Duct industrial fans

Duct industrial fans are mounted directly inside the air duct, rather than being installed as a separate external unit. This allows saving space in the room and hiding the equipment from direct visual contact with people, which is especially valued in facilities with high requirements for interior aesthetics.

This type of equipment works well under increased static pressure in the network, which arises due to long air ducts, filters, or a branched system of channels – which is why duct models are so often chosen for facilities with complex ventilation configurations. Main areas of application:

• production enterprises;
• warehouse complexes;
• logistics centers;
• shopping malls;
• supermarkets;
• office buildings.

In each of these cases, the equipment is integrated directly into the air duct network, therefore, installation is usually planned at the stage of designing the facility's ventilation system, rather than adding the fan post factum.

Types of duct industrial fans

Structurally, duct models are divided into several categories depending on the shape of the housing and the specifics of operation. The choice of a specific type depends on the configuration of the air ducts at the facility.

Round duct fans

A feature of the design – is a cylindrical housing that perfectly repeats the shape of a round air duct without additional adapters. A round duct fan is used mainly in round air ducts, where it provides minimal aerodynamic resistance.

This shape remains the most popular for ventilation of industrial premises due to the ease of installation and wide availability of transition elements on the market. Equipment of this type is often chosen for warehouse ventilation, where straight sections of air ducts allow the use of standard round sections.

Rectangular duct fans

A rectangular duct fan is used in large facilities where installation takes place in large cross-section rectangular ducts. This solution ensures high performance with limited network routing height.

The rectangular shape is especially appropriate for workshop ventilation with a large area and a branched air duct system, where it is necessary to transfer a significant volume of air without a substantial increase in flow velocity.

Duct fans with an insulated housing

An insulated housing reduces the noise level during operation, which significantly increases the comfort of operation in rooms where people are located near ventilation equipment. Such models are actively used in commercial and public buildings, where extraneous noise from equipment is undesirable.

Advantages of duct industrial fans

Compact placement directly in the air duct saves useful room space, as additional space for a separate unit is not needed.

• space saving due to built-in installation;
• high performance even with a limited duct cross-section;
• ability to work in complex ventilation networks with multiple branches;
• uniform air distribution throughout the system;
• reliability and long service life;
• simple installation and further maintenance;
• possibility of use in both supply and exhaust systems;
• wide selection of models for various scale tasks.

The fan's performance is selected individually for a specific facility, focusing on the actual room volume and the length of the air duct network.

How to select a duct fan for an industrial facility

Before buying a duct industrial fan, it is important to determine the cross-section of the existing air duct and the expected load on the system – these parameters directly affect the choice of the model and its power.

It is also worth noting separately that a duct fan for industrial premises ventilation is selected with a calculation for 24/7 operation, whereas for commercial facilities, a model with a smaller resource margin is sufficient.

Industrial ventilation in general requires a comprehensive approach to equipment selection, where duct industrial fans are just one of the links in the broader air exchange system of the facility.