Dündar CK31-E1 Circular Metal Duct Radial Fan, 1,800 m³/h, 2,400 rpm

Name: Dündar CK31-E1 Circular Metal Duct Radial Fan, 1,800 m³/h, 2,400 rpm
Brand: Dündar
SKU: 106312100
Price: 111.23 USD
Availability: InStock

$111.23 ~~$154.48~~ · In stock

Brand: Dündar · SKU: 106312100 · Warranty: 24 months

Dündar CK31-E1 Circular Metal Duct Radial Fan, 1,800 m³/h, 2,400 rpm

Other options

Dündar CK10-E1 Round Metal Radial Inline Duct Fan, 250 m³, 2700 RPM (out of stock)
Dündar CK12-E1 Metal Round Duct Radial Fan, 350 m³, 2,650 RPM (out of stock)
Dündar CK15-E1 Circular Metal Duct Radial Fan, 550 m³/h, 2,400 rpm (out of stock)
Dündar CK16-E1 Metal Round Inline Duct Radial Fan, 600 m³, 2,400 RPM (out of stock)
Dündar CK20-E1 Metal Radial Round Duct Fan, 950 m³, 2,500 RPM – $97.99
Dündar CK25-E1 Metal Radial Round Inline Fan, 1250 m³, 2200 RPM – $104.18

Product description

Dündar CK31-E1 Circular Metal Duct Radial Fan

Product Type	V	AC/DC	~	Weight	W	Sound	rpm	m³/h
CK 31 E1	230	AC	1	6.3	240	59	2400	1800

MODEL	A	B	ØC	ØD
CK31-E1	235	25	405	314

What Is a Duct Fan?

A duct fan is defined as a fan installed inside or connected to a duct to provide optimal air circulation. A duct-type fan does not mount directly to drywall or a ceiling; instead, it is typically installed in a ceiling void or roof space, connected to the air ducts.

What Are the Advantages of Duct Fans?

Powerful airflow and easy installation
It provides sustained high pressure, high efficiency, and low noise.
Both sides of duct fans can be connected to ducts and secured with clamps. The fans can operate in any mounting position.

Dündar Duct Fans – Fan, Body, and Impeller

Duct fans feature a highly corrosion-resistant galvanized steel casing,
Backward-curved duct-type impeller dynamically tested to ISO 1940 standards,
Low noise level

Dündar Duct Fans – Motor

High-efficiency external rotor motor
High-quality production without manual intervention on high-technology CNC machines,
Long bearing service life with a rotor impeller balanced to ISO 1940 standards,
Insulation class F with a high operating range for windings from −40 °C to +70 °C,
230 V / 50 Hz single-phase fan motor,
Thermal overload protection on single-phase fans with certified compliant components,
IP 44 protection class,
The operating range stated is for the winding only.
Operating range for the motor: −20 °C to +45 °C.
Please contact us for other options.
Custom production in various voltages and frequencies is available on request.

Dündar Duct Fan Applications

Designed for use in duct or pipe applications.
If you wish to run the unit at no-load, please contact us!
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,
Cooling of industrial machinery (welding machines, transformers, compressors)

Information:

Product data may vary in technical values depending on the application.
All data has been measured in accordance with TSE and EC standards.
Sound level measurement was performed at a distance of 1.5 m from the product.
Recommended service life is 10 years.
All products carry a warranty certificate approved by the Ministry of Industry.
Warranty period is 2 years.
Dündar reserves the right to make changes to its products without prior notice for the purpose of product improvement.

Type: Aspirator
Operating Voltage: 220 V
Blade Diameter (cm): 31.4
Flow Rate (m³/h): 1,800
Power (W): 240
Speed (RPM): 2,400

Points 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 changes required for the space to be ventilated depend on the intended use of the space, the number of occupants and objects inside, and their activities. The table alongside provides the required air change rate coefficients for different environments.

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 workspaces)	60 m³/h

The amount of air per person in living and working spaces depending on activity level can help determine the required air flow rate.

Normal Activity (Non-Smoking)	29 m³/h
Normal Activity (Smoking)	58 m³/h
Light Activity	45 m³/h
Heavy Activity	60 m³/h

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

Q [m³/h] = Air change rate (1 hour) * Room volume (m³)

Q [m³/h] = Number of persons × Air flow rate required per person

After determining the required airflow for the space, proper duct design should be carried out (taking into account noise and air velocity criteria) 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 selected, and the appropriate fan should be chosen from the fan curve based on the determined flow rate–static pressure pair. To illustrate the above briefly with an example: an office has 5 employees; with a ceiling height of 2.6 m and a floor area of 50 m², the volume is 2.6 × 50 = 130 m³. The air change rate given for offices in the air change coefficient table is 4–8; taking an average of 5, the air requirement is 130 × 5 = 650 m³/h. Assuming normal activity in the office, 5 people × 29 m³ = 145 m³ of air is needed for occupants, giving a total air requirement of 650 + 145 = 795 m³/h.

Fan selection is made according to this flow rate requirement.

After completing the flow rate calculations, the location where the fan will be installed should be determined. Where will the fan be installed — on the ceiling, wall, chimney, or ventilation pipe? Another consideration is the voltage of the electrical supply to the fan. Taking the office as our example, fans in offices are generally mounted on a wall or window. If standard residential electricity is to be used, a single-phase fan should be selected. For use in an industrial setting, a fan operating on three-phase (380 V) power should be used.

Specifications

Brand	Dündar