VKPFI
Inline, sound and heat - insulated 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.
- VKPFI : 1.440 ÷ 9.540 m3/h