52 centfans.pdf

5.2 Centrifugal Fans

Owing to continued product development Novenco reserves the right to introduce alterations without prior notice

MU 14378 0710 521

Products

HI-PRES MARINE & OFFSHORE

ContentsIntroduction. . . . . . . . . . . . . . . . . . . 522

CAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 522CNA and CNB . . . . . . . . . . . . . . . . . . . . . . . 523CND and CNF . . . . . . . . . . . . . . . . . . . . . . . 524CMP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 525

Medium-Pressure Centrifugal Fans CAL . . . . . . . . . . . . . . . . . . . . . . . . . 526

Construction. . . . . . . . . . . . . . . . . . . . . . . . . 526Materials and Surface Treatment. . . . . . . . . 526Working Ranges . . . . . . . . . . . . . . . . . . . . . 527Accessories . . . . . . . . . . . . . . . . . . . . . . . . . 528Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 529Dimensions Shaft Ends for Belt-driven Ver-sions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 543Dimensioning . . . . . . . . . . . . . . . . . . . . . . . . 544Performance Curves . . . . . . . . . . . . . . . . . . 545

Low-Pressure Centrifugal Fans CNA and CNB. . . . . . . . . . . . . . . . . . . . . . 558

Surface Treatment . . . . . . . . . . . . . . . . . . . . 558Accessories . . . . . . . . . . . . . . . . . . . . . . . . . 558Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . 559Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 560Outlet Flanges . . . . . . . . . . . . . . . . . . . . . . . 561Motor Mounting Arrangements . . . . . . . . . . 561Base frame for fan and motor . . . . . . . . . . . 562Position Designations . . . . . . . . . . . . . . . . . 562Shaft Extension . . . . . . . . . . . . . . . . . . . . . . 562Accessories . . . . . . . . . . . . . . . . . . . . . . . . . 563Performance Curves . . . . . . . . . . . . . . . . . 565

Low- and Medium-Pressure Centrifugal Fans CND and CNF. . . . . . . . . . . . . 570

Surface Treatment and Material . . . . . . . . . 570Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 570Environment. . . . . . . . . . . . . . . . . . . . . . . . . 570Accessories . . . . . . . . . . . . . . . . . . . . . . . . . 571Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 572Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . 572Outlet Flanges . . . . . . . . . . . . . . . . . . . . . . . 573Motor Sizes and Position Designations . . . . 573Position Designations for Impeller . . . . . . . . 574Motor Sizes . . . . . . . . . . . . . . . . . . . . . . . . . 574Max. RPM . . . . . . . . . . . . . . . . . . . . . . . . . . 574Motor Installation . . . . . . . . . . . . . . . . . . . . . 575Low-Mounted Bracket for Large Motors. . . . 575Shaft End . . . . . . . . . . . . . . . . . . . . . . . . . . . 575Dimensioning Curves. . . . . . . . . . . . . . . . . . 576

Accessories . . . . . . . . . . . . . . . . . . . . . . . . .580

Medium-Pressure Centrifugal Fans CMP. . . . . . . . . . . . . . . . . . . . . . . . . .583

Main Characteristics. . . . . . . . . . . . . . . . . . .583Technical Characteristics . . . . . . . . . . . . . . .583Surface Treatment and Material. . . . . . . . . .583Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . .583Environment . . . . . . . . . . . . . . . . . . . . . . . . .583Acoustic Characteristics. . . . . . . . . . . . . . . .584Accessories . . . . . . . . . . . . . . . . . . . . . . . . .584Dimensions . . . . . . . . . . . . . . . . . . . . . . . . .585Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . .585Performance Curves . . . . . . . . . . . . . . . . . .586Position Designations. . . . . . . . . . . . . . . . . .586

Sound Conditions . . . . . . . . . . . . . .587

Control of Air Volume . . . . . . . . . . .589Pole Changing . . . . . . . . . . . . . . . . . . . . . . .589Inlet Vane Control . . . . . . . . . . . . . . . . . . . .589Frequency Conversion . . . . . . . . . . . . . . . . .589




522 Introduction

Products


IntroductionThis chapter describes the centrifugal fans typeCAL, CNA, CNB, CND, CNF and CMP.

The introduction of the fans on these first fewpages is followed by detailed data on and in-depth descriptions of each fan type.The chapter finishes with descriptions of soundconditions and control of air volumes common toall the fans.

CALThe CAL fans are roboustly built compact centrif-ugal fans capable of deliverying medium pres-sures.

ApplicationIn aggressive environments and well-suited forpurposes with high physical loads and long liferequirements.

RangesThe CAL standard range comprises 24 sizes in thebelt-driven version (impeller diameters from 315to 1250 mm) and 19 sizes in the directly coupledversion (impeller diameters from 630 to1250 mm). Directly coupled versions are madewith or without drive-side removable (DSR) im-pellers.Air volumes are from 0.3 to 21 m3/s and totalpressures up to 8500 Pa.The temperature range runs from 0 - 70 C.

ConstructionThe housing, impeller and bearing bracket arewelded.The fan is available in belt-driven or directly cou-pled versions.The fan shaft is supported in two-part steel bear-ing housings with spherical roller/ball bearings.

Materials and Surface TreatmentHousingHeavy sheet steel, steel 37-2 or stainless sheet AISI316LImpellerCorten, DOMEX 500 or SAF-2205 steel qualities,or AISI 316L at reduced RPMsBearing bracketGalvanised heavy steel sectionsGuide vane arrangementAISI 316LSurface treatmentHot-dip galvanised

Corrosion ClassificationThe galvanised version meets the requirementsfor operation in medium-level corrosive environ-ments in accordance with DS/EN ISO 12944-2,corrosion category C3.The stainless steel version meets the requirementsfor aggressive corrosive environments categoryC5. As standard only parts in the airflow aremade of stainless steel. If required all parts can bemade of stainless steel.

Technical SpecificationTechnical capacities are in accordance with BS848:1980 and ISO 5801 1997, installation type D.

Accessories Flexible connections for inlet and outlet Mating flange for the outlet Anti-vibration mountings Access door on the casing of the fan housing



Introduction 523

Products


CNA and CNBThese are single inlet low pressure fans with back-ward curved blades.

ApplicationIn marine ventilating systems for clean and non-corrosive air, max. 70 C, and with requirementsfor a low sound level.

RangesThe CNA is avaiable in 9 sizes with impeller di-ameters from 250 to 1000 mm.Air volumes from 0.2 to 14 m3/s and pressures upto 1000 Pa.

The CNB is available in 7 sizes with impeller di-ameters from 400 to 1000 mm.Air volumes are from 0.8 to 18 m3/s and pressuresup to 1500 Pa.

ConstructionFan casing with rectangular side plates for univer-sal mounting.The fan is available in direct connected or beltdriven design.

Materials and Surface TreatmentCasing, CNA/B Sendzimir-galvanised (hot-dip galvanised) steelsheet, unpainted.Impeller, CNA 250 to -630 Spot welded, galvanised steel sheet.Impeller, CNA 710 to -1000 Welded Cor-ten steel sheet, hot-dip galvanised.Impeller, CNB Welded Cor-ten steel sheet, hot-dip galvanised.Inlet Cone CNA/CNB CNA/B -250 to -630: Hot-dip galvanised deepdrawn sheet, unpainted.CNA/B -710 to -1000: Cast aluminium, un-painted.

Corrosion ClassificationFulfils the following international standard foroperation in unheated, low-corrosive environ-ments:

DS/EN ISO 12944-2 corrosivity category C2

Technical SpecificationThe capacities comply with the requirements ac-cording to BS 848, Part 1, arrangement D.

AccessoriesFor installation and service are listed in the fol-lowing pages.

Control

Inlet vane control Continuously variable speed control (CNA-

250 and 315 single phase direct coupled motor) Three stage controller (CNA-250 and 315 sin-

gle phase direct coupled motor) Three phase multi speed motor for 2 speeds Frequency converter, three phase motors

Protection

Wire guard (inlet and outlet) Drain connection Spark proof inlet cone



524 Introduction

Products


CND and CNFThese are low- and medium pressure fans withbackward curved blades.

