940 1548 1477 1180 601 510 838 512 760 10 725 315 88 8 26 916 175 494 290 124 400 263040 2365 1870 1742 1445 735 615 1005 618 920 10 850 381 88 8 26 1143 207 624 328 127 500 266

Size d j k m m1 n Wgt., kg

010 35 38 10 118 80 100012 40 43 12 121 80 140016 50 53,5 14 143 100 200

020 50 53,5 14 142 100 280025 60 64 18 142 120 95 420031 70 74,5 20 138 120 130 800040 75 79,5 20 178 120 150 1150

Dimensions

Min. permissible diameter of belt pulley on the fan shaft

Dmin = k1 P1 1000n

where Dmin = min. permissible diameter, mm, of belt pulley for the fanP1 = design power transmission capacity, kW, of the belt driven = fan speed r/mink1 = constant

Size 010 012 016 020 025 031 040

k1 36 18 12 11 7,5 5,5 4

Max. witdth of belt pulley1)

100 100 160 160 160 160 160

1) Consult Flkt Woods AB if the calculation shows that a wider belt pulley is

required or if an asymmetrical pulley is used.

Selection of base frame HDCZ-11-b-cc

Fan size Base frameAll

directions Code suffix ccof discharge Motor size as per IEC

132 160 180 200 225 250 280S 280M 315S 315M 355S010 01 02 012 03 03 04 016 05 06 06 07

020 08 08 09 09 09 025 10 10 11 11 11 031 2) 12 13 14 15 16 17 18 19040 2) 20 21 22 23 24 25 26 27

2) The following applies if the code suffix cc = 1227.

Select an even number if bb in the fan code is 11, 12,

15 or 25

Select an odd number if bb in the fan code is 16, 17,

20 or 22

* External dimensions

Dimensions and weights

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Base frame HDCZ-11-b-cc - Dimensions and weights Page 8

Base frame HDCZ-11-b-ccLocations of the fan and motor for different directions of discharge

Sizes 010, 012: code suffix bb = 11, 14Sizes 016025: code suffix bb = 11, 13, 24Sizes 031, 040: code suffix bb = 11, 12, 15, 25

Sizes 010, 012: code suffix bb = 16, 19, 23Sizes 016025: code suffix bb = 16, 18, 21Sizes 031, 040: code suffix bb = 16, 17, 20, 22

Code Number of Max.

suffix cc A B C D E F G H J K L M N P R S Wgt. * mountings motor wgt. **

01, 02 1172 520 460 106 120 30 1 722 181 4 15 149 110 128 82 11 55 4 12503, 04 1430 585 525 129 120 31 1 1052 204 4 15 180 110 128 82 11 75 4 22505, 06, 07 1515 685 620 125 140 31 2 572 200 6 15 220 110 128 82 11 95 5 380

08 1630 860 795 146 140 30 2 565 221 6 15 280 110 128 82 11 117 5 30009 1630 860 795 146 140 35 2 675 221 6 22 280 144 172 110 13,5 123 5 50010 1735 952 882 191 160 35 2 562 266 6 22 342 144 172 110 13,5 137 5 300

11 1735 952 882 191 160 38 2 670 266 6 22 342 144 172 110 13,5 142 5 5501219 1920 1166 1091 265 180 35 2 755 365 6 22 422 144 172 110 13,5 240 5 6502023 2160 1430 1350 331 200 45 2 775 431 6 22 519 182 212 152 13,5 320 5 700

24, 25 2160 1430 1350 331 200 44 2 865 431 6 22 519 182 212 152 13,5 320 5 90026, 27 2160 1430 1350 331 200 47 2 865 431 6 22 519 182 212 152 13,5 365 5 1100

** Applicable when the motor is mountedon a base frame with anti-vibrationmountings (code suffix b = 2 and 4).Weight in kg.

* Base frame only

Distance between motor and fan shaft centres

Motor Distance bet-Size size as ween centres

per IEC min max

010132 545 740

160 560 715

160 685 825

012 180 655 865

200 660 855

180 760 965

016 200 770 930225 780 930

250 745 950

200 880 1065

020225 890 1040

250 860 1055

280 820 1080


per IEC min max

200 945 1125

025225 950 1100

250 910 1110

280 870 1130

280 1050 1300031

315 1070 1270

280 1280 1510040 315 1300 1470

355 1260 1480

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Centrifugal fan HDCS - Description Page 9

HDCS is a two-stage centrifugal fan for damp andcorrosive gases at high pressure and low flows.It is especially suitable as a vacuum fan for the wiresections of pulp and paper machines.The fan easilyhandles the small quantities of fibres common in

such applications.The fan is designed to be belt-driven.

