HRK axial ventilators are made in a shape that is more suitable for in-duct applications.
Their only differences from HRK series are their shapes and dimensions.
Wall plate: The Square Wall Plate has a bell mouth shape which improves the efficiency and is made of ST-37 and chrome plated for climate protection.
It comes with 4 holes for easy installation.
Propeller: 6 – blade impeller made of cast alminium.
Electrical Motor: Standard electrical motors, B3, B5 or B3B5 single or three phase; 900, 1450 rpm 380V. 50 Hz are used.
Our internal minimum standard is IP 54. Explosion proof motors class T3, T4, T5 are also available only for 380V. 50 Hz upon request.