ApplicationThey are suitable for installation in aggressive en-vironments, as they, for example, can withstandthe effects of seawater.

RangesThe CND is available in 7 sizes with impeller di-ameters from 315 mm to 710 mm.Air volumes are from 0.2 to 10 m3/s and pres-sures up to approx. 2000 Pa.

The CNF is available in 6 sizes with impeller di-ameters from 400 to 710 mm.Air volumes are from 0.2 to 11 m3/s and pres-sures up to approx. 4000 Pa.

ConstructionThe fan housing is constructed from two rectan-gular side panels and an all-welded casing.The fan is available in direct coupled or beltdriven design.

Surface Treatment and MaterialAll parts of the fans are treated with a 60 m hot-dip galvanisation for protection.Alternatively, by special agreement and at addi-tional cost, the fans can also be made of stainlesssteel AISI 316L.

Corrosion ClassificationThe fans are designed for operation in corrosioncategory C5-I (very high), as formulated in DS/EN ISO 12944-2.Versions are also available for medium-level cor-rosive environments in accordance with DS/ENISO 12944-2, corrosion category C3.

AccessoriesThe following accessories are used during instal-lation and service.

Control

Duct boss - inlet Flexible connections Mating flange Inspection hatch

Protection

Drain plug Wire guards Anti-vibration mountings Spark proof inlet funnel



Introduction 525

Products


CMPThese are medium pressure fans with multi-bladeimpellers.

ApplicationThe design is intended to withstand installation inaggressive enviroments such as on-board ships.

RangesThe CMP fans are available in 5 sizes with impel-ler diameters from 140 to 247 mm.Airflow rates are from 0.13 to 0.54 m3/s and pres-sures up to approx. 1400 Pa.

ConstructionThe fan housing is constructed from sheet steeland receive a corrosion-proof finish in polyesterresin.The motors are direct coupled to impeller.

Surface Treatment and MaterialAll parts of the fans are made of sheet steel. Theimpeller blades are of galvanised sheet steel.Stainless steel is available as an option.The finish is a corrosion-proof polyester resin.

AccessoriesThe following accessories are used during instal-lation and service.

Control

Duct boss inlets and outlets Mating flange outlets

Protection

Wire guards



526 Medium-Pressure Centrifugal Fans CAL

Products


Medium-Pressure Centrifugal Fans CALCentrifugal fans type CAL are roboust compactmedium pressure fans designed for use in aggres-sive environments. They are well suited to pur-poses with high physical loads and long life re-quirements.

The CAL is available in 24 sizes in belt-driven ver-sions (impeller diameters from 315 to 1250 mm)and in 19 sizes in directly coupled versions (im-peller diameters from 630 to 1250 mm). Directlycoupled versions are made with or without drive-side removable (DSR) impellers for easier serviceand maintenance. More details on DSR versionsare available on request.Air volumes run from 0.3 to 21 m3/s and pressureoutputs up to 8500 Pa.The temperature range runs from 0 - 70 C.

ConstructionThe fan consists of a robustly welded housingwith angle stiffeners, an impeller, a combined mo-tor and bearing bracket and a support bracket onthe inlet side. The stiffeners and brackets are allmade of strong steel sections.

The base of the brackets forms the base frame ofthe fan.

In the belt-driven version, the shaft has sphericalroller or ball bearings in steel bearing housings.In the directly coupled fan, the impeller ismounted directly on the motor shaft.

Directly coupled versions with drive-side remov-able impellers are somewhat different in construc-tion and dimensions compared to those with non-removable impellers. Exact specifications areavailable on request.

The shaft bushing in the fan housing is either asimple gap seal (approximately 1 mm gap be-tween shaft and housing) or a double lip seal thatprevents aggressive gases and condensate fromleaking out.

The impeller has backward-curved blades.

The fan housing is fitted with the following.

A duct boss and conical inlet funnel on the in-let side

A flange on the outlet side A discharge boss at the lowest point of the fan

housing in those installation positions where itis necessary.

Materials and Surface TreatmentThe fan housing and bearing bracket are made ofgalvanised heavy sheet steel.

The impeller is made of Corten A and DOMEX500 steel qualities.The surface is hot-dip galvanised and meets inter-national requirements for operation in medium-level corrosive environments in accordance withthe standard DS/EN ISO 12944, part 2, corrosioncategory C3.

Centrifugal Fan Type CAL



Medium-Pressure Centrifugal Fans CAL 527

Products


Alternatively, the fan housing can also be made ina stainless version in AISI 316L. This meets the re-quirements for aggressive environments categoryC5. Only parts in the airflow are made of stainlesssteel. If required all parts can be made of stainlesssteel.

The impeller is available in two stainless versions,either SAF 2205 or AISI 316L for limited RPMs.See dimensioning curves on pages 544 to 557.

Working RangesThe below curves show the working ranges of theCAL fans. The curves show where the efficiency isgreater than 75% with an indication of the peak ef-ficiency of 82%.

82% -

100082%

-

90082%

-

80082%

- 710

82%

-

630

82%

-

500

82%

-

400

82%

-

315

82% -

1120 82% - 1250

0 5 10 150

1000

2000

3000

4000

5000

6000

1000900

800

CAL 100%

710630

500400

315

20

1120 1250

0 5 10 150

1000

2000

3000

4000

5000

6000

1000

900

800 CAL 85%82%

-

800

82%

-

900

82%

-

1000

82% -

1120

20

1120

1250

82%

-

1250

0 5 10 150

1000

2000

3000

4000

5000

6000

7000

8000

9000

1000

900800

710

630

500

400

CAL 70%

82%

-

1000

82%

- 900

82%

-

800

82%

-

710

82%

-

630

82%

-

500

82%

-

4 00

82%

-

1120

82%

-

12501120

1250

20

Tota

l pre

ssur

e [Pa

]To

tal p

ress

ure [

Pa]

Tota

l pre

ssur

e [Pa

]

Air volume [m3/s]

Air volume [m3/s]

Air volume [m3/s]




Products


Accessories

Flexible ConnectionsFlexible connections of flameproof material formax. 80 C and flexible connections of incombus-tible material for max. 250 C are available for theinlet and outlet.

Mating FlangesThe mating flange for the outlet is made of flats.See dimensions on pages 529 - 543.

Anti-Vibration MountingsThe sizes and types of anti-vibration mountingsare best calculated by Novenco, as different typesmay be required due to load variations at the fourinstallation points of the fan.The fans are supplied with installation instruc-tions that indicate the positions of the anti-vibra-tion mountings.

The following applies to CAL/R with motor sizeslarger than 225. The anti-vibration mountings onthe motor bracket side are factory-fitted. These areprotected against transport damages by protec-tion devices that must be removed before the fancan be put into operation. Refer to the installation

instructions for further details. The anti-vibrationmountings for the suction side of the fans are sup-plied unfitted.

Inspection Hatch Position on CasingThe inspection hatch on the casing of the fanhousing is positioned differently depending onfan size.It is secured with either one or two nuts and has arubber seal.

The inspection hatch can be positioned in one ofthree positions according to Eurovent. The belowfigure shows the possible positions seen from theshaft end.Standard Flexible Connections

Inlet

Outlet

Size of Inspection Hatch

Possible Positions of Inspection Hatch

CAL 315 - 500B B

CAL 630 - 1250

56 56

200

100 200

300

Inlet

side

Mot

or si

de

45

45 45

45

45

45 45

45

135135

135

135

135

135

135

135

225

225

225225

225

225

225225

RD0 RD90 RD180 RD270

LG0 LG90 LG180LG270




Products


DimensionsCAL 100% Direct Motor Size 160-280

CAL A B Bu C1 D EE1

F F1160-180 200-225 250-280-630 630 441 449 107 500 584 1019 1199 - 737 470-710 710 497 505 121 560 648 1075 1255 - 831 528-800 800 560 570 136 630 720 1320 1320 - 936 600-900 900 630 640 153 710 800 1390 1390 1560 1053 670-1000 1000 700 710 170 800 880 14604) 1460 1630 1170 754

CAL G G1

H JL

Weight 3)kgPos. 0 Pos. 90 Pos. 180 Pos. 270 160-180 200-225 250-280

-630 591 429 630 500 450 800 450 630 - 64 274-710 667 483 710 560 500 900 450 630 - 64 333-800 752 544 800 630 560 1000 630 630 - 66 461-900 845 612 900 710 630 1120 630 630 800 66 578-1000 940 680 1000 800 710 1250 6304) 630 800 66 680

Duct boss

Drain plug 1 RGDimensions in mm

1) Depends on fan position. H is increased by 30 - 64 mm depending on anti-vibration mountings.