Max. gas temp. 100C

Max. pressure rise 30 kPa

Larger pressure rises can often be achieved by connec-ting two fans in series. Please contact us with all yourenquiries.

Description

The fan has two impellers on a single shaft and inspec-tion covers in the backplate and end faces. These covers

give access to the impeller and all compartments of thecasing. The end faces, with their bearing supports, arebolted onto the sides of the fan casing. To provide goodsealing, there is a rubber gasket between the contact sur-faces of the casing and end faces.There are special seals where the shaft passes throughthe end faces and the partition plate.

The impeller is of a welded construction and has straightradial blades and an inlet shroud.The base frame is integrated with the fan in a single unit.This has slide rails for mounting the motor.Anti-vibration mountings are included as standard. Motor

and belt drive are ordered separately.Spherical roller bearings are used. The plummer block issteel and designed to facilitate continuous lubrication.The inlet and outlet connectors are circular. As an optionalextra, they can be supplied with flanges. There are 4drain holes (1 for each compartment) with tubes leadingout through the base frame.Materials: Fan with base frame in acid-proof SS 23 43and shaft in SS 23 24.

Accessories are listed separately in this catalogue.

Flexible connecting ducts

Suitable for both inlet and outlet, these are made of aneoprene-coated, woven polyester with a spiral steelinsert.

Lubricator

This screws simply into the top of the plummer block.Lubrication interval and dose are both adjustable.The lubricator is recommended for high speed fans(these normally have short lubrication intervals) and, inparticular, for fans in continuous operation.

Counterflange

Flange standard ISO 13351, material SS 23 43.

Belt drive, belt guard

Belt drive HDCZ-01 can generally be selected for all fan

sizes (see pages 15 - 16). In other cases, the min. diameterof the pulley on the fan shaft must be taken into conside-ration (see page 7). Belt guards are ventilated and haveopenable covers to facilitate easy inspection of belt condi-tion.

Motor

Refer to pages 19 - 21.

Discharge direction

The fan has 2 standard discharge directions (codes 11and 21), see page 10.

Sizes

020, 025, 031 and 040.

Instructions

All necessary instructions are supplied at delivery.

Packaging

Fans are delivered on wooden battens; inlets and outletsare covered.

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Centrifugal fan HDCS - Ordering codes Page 10

Centrifugal fan HDCS-aaa-bb-cc-d-3

Sizes 020, 025, 031, 040

Discharge direction

11 = 021 = 315

IEC motor sizes

14 = 200L 17 = 250M 20 = 315S 23 = 355S

15 = 225S 18 = 280S 21 = 315M

16 = 225M 19 = 280M 22 = 315L

Motor and belt drive are specified separately.

Use the tables on pages 13 and 14 to check the motor sizes for each fan type.

Design

1 = Without connecting flanges at the inlet and outlet2 = With connecting flanges at the inlet and outlet

Belt drive inc. belt guard HDCZ-01-bbb-c-dd

Sizes: See the "Selection of belt drive" tables on pages 15 - 16

Delivery options:

1 = fitted to the fan9 = not fitted to the fan

Fan sizes: See the table on page 15.

Motor

For ordering key and motor tables, see pages 19 and 20 respectively.

Flexible connecting ducts (for fans with connecting flanges) HDCZ-12-bbb


Flexible connecting ducts (for fans without connecting flanges) HDCZ-13-bbb


Lubricator (set of 2) HDCZ-15

Counterflange HDCZ-17-bbb-3


Dischargedirection 11

Dischargedirection 21

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Centrifugal fan HDCS - Charts Page 11


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Centrifugal fan HDCS - Charts Page 12

Notes

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Centrifugal fan HDCS - Dimensions and weights Page 13

Discharge direction 11

Size Motor size IEC A2 B E F G H1 L U V X1 X2 X3 X4

020 200 - 280 1056 783 345 586 367 535 37 315 222 361 1409 98 240

025 200 - 280 1254 950 415 686 428 638 37 395 255 407 1543 115 258

031 280 - 315 1477 1180 510 838 512 775 36 494 290 494 1577 124 263

040 280 - 355 1742 1445 615 1005 618 875 47 624 328 585 1730 127 266

Motor IEC Z4 Z5

280M 1555 595

315S 1170 980

315M 1170 980

355S 710 1440

Table HDCS 040 Distance between motor and fan shaft centres

Size Y* Z1 Z2 Z3 Z4 Z5 d j k m m1 wgt.** Max. motor wgt.

