25 mm centrifugal fans - · pdf filehigh performance levels 80m3/h (22 l/s) beab approved...

TECHNICAL DATA MAINS VOLTAGE MODELS

• Extract Volume : 80 m3/h • Sound Volume* : 26.0dB (A)@3m • Voltage : 230-240v AC~ • Frequency : 50 Hz • Wattage : 35W • Max. Temp. : 50 ºC • Weight : 1.1 kg • Max Pressure : 150 pa

Double Insulated

* : Independent Tests 14-7-2003

DIMENSIONS

CURZON - 100mm CENTRIFUGAL FANS

SELV MODELS

TECHNICAL DATA SELV MODELS

Transformer • Input Voltage : 230-240v AC~ • Output Voltage : 12v AC~

Fan • Input Voltage : 12v AC~

• Extract Volume : 72 m3/h • Sound Volume : 29.4dB (A)@3m • Frequency : 50 Hz • Wattage : 44W • Max. Temp. : 50 ºC • Weight : 2.0 kg (Combined)

• Max Pressure : 125 pa

CU

RZO

N -

100

mm

CEN

TRIF

UG

AL F

ANS

A

B

Ø

C Measured in mm A : 216 B : 195 C : 50 D : 52 E : 98 Ø** : 80/100 * (80mm without adaptor—

100mm with adaptor)

The SELV models of the Curzon Centrifugal range are designed for use within the bath / shower areas and are fitted with long life 12v AC~ motors. The low voltage supply is from a transformer which is supplied with each SELV model ordered. The SELV models are available with over-run timer or humidistat & timer.

Transformers should be located outside the splash zone but all fans are suitable for siting within this area. The Curzon fan can be sited up to 8 metres from the transformer

PERFORMANCE GRAPH For

CURZON CENTRIFUGAL

0 20 40 60 70 80 90 m3/h

Pa 140

120

100

80

60

40

20

0


CURZON CENTRIFUGAL SELV

Pa

140

120

100

80

60

40

20

0 0 20 40 60 70 m3/h

D

E

25

High Performance Levels 80m3/h (22 l/s) BEAB Approved IP24 Rated Humidity Versions Now Fitted With

“Intelligent” Humidistat Control Boards Integral Back Draught Shutters

Mains Voltage and SELV Models Available

Surface Mount or In-Line Models Available

3 Year Replacement Warranty on All Models

SPECIFICATION & INSTALLATION OVERVIEW

CU

RZO

N - 100

mm C

EN

TRIFU

GA

L FAN

S

Code Model

CUR 7001B Standard CUR 7002B Pull - cord CUR 7003B Over - run Timer CUR 7004B Humidistat & Timer CUR 7005B Timer & PIR CUR 7006B Humidistat, Timer & PIR CUR 9003LV SELV Single Speed - Over-run Timer CUR 9004LV SELV Single Speed – Humidistat & Timer

CUR 501A Fire Shutter Back Plate (1 Hour Rated)

CUR 7001BKIT In Line Version - Standard CUR 7003BKIT In Line Version - Timer

The Silavent Curzon range of fans are ideal for bathrooms and toilets where longer duct runs are required. Made from high gloss ABS, these fans produce an impressive pressure performance required to extract air along longer ducting runs and are capable of extracting up to 80m3/h. Easy to install, the Curzon fans are built to the highest quality with the motor mounted on rubber bushes for quietness and long life.

This range of fans is designed for wall or ceiling fixing and for use with all Silavent 100mm duct and flatduct. It can also be used in conjunction with an integral fire shutter back plate which is rated to 1 hour (FLA501A). The pull cord model is not suitable for ceiling mounting.

The humidistat versions are now fitted with the new “Intelligent” electronic humidity controls which work as intelligent humidistat. Unlike traditional humidity controls which trigger when humidity reaches a pre-set level, the “Intelligent” board reacts to a significant rate of change in a location’s humidity level - See Mayfair Range for full explanation of how “Intelligent” controls operate.

The in-line versions of the CURZON are designed to provide a powerful centrifugal fan to fit out of sight within the roof area. Giving the same performance as the surface mounted version, this model is ideal for use with the Silavent SPOTVENT shower light products.

