Dündar CM 21.4 Radial Centrifugal Fan (Single-Phase), 1,575 m³, 1,390 rpm

Name: Dündar CM 21.4 Radial Centrifugal Fan (Single-Phase), 1,575 m³, 1,390 rpm
Brand: Dündar
SKU: 104214100
Price: 166.03 USD
Availability: InStock

$166.03 ~~$230.60~~ · In stock

Brand: Dündar · SKU: 104214100 · Warranty: 24 months

Dündar CM 21.4 Radial Centrifugal Fan (Single-Phase), 1,575 m³, 1,390 rpm

Other options

Dündar CM 16.2 Radial Centrifugal Fan Extractor, Single-Phase, 1,500 m³, 2,700 RPM – $137.36
Dündar CT 16.2 Centrifugal Fan, Three-Phase, 1,500 m³, 2,700 rpm – $136.46
Dündar CM 16.4 Radial Centrifugal Fan (Single-Phase), 750 m³/h, 1,460 rpm – $128.42
Dündar CT 16.4 Radial Centrifugal Fan (Three-Phase), 750 m³, 1,470 rpm – $127.52
Dündar CM 18.2 Radial Centrifugal Fan (Single-Phase), 1,625 m³/h, 2,650 rpm – $163.33
Dündar CT 18.2 Radial Centrifugal Fan / Aspirator, Three-Phase, 1700 m³, 2770 RPM – $163.33
Dündar CM 18.4 Centrifugal Fan, Single-Phase, 1,000 m³, 1,430 rpm – $153.35
Dündar CT 18.4 Radial Centrifugal Fan (Three-Phase), 1,100 m³/h, 1,445 rpm – $153.35
Dündar CM 21.2 Radial Centrifugal Fan (Single-Phase), 2,500 m³/h, 2,700 rpm – $179.18
Dündar CT 21.2 Radial Centrifugal Exhaust Fan, Three-Phase, 2,500 m³, 2,700 RPM – $186.83
Dündar CT 21.4 Radial Centrifugal Fan Extractor, Three-Phase, 1,650 m³, 1,430 RPM – $167.83

Product description

Dündar CM 21.4 Radial Centrifugal Fan Features

Product Type	V	AC/DC	~	Weight	W	Sound	rpm	m³/h
CM 21.4	230	AC	1	13.7	385	60	1390	1575

MODEL	C	D	E	H	L	O	P	S	T
CM 21.4	420	265	360	360	198	220	200	150	169

What Is a Radial Fan?

Fans that generate a pressure difference are called radial fans. The resulting airflow acts in the direction of centrifugal force. A centrifugal fan is a mechanical device used to move air or other gases. Like a pump, these fans have a rotating impeller and a scroll-shaped housing around it. Air or gas enters axially from the center, is pressurized, transferred tangentially to the channels around the impeller, and discharged outward through the outlet. Due to the high pressure they create, centrifugal fans are ideal for high-pressure applications such as drying and air conditioning systems. Since all moving parts are enclosed, they also feature particle reduction properties that make them ideal for use in air pollution control and filtration systems.

Radial Fan Applications

In situations where the pressure and flow rates of axial fans are insufficient,
In duct applications,
In solid-fuel heating boilers,
Hot air exhaust in high-temperature environments, general and industrial buildings,
Warehouses, stockrooms, and storage facilities,
Garages and public buildings, agricultural buildings,
Commercial greenhouses,
Large workshops,
Paint shops,
Factories,
Environments containing dust and vapor,
For cooling industrial machinery,
Welding machines, transformers, compressors.

Radial Fan Casings and Impellers

Radial casing made from cold-rolled high-quality DKP sheet steel,
High corrosion resistance with environmentally friendly electrostatic epoxy powder coating; galvanized forward-curved radial impeller dynamically tested to ISO 1940; manufactured in accordance with EN 60335-2-80 standards
High pressure and flow rate values achieved through inlet nozzle design,
Air inlet protected by a guard against foreign object ingress
Sturdy and neat casing structure with special clinch-type casing assembly,
Low noise level,
Left and right orientation options for installation in any desired direction,

Radial Fan Motors

Quality production without manual handling on high-technology CNC machines,
Aluminum-finned motor housing with high thermal conductivity,
Rotor balanced to ISO 1940 standards for extended bearing service life,
High operating range for windings with insulation class F: −40 °C to +70 °C,* 230 V / 50 Hz single-phase fan motor,
400 V / 50 Hz three-phase fan motor
Standards-compliant certified components,
IP 54 protection class (IP 55 production option available on request)
Variable frequency drive (VFD) control usable with three-phase fans

Things to Consider When Selecting a Fan;

4 parameters should be considered when selecting a fan:

Required Air Flow Rate
Pressure Losses
Acceptable Noise Level
Electrical Power Connection Type

The air change rate required for the space to be ventilated depends on the purpose of the space, the number of occupants and items inside, and their activity levels. Air change rate coefficients for various space types are provided in the table on the side.

Environment	Air Change Rate
Auditoriums	6-8
Paint Ovens	25-50
Vault Rooms	3-6
Cinemas and Theaters	5-8
Commercial Kitchens	15-30
Foundries	8-15
Gymnasiums	4-6
Laundries	10-20
Indoor Swimming Pools	3-4
Restaurants	8-12
Conference Rooms	6-8
Waiting Rooms	10-15
Copy Rooms	10-15
Machine Rooms	10-40
Shops	4-8
Dry Cleaning	5-15
General Manufacturing Areas	4-8
Hospitals	8-12
Laboratories	8-15
Normal Activity (non-smoking)	29 m³/h
Normal Activity (smoking)	58 m³/h
Light Activity	45 m³/h
Heavy Activity (industrial work areas)	60 m³/h

Per-person air volumes in living and working spaces based on activity level can help determine the required airflow rate.

Based on the information provided above, the required air flow rate is determined as follows.

Q [ m³/h ] = Air change rate coefficient (1 hour) × Space volume (m³)
Q [ m³/h ] = Number of people × Air flow rate required per person

After determining the required air flow rate for the space, an appropriate duct design (taking into account noise and air velocity criteria) should be made and pressure losses should be calculated. Depending on the environment in which the fan will operate, the fan type (axial, radial, roof, smoke extraction, etc.) should be decided upon, and the appropriate fan should be selected from the fan curve based on the determined flow rate–static pressure pair. To give a brief example of the above and the table: an office has 5 people working in it, the ceiling height is 2.6 m, and the floor area is 50 m², giving a volume of 2.6 × 50 = 130 m³. The air change coefficient given for an office in the table was 4–8; let us take an average of 5. The air requirement is 130 × 5 = 650 m³/h. If we assume normal activity in the office, 5 people × 29 m³ = 145 m³ of air is needed for the occupants, giving a total of 650 + 145 = 795 m³/h of air requirement.

Fan selection is made according to this flow rate requirement.

After completing the flow rate calculations, the installation location of the fan must be determined. Where will the fan be mounted — on the ceiling, wall, chimney or ventilation duct? Another consideration is the voltage of the electrical supply to the fan. Since we are using an office as our example, let's continue from there. Fans are generally mounted on walls or windows in offices. If domestic electricity is to be used, a single-phase fan should be preferred. If the fan is to be used in an industrial setting, a fan operating on three-phase (380 V) power should be used.

Specifications

Brand	Dündar