020 250 600 126 599 710 710 50 53,5 14 142 100 630 600

025 315 772 155 747 925 925 60 64 18 142 120 750 600031 400 768 164 905 730 780 70 74,5 20 138 120 1025 900

040 500 1110 215 1150 See table See table 75 79,5 20 178 120 1460 1400

*External dimensions **Exc. motor and belt drive


per IEC min max

200 880 1065

020 225 890 1040250 860 1055

280 820 1080

200 945 1125

025225 950 1100

250 910 1110

280 870 1130


per IEC min max

280 1050 1300031

315 1070 1270280 1280 1510

040 315 1300 1470

355 1260 1480

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Centrifugal fan HDCS - Dimensions and weights Page 14

Discharge direction 21

Size Motor size per IEC A2 B2 B3 E2 F2 G2 H1 U V X1 X2 X3 X4

020 200 - 280 1056 310 410 798 410 375 535 315 222 361 1409 98 240

025 200 - 280 1254 378 485 965 485 414 638 395 255 407 1543 115 258

031 280 - 315 1477 474 593 1195 593 526 775 494 290 494 1577 124 263

040 280 - 355 1742 587 711 1457 711 630 875 624 328 585 1730 127 266

Motor per IEC Z4 Z5

280M 1555 595

315S 1170 980

315M 1170 980

355S 710 1440

Table HDCS 040 Distance between motor and fan shaft centres

Size Y* Z2 Z3 Z4 Z5 Z6 d j k m m1 Wgt.** Max. motor wgt.

020 250 126 599 710 710 665 50 53,5 14 142 100 630 600

025 315 155 747 925 925 843 60 64 18 142 120 750 600031 400 164 905 730 780 851 70 74,5 20 138 120 1025 900

040 500 215 1150 See table See table 1206 75 79,5 20 178 120 1460 1400

*External dimensions **Exc. motor and belt drive


per IEC min max

200 880 1065

020 225 890 1040250 860 1055

280 820 1080

200 945 1125

025225 950 1100

250 910 1110

280 870 1130


per IEC min max

280 1050 1300031

315 1070 1270280 1280 1510

040 315 1300 1470

355 1260 1480

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Rated power of motor: 18,5 kW

Fan CodeMotor

speed suffixSuitable for:

r/m bbb dd =

6170 170 01

5840 171 01, 02

5540 172 01, 02

5230 173 APAL-2- 01, 02

4960 174 01850-c-0 02

4670 175 2 poles 02

4420 176 Size 160L 02

4170 177 as per IEC 02, 03

3890 178 03

3650 179 03

3470 180 03

3260 181 03

Centrifugal fans HDCB/HDCS - Selection of belt drive Page 15

HDCZ-01-bbb-c-dd

Belt drive sizes 090 - 459, see the tables below

Design

1 = fitted to the ordered fan.9 = supplied ready for assembly.

Fan sizes 01 - 07, see the table below.

Check -dd against the belt drive, see the belt drive tables.

Rated power of motor: 30 kW

Fan CodeMotor


r/m bbb dd =

5910 230 02

5580 231 02

5300 232 02

5010 233 02

4720 234 02, 03

4410 235 02, 03, 04

4140 236 APAL-2- 03, 04

3890 237 03000-c-0 03, 04

3680 238 2 poles 03, 04

3480 239

Size 200L

03, 04

3310 240 as per IEC 03, 04, 05

3110 241 04, 05

2955 242 04, 05

2810 243 05

2640 244 05

2510 245 05

2370 246 05

Rated power of motor: 7,5 kW

Fan CodeMotor Suitable for:

