LFB

APPLICATION

Fan designed for transporting non-aggressive and non-explosive gases without contamination. Typical applications:

• exhaust and supply ventilation in ventilation units or individual ventilation systems,
• drying, cooling and ventilation systems,
• air filtration systems, eg painting walls,
• pneumatic transport.

CONSTRUCTION

• low-pressure radial fan with direct drive,
• the impeller is welded from galvanized steel sheet with forward curved blades,
• the housing is made of welded sheet steel,
• protective mesh at the inlet,
• galvanized net on the outlet (for sizes 2-250),
• fan painted blue RAL 5010 (corrosivity category C3),
• maximum temperature of the transported medium is 80°C,
• ambient temperature range from -20°C to + 40°C,
• LFB are supplied in LG90 configuration.

MOTOR

• asynchronous single-phase 230V 50Hz (power to 1,5kW),
• asynchronous, three-phase 230V/400V 50Hz (power to 3 kW),
• asynchronous, three-phase 400V/690V 50Hz (power from 4 kW),
• degree of protection IP55,
• insulation class F,
• three-phase motors are adapted for frequency converter.

SPECIAL EXECUTIONS

• optional configuration LG/RD,
• color other than standard,
• pointing in higher category of corrosivity,
• housing and support made of galvanized steel sheet,
• impeller, housing and support made of stainless steel 1.4301,
• housing and support made of acid-proof steel 1.4404,
• motor with voltage and frequency of power different than standard,
• motor with other than standard degree of protection,
• motor equipped with sensors or additional cooling,
• sealing between the housing and the motor,
• maximum temperature of the transported medium above 80°C,
• ambient temperature range below -20°C and above +40°C.