PRODUCT SUMMARY

MODELS AVAILABLE

26

“Intelligent” Humidity Controls Fitted

to Humidistat Models

CURZON - 100mm CENTRIFUGAL FANS


• Extract Volume : 70 m3/h (HIGH) : 43m3/h (LOW) • Sound Volume* : 22.0dB (A)@3m(HIGH) : 12.0dB (A)@3m(LOW) • Voltage : 230-240v AC~ • Frequency : 50 Hz • Wattage : 35W (HIGH) • : 20W (LOW) • Max. Temp. : 50 ºC • Weight : 1.7 kg (FAN ONLY) • Max Pressure : 105 pa

Double Insulated


For Single Sped Models, Use Higher Extract Figures

DIMENSIONS

MAYFAIR - SERIES 70 CENTRIFUGAL FANS M

AYFA

IR -

SER

IES

70

CEN

TRIF

UG

AL F

ANS

A

A

0 10 20 30 40 50 60 70 m3/h

Pa

105

90

75

60

45

30

15

0


MAYFAIR SERIES 70 CENTRIFUGAL

FAN OPERATION

Ø

D E

27

Measured in mm A : 250 C : 115 D : 40 E : 80 F : 115 Ø : 85 (FAN)

C

SINGLE SPEED

Standard : Single Speed Fan operated by separate light switch / remote switch (not supplied)

Pull Cord : Single Speed Fan is operated by integral pull cord

Timer : Single Speed Fan operated by separate light switch / remote switch (not supplied). The integral adjustable timer allows the fan to continue operating up to 25 minutes after being switched off

Humidistat : Single Speed Fan. Manual and Automatic operation. The “Intelligent” Humidity Control (IHC) works on detection of a significant change in the rate of increase in humidity levels. Whilst traditional humidistat controls wait for the humidity to reach a pre-set level, IHC detects a significant increase in a location’s humidity level and activates the extract fan immediately. Once the humidity is reduced, the integral adjustable timer allows the fan to continue operating for between 2 minutes and 25 minutes. This fan is operated by separate light switch / remote switch (not supplied)

Infra Red : The fan is activated by movement within the detection area of up to 5 metres. When movement is no longer detected, the integral adjustable timer allows the fan to continue operating for between 2 minutes and 25 minutes

TWIN SPEED

Standard : Twin Speed Fan designed to operate continuously at low speed. High speed is activated by separate light switch / remote switch (not supplied)

Timer : As the standard model but incorporates an integral adjustable timer. The timer will operate for between 2 minutes to 25 minutes after the switch has been turned off and the fan will return to running at the low speed. This fan is operated by separate light switch / remote switch (not supplied)


Recessed or Surface Fixing on Wall / Ceiling

(In-Line Option Also Available) Integral Back Draught Shutters (SINGLE SPEED FANS ONLY)

BEAB Approved

Extract Rate 70m3/h (20 l/s) (HIGH SPEED)

43m3/h (12 l/s) (LOW SPEED) IPX4 Rated Plug In Fan Design -

Ideal For Large Building Projects “Intelligent” Humidistat Technology

3 Year On-Site Warranty on All Models


MAY

FAIR

- SE

RIE

S 70 C

EN

TRIFU

GA

L FAN

S

Code Model

MSS 070B Single Speed - Standard MTD 070B Single Speed - Over - run Timer MPC 070B Single Speed - Pull Cord MCC 070B Single Speed - Humidistat & Pull Cord MIR 070B Single Speed - Timer & PIR

MTS 070B Twin Speed - Continuous Trickle With Boost MTT 070B Twin Speed - Continuous Trickle With Boost & Timer MCT 070B Twin Speed - Humidistat, Timer & Pull Cord

The Mayfair Series 70 is designed to be installed in 2 parts—the building in frame first to reduce initial installation costs and on-site damage, followed by a plug-in fan body which allows easy maintenance and replacement. This is a system used effectively over the past 40 years by Silavent and proves to be highly effective on large building projects. The unit is constructed of high gloss ABS with a motor mounted on rubber bushes to provide high pressure performance combined with an impressive quietness.