speed suffix

r/m bbb dd =

5710 090 015370 091 01

5040 092 APAL-2- 01

4760 093 00750-c-0 01

4440 094 2 poles 01

4210 095 Size 132S 01

3970 096 as per IEC 01

3770 097 01

3570 098 01


Fan CodeMotor


r/m bbb dd =

6190 110 015860 111 01

5560 112 01

5230 113 01

4970 114 APAL-2- 01, 02

4720 115 01100-c-0 01, 02

4450 116 2 poles 01, 02

4220 117 Size 160M 01, 02

4000 118 as per IEC 01, 02

3770 119 02

3550 120 02

3350 121 02

3130 122 02


Fan CodeMotor


r/m bbb dd =

5860 200 02

5560 201 02

5230 202 02

4970 203 APAL-2- 02

4720 204 02200-c-0 02, 03

4450 205 2 poles 02, 03

4220 206 Size 180M 03

3980 207 as per IEC 03

3770 208 03

3560 209 03

3350 210 03

3130 211 03


Fan CodeMotor


r/m bbb dd =

6170 140 015840 141 01

5510 142 01, 02

5230 143 APAL-2- 01, 02

4950 144 01500-c-0 01, 02

4690 145 2 poles 01, 02

4450 146 Size 160M 02

4210 147 as per IEC 02

3970 148 02

3740 149 02

3540 150 02

Fan size

dd HDCB/HDCS

01 01002 012

03 01604 02005 02506 03107 040

Belt drive HDCZ-01comprises the following:

1. Motor pulley.

2. Fan pulley.

3. Motor bushing.

4. Fan bushing.

5. V-belt.

6. Belt guard.

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Centrifugal fans HDCB/HDCS - Selection of belt drive Page 16


Fan CodeMotor


r/m bbb dd =

5900 270 02

5600 271 025290 272 02

5010 273 03

4720 274 03

4410 275 03, 04

4210 276 APAL-2 03, 04

3930 27703700-c-0

03, 04

3670 278 2 poles 04

3500 279 Size 200L 04, 05

3300 280 as per IEC 04, 05

3120 281 04, 05

2950 282 04, 05

2800 283 05

2640 284 05

2500 285 052360 286 05


Fan CodeMotor


r/m bbb dd =

5020 300 03

4740 301 034480 302 03, 04

4140 303 APAL-2- 04

3900 304 04500-c-0 04

3690 305 2 poles 04, 05

3490 306 Size 225M 04, 05

3290 307 as per IEC 04, 05

3120 308 04, 05

2960 309 05

2810 310 05

2660 311 05

2510 312 05


Flkt-Fan Code

Motorspeed suffix

Suitable for:

r/m bbb dd =

4750 330 03

4440 331 03, 044160 332 04

3940 333 APAL-2- 04, 05

3700 334 05500-c-0 04, 05

3490 335 2 poles 04, 05

3320 336 Size 250M 04, 05

3130 337 as per IEC 05

2970 338 05

2820 339 05

2660 340 05

2520 341 05


Fan CodeMotor


r/m bbb dd =

4450 360 04

4140 361 04

3910 362 04, 05

3710 363 04, 05

3520 364APAL-2-

04, 053320 365

07500-c-005

3150 366 2 poles 05, 06

2980 367 Size 280 S 05, 06

2820 368 as per IEC 05, 06

2680 369 06

2520 370 06

2380 371 06

2250 372 06


Fan CodeMotor


r/m bbb dd =

4130 390 04

3920 391 04, 05

3700 392 04, 05

3510 393 05

3330 394 APAL-2- 053140 395 09000-c-0 05, 06

2975 396 2 poles 05, 06

2820 397 Size 280M 06

2670 398 as per IEC 06

2520 399 06, 07

2380 400 06, 07

2250 401 06, 07

2110 402 APAL-4- 07

1990 403 09000-c-0 07

1880 404 4 poles 07

1780 405 Size 280M 07

1670 406 as per IEC 07


Fan CodeMotor


r/m bbb dd =

3160 420 06

2980 421 06

2800 422 06

2650 423 APAL-4- 06, 072490 424

11000-c-006, 07

2360 425 4 poles 06, 07

2230 426 Size 315 S 07

2110 427 as per IEC 07

1980 428 071890 429 071770 430 07


Fan CodeMotor


r/m bbb dd =

3130 450 06

2970 451 06

2790 452 APAL-4- 06

2630 453 13200-c-0 06, 07

2490 454 4 poles 06, 07

2350 455 Size 315M 07

2250 456 as per IEC 07

2100 457 07

1980 458 07

1890 459 07

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Centrifugal fans HDCB/HDCS - Accessories Page 17

Flexible connecting duct HDCZ-12-bbb (HDCS only)

Lubricator HDCZ-15

Protective screen HDCZ-14-bbb

Flexible connecting duct HDCZ-13-bbb

SizeA B

bbb

010 125 3012 160 3016 200 3

020 250 3025 315 4031 400 4

040 500 4

Counterflange HDCZ-17-bbb-3 (HDCS only)

