Vents - VK 250 Q Centrifugal Inline Fan Ø250 mm, 930 m³/h

250 mm centrifugal inline fan with a quiet motor, moving 930 m³ per hour. Power consumption 175 W, weight 4.5 kg.

The VK 250 Q is the quiet version of Vents' VK 250. The Q stands for a motor that runs more quietly than the standard VK's. This version has no built-in controller and comes without a plug: you connect it to your own controller.

Why centrifugal

The VK has a centrifugal impeller with backward-curved blades. It builds more pressure than an axial or mixed-flow impeller of the same size, which you notice as soon as there is resistance in the system: a carbon filter, a long duct or a few bends. The VK holds its airflow better.

Control

The motor can be controlled steplessly with a separate speed controller. Let it run quietly when possible and turn it up when it gets warm. Choose a controller rated well above the fan's current.

Construction

The housing is plastic, the motor runs on ball bearings and has thermal protection. The fan can be mounted in any position; use the mounting feet to fix it to a wall, ceiling or beam.

Technical Specifications:

• Power consumption: 175 W
• Connection size: 250 mm
• Airflow: 930 m³ per hour
• Motor: quiet Q motor with thermal protection
• Impeller: centrifugal, backward-curved blades
• Control: no built-in controller, stepless control with a separate controller
• Temperature sensor: none
• Plug: optional; choose "Plug" above and you get a separate 2 m lead with plug (2 x 0.75 mm²), to connect yourself in the terminal box.
• Housing: plastic
• Weight: 4.5 kg
• Mounting: any position

Frequently asked questions

What is the difference with the VK 250 Duo R and VK 250 U?
The Duo R has a two-speed motor with switch, the U a built-in controller with temperature sensor. This VK 250 Q has a quieter motor and no control of its own.

Can I use a carbon filter with it?
Yes, that is exactly where a centrifugal fan is strong. Choose the filter for the fan's airflow so it doesn't become the limiting factor.