PRODUCT SUMMARY

MODELS AVAILABLE

RECESSED FITTING USE

MAY 905B

SURFACE MOUNTING

(REMOVE FAN MOTOR DOME COVER) USE

MAY 504A

IN-LINE MOUNTING

(NOT PIR, HUMIDISTAT MODELS) USE

MAY 908B

CEILING MOUNTING

(With 225mm x 25mm Flatduct) USE

FLA 105A

CEILING MOUNTING


PFL 420A

WASHABLE FILTER COVER


MAY 901A

28



MAYFAIR - SERIES 70 CENTRIFUGAL FANS


• Extract Volume : 97 m3/h (HIGH) : 50m3/h (LOW) • Sound Volume* : 32.0dB (A)@3m(HIGH) : 12.0dB (A)@3m(LOW) • Voltage : 230-240v AC~ • Frequency : 50 Hz • Wattage : 50W (HIGH) • : 20W (LOW) • Max. Temp. : 50 ºC • Weight : 1.7 kg (FAN ONLY) • Max Pressure : 150 pa

Double Insulated


For Single Speed Models, Use Higher Extract Figures

DIMENSIONS


AYFA

IR -

SE

RIE

S 1

00 C

EN

TRIF

UG

AL F

AN

S

A

A

0 20 40 60 70 80 90 100 m3/h

Pa

140

120

100

80

60

40

20

0



SINGLE SPEED

Standard : Single Speed Fan operated by separate light switch / remote switch (not supplied)

Pull Cord : Single Speed Fan is operated by integral pull cord

Timer : Single Speed Fan operated by separate light switch / remote switch (not supplied). The integral adjustable timer allows the fan to continue operating up to 25 minutes after being switched off


Infra Red : The fan is activated by movement within the detection area of up to 5 metres. When movement is no longer detected, the integral adjustable timer allows the fan to continue operating for between 2 minutes and 25 minutes

TWIN SPEED

Standard : Twin Speed Fan designed to operate continuously at low speed. High speed is activated by separate light switch / remote switch (not supplied)

Timer : As the standard model but incorporates an integral adjustable timer. The timer will operate for between 2 minutes to 25 minutes after the switch has been turned off and the fan will return to running at the low speed. This fan is operated by separate light switch / remote switch (not supplied)


FAN OPERATION

Ø

D E

29


C

Recessed or Surface Fixing on Wall / Ceiling

(In-Line Option Also Available) Integral Back Draught Shutters (SINGLE SPEED FANS ONLY)

BEAB Approved

Extract Rate 97m3/h (27 l/s) (HIGH SPEED)

50m3/h (14 l/s) (LOW SPEED) IPX4 Rated Plug In Fan Design -




MAY

FAIR

- SE

RIE

S 100 C

EN

TRIFU

GAL FA

NS

Code Model

MSS 100B Single Speed - Standard MTD 100B Single Speed - Over - run Timer MPC 100B Single Speed - Pull Cord MCC 100B Single Speed - Humidistat & Pull Cord MIR 100B Single Speed - PIR & Timer

MTS 100B Twin Speed - Continuous Trickle With Boost MTT 100B Twin Speed - Continuous Trickle With Boost & Timer MCT 100B Twin Speed - Humidistat, Timer & Pull Cord


PRODUCT SUMMARY

MODELS AVAILABLE


MAY 905B

SURFACE MOUNTING

(REMOVE FAN MOTOR DOME COVER)

USE MAY 504A

IN-LINE MOUNTING


MAY 908B

CEILING MOUNTING


FLA 105A

CEILING MOUNTING


PFL 420A



MAY 901A

30





• Extract Volume : 140 m3/h • Sound Volume* : 40.0dB (A)@3m • Voltage : 230-240v AC~ • Frequency : 50 Hz • Wattage : 60W • Max. Temp. : 50 ºC • Weight : 1.7 kg (FAN ONLY) • Max Pressure : 175 pa

Double Insulated


DIMENSIONS


AYFA

IR -

SE

RIE

S 1

40 C

ENTR

IFU

GA

L FA

NS

A

A


0 40 80 120 160 m3/h

Pa

175

150

125

100

75

50

25

0



Standard : Single Speed Fan operated by separate light switch / remote switch (not supplied) Pull Cord : Single Speed Fan is operated by integral pull cord Timer : Single Speed Fan operated by separate light switch / remote switch (not supplied). The integral adjustable timer allows the fan to continue operating up to 25 minutes after being switched off Humidistat : Single Speed Fan. Manual and Automatic operation. The “Intelligent” humidity control (IHC) works on detection of a significant change in the rate of increase in humidity levels. Whilst traditional humidistat controls wait for the humidity to reach a pre-set level, IHC detects a significant increase in a location’s humidity level and activates the extract fan immediately. Once the humidity is reduced, the integral adjustable timer allows the fan to continue operating for between 2 minutes and 25 minutes. This fan is operated by separate light switch / remote switch (not supplied) Infra Red : Single Speed Fan activated by movement within the detection area of up to 5 metres. When movement is no longer detected, the integral adjustable timer allows the fan to continue operating for between 2 minutes and 25 minutes