Size A B C D E F G h n tbbb o/s duct i/s flex. duct

010 50 - 70 150 125 130 - - - - - - -

012 50 - 70 150 160 165 - - - - - - -

016 50 - 70 150 200 205 - - - - - - -

020 50 - 70 150 250 255 255 292 330 12 37,5 8 6

025 80 - 100 200 315 320 320 366 405 12 42,5 8 6

031 80 - 100 200 400 405 405 448 490 12 42,5 12 6

040 80 - 100 200 500 505 505 551 600 12 47,5 12 8

Dimensions HDCZ-12, HDCZ-13 and HDCZ-17

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Centrifugal fan HDCB/HDCS - Sound data Page 18

Sound data

Total sound power level Lwtoto, dB, to connecting duct,when the fan operates on the throttling curve, which givesrise to the lowest sound power.

Correction K1

for different throttlingcurves and sound paths

Correction K2

for different sound paths

Note!Sound data

Sound levels are stated as sound power levels (ref. 10 - 12 W). The sound power level for each octave band shows the sound levelsproduced by the fan irrespective of the acoustic properties of its surroundings. This sound level is the correct basis for sound level cal-culations.Some fan manufacturers still quote sound pressure levels even though these depend on the distance from the fan and the acousticproperties of the surroundings. Sound pressure levels, sometimes weighted as dB(A) or dB(C) values, are considerably lower than thecorresponding sound power levels, Lwt. For example, at a distance of 3 m, the dB(A) value for a free inlet fan with hemisphericalsound propagation is 17 - 25 dB lower (depending on fan speed and blade type) than the total sound power level.

Sound paths: a = to connecting duct

b = to the surroundings under free inlet conditions

c = to the surroundings when the fan is connectedto inlet and outlet ducting

Approximate deviation Kok, dB,within the working range L = 1 - 2.5

Sound Speed Octave band, mid-frequency, Hz

paths range 125 250 500 1000 2000 4000 8000

a 1200-3000 -4 -6 -7 -10 -19 -26 -383000-6000 -7 -9 -6 -5 -15 -22 -33

b 1200-3000 -7 -6 -7 -8 -13 -17 -233000-6000 -9 -9 -6 -6 -10 -14 -20

c 1200-3000 -4 -6 -9 -13 -13 -17 -213000-6000 -7 -7 -7 -7 -11 -16 -21

Lwtot = Lwtoto + K1 + K2

Lw = Lwtot + Kok

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Electric motors Page 19

This catalogue section relates to 50 Hz, totally enclosed, foot-mounted, three-phase squirrel cage motors. Motors from size200 upwards are supplied with thermistor type temperature sensors as standard (see the next page). Quotations for othersizes with temperature sensors are provided on request.

Casing classes and insulation class, see page 20.

If star-delta starting is employed, the starter should be first set to thestar setting for a period corresponding to the starting time, calculatedas above, and thereafter switched to the delta setting.

Symbols

P = The motor's rated output kW

Pf = The fan's power demand at the operating speed in ques- kWtion (includes belt-drive losses where the fan is belt-driven).

PY/D = Lowest motor rating at which star-delta starting is possible kW

TS = Ratio of motor starting torque to normal torqueTN

TMAX= Ratio of maximum motor torque to normal torque

TN

nf = The fan's operating speed rpm

J = The system's moment of inertia, referred to the fan shaft1) kg m2

t = Starting time s

1) The impeller's moment of inertia is stated in the relevant fan chart.The motor's moment of inertia can generally be disregarded.

Ordering key

Motor APAL-a-bbbbb-c-0

Number of poles (see the motor tables): 2, 4

Rated output (see motor tables):

Voltage1 = 220 - 240 V delta/380 - 420 V star2 = 380 - 420 V delta/660 - 690 V star5 = 500 V star (sizes 63 - 100)

500 V delta (sizes 112 - 355)

Calculation of starting times

In all cases where fans and fan drives are presented with a specificmotor, this motor is rated for direct on-line starting. If a different motoris selected, or if star-delta star ting is employed, starting times mustbe checked by calculation.

Use the following formulae to calculate the starting time for direct on-line and star-delta starting:

Direct on-line starting

Star-delta starting

Permissible starting timesWith regard to heat build-up, starting times must not exceed thosestated in the table below.The values given in the table are for starts when the motor is in awarm condition after operation. For cold starts, the values can bedoubled.

Max. permitted starting times in seconds (individual starts)

Where starting is frequent, the motor cannot be loaded as rated. Thisis due to starting heat losses in the windings. The permissible motoroutput can be calculated using the number of starts per hour, the load'smoment of inertia and the load's rotational speed.Please contact Flkt Woods AB.

