E 250/50-40.407
Ventapp
Typ E250/50-40.407 Centrifugal fan in welded industrial design (max. 280 °C / max. 2980 1/min)
Construction type: M-K
Housing: GR 360
Entry volume 4400 m³/h
Total pressure difference 150 daPa
Inlet temperature 220 °C
Entry density 0.716 kg/m³
Suction speed 25 m/s
Circumferential speed 74 m/s
Speed 2895 min-1
Efficiency 78% -5%
Power requirement 2.3 kW
Mass moment of inertia 1.5 kgm²
Average sound pressure level at the operating point Lpm at a distance of 1m with pipe connection
suction and pressure sides according to DIN 45635, under free field conditions 80.4 dB(A)/1m±4dB
Fan weight 173 kg
Motor:
Make: SIEMENS Size: 132SX-2 Power: 7.5 kW
Design: B3 Voltage: 400 V∆ / 690 VY Speed: 2915 1/min
Protection class: Frequency: 50 Hz Weight: 73 kg
Efficiency: IE3
Starting: Direct, provide for heavy starting
Other: 3 PTC thermistor
The components are designed as follows:
Material(s) housing: 1.0038
Impeller: 1.0976 / S355MC
Bock: 1.0038
Housing continuously welded on the outside and step-welded on the inside, ribbing step-welded
with condensate drain connection: with cap
Suction side: with special flange according to specifications, A250x273 DIN2573 10 thick
Pressure side: with transition and special flange according to specifications, A250x273 DIN2573 10 thick
Bock step-welded
Impeller dynamically balanced according to DIN ISO 1940 G2.5
suction on one side, with curved blades, tilted backwards
Shovel effective diameter Ø 487 mm
Housing sealing at the shaft passage through a stuffing box
with steel sleeve
Clutch protection
Bearing cooling by impeller on the shaft
Grease-lubricated rolling bearings in block bearing housings
Surface protection for indoor installation
Housing - external system 42 (max. 400°C), grease and rustproof (hand rusting);
Top coat: Aluminum coating material based on a special resin combination
(240)/ 20 µm, white aluminum (RAL: 9006)
Total layer thickness: 20 µm
Housing - Inside System 42 (max. 400°C), grease and rustproof (hand rusting);
Top coat: Aluminum coating material based on a special resin combination
(240)/ 20 µm, white aluminum (RAL: 9006)
Total layer thickness: 20 µm
Impeller System 42 (max. 400°C), grease and rust-free (hand-removing);
Top coat: Aluminum coating material based on a special resin combination
(240)/ 20 µm, white aluminum (RAL: 9006)
Total layer thickness: 20 µm
Bock/GR/add-on parts System 42 (max. 400°C), grease and rustproof (hand rusting);
Top coat: Aluminum coating material based on a special resin combination
(240)/ 20 µm, white aluminum (RAL: 9006)
Total layer thickness: 20 µm
Accesories:
1 piece of housing heat/sound insulation to reduce the
Measuring surface sound pressure level to max. 76dB(A)/1m ±4dB, thickness: 100mm,
Outer skin made of galvanized steel, designed for outdoor installation
VENTAPP standard, approx. 39 kg. Expected surface temperature of the
Insulating sheet: 34°C (at 20°C ambient temperature. External influences,
e.g. solar radiation, are not taken into account)
1 set of compensator, suction and pressure side, material: glass fabric (max. 350°C),
Installation length: 135mm (UV-resistant, smoke-tight, solvent-resistant),
Suction and pressure sides with clamping flanges (S235, painted) and
Fastening material, suction and pressure sides with baffles
1 set of rubber vibration dampers (type: XII, galvanized), with base plates
Foundation screws