FAN OPERATION

Ø

D E

31

C

Recessed or Surface Fixing on Wall / Ceiling Integral Back Draught Shutters

Extract Rate 140m3/h (39 l/s)

IPX4 Rated Plug In Fan Design -




MAY

FAIR

- SE

RIE

S 140 C

EN

TRIFU

GAL FAN

S

Code Model

MSS 140B Single Speed - Standard MTD 140B Single Speed - Over - run Timer MPC 140B Single Speed - Pull Cord MCC 140B Single Speed - Humidistat & Pull Cord MIR 140B Single Speed - PIR & Timer


PRODUCT SUMMARY

MODELS AVAILABLE


MAY 905B

SURFACE MOUNTING

USE FLA 106A

IN-LINE MOUNTING

NOT AVAILABLE

ON SERIES 140

CEILING MOUNTING


FLA 105A

CEILING MOUNTING


PFL 420A



MAY 901A

32





• Extract Volume : 79 m3/h (HIGH) : 36 m3/h (LOW) • Sound Volume : 38.8dB (A)@3m(HIGH) : 16.8dB (A)@3m(LOW) • Voltage : 230-240v AC~ • Frequency : 50 Hz • Wattage : 35W (HIGH) : 20W (LOW) • Max. Temp. : 50 ºC • Weight : 1.5 kg (FAN ONLY) • Max Pressure : 70 pa

Double Insulated

DIMENSIONS

MAYFAIR CLASSIC - CENTRIFUGAL FANS M

AYFA

IR C

LAS

SIC

- C

EN

TRIF

UG

AL

FAN

S

A

A

Measured in mm A : 197 B : 98.5 Ø : 80

0 20 40 60 70 80 90 m3/h

Pa

70

60

50

40

30

20

10

0


MAYFAIR CLASSIC CENTRIFUGAL

SINGLE SPEED

Standard : Fan operated by separate light switch / remote switch (not supplied)

Timer : Fan operated by separate light switch / remote switch (not supplied). The integral adjustable timer allows the fan to continue operating up to 25 minutes after being switched off

TWIN SPEED Timer : Fan designed to operate continuously at low speed. High speed is activated by separate light switch / remote switch (not supplied). The integral adjustable timer allows the fan to continue operating at high speed up to 25 minutes after being switched off before reverting to the lower speed

FAN OPERATION

33

Ø

Recessed Fan,

Available With Fire Rated With Integral Shutter Variable Spigot Position

Extract Rate 79m3/h (22 l/s) IPX4 Rated Thermal Overload Protection

Maintenance Free Ball Bearing Motor

Motor Mounted On Rubber Bushes -

Significantly Reduces Vibration 3 Year On-Site Warranty on All Models


MAY

FAIR

CLA

SS

IC - C

EN

TRIFU

GA

L FAN

S

Code Model

MAY 102B Single Speed - Standard MAY 202B Single Speed - Over - run Timer MAY 402B Twin Speed - Over - run Timer MAY 502A Fire Shutter - 1 Hour Fire Rated - Gravity - Wall Installation MAY 502S Fire Shutter - 1 Hour Fire Rated - Spring - Wall/Ceiling Installation MAY 907A Building In Frame - 1 Hour Fire Rated

The Mayfair Classic is one of Silavent’s most successful products spanning over 40 years and still very popular in the marketplace. The centrifugal fan is in two parts, a fire protected building in frame that reduces initial cost and a plug-in fan body with fire shutters fitted. This design offers proven ease of maintenance and replacement. This centrifugal fan offers impressive pressure performance making it ideal for the longer duct runs.