2) Depends on motor size. See dimension table.3) Weight is excl. motor.4) The CAL-1000 is unavailable with motor size 160.

Outlet Flangen x 100 rr

u x 15

B

SY

A T X

p x 1

00q

q

NB On the mating flange;A and B dimensions are table value +5 mm /X and Y dimensions are table value -5 mm /r and q dimensions are table value -2.5 mm.

CAL q p r n T X S Y u-630 65 6 70.5 4 680 730 491 541 24-710 55 7 98.5 4 760 810 547 597 26-800 50 8 80.0 5 850 900 610 660 30-900 50 9 115.0 5 950 1000 680 730 32-1000 50 10 100.0 6 1050 1100 750 800 36




Products


CAL 100% Direct Motor Size 250-280

CAL A B Bu C1 D E E1 F F1-1120 1120 784 796 190 900 996 1796 1310 845-1250 1250 875 887 213 1000 1100 1887 1463 942

CAL G G1H J

LWeight 2)

kgPos. 0 Pos. 90 Pos. 180 Pos. 270 250-280-1120 1048 762 1120 900 800 1400 850 69 1047-1250 1169 850 1250 1000 900 1600 8503) 69 1188

Duct boss



2) Weight is excl. motor.3) The CAL-1250 is unavailable with motor size 250.

Outlet Flange

n x 100 rr

u x 15

B

SY

A T X

p x 1

00q

q


CAL q p r n T X S Y u-1120 70 11 102 7 1180 1240 844 904 40-1250 85 12 97.5 8 1310 1370 935 995 44




Products


CAL 100% Belt-driven Motor Size 112-225

CAL A B Bu C1 D EE1

F F1112-132 160-180 200-225-315 315 221 227 54 250 332 797 - - 369 236-400 400 280 286 68 315 400 856 1036 - 468 299-500 500 350 356 85 400 480 926 1106 - 585 373-630 630 441 449 107 500 584 - 1199 1369 737 470-710 710 497 505 121 560 648 - 1255 1425 831 528-800 800 560 570 136 630 720 - 1320 1490 936 600-900 900 630 640 153 710 800 - 1390 1560 1053 670-1000 1000 700 710 170 800 880 - 1460 1630 1170 754

CAL G G1

H JK L

Weight 3) kgPos. 0 Pos. 90 Pos. 180 Pos. 270 112-132 160-180 200-225

-315 297 215 315 250 224 450 450 - - 155 62 95-400 377 272 400 315 280 560 450 630 - 155 62 158-500 470 340 500 400 355 710 450 630 - 155 62 212-630 591 429 630 500 450 800 - 630 800 180 64 395-710 667 483 710 560 500 900 - 630 800 180 64 460-800 752 544 800 630 560 1000 - 630 800 180 66 587-900 845 612 900 710 630 1120 - 630 800 180 66 707-1000 940 680 1000 800 710 1250 - 630 800 180 66 824


Duct boss


2) Depends on motor size. See dimension table.3) Weight is excl. motor and belt drive.

Outlet Flange

n x 100 rr

u x 15

B

SY

A T X

p x 1

00q

q


CAL q p r n T X S Y u-315 57.5 3 110.5 1 365 415 271 321 12-400 50.0 4 90.0 2 450 500 330 380 16-500 50.0 5 75.0 3 550 600 400 450 20-630 65.0 6 70.5 4 680 730 491 541 24-710 55.0 7 98.5 4 760 810 547 597 26-800 50.0 8 80.0 5 850 900 610 660 30-900 50.0 9 115.0 5 950 1000 680 730 32-1000 50.0 10 100.0 6 1050 1100 750 800 36




Products



CAL A B Bu C1 D E E1 F F1 G G1-1120 1120 784 796 190 900 996 1871 1310 845 1048 762-1250 1250 875 887 213 1000 1100 1962 1463 942 1169 850

CAL H

J J1 K L M M1Weight 2)

kgPos. 0 Pos. 90 Pos. 180 Pos. 270-1120 1120 900 800 1400 925 600 152 69 1870 1320 1450-1250 1250 1000 900 1600 925 600 152 69 1870 1320 1650


Duct boss


2) Weight is excl. motor and belt drive.

Outlet Flange

n x 100 rr

u x 15

B

SY

A T X

p x 1

00q

q


CAL q p r n T X S Y u-1120 70 11 102.0 7 1180 1240 844 904 40-1250 85 12 97.5 8 1310 1370 935 995 44

Position of MotorThe position of the motor is in accordance withEurovent.

W Z




Products



CAL A B Bu C1 D EE1

F F1160-225 250-280-800 800 476 486 136 630 720 1236 1406 936 600-900 900 536 546 153 710 800 1296 1466 1053 670-1000 1000 595 605 170 800 880 1355 1525 1170 754

CAL G G1H J

LWeight 3)

kgPos. 0 Pos. 90 Pos. 180 Pos. 270 160-225 250-280-800 752 544 800 630 560 1000 630 800 114 453-900 845 612 900 710 630 1120 630 800 120 559-1000 940 680 1000 800 710 1250 6304) 800 126 656


Duct boss




u x 15

B

SY

A T X

p x 1

00q

q


CAL q p r n T X S Y u-800 50 8 88 4 850 900 526 576 28-900 50 9 118 4 950 1000 586 636 30-1000 50 10 97.5 5 1050 1100 645 695 34


W Z




Products



CAL A B Bu C1 D E E1 F F1-1120 1120 667 679 190 900 996 1679 1310 845-1250 1250 744 756 213 1000 1100 1756 1463 942

CAL G G1H J

LWeight 2)

kgPos. 0 Pos. 90 Pos. 180 Pos. 270 250-280-1120 1048 762 1120 900 800 1400 850 136 1021-1250 1169 850 1250 1000 900 1600 8503) 144 1154


Duct boss




u x 15

B

SY

A T X

p x 1

00q

q


CAL q p r n T X S Y u-1120 70 11 93.5 6 1180 1240 727 787 38-1250 85 12 82.0 7 1310 1370 804 864 42


W Z




Products



CAL A B Bu C1 D EE1

F F1160-180 200-225-800 800 476 486 136 630 720 1236 1406 936 600-900 900 536 546 153 710 800 1296 1466 1053 670-1000 1000 595 605 170 800 880 1355 1525 1170 754

CAL G G1H J

K LWeight 3)

kgPos. 0 Pos. 90 Pos. 180 Pos. 270 160-180 200-225-800 752 544 800 630 560 1000 630 800 180 114 573-900 845 612 900 710 630 1120 630 800 180 120 688-1000 940 680 1000 800 710 1250 630 800 180 126 798


Duct boss



Outlet Flange

n x 100 rr

u x 15

B

SY

A T X

p x 1

00q

q


CAL q p r n T X S Y u-800 50 8 88 4 850 900 526 576 28-900 50 9 118 4 950 1000 586 636 30-1000 50 10 97.5 5 1050 1100 645 695 34


W Z




Products



CAL A B Bu C1 D E E1 F F1-800 800 476 486 136 630 720 1586 936 600-900 900 536 546 153 710 800 1646 1053 670-1000 1000 595 605 170 800 880 1705 1170 754

CAL G G1H

L Weight 2)Pos. 0 Pos. 90 Pos. 180 Pos. 270-800 752 544 800 630 560 1000 114 837-900 845 612 900 710 630 1120 120 947-1000 940 680 1000 800 710 1250 126 1052

