Dündar D 35 Axial Chimney and Wall Aspirator 1250 m³ 1285 RPM

What is an Axial Fan?

An axial fan is a type of fan designed to move air along a shaft, creating axial flow. Air enters and exits the fan along the same axis. The rotating blades draw air in parallel to this axis and push it out in the same direction. Axial fans produce a high airflow rate and are ideal for moving large volumes of air. However, they generate low-pressure airflows.

Applications of Dündar D Series Axial Fans

• Ventilation for small spaces: Easily mountable on a wall or a vent.
• Residential and commercial use: Effective for areas requiring practical, quiet ventilation solutions.
• Low-pressure, high-volume airflow: Used for general-purpose applications such as moving air or cooling.
• Examples of use:
  • Ventilation of enclosed spaces
  • Hot air removal in areas with high temperatures
  • Odor and smoke removal in homes
  • Exhausting polluted air in offices
  • Environments with dust, cigarette smoke, or steam
  • Cooling industrial machines (e.g., welding machines, transformers, compressors)

Key Factors in Axial Fan Selection

When selecting an axial fan, consider the following:

1. Required Airflow (m³/h)
2. Pressure Losses
3. Acceptable Noise Levels
4. Electrical Power Connection Type

Calculating Required Airflow:

• Formula 1: $$Q \, [\text{m³/h}] = \text{Air Change Rate (per hour)} \times \text{Room Volume (m³)}$$
• Formula 2: $$Q \, [\text{m³/h}] = \text{Number of People} \times \text{Airflow Per Person (m³/h)}$$

Example Calculation

Office Space:

• Area: $50 \, \text{m²}$
• Ceiling Height: $2.6 \, \text{m}$
• Room Volume: $130 \, \text{m³}$
• Air Change Rate: $5$

People in Room: 5

• Activity Level: Normal (no smoking)
• Airflow Per Person: $29 \, \text{m³/h}$

Total Airflow:

Select a fan that meets or exceeds this airflow requirement.

Installation and Power Considerations

• Determine the installation location: wall, ceiling, vent, or duct.
• Ensure compatibility with the electrical system:
  • Single-phase fans (230V) for residential use.
  • Three-phase fans (380V) for industrial environments.

Construction Details of Dündar D Series Fans

Fan Housing and Blades:

• High-quality cold-rolled steel housing
• Aluminum blades for durability
• Corrosion-resistant electrostatic epoxy powder coating
• ISO 1940-compliant dynamically balanced blades
• Quiet operation

Motor Features:

• Manufactured with high-precision CNC machines
• High thermal conductivity aluminum motor housing
• Class F insulation for a wide operating range ($-40^\circ C$ to $+70^\circ C$)
• 230V / 50 Hz single-phase motor
• Certified components with IP44 protection class

Dündar D 35 Axial Wall and Vent Fan Technical Specifications

• Body: Cold-rolled steel
• Blades: Aluminum
• Power: 60 W
• Speed: 1285 rpm
• Airflow: 1250 m³/h
• Noise Level: 54 dB