PRODUCT SUMMARY

MODELS AVAILABLE

WALL FITTING USE MAY907A

CEILING FITTING USE MAY907A MAY 907A View From Back

MAY 907A View From Front

34 MAYFAIR CLASSIC - CENTRIFUGAL FANS


• Extract Volume : 90 m3/h • Sound Volume* : 38dB (A)@3m • Voltage : 230-240v AC~ • Frequency : 50 Hz • Wattage : 38W • Max. Temp. : 50 ºC • Weight : 1.3 kg • Max Pressure : 108 pa

Double Insulated


DIMENSIONS

PVS 100 - 100mm BATHROOM CENTRIFUGAL FANS P

VS

100

- 1

00m

m B

ATH

RO

OM

CE

NTR

IFU

GA

L F

AN

S

A

A

Ø

C Measured in mm A : 230 B : 20 C : 105 Ø : 97

Standard : Single Speed Fan operated by separate light switch / remote switch (not supplied) Timer : Single Speed Fan operated by separate light switch / remote switch (not supplied). The integral adjustable timer allows the fan to continue operating up to 25 minutes after being switched off Humidistat / Timer : Single Speed Fan with a integral humidity control which switches the fan on if the humidity levels exceed the pre-set level above 50% RH. Once the humidity level is reduced, the adjustable timer continues to operate the fan for up to 25 minutes

FAN OPERATION

B

Pa

120

100

80

60

40

20

0 0 20 40 60 70 80 90 m3/h


PVS 100 BATHROOM CENTRIFUGAL

35

High performance levels 90m3/h (25 l/s) IPX4 Rated Variable Spigot Position

Backdraught Shutters

Washable Air Inlet Filter fitted as Standard

Maintenance Free Motor with Thermal Protection

High Pressure Performance for Longer Duct Runs 2 Year Replacement Warranty on All Models


PV

S 100 - 100m

m B

ATHR

OO

M C

EN

TRIFU

GA

L FANS

Code Model

PVS 100BB Standard PVS 100TBB Over-run Timer PVS 100HTBB Humidistat & Timer

Made from white, fire retardant ABS, the PVS 100mm Bathroom Centrifugal fans are designed to produce high pressure performance to operate effectively over longer duct runs. The variable spigot position allows flexibility in the positioning of the fan and often allows the installer to position the discharge ducting close to the ceiling in any corner of the room and be able to fit the front cover correctly. These centrifugal fans are suitable for use with longer duct runs.

The case is made from a white, fire retardant ABS and includes a maintenance free motor with thermal protection. The fans are supplied with a washable air inlet filter as standard

PRODUCT SUMMARY

MODELS AVAILABLE

36 PVS 100 - 100mm BATHROOM CENTRIFUGAL FANS


• Extract Volume : 260 m3/h • Sound Volume* : 41dB (A)@3m • Voltage : 230-240v AC~ • Frequency : 50 Hz • Wattage : 88W • Max. Temp. : 50 ºC • Weight : 2.2 kg • Max Pressure : 363 pa

Double Insulated


DIMENSIONS

PVS 100 - 100mm KITCHEN CENTRIFUGAL FANS P

VS 1

00 -

100

mm

KIT

CH

EN

CEN

TRIF

UG

AL F

AN

S

A

A

Ø

C Measured in mm A : 265 B : 20 C : 115 Ø : 97

Standard : Single Speed Fan operated by separate remote switch (not supplied) Timer : Single Speed Fan operated by separate light switch / remote switch (not supplied). The integral adjustable timer allows the fan to continue operating up to 25 minutes after being switched off Humidistat : Single Speed Fan with a integral humidity control which switches the fan on if the humidity levels exceed the pre-set level above 50% RH. Once the humidity level is reduced, the fan switches off. This fan is operated by separate remote switch (not supplied) Humidistat / Timer: Single Speed Fan with a integral humidity control which switches the fan on if the humidity levels exceed the pre-set level above 50% RH. Once the humidity level is reduced, the adjustable timer continues to operate the fan for up to 25 minutes. This fan is operated by separate remote switch (not supplied)

FAN OPERATION

B

0 40 80 120 160 200 240 m3/h


PVS 100 KITCHEN CENTRIFUGAL

Pa

400

350

300

250

200

150

100

50

0

37

High performance levels 260m3/h (72 l/s) IPX4 Rated Variable Spigot Position

Backdraught Shutters

Washable Air Inlet Filter fitted as Standard

Maintenance Free Motor with Thermal Protection

High Pressure Performance for Longer Duct Runs 2 Year Replacement Warranty on All Models


PV

S 100 - 100m

m K

ITCH

EN C

EN

TRIFU

GAL FAN

S

Code Model

PVS 100BK Standard PVS 100TBK Over-run Timer PVS 100HBK Humidistat PVS 100HTBK Humidistat & Timer

Made from high gloss white, fire retardant ABS, the PVS 100mm kitchen centrifugal fans are designed to produce high pressure performance to operate effectively over longer duct runs. The variable spigot position allows flexibility in the positioning of the fan and often allows the installer to position the discharge ducting close to the ceiling in any corner of the room and be able to fit the front cover correctly. These centrifugal fans are suitable for use with longer duct runs.

