Inline centrifugal fan VENTS VKMz 150 — duct-mounted ventilation unit, model VKMz 150

Inline centrifugal fan VENTS VKMz 150 is a duct-mounted ventilation unit designed for air extraction and supply in residential and commercial HVAC systems. The fan uses a backward-curved centrifugal impeller that provides steady airflow through round ducts with a nominal diameter of 150 mm. Engineered to convert axial intake into radial discharge, the VKMz 150 handles moderate static pressure and is intended for continuous or intermittent operation in bathrooms, kitchens, utility rooms and ventilation networks where compact inline installation is required.

Advantages

The unit offers reliable airflow performance with lower noise levels compared to many axial inline fans, thanks to its centrifugal impeller design. Its compact cylindrical housing enables direct insertion into round ductwork, reducing installation complexity and preserving duct cross-section. The fan is suitable for both supply and exhaust applications and provides consistent performance at varying duct lengths and simple bends, making it adaptable to a range of common ventilation layouts.

Suitable for

• Bathroom and shower extraction
• Kitchen ventilation for local exhaust
• Utility rooms, laundry and storage areas
• Inline ventilation in residential and light commercial duct systems

Key specifications

• Type: inline centrifugal (duct-mounted) fan
• Duct connection diameter: 150 mm nominal
• Impeller: backward-curved centrifugal impeller for stable radial flow
• Application: supply and exhaust ventilation for small to medium duct runs
• Installation: inline insertion into round duct with axial-to-radial flow conversion

How to use

Install the fan directly into the round duct line with the airflow direction marked on the housing aligned to the required flow path. Mounting can be performed horizontally or vertically, ensuring access for maintenance and keeping the unit secured against vibration. Connect electrical supply in accordance with local regulations and the fan wiring diagram. Use appropriate duct connectors and seals to prevent air leakage. For sustained performance, provide periodic inspection and cleaning of the impeller and housing to remove dust and lint.

Usage recommendations

Choose this inline centrifugal unit when a compact solution is needed to overcome moderate duct resistance or to reduce noise compared with simple axial inline fans. For longer duct runs, additional consideration of static pressure and possible booster fans is advised. Regular visual checks and cleaning every 6–12 months will maintain efficiency in domestic environments.