Inline centrifugal fans with the air capacity up to 9.540 m³/h for rectangular ducts.

APPLICATIONS

• Supply and exhaust ventilation systems for various premises with a limited mounting space.
• Designed for connection with 400x200, 500x250, 500x300, 600x300, 600x350, 700x400, 800x500, 900x500, 1000x500 mm rectangular air ducts.

DESIGN

• Fan casing is made of galvanized steel.

MOTOR

• The impeller with forward curved blades made of galvanized steel is powered by 4-, 6- or 8- pole external rotor asynchronous motor.
• Such modification ensures high air flow capacity and relatively significant differential pressure.
• For thermal overheating protection the thermal contacts with leaded outside terminals are incorporated in the motor winding for connection with the external protection devices.
• The motor is equipped with the ball bearings for long service life.
• For precise features, safe operation and low noise, each impeller is dynamically balanced while assembly.
• Motor protection rating IP 44.

SPEED CONTROL

• Smooth or step speed control with a thyristor or autotransformer speed controller.
• Several fans may be connected to one speed controller provided that the total power and operating current do not exceed the rated speed controller parameters.

MOUNTING

• The fans are designed for inline rectangular air duct mounting and require no special fixing in case of direct connection.
• In case of connection through the flexible connectors the fan is fixed to a building by means of supports, suspension brackets or fixation brackets. 
• The fans can be mounted in any position with respect to the pointer direction on the casing.
• Access for the fan maintenance shall be provided.
• The fan is powered through the external terminals.
• The casing is provided with the removable access door for maintenance.