25 25

1200

1640

440

5050 BL

D

25

120

E1

980Bu

700100 100

195

17 17

E

G 1G

50

F

A

F1

C1

H1)

6 x 15

53


Duct boss



Outlet Flange

n x 100 rr

u x 15

B

SY

A T X

p x 1

00q

q


CAL q p r n T X S Y u-800 50 8 88 4 850 900 526 576 28-900 50 9 118 4 950 1000 586 636 30-1000 50 10 97.5 5 1050 1100 645 695 34


W Z




Products



CAL A B Bu C1 D EE1

F F1 G G1225-250 280-315-1120 1120 667 679 190 900 996 1754 2054 1310 845 1048 762-1250 1250 744 756 213 1000 1100 1831 2131 1463 942 1169 850

CAL H J J1 K

Pos. 0 Pos. 90 Pos. 180 Pos. 270 225-250 280-315 225-250 280-315 225-250 280-315-1120 1120 900 800 1400 925 1225 600 875 152 207-1250 1250 1000 900 1600 925 1225 600 875 152 207

CAL LM M1 Weight 2) kg

225-250 280-315 225-250 280-315 225-250 280-315-1120 136 1870 2050 1320 1500 1425 1655-1250 144 1870 2050 1320 1500 1620 1865


Duct boss




u x 15

B

SY

A T X

p x 1

00q

q


CAL q p r n T X S Y u-1120 70 11 93.5 6 1180 1240 727 787 38-1250 85 12 82.0 7 1310 1370 804 864 42


W Z




Products



CAL A B Bu C1 D EE1

F F1160-180 200-225 250-280-630 630 309 317 107 500 584 887 1067 - 737 470-710 710 348 356 121 560 648 926 1106 - 831 528-800 800 392 402 136 630 720 1152 1152 1322 936 600-900 900 441 451 153 710 800 1201 1201 1371 1053 670-1000 1000 490 500 170 800 880 1250 1250 1420 1170 754

CAL G G1H J

LWeight 3)

kgPos. 0 Pos. 90 Pos. 180 Pos. 270 160-180 200-225 250-280-630 591 429 630 500 450 800 450 630 - 140 257-710 667 483 710 560 500 900 450 630 - 149 313-800 752 544 800 630 560 1000 630 630 800 162 436-900 845 612 900 710 630 1120 630 630 800 174 536-1000 940 680 1000 800 710 1250 6304) 630 800 186 629


Duct boss




u x 15

B

SY

A T X

p x 1

00q

q


CAL q p r n T X S Y u-630 65 6 104.5 2 680 730 359 409 20-710 55 7 124.0 2 760 810 398 448 22-800 50 8 96.0 3 850 900 442 492 26-900 50 9 120.5 3 950 1000 491 541 28-1000 50 10 95.0 4 1050 1100 540 590 32




Products



CAL A B Bu C1 D E E1 F F1-1120 1120 549 561 190 900 996 1561 1310 845-1250 1250 613 625 213 1000 1100 1625 1463 942

CAL G G1H J

LWeight 2)

kgPos. 0 Pos. 90 Pos. 180 Pos. 270 250-315-1120 1048 762 1120 900 800 1400 850 203 988-1250 1169 850 1250 1000 900 1600 8503) 219 1114


Duct boss




u x 15

B

SY

A T X

p x 1

00q

q


CAL q p r n T X S Y u-1120 70 11 84,5 5 1180 1240 609 669 36-1250 85 12 116.5 5 1310 1370 673 733 38




Products



CAL A B Bu C1 D EE1

F F1112-132 160-180 200-225-400 400 196 202 68 315 400 772 952 - 468 299-500 500 245 251 85 400 480 821 1001 - 585 373-630 630 309 317 107 500 584 - 1067 1237 737 470-710 710 348 356 121 560 648 - 1106 1276 831 528-800 800 392 402 136 630 720 - 1152 1322 936 600-900 900 441 451 153 710 800 - 1201 1371 1053 670-1000 1000 490 500 170 800 880 - 1250 1420 1170 754

CAL G G1H J

K LWeight

3) kgPos. 0 Pos. 90 Pos. 180 Pos. 270 112-132 160-180 200-225-400 377 272 400 315 280 560 450 630 - 155 110 154-500 470 340 500 400 355 710 450 630 - 155 122 198-630 591 429 630 500 450 800 - 630 800 180 140 376-710 667 483 710 560 500 900 - 630 800 180 149 440-800 752 544 800 630 560 1000 - 630 800 180 162 557-900 845 612 900 710 630 1120 - 630 800 180 174 668-1000 940 680 1000 800 710 1250 - 630 800 180 186 774


Duct boss




u x 15

B

SY

A T X

p x 1

00q

q


CAL q p r n T X S Y u-400 50 4 98.0 1 450 500 246 296 14-500 50 5 72.5 2 550 600 295 345 18-630 65 6 104.5 2 680 730 359 409 20-710 55 7 124.0 2 760 810 398 448 22-800 50 8 96.0 3 850 900 442 492 26-900 50 9 120.5 3 950 1000 491 541 28-1000 50 10 95.0 4 1050 1100 540 590 32




Products



CAL A B Bu C1 D E E1 F F1-800 800 392 402 136 630 720 1502 936 600-900 900 441 451 153 710 800 1551 1053 670-1000 1000 490 500 170 800 880 1600 1170 754

CAL G G1H

LWeight 2)

kgPos. 0 Pos. 90 Pos. 180 Pos. 270-800 752 544 800 630 560 1000 162 820-900 845 612 900 710 630 1120 174 925-1000 940 680 1000 800 710 1250 186 1025

25 25

1200

1640

440

5050 BL

D

25

120

E1

980Bu

700100 100

195

17 17

E

G 1G

50

F

A

F1

C1

H1)

6 x 15

53


Duct boss



Outlet Flange

n x 100 rr

u x 15

B

SY

A T X

p x 1

00q

q


CAL q p r n T X S Y u-800 50 8 96.0 3 850 900 442 492 26-900 50 9 120.5 3 950 1000 491 541 28-1000 50 10 95.0 4 1050 1100 540 590 32


W Z




Products



CAL A B Bu C1 D EE1

F F1 G G1225-250 280-315-1120 1120 549 561 190 900 996 1636 1936 1310 845 1048 762-1250 1250 613 625 213 1000 1100 1700 2000 1463 942 1169 850

CAL H J J1 K

Pos. 0 Pos. 90 Pos. 180 Pos. 270 225-250 280-315 225-250 280-315 225-250 280-315-1120 1120 900 800 1400 925 1225 600 875 152 207-1250 1250 1000 900 1600 925 1225 600 875 152 207

CAL LM M1 Weight 2) kg

225-250 280-315 225-250 280-315 225-250 280-315-1120 203 1870 2050 1320 1500 1390 1620-1250 219 1870 2050 1320 1500 1580 1825


Duct boss




u x 15

B

SY

A T X

p x 1

00q

q


CAL q p r n T X S Y u-1120 70 11 84.5 5 1180 1240 609 669 36-1250 85 12 116.5 5 1310 1370 673 733 38


W Z




Products


Dimensions Shaft Ends for Belt-driven Versions

b

d

t

l

Motor Sizes 200 and 225




CAL d (h6) l b t630 - 1000 70 140 20 74,5

CAL d (h6) l b t1120 & 1250 80 110 22 85

CAL d (h6) l b t800 - 1000 80 140 22 85

CAL d (h6) l b t1120 & 1250 90 140 25 95



CAL d (h6) l b t315 - 500 40 80 12 43

CAL d (h6) l b t400 & 500 50 110 14 53,5630 - 1000 60 110 18 64




Products


DimensioningThe basis for dimensioning is the airflow rate andthe pressure loss in the ventilation system. This iscalled the static pressure of the fan and has theformula ps = ps2 - ps1.

To establish the total pressure of the fan, pt, addthe air speed pressure, the dynamic pressure pd atthe outlet and the installation loss at the inlet p1and outlet p2.

