Fan designed for transporting non-aggressive and non-explosive gases without contomination. Typical applications:
various mechanical ventilation installations,
air pumping in production processes,
cooling, drying systems,
refrigeration and air-conditioning equipment,
air handling units.
CONSTRUCTION
low-pressure centrifugal fan with direct drive,
the impeller is welded from galvanized steel sheet with forward curved blades, dynamically balanced according to ISO 1940-1, (stainless steel sheet 1.4301 for size 97),
the housing is made of welded sheet steel,
protective mesh at the inlet,
motor stand in 250-400 models and in the 4/225 model,
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,
figure LG90 in 4/250, 4/315 and 6/315 models,
figure LG270 in other models.
MOTOR
asynchronous single-phase 230V 50Hz (power to 1,1kW),
asynchronous, three-phase 230V/400V 50Hz (power to 3kW)
asynchronous, three-phase 400V/690V 50Hz (power from 5,5kW),
efficiency class IE3 (power from 0,25kW), or IE1 (power to 0,25kW),
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,
painting in higher category of corrosivity,
housing and support made of galvanized steel sheet,
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,
ambient temperature range below -20°C and above +40°C.