Note!A motor can be started using a star-delta starter provided that themotor is delta-connected. During starting, the motor is star-connectedand torque is consequently reduced. Check that the motor's torquecurve is higher than the fan's torque curve throughout the range up to90% of the synchronous speed.If no torque curves are available, the following formula is sufficientlyaccurate for determining the minimum motor rating.

No. of poles

Motor size Starting method 2 4

132Direct on-line starting 15 10Star-delta starting 45 30






280 Direct on-line starting 15 18Star-delta starting 45 54

315Direct on-line starting 18Star-delta starting 54

355Direct on-line starting 20Star-delta starting 60

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APAL-

132 S M2AA 132 SA 2-00550-c-0 5,5 2855 10,5 7,8 3,2 3,4 37132 S M2AA 132 SB 2-00750-c-0 7,5 2855 13,9 8,5 3,4 3,6 42160 M M2AA 160 MA 2-01100-c-0 11 2930 20,0 6,3 1,9 2,5 73

160 M M2AA 160 M 2-01500-c-0 15 2920 26,5 6,6 2,3 2,5 84160 L M2AA 160 L 2-01850-c-0 18,5 2920 32,0 7,3 2,6 2,7 94180 M M2AA 180 M 2-02200-c-0 22 2930 38,5 7,2 2,5 2,7 119

200 L M2AA 200 MLA 2-03000-c-0 30 2955 53 7,3 2,4 3,1 175200 L M2AA 200 MLB 2-03700-c-0 37 2950 64 7,3 2,5 3,2 200225 M M2AA 225 SMB 2-04500-c-0 45 2960 79 7,3 2,5 2,8 235250 M M2AA 250 SMA 2-05500-c-0 55 2970 95 7,5 2,0 3,0 285

280 S M2CA 280 SA 2-07500-c-0 75 2977 131 7,4 2,0 2,9 480280 M M2CA 280 SMA 2-09000-c-0 90 2975 152 7,2 2,1 2,7 545

APAL-132 M M2AA 132 M 4-00750-c-0 7,5 1450 14,8 7,9 2,5 3,2 48

160 M M2AA 160 M 4-01100-c-0 11 1460 22,5 6,7 2,9 2,8 75160 L M2AA 160 L 4-01500-c-0 15 1455 28,5 6,8 3,0 2,8 94180 M M2AA 180 M 4-01850-c-0 18,5 1470 35 7,0 3,1 2,7 124

180 L M2AA 180 L 4-02200-c-0 22 1470 41 7,0 2,9 2,8 141

200 L M2AA 200 MLA 4-03000-c-0 30 1475 56 6,7 2,6 2,8 180225 S M2AA 225 SMA 4-03700-c-0 37 1480 68 6,6 2,4 2,5 215225 M M2AA 225 SMB 4-04500-c-0 45 1480 83 6,7 2,7 2,6 230

250 M M2AA 250 SMA 4-05500-c-0 55 1480 98 7,5 2,3 2,8 275

280 S M2CA 280 SA 4-07500-c-0 75 1483 137 6,9 2,2 2,8 445280 M M2CA 280 SMA 4-09000-c-0 90 1484 163 7,6 2,5 2,9 490

315 S M2CA 315 SA 4-11000-c-0 110 1487 198 6,5 2,1 2,6 675315 M M2CA 315 SMA 4-13200-c-0 132 1486 238 6,3 2,2 2,7 730315 M M2CA 315 MB 4-16000-c-0 160 1486 282 7,0 2,4 2,7 850

355 S M2CA 355 SA 4-20000-c-0 200 1487 345 7,0 2,1 2,7 1220355 M M2CA 355 MA 4-25000-c-0 250 1487 430 7,2 2,3 2,8 1350

355 M M2CA 355 LA 4-31500-c-0 315 1488 545 7,4 2,4 2,8 1550

Single-speed motors, 50 Hz

Size designation At rated output

Rated Approx Is2) Ts Tmax Wgt.

ABB output Speed A at IN TN TNIEC Motors Designation kW rpm 400 V 1) kg

Storleksbeteckning Mrk- Vid mrkuteffektut-

ABB Beteck- effekt Varv- Strm 1) Is2) Ts Tmax Vikt

IEC Motors ning tal vid 400V IN TN TNkW r/min ca A kg

1) Conversion factor where the rated supply is other than 400 V, 50 Hz.

