Centrifugal roof fan VENTS VKMK (VKMKp) series

Centrifugal roof fans with the air capacity up to 1880 m³/h (50 Hz) and up to 1920 m³/h (60 Hz) in the steel casing with the horizontal exhaust of air. Designed for exhaust ventilation systems.

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Products in this series (14)

VKMK 150	VKMK 250	VKMK 160
VKMK 200	VKMK 315	VKMKp 150
VKMKp 160	VKMKp 200	VKMKp 250
VKMKp 315	VKMK 150 (220/60)	VKMK 200 (220/60)
VKMKp 150 (220/60)	VKMKp 200 (220/60)

Series			Spigot diameter, mm
VENTS VKMK	p - flat connection plate		150; 160; 200; 250; 315

ErP data
Overall efficiency	η,[%]
Measurement category	MC
Efficiency category	EC
Efficiency grade	N
Variable speed drive	VSD
Power	[kW]
Current	[A]
Air flow	[m³/h]
Static pressure	[Pa]
Speed	[n/min^-1]
Specific ratio	SR

Applications

Exhaust ventilation system for various premises. Suitable for mounting on any roof types as well as connection to Ø 150 up to 315 mm round air ducts.

Design

The fan casing is made of steel with polymeric coating. A thin steel connection plate is provided at the bottom of VKMKp model.

Motor

The centrifugal impeller with backward curved blades is powered by means of the single-phase motor with external rotor. The motors are equipped with thermal overheating protection with automatic restart as well as ball bearings for long service life. For precise features, safe operation and low noise of the fan, each turbine is dynamically balanced while assembly. Motor protection rating IP 44.

Speed control

Smooth or step speed control is performed by means of the thyristor or autotransformer controller. Several fans can be connected to one controller in case the total power and operating current do not exceed the rated controller values.