The fans are fitted with maintenance free motors incorporating thermal protection.

The fans are supplied with a washable air inlet filter as standard

PRODUCT SUMMARY

MODELS AVAILABLE

38 PVS 100 - 100mm KITCHEN CENTRIFUGAL FANS


• Extract Volume : 240 m3/h (HIGH) : 120m3/h (LOW) • Sound Volume* : 19.0dB (A)@3m(HIGH) : 12.0dB (A)@3m(LOW) • Voltage : 230-240v AC~ • Frequency : 50 Hz • Wattage : 90W • Max. Temp. : 50 ºC • Weight : 3.1 kg (FAN ONLY) • Max Pressure : 300 pa

Double Insulated


DIMENSIONS

KITCHENAIRE - CENTRIFUGAL FANS K

ITC

HEN

AIR

E -

CEN

TRIF

UG

AL F

ANS

A

B

Measured in mm A : 337 B : 294 C : 74 D : 121 Ø : 100

0 40 80 120 160 200 240m3/h

Pa

350

300

250

200

150

100

50

0


KITCHENAIRE CENTRIFUGAL

SINGLE SPEED

Standard : Single Speed Fan operated by separate light switch / remote switch (not supplied) Pull Cord : Single Speed Fan is operated by integral pull cord

Timer : Single Speed Fan operated by separate light switch / remote switch (not supplied). The integral adjustable timer allows the fan to continue operating up to 25 minutes after being switched off TWIN SPEED Pull Cord : Twin Speed Fan is operated by the 3-position pull cord. The operation of the pull cord is Off, Low, Boost, Off Humidistat : Manual and Automatic operation. If humidity exceeds the pre-set level above 50% RH, the fan switches to low speed. The pull cord offers a manual boost facility to high speed operation.

FAN OPERATION

Ø

C

C

D

39

Integral Back Draught Shutters & Integral Filter Extract Rate 240m3/h (67 l/s)

IP23 Rated Thermal Overload Protection

Maintenance Free Ball Bearing Motor

Motor Mounted On Rubber Bushes -

Significantly Reduces Vibration 3 Year On-Site Warranty on All Models


KITC

HE

NA

IRE

- CE

NTR

IFUG

AL FAN

S

Code Model

KIT 102B Single Speed - Standard KIT 103B Single Speed - Over - run Timer KIT 104B Single Speed - Pull Cord KIT 107B Single Speed - Humidistat & Pull Cord KIT 201B Twin Speed - Pull Cord KIT 203B Twin Speed - Humidistat

The Kitchenaire range of fans are, as the name implies, designed specifically for the kitchen area of the home. The large inlet grille provides a maximum area for extraction and filtration with the overall design of the product aimed to facilitate the removal and cleaning of the integral filter (ANC 303A). The Kitchenaire is a powerful, yet quiet, centrifugal fan made of high gloss ABS built with an exceptionally long life external rotor type motor with sealed for life ball bearings and thermal protection. It offers the ideal alternative to obtrusive cooker hoods. This range of fans can be wall or ceiling mounted and can be used in conjunction with Silavent range of flatduct. Please note that models fitted with a pull cord are not suitable for ceiling mounting.

PRODUCT SUMMARY

MODELS AVAILABLE

WALL FITTING HOLE SIZE 110mm USE ANC 841D

CEILING FITTING (With Flexible Ducting) HOLE SIZE 110mm

USE ANC503BT,ANC596

A etc

CEILING FITTING (With Flatduct)

INSTALL CEILING BOX USE FLA 007A

40 KITCHENAIRE - CENTRIFUGAL FANS

25 mm centrifugal fans - · pdf filehigh performance levels 80m3/h (22 l/s) beab approved...

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