Rated voltage at 50 Hzand a motor wound for: Conversion factor

220 V 1.82230 V 1.74415 V 0.96

500 V 0.80

660 V 0.61690 V 0.58

2) Is= ratio of the motor's starting current to its current at full load.

IN

Voltage codes

1 = 220 - 240 V delta/380 - 420 V star, 50 Hz

2 = 380 - 420 V delta/660 - 680 V star, 50 Hz

5 = 500 V star (sizes 63 - 100)500 V delta (sizes 112 - 355)

Housing class IP 55

Dust-proof, spray-proof design.Sizes 132 - 355 are supplied as standard in adesign complying to IP 55.

Drain holes

Sizes 132 - 355 are supplied with closeable, plastic plugs in the drain holes.The plugs are in the open position when the motors are delivered.

Insulation classAll motors have class F insulation.

The standard rated outputs of motors from ABB Motors are, in most cases,based on the temperature increases applying to insulation class B.

This gives the motors a large overload margin.

Temperature sensor

PTC thermistor type 3 x 150 C. Standard for sizes 200 and larger.

3000 rpm = 2 poles 1500 rpm = 4 poles

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Size

per No. ofABB Motors poles A1) AB AC B1) B'1) BB C D1) DB E EA F1) GA H1) HC HD K L L12)

132 S (A, B) 2 216 262 261 140 1783) 212 89 38 M12 80 50 10 41 132 - 295.5 12 - 4473)

132 M 4 216 262 261 1403) 178 212 89 38 M12 80 50 10 41 132 - 295.5 12 - 4473)

160 4) 4) 254 310 - 210 2543) 287.5 108 42 M16 110 - 12 45 160 - 368.5 15 602,5180 5) 5) 279 340 - 241 2793) 316 121 48 M16 110 - 14 51.5 180 - 403,5 15 680

200 ML. 2,4 318 380 386 2673) 305 365 133 55 M20 110 - 16 59 200 - 496,5 18 773225 SM. 2 356 418 425 2863) 311 360 149 55 M20 110 - 16 59 225 - 542 18 835225 SM. 4 356 418 425 286 3113) 360 149 60 M20 140 - 18 64 225 - 542 18 865

250 SM. 2 406 474 471 3113) 349 409 168 60 M20 140 - 18 64 250 - 590 22 872250 SM. 4 406 474 471 3113) 349 409 168 65 M20 140 - 18 69 250 - 590 22 872

280 SA 2 457 545 - 368 - 450 190 65 M20 140 - 18 69 280 558 730 24 1060280 SA 4 457 545 - 368 - 450 190 75 M20 140 - 20 79.5 280 558 730 24 990

280 SMA 2 457 545 - 368 419 501 190 65 M20 140 - 18 69 280 558 730 24 1060280 SMA 4 457 545 - 368 419 501 190 75 M20 140 - 20 79.5 280 558 730 24 1060

315 SA 4 508 622 - 406 - 535 216 80 M20 170 - 22 85 315 627 820 28 1125

315 SMA 4 508 622 - 406 457 535 216 80 M20 170 - 22 85 315 627 820 28 1125

315 MB 4 508 622 - 457 - 540 216 80 M20 170 - 22 85 315 627 820 28 1225355 SA 4 610 714 - 500 - 584 254 100 M24 210 - 28 106 355 715 920 28 1380

355 MA 4 610 714 - 560 - 644 254 100 M24 210 - 28 106 355 715 920 28 1440

355 MB 4 610 714 - 560 - 644 254 100 M24 210 - 28 106 355 715 920 28 1440

355 LA 4 610 714 - 630 - 714 254 100 M24 210 - 28 106 355 715 920 28 1520

IEC size 132

IEC size 160-180

IEC size 200-250

IEC size 280-355

1) TolerancesA, B ISO js14 2) Single-speed motors 132S, MD = 38-48 ISO k6 3) Not IEC compliantD = 55-100 ISO m6 4) M-2, MA-2, M-4, L-2, L-4F ISO h9 5) M-2, M-4H = 132-250 +0 -0.5

H = 280-355 +0 -1.0

Shaft journal

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Centrifugal fans HDCB/HDCS - Fan theory Page 22

Definition of fan efficiency

where Pe is the actual power demand and P the theoretical asdefined by:

where q is given in m3/s and pt in Pa.

Using the fan chart

In fan charts, gas flow always refers to actual flow at the faninlet.