These values are stated in connection with theperformance curves on pages 545 to 557.All curves are plotted for arrangement D.

Arrangements

Example Choice of MotorThe power consumption in the dimensioningcurves refers to the fan shaft. To cover the loss inthe belt drive and bearing parts, etc., the powerconsumption reading is increased by the factor C1.C1 depends on the fan size.

For arrangement B applies the following.(free inlet, duct for outlet)Airflow rate qv = 0.9 m3/sPressure loss = static pressure = ps = ps2 - ps1 =2000 PaThe graph on page 545 reveals that type CAL-315is best suited.

The total pressure is calculated as follows.

A ps2 - ps1 = Pa

+ p1 = Pa

+ pd + p2 = Pa

Total pressure = Pa

p2

p1

B ps2 - ps1 = Pa

+ p1 = Pa

+ pd = Pa

Total pressure = Pa

p2p1

C ps2 - ps1 = Pa

+ pd + p2 = Pa

Total pressure = Pa

p2

p1

D ps2 - ps1 = Pa

+ pd = Pa

Total pressure = Pap2p1

315-630 : C1 = 1.2

710-1000 : C1 = 1.1

1120-1250 : C1 = 1.05

ps2 - ps1 = 2000 Pa

+ p1 = 10 Pa

+ pd = 102 Pa

Total pressure = 2112 Pa

= 1.20 kg/m3

Fan speed: 3822 RPMEfficiency: 81%Power demand: 2.3 kW

Correction:2.3 x 1.2 = 2.76 kWMotor: 3 kW




Products


Performance Curves

Dimensioning Curves 100%

qv = volume flown = speed, r.p.m. = efficiency, %kW = power required, impellerdB = sound power level, outlet

Basis for charts(Arr. D)

Symbols:pt = total pressurepd = dynamic pressure, outletp1 = connection loss, inletp2 = connection loss, outletv = air velocity, outlet

= 1.20 kg/m3CAL315/100Moment of inertia,Iv = 0.11 kgm2

Circumferential speed,u = 0.016 x n, m/s

Impeller of DOMEX 500 or SAF-2205Max. 4940 RPM

Impeller of AISI 316LMax. 3826 RPMAt 45 C max. 3640 RPMAt 70 C max. 3503 RPM



Impeller of DOMEX 500 or SAF-2205Max. 3950 RPM





Products


Dimensioning Curves 100% = 1.20 kg/m3CAL500/100

Moment of inertia,Iv = 1.17 kgm2


Impeller of SAF-2205Max. 3190 RPM




Impeller of SAF-2205Max. 2920 RPMAt 45 C max. 2715 RPMAt 70 C max. 2601 RPM





Products














Products


Dimensioning Curves 85%











Products









Products



Polar mass moment of inertia,Iv = 0.34 kgm2




= 1.20 kg/m3CAL500/70Polar mass moment of inertia,Iv = 1.05 kgm2







Products





Max 3200 RPM with beltdrive version



For fans used in the shaded areas, itis necessary to consider whether therequired power can be achieved withthe maximum motor size.








Products





Max 2600 RPM with beltdrive version











Products













558 Low-Pressure Centrifugal Fans CNA and CNB

Products


Low-Pressure Centrifugal Fans CNA and CNBCentrifugal fans types CNA and CNB are light-weight, compact low pressure fans designed foruniversal installation in marine systems.Type CNA is available in nine sizes with impellerdiameters from 250 mm to 1000 mm, air volumesfrom 0.2 m3/s to 14 m3/s and total pressure up toapprox. 1000 Pa.Type CNB is available in seven sizes with impel-ler diameters from 400 to 1000 mm and is de-signed for higher speeds with air volumes from0.8 m3/s up to 18 m3/s and a total pressure up to1500 Pa.Both CNA and CNB comprise the following maincomponents:

Fan CasingFan casing made up of two rectangular side platesand a scroll plate.

Inlet ConeInlet cone fitted in the front side plate of the fanwith boss for duct connection. The inlet cone isspecially designed to guide the air to the impellerwithout loss in pressure.

ImpellerThe impeller is with broad, backward curvedblades.

Bearing AssemblyBearing assembly with two dust and waterproof,totally enclosed deep groove ball bearings in aflange bearing casing, mounted on the rear sideplate of the fan or two flange bearings mounted intwo covers.

Bearing assembly on CNB-500 to - 1000 must begreased, the others are greased for life (please seemaintenance instructions).

Surface TreatmentAll fan parts are protected against ordinary at-mospheric corrosion.

AccessoriesMotorThe motor is according to specification.

Motor MountingFor mounting of motors not exceeding the sizesstated on page 561 for the flanges of the fan cas-ing. The mounting plate is adjustable for tension-ing of the belts.

Base FrameCommon base frame for mounting of motorslarger than the sizes stated on page 561 beside thefan.

Centrifugal Fan Type CNA/B



Low-Pressure Centrifugal Fans CNA and CNB 559

Products


The sizes 250, 315 and 400 are also availablewith direct coupled flanged motor mounted onthe rear side plate of the fan.The sizes 500 and 630 are also available with di-rect coupled footmounted motor mounted onpedestal.

Belt DriveBelt drive consisting of pulleys, v-belts, and beltguard.

Flexible ConnectionsFlexible connections for inlet boss and outletflange.

Counter FlangeCounter flange for fan outlet.

Wire GuardWire guard for inlet opening.

Anti-vibration mountingsThe anti-vibration mountings are of type LYDO.

Inlet Vane ControlInlet vane control for control of fan capacity.An inlet flange is required for the mounting of theinlet vane control on sizes -710 to -1000.

Inlet FlangeInlet flange for mounting on fan inlet boss. Alsoused for attachment of flexible connection to theinlet vane control.

Inspection DoorInspection door in fan casing scroll plate.

Drain ConnectionPlease see page 563.

Spark proof Inlet ConeSpark proof inlet cone for fans in mechanical ven-tilation systems of hazardous spaces.

PositionsDirection of rotation RD or LG.Motor positions 1, 2, 3 and 4 refer to the locationof the motor in relation to the outlet opening.




Products


Dimensions

Direct coupled CNA-250, -315, -400 CNA-500, -600CNB-400 CNB-500, -630

With belt driveAll sizes

*Weight excl. of motor and belt drive

Dimensions in mmCNA

A B C D E F F1 G G1CNB-250 250 175 30 250 235 310 250 245 200-315 315 220 30 315 280 410 280 345 250-400 400 280 30 400 340 485 315 400 300-500 500 350 35 500 420 600 400 500 350-630 630 440 35 630 510 758 488 623 440-710 710 497 40 710 577 870 535 670 465-800 800 560 40 800 640 976 604 754 516-900 900 630 45 900 720 1098 680 847 573-1000 1000 700 45 1000 790 1215 750 940 640

Dimensions in mm Weight*, kgCNA

H H1 J L M N CNA CNBCNB-250 560 445 150 207 60 12 22 --315 690 595 160 252 100 12 35 --400 800 700 145 312 100 12 53 55-500 1000 850 170 392 125 15 89 98-630 1246 1063 250 482 125 15 146 161-710 1405 1135 260 537 63 15 238 262-800 1580 1270 280 600 85 15 304 334-900 1778 1420 300 680 110 15 350 385-1000 1965 1580 360 750 90 15 487 535




Products


Outlet Flanges

Counter FlangesCounter flanges (4 strips) with bolt holes as in theoutlet flanges are available as optional extras.

DuctsDucts are made with the same inside dimensionsas the fan outlet opening (A x B).

