In-line Duct Fans
In-line Duct Fans
In-line duct fans are a basic element for organizing supply and exhaust ventilation. The devices are mounted directly into the cross-section of ventilation ducts, ensuring efficient air exchange in residential, commercial, and industrial buildings.
The range in this section is formed from proven solutions by European manufacturers: Soler & Palau, HAVACO, MMotors JSC, and Dospel. The presented equipment complies with strict technical standards and energy efficiency norms.
Areas of Application and Installation Features
The selection of a specific type of in-line fan depends on the technical requirements of the project and operating conditions:
- Concealed installation: The equipment is installed behind suspended ceilings or in technical niches without disrupting the interior design.
- Acoustic comfort: For facilities with strict noise level requirements, specialized models in sound-insulated casings are used.
- Energy efficiency and automation: Fans with electronically commutated (EC) motors provide precise performance regulation with reduced energy consumption.
Classification of Offered Equipment
The following specialized product lines are available to solve various engineering tasks:
Silent Series
Models: TD-SILENT, TD EVO (Soler & Palau), ICMsilent, ICS-EC (HAVACO).
The design includes a layer of sound-absorbing material in the casing and a special impeller geometry to minimize vibrations and acoustic noise.
Energy-efficient EC Fans
Models: HAVACO ICM-EC, ICS-EC, ICJ-Jet-EC, ICB-P-EC.
Equipped with brushless synchronous motors. They support smooth speed regulation via an external analog signal (0-10V) and maintain high efficiency at low speeds.
Standard Models and Special Versions
Models: MMotors VO, VOK, Dospel TURBO, HAVACO ICM, ICB, Soler & Palau VENT-NK, JETLINE, TD MIXVENT.
Reliable devices for standard ventilation tasks. The MMOTORS VOK series also includes high-temperature modifications with a back shutter and thermostat, designed to operate with airflow up to +150 °C.
Comparison of Electric Motor Technologies
The performance and economy of a ventilation system depend on the type of drive used:
| Motor Type | Operating Features | Application |
|---|---|---|
| AC Motor (Alternating Current) | Simple design, proven reliability. Speed regulation is performed in steps or using external thyristor/autotransformer regulators. | Standard ventilation systems without complex automation. |
| EC Motor (Electronic Commutation) | High efficiency across the entire speed range, precise smooth speed regulation, reduced energy consumption and heat dissipation. | Modern ventilation networks requiring integration with sensors (CO2, humidity) and automation systems. |
Design Types
In-line duct fans are divided by the type of impeller and aerodynamic characteristics:
Axial Models
The airflow moves along the motor axis. They provide high performance at a relatively low aerodynamic resistance in the network.
Radial (Centrifugal)
Create high static pressure necessary to overcome the resistance of long ducts, filters, and heaters.
Mixed-flow (Diagonal)
Combine the advantages of axial and centrifugal fans: compact casing dimensions, reduced noise level, and sufficient air pressure.
In-line Ventilation Installation Scheme
The scheme shows an example of ventilation system organization in commercial premises using circular in-line duct fans. The ductwork network and ventilation equipment are mounted in the ceiling void, leaving only the air distribution diffusers on the outside.
Figure 1: Example of in-line duct ventilation installation behind a suspended ceiling
Technical Selection and Search for Analogs
Ventilation equipment selection services are available to meet specific project requirements. If the required model is not in the main catalog, a search for exact analogs or ordering of non-standard items is carried out based on the provided technical data. To place an order, contact us.
Ventilation System Installation
Installation services for ventilation equipment are available. Information on the conditions and terms of work is presented in the ventilation system installation section.