Gas density o is often known at a temperature To and pressurepao, different from the temperature T and pressure pa at the faninlet. The density at the fan inlet is calculated using the followingformula:

If the required flow qo has been specified at a temperature hasbeen specified at a temperature To and pressure pao that differsfrom the temperature T and pressure pa, at the inlet, the flow qat the fan inlet can be calculated using the formula:

Unless otherwise stated, the total pressure rise pt and powerdemand P given in the fan chart is for a gas density of 1.2 kg/m 3

at the fan inlet. This corresponds to the density of air at 20C,normal barometric pressure (1013 mbar, 760 mm Hg) and a

relative humidity of 50%.If gas density is other than 1.2 kg/m3, the required total press-sure rise pt can be read from the chart using the correction:

The fan speed and power demand Pe chart can then be readfrom the chart. Finally, actual power demand is obtained usingthe formula:

Fan data at other fan speedsIf fan speed is changed, but the installation is otherwise unaltered,gas flow, pressure rise and power demand are affected asfollows:

Fan efficiency is not affected.

Example: a 10% increase in fan speed increases:

gas flow by 10%pressure by 21%power demand by 33%

The adequacy of a fan's power rating must always be checkedbefore any increase in speed.

Symbols

L = throttling curve or number

n = fan speed rpm

P = theoretical power demand kW

pa = absolute pressure Pa

Pe = actual power demand kW

pd = dynamic pressure at the fan outlet Pa

pt = total pressure rise between the fan's connections Pa

q = gas flow at the fan inlet m3/s (m3/h)

T = absolute temperature K

v = gas velocity at the fan outlet m/s

= gas density kg/m3

= fan efficiency %

Principle of operation

Flow through a fan is characterised by an increase in total gas

pressure as energy is imparted to the gas as it crosses theimpeller.The velocity increase at the fan inlet translates into adefinite rise in dynamic pressure, partnered by an equal magnitudedecrease in static pressure. The increase in total pressureoccurs only at the fan impeller; in the scroll casing, the dynamicpressure is converted into static pressure.The gas flow and theoutlet area determine the dynamic pressure of the gas at theoutlet. The total pressure delivered at the fan outlet thus alwaysincludes a certain component of dynamic pressure. Because ofthe relatively large outlet areas, the dynamic pressures forHDCB/HDCS fans are relatively low.

Fan dataThe fan chart

Fan data is usually shown in the form of a chart. In this chart, thetotal pressure rise generated by the fan is plotted as a function ofthe gas flow at a number of fixed fan speeds.The correspondingpower characteristics are usually shown in the same chart.This also includes auxiliary curves (throttling curves) numberedfrom 1 to 10. These represent different system characteristics,for which the required pressure rise is proportional to the squ-are of the gas flow.Throttling curve number is derived as follows:

Curve L = 10 represents the dynamic pressure at the fan outlet.For fans that can be connected to ducting on both the inlet and

outlet sides, the fan chart shows the total pressure rise pt fromthe inlet to the outlet duct.This assumes that the cross-sectionalarea of the outlet ducts is the same as the fan's nominal outletarea and that the outlet ducts have a straight length of at least2.5 x outlet diameter.This can be expressed as:

Unless otherwise specified, the fan chart's power demand curvesare for the power supplied through the shaft to the impeller.Mechanical losses may be significant in belt-driven fans andmust be taken into account when deciding motor size. A valueof 5% can be used as a guide.

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Centrifugal fans HDCB/HDCS - Fan theory Page 23

Example of fan size selection

Select a high pressure fan for:

- gas flow 0.4 Nm/s

- total pressure rise 20000 Pa with a static negative pressure of 12000 Pa at the inlet

- gas temperature of 40C at the inlet

- density 1.293 kg/m at a temp. of 0C and barometric pressure of 1013 mbar

Solution

- density at the fan inlet: 1.293 x273

x101300-12000

= 0.99 kg/m273+40 10130

- gas flow at the fan inlet: 0.4 x1,293

= 0.52 m/s0,99

- corrected chart pressure:1.2

x 20000 ~ 24000 Pa0.99

Select HDCB-012. From the chart, fan speed and power demand Pechart are ~ 5350 rpm and 18.0 kW respectively.

Finally, actual power demand is calculated using the formula: Pe =0.99

x 18 =14.8 kW1.2

Taking belt losses (5%) into account, select motor size 18.5 kW and belt drive HDCZ-01-173-c-02.

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Flkt Woods ABSE-351 87 Vxj, SwedenPhone +46 470 71 77 00www flaktwoods se

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