Motor Mounting ArrangementsThe tables shows the maximum motor sizes thatcan be mounted direct on the fans

Dimensions in mmCNA

P R S TCNB-250 207 85 282 110-315 252 110 347 143-400 312 140 432 185-500 386 125 536 155-630 476 170 666 200-710 537 150 750 170-800 600 170 840 175-900 680 195 950 200-1000 750 160 1050 180

Fan sizeMotor size

for direct coupledMax. motor on side

vertical mounting plateMax. motor on top

horizontal mounting plateType Weight Type Weight

250 71 90 90 20 90 20315 71 100 112 40 112 40400 80 100 112 40 112 40500 112 132 132 70 132 70630 160 1 132 70 132 70710 - 132 70 160 140800 - 132 70 160 40900 - 132 70 180 2 190

1000 - 132 70 180 190

1. CNA max. 1322. CNA max. 160




Products


Base frame for fan and motorMotors of larger sizes should be mounted on sliderails beside the fan.A common base frame supporting both fan andmotor as illustrated in the sketches can be sup-plied. Please specify required motor position (pos.W or Z, please see below).

Position DesignationsPosition according to EUROVENT

NoteFan positions for base frame mounting must be inaccordance with EUROVENT

Shaft Extension

b

d

t

l

CNA CNBFan size d l b t d l b t

250 24j6 50 8 27 - - - -315 24j6 50 8 27 - - - -400 24j6 50 8 27 28j6 50 8 1500 28j6 50 8 31 38k6 90 10 41630 32k6 60 10 35 48k6 90 14 51710 35h8 100 10 38 55m6 100 16 59800 40h8 100 12 43 55m6 100 16 59900 40h8 100 12 43 60m6 115 18 641000 55h8 100 16 59 60m6 115 18 64




Products


AccessoriesFlexible Connection, Outlet

Drain Connection Inspection Door

Duct Connection

Flexible Connection, Inlet

Types CNA and CNB are available with inspec-tion door in scroll plate of casing and drain con-nection.When ordering please state location of inspectiondoor and drain connection in ralation to the outletdirection, e.g.Inspection door pos. RD 120Drain connection pos. RD 180

CNAA B D E FCNB

250 310 280 250 4 10315 385 355 315 8 10400 480 450 400 8 12500 590 560 500 12 12630 720 690 630 12 12710 790 765 710 10 14800 880 850 800 10 14900 1000 970 900 16 141000 1080 1050 1000 16 14




Products


Conical Inlet Vane Control for Size 250 - 630 The inlet vane control is mounted direct on the in-let boss of the fan.Use an inlet flange for attachment of flexible con-nection.The performance curves beginning on page 565apply to fans without inlet vane control.NOTE: Do not forget control.

QBA Inlet Vane Control for Size 710 - 1000 The inlet vane control is mounted on the fan bymeans of an inlet flange.Use an inlet flange for attachment of flexible con-nection.The performance curves beginning on page 565apply to the fans without inlet vane control.

CNAA B D1 D2 L P R X

WeightCNB kg

250 377 355 315 250 150 8 10 70 10315 482 450 400 315 190 8 12 87 12400 592 560 500 400 215 12 12 111 16500 722 690 630 500 284 12 12 138 25630 893 860 800 630 365 16 12 174 45

CNAA B D L P R

WeightCNB kg

710 800 765 715 250 10 14 56800 880 850 800 250 10 14 74900 1000 970 900 350 16 15 91

1000 1090 1050 1000 350 16 15 100




Products


Performance Curves

p t, P

a

CNA250-Dmax.= 3150 r.p.m. (belt driven)max.= 3600 r.p.m. (direct

coupled) = 1.20 kg/m3

Iv = 0.025 kgm2

Impeller tip speedu = 0.013 x n, m/s

1000

1200

1400

800

600

400

200 14001600

18002000

2200

2400

2600

2800 50%

40%

60%

65%

70%71

%

71%

70% = 65%

300095dB

92dB

89dB

86dB

83dB

0.1pd

0.20.3

0.4

0.5

0.60.7

0.80.9

1 kW

3200

3400

n=3600

00 0.5 1 m3/sqv

0 10 20 m/sv

0 100 200 300 Papd

p1

pd + p20 100 200 300 400 Pa

0 10 20 30 Pa


Sound data:Please see page 587


p t, P

a

CNA315max.= 3000 r.p.m. = 1.20 kg/m3

Iv = 0.05 kgm2

Impeller tip speedu = 0.016 x n, m/s




Products


p t, P

a

CNA400max.= 1950 r.p.m.Iv = 0.175 kgm2

CNB400max.= 2380 r.p.m.Iv = 0.3 kgm2

Impeller tip speedu = 0.021 x n, m/s = 1.20 kg/m3

p t, P

a

CNA500max.= 1575 r.p.m.Iv = 0.55 kgm2

CNB500max.= 1925 r.p.m.Iv = 0.75 kgm2








Products


p t, P

a

CNA630max.= 1240 r.p.m.Iv = 1.35 kgm2

CNB630max.= 1515 r.p.m.Iv = 1.85 kgm2


p t, P

a

CNA710max.= 1105 r.p.m.Iv = 3 kgm2

CNB710max.= 1350 r.p.m.Iv = 3 kgm2








Products


p t, P

a




p t, P

a

CNA900max.= 870 r.p.m.Iv = 7.75 kgm2

CNB900max.= 1065 r.p.m.Iv = 7.75 kgm2








Products


p t, P

a









570 Low- and Medium-Pressure Centrifugal Fans CND and CNF

Products


Low- and Medium-Pressure Centrifugal Fans CND and CNFCentrifugal fans of type CND and CNF are lightand compact low- and medium pressure fans de-signed for installation in aggressive environ-ments.

The type CND is produced in 7 sizes with impel-ler diameters from 315 mm to 710 mm, airflowrates from 0.2 m3/s to 10 m3/s and total pressuresup to approximately 2000 Pa.

The type CNF is produced in 6 sizes with impellerdiameters from 400 mm to 710 mm, airflow ratesfrom 0.2 m3/s to 11 m3/s and total pressures up toapproximately 4000 Pa.

The CND and CNF have both the following maincomponents.

Fan housing constructed from two rectan-gular side panels and an all-welded casing.

Inlet funnel mounted in the front side panelof the fan with a boss for duct connection anddesigned to conduct air to the impeller with aslittle loss as possible.

Impeller with 8 backward-curved blades.The impellers in the CND and CNF share thesame design and are produced with the samegeometry and material. The CND is, however,partially welded, while the CNF is all-welded.The CNF is thus designed for operation withhigher RPMs.

Bearing part with two dustproof and water-proof deep groove ball bearings mounted inflanged bearing housings. The bearings havelifetime lubrication.

Surface Treatment and MaterialAll parts of the fans are treated with a 60 m hot-dip galvanisation for protection.

Alternatively, by special agreement and at addi-tional cost, the fans can also be made of stainlesssteel AISI 316L.

MotorsThe motors fitted in the CND and CNF are eitherdirect coupled or belt-driven.Requirement: B5 flange (large flange) for all motorsizes for directly coupled motors and B3 (base) forbelt-driven motors.

EnvironmentCentrifugal fan types CND and CNF are designedfor the temperature range -20C to +70C.

Galvanised versions meet the requirements foroperation in medium-level corrosive environ-ments in accordance with DS/EN ISO 12944-2,corrosion category C3.The stainless version of the fans is designed, withregard to materials and finishing, to function incorrosion category C5-I (very high), as formulatedin DS/EN ISO 12944-2.

Centrifugal Fan Type CND



Low- and Medium-Pressure Centrifugal Fans CND and CNF 571

Products


Accessories

Duct Boss - InletThis is fitted as standard on both CND and CNF.Loose duct bosses are available for connection ofducts with flexible connections.

Flexible ConnectionsFor duct boss and outlet flange.Versions (materials) for both circular (inlet) andsquare (outlet) connections.

Mating FlangeFor installation on the outlet of the fan.The mating flanges consist of welded steel framesand are finished with min. 60 m hot-dip galvani-sation.

Inspection HatchThe CND and CNF are available with an inspec-tion hatch located in the casing of the housing.Inspection hatches are available in 2 sizes, de-pending on the fan size.The location of the inspection hatch in relation tothe outlet direction must be stated on order.

Drain PlugThe location of the drain plug in the side panels ofthe fan housing in relation to the outlet directionmust be stated on order.

Wire guardsWire guards are available for the inlet (circular)and outlet (square), respectively.

Anti-Vibration MountingsBoth the CND and CNF are available with anti-vi-bration mountings.The location and choice of anti-vibration mount-ings are shown in the installation instructions.

Spark proof Inlet FunnelSpark proof inlet funnels for use in environmentswith increased security are available for both theCND and CNF.




Products


Dimensions

Weights

CND/CNFSize

A[mm]

A1[mm]

B[mm]

B1[mm]

C[mm]

D[mm]

E[mm]

F 1[mm]

G[mm]

H[mm]

J[mm]

K[mm]

L approx.[mm]

S[mm]

315 690 410 595 345 252 315 280 ML-24 297 525 11.5 335 1,040 100400 800 485 700 400 312 400 340 ML-24 357 585 11.5 430 1,120 125450 891 543 760 445 347 450 375 ML-29 392 655 14 480 1,175 125500 1,000 600 850 500 392 500 420 ML-29 443 690 14 535 1,255 125560 1,121 673 953 560 437 560 465 ML-29 488 795 14 595 1,440 125630 1,246 760 1,063 622 482 630 510 ML-26 533 840 14 665 1,525 125710 1,405 869 1,135 672 537 710 577 ML-31 595 910 14 750 1,620 125

1. ML in this column means Motor Length.

F

L

B

B1

A1

A

H

D

C

E

G

K

S S

SS4

5

T

For anti-vibration mountings J

CND/CNFSize

Weight, direct coupled,excl. motor [kg]

Weight, belt-driven,excl. motor [kg]

315 40 62400 59 78450 77 100500 84 118560 113 165630 153 206710 187 255




Products


Outlet Flanges

Motor Sizes and Position Designations

The positions are according to EUROVENT and seen from the motor side.

CND/CNFSize

A[mm]

B[mm]

C[mm]

F [mm]

G[mm]

K[mm]

M[mm]

N[mm]

T[mm]

P[qty.]

R[mm]

315 315 220 30 347 252 110 1 2 142,5 10 7400 400 280 30 432 312 140 1 2 185 10 7450 450 315 30 482 347 125 2 2 185 12 7500 500 350 35 536 386 125 2 3 155 14 7560 560 395 35 596 431 125 2 3 155 14 7630 630 440 35 666 476 170 2 3 200 14 7710 710 497 40 750 537 150 3 4 170 18 10

Direct coupled and lowmotor bracket for belt drive

Belt drive with motormounted on fan housing

Mating flanges with the same size bolt holes asthe outlet flanges are available as accessories.

Connection ducts are made with the same internaldimensions as the outlet opening of the fan (A xB).

P stk. x R

G

C

B

A NxT F

MxK

RD 0 RD 90 RD 180 RD 270

LG 0 LG 90 LG 180 LG 270

LG/1 LG/2 LG/3 LG/4

RD/1 RD/2 RD/3 RD/4




Products


Position Designations for Impeller

Motor Sizes

Please note that motor flange B5 is a large flangeand for all motor sizes. The junction box of the

motor must be coordinated with the motor coverof the fan.

Max. RPM

Pos. LG Pos. RD

CND/CNFSize

Motor Size- 80 - 90 - 100 - 112 - 132 - 160 - 180

315 * * * *400 * * * * *450 * * * * *500 * * * * *560 * * * *630 * * * *710 * * * *

The CND and CNF share the same design and areproduced with the same geometry and material.The CND is, however, partially welded, while theCNF is all-welded. The CNF is thus designed foroperation with higher RPMs.

Steel quality: Domex 500Surface treatment: Hot-dip galvanisation, approx.60 m zinc.

CND/CNFSize

Max. RPMCND CNF

315 4618 5874400 3426 4090450 2957 3365500 2592 2927560 2249 2464630 2086 2387710 1797 1994




Products


Motor Installation

Low-Mounted Bracket for Large Motors

Shaft End

Motor Installation Sizes for Direct Coupled Motors Belt-driven - motor on side Belt-driven - motor on top

CND/CNFSize

Motor Installa-tion Size

CND/CNFSize

Max. Motor CND/CNFSize

Max. MotorType Weight [kg] Type Weight [kg]

315 80 - 112 315 112 40 315 112 40400 80 - 132 400 112 40 400 112 40450 80 - 132 450 112 40 450 112 40500 80 - 132 500 132 70 500 132 70560 100 - 160 560 132 70 560 132 70630 100 - 160 630 132 70 630 132 140710 112 - 180 710 132 70 710 160 140

Motor on top- horizontal motor panel

Motor on side- vertical motor panel

The maximum allowable motor sizes that can beinstalled directly on the fans appear from the be-low tables

Large motors are mounted on low motor bracketsthat are bolted to the fan housing. The low centreof gravity and the large distances between the in-stallation points give a stable installation for largemotors.The required motor and fan positions are shownto the right.

b

ld

t

CND/CNFSize d I b t315 28h6 30 8 31400 28h6 30 8 31450 38h6 50 10 41500 38h6 50 10 41560 48h6 70 14 51630 48h6 70 14 51710 65h6 70 18 69




Products


Dimensioning CurvesThe shaded areas in the below figures indicate themaximum working ranges for the standard motorsizes.

Basis for chart (Arr. D) SymbolsPt = Total pressure qv = Volume flowPd = Dynamic pressure, outlet n = RPMP1 = Connection loss, inlet = efficiency in %P2 = Connection loss, outlet kW = Power demand, impellerv = air speed, outlet dB = Sound power level, outlet

3 x

Da

D1

1 x D1

Da

CND-315

CNF-315

Max. = 4,618 RPMIpt = 0.0951 kg x m2

Max. = 5,874 RPMIpt = 0.0951 kg x m2

= 1.20 kg/m3 (at 20 C)

v

Pd

Pd + P2P1

qv

2000

2500

3000

3500

4000

4618Max. speed

CND

60

m3/sm/s

3

Pa

Pa

Pa40

1500

100

1000

1000

2.52

30

50

500

500

1.51

20

0.5

100

0

0

0

0

Pt,Pa

0

1000

2000

3000

4000

5000

6000 65 70 74 74

65

70

60%109 dB

106 dB

103 dB

97 dB94 dB

88 dB91 dB

100 dB

1.5

2.25

3 4

4.5

7.5

9 kW6




Products


CND-400

CNF-400

Max. = 3,426 RPMIpt = 0.2440 kg x m2

Max. = 4,090 RPMIpt = 0.2440 kg x m2

= 1.20 kg/m3 (at 20 C)

v

Pd

Pd + P2P1

qv

106 dB

103 dB

100 dB

97 dB

94 dB91 dB

1 2

3

6 8

9 10 kW7.5754

60%

65

7075777775706560

Max. speedCND

Max. speedCNF

Pd

m3/sm/s

Pa

Pa

Pa

1000

4

40

90

900800

8060 70

700600

500

500

5040

400300

3

30

3020

200

20

21

100

10

10

0

0

0

0

0

0

1000

2000

3000

4000

Pt,Pa

5000

CNFCND

1500

2000

2500

3000

3426

n= 4090

CND-450

CNF-450

Max. = 2,957 RPMIpt = 0.4218 kg x m2

Max. = 3,365 RPMIpt = 0.4218 kg x m2

= 1.20 kg/m3 (at 20 C)

4000

3000

2000

1000

0

0

0

0

0

0

10 20 30

400 500 600 700200100 300

20000 3000010000

50 60 7010 20 30 40

40

2 3 54 3m /sm/s

Pa

Pa

Pa

1

pt,Pa

CND CNF

Max. speedCNF

Max. speedCND

v

Pd

Pd + P2P1

qv

65 70 75 77 77 75 70

65

60%

91 dB

106 dB

103 dB

100 dB

97 dB

94 dB

1 2

3 4

5 6

8

10 kW

1400

2600

n = 336

5

2957

2200

1800

60




Products


CND-500

CNF-500

Max. = 2,592 RPMIpt = 0.6430 kg x m2

Max. = 2,927 RPMIpt = 0.6430 kg x m2

= 1.20 kg/m3 (at 20 C)

4000

3000

2000

1000

0

pt,Pa

0

0

0

0

0

10 20 30

400 500 600 700200100 300

500 1000

50 60 7010 20 30 40

2 3 5 64 3m /sm/s

Pa

Pa

Pa

1

CND CNF

Max. speedCNF

Max. speedCND

v

Pd

Pd + P2P1

qv

1200

1500

1800

2200

2592

n = 292

760 65 70 75 79 79 75

70

65

60%

106 dB

103 dB

100 dB

97 dB

94 dB

91 dB

1 2

3 4

5 6 7

9

11 kW

CND-560

CNF-560

Max. = 2,249 RPMIpt = 1.0212 kg x m2

Max. = 2,464 RPMIpt = 1.0212 kg x m2

= 1.20 kg/m3 (at 20 C)

3000

2000

1000

00 1 2 3 4 5

Max. speedCNF

Max. speedCND

6 7

10 20 300

0

0

0

100 200 300 400 500 600

5000 10000

10 20 30 40 50 60

3m /sm/s

Pa

Pa

Pa

CND CNF

pt,Pa

v

Pd

Pd + P2

P1

qv

60 65 70 75 80 81 81 80 75

70

65

60%

1 2

3 4

5 6

7 8 9

1011 kW

1000

1300

1600

1900

2249

n = 246

4

106 dB

103 dB

100 dB97 dB

94 dB

91 dB




Products


CND-630

CNF-630

Max. = 2,086 RPMIpt = 2.2571 kg x m2

Max. = 2,387 RPMIpt = 2.2571 kg x m2

= 1.20 kg/m3 (at 20 C)

CND CNF

1000

0

2000

3000

4000 60 65 70 75 80 83 83 80

75

70

65

60%

0 1 2 3 4 5 6 7 8 9

2 4

6 8

10

1214

1618 kW

1200

1400

1600

1800

1000

Max. speedCNF

0

0

0

0

10 20 30

100 200 300 400 500 600 700

500 1000

10 20 30 40 50 60 70

94 dB

97 dB

100 dB

103 dB

106 dB

109 dB

3m /s

Pa

m/s

Pa

Pa

pt,Pa

n = 2387

2086Max. speedCND

v

Pd

Pd + P2P1

qv

CND-710

CNF-710

Max. = 1,797 RPMIVent = 3.6479 kg x m2

Max. = 1,994 RPMIVent = 3.6479 kg x m2

= 1.20 kg/m3 (at 20 C)

0

0

0

0

10 20 30

400 500 600 700200100 300

500 1000

50 60 7010 20 30 40

m/s

Pa

Pa

Pa

3000

2000

1000

00 5 10

60 65 70 75 80 84 84 80 75

65

60 %

1600

1400

1200

1000

CND CNF

Max. speedCNF

Max. speedCND

94 dB97 dB

100 dB

103 dB

106 dB

109 dB

2 4

6 8

10

12

1416

3m /s

pt,Pa 1797

n = 19

94

v

Pd

Pd + P2P1

qv

1820 kW




Products


Accessories

Duct bosses

Flexible Connections

Mating Flanges

These are fitted as standard on both the CND andCNF.Loose duct bosses are available for connection ofducts with flexible connections.

Material: SteelSurface treatment: Hot-dip galvanised, approx.60 m

Duct bosses

Inlet Outlet

These are for duct bosses and outlet flanges andavailable in both flameproof and incombustiblematerials.

Material quality: Perl E 6 Temperature range: -30 to +80 CMaterial quality: Alpha MaritexTemperature range: -36 to +260 C

Flexible Connections

These are or installation on the outlet of the fan.The mating flanges are made of welded steelframes.

Material: Steel Domex 240Surface treatment: Hot-dip galvanised, approx.60 m.

Mating Flanges




Products


Wire guards

Anti-Vibration Mountings

Base Plate for Anti-Vibration Mountings

These are available for both inlets (circular) andoutlets (square).

Material: Steel wireSurface treatment: Electrogalvanised, approx.20 mFinish treatment: Passivated

Wire guards

Both the CND and CNF are available with anti-vi-bration mountings.Refer to the installation instructions for details onthe different kinds of mountings and their loca-tions.

Anti-Vibration Mountings

Both the CND and CNF are available with baseplates for fixing anti-vibration mountings to thefoundation.

Material: Domex 240Surface treatment: Hot-dip galvanised, approx.60 m

Base Plate for Anti-Vibration Mountings




Products


Inspection Hatch

Drain Plug

Spark proof Inlet Funnels

100200

200

300

120o

180o

The CND and CNF are both available with an in-spection hatch located in the casing of the hous-ing.Inspection hatches are available in 2 sizes, de-pending on the fan size.Please state the location of the inspection hatchand drain plug in relation to the outlet directionon order. See example below.

Inspection hatch pos. RD 120Drain plug pos. RD 180

Material: Domex 240Surface treatment: Hot-dip galvanised, approx.60 m

Inspection Hatch

Drain Plug Inspection Hatch

Please state the location of the drain plug in theside panels of the fan housing in relation to theoutlet direction on order.

Material: Stainless steel and hot-dip galvanisedfittings respectively.Connection: 3/4 RG

Drain Plug

Spark proof inlet funnels for use in environmentswith increased security are available for both theCND and CNF.

Material: For example hard brass

Brass Inlet Funnels



Medium-Pressure Centrifugal Fans CMP 583

Products


Medium-Pressure Centrifugal Fans CMP

Centrifugal fans type CMP are single-inlet, lightand compact medium pressure fans designed forinstallation in aggressive environments.The multi-blade impeller and the casing are bothmade from sheet steel.

The fans are available as single or two-speed ver-sions in five sizes. Impeller diameters are from140 to 247 mm, airflow rates from 0.13 to 0.54 m3/s and total pressures up to approximately 1400 Pa.

Main CharacteristicsAll the CMP models share the following maincharacteristics.

Fan housing of sheet steel Impeller with forward-facing blades made

from galvanised sheet steel Corrosion-proof finish in polyester resin Direct coupled class F motors Asynchronous motor with squirrel-cage motor Optional Special windings for different volt-

ages Maximum airflow temperature is 120 C. Optional Maximum airflow temperature of

250 C

Optional Stainless steel fans Optional ATEX approved construction with

category 2 certification for operation in explo-sive atmospheres

Technical CharacteristicsThe specifications of the CMP fans are summedup below.

Surface Treatment and MaterialThe CMP fans are made of sheet steel with impel-ler blades of galvanised sheet steel. Optionally thefans can also be delivered in stainless steel.The finish is a corrosion-proof polyester resinwhich is polymerised at 190 C, after alkaline de-greasing and phosphate-free pre-treatment.

MotorsThe motors fitted in the CMP are direct coupledand asynchronous of the squirrel-cage type. Op-tionally ATEX approved motors are also availa-ble.The motors are class F with ball bearings and haveIP55 protection, except single-phase modelswhich have IP54 protection.Single-phase 230V 50Hz., and three-phase 230/400V 50Hz. (up to 1.1 kW.) and 400/690V 50Hz.(power over 1.1 kW.). Special windings for differ-ent voltages are optional.

EnvironmentCentrifugal fan types CMP are designed for maxi-mum airflow temperatures up to 120 C. Option-ally designs for 250 C are also available.

Centrifugal Fan Type CMP

Model RPMs

Max. current [A] Installedpower[kW]

Max.airflow[m3/s]230 V 400 V

CMP-512-2T 2850 0.55 0.32 0.08 0.13CMP-514-2T 2850 1.21 0.70 0.18 0.28CMP-616-2T 2740 1.73 1.00 0.37 0.40CMP-718-2T 2855 3.00 1.73 0.75 0.39CMP-820-2T 2845 4.16 2.40 1.10 0.54



584 Medium-Pressure Centrifugal Fans CMP

Products

HI-PRES MARINE &

52 centfans.pdf

Documents

centrifugal fans typecal

centrifugal fansowing

centrifugal fans5

calthe cal fans

motor sizes

fan shaft

steel qualities

dimensions shaft ends