E 250/56-35.407
Centrifugal fan in welded industrial design (max. 40 °C / max. 3010 1/min)
E 250/56-35.407 Design: M-B Housing: GR 270
Entry volume 3760 m³/h
Total pressure difference 500 daPa
Entry temperature 20 °C
Entry density 1.205 kg/m³
Suction speed 21 m/s
Circumferential speed 88 m/s
Speed 2920 min-1
Efficiency 83% -5%
Power requirement 6.2 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 78 dB(A)/1m±4dB
Fan weight 163 kg
Make: SIEMENS Size: 160M-2 Power: 11 kW
Design: B3 Voltage: 400 V∆ / 690 VY Speed: 2920 1/min
Protection class: IP 55 Frequency: 50 Hz Weight: 100 kg
Efficiency: IE3
Starting: Direct, provide for heavy starting
Other: 3 PTC conductors, fixed bearing DE(AS)a
VENTAPP - fan type E 250/56-35.407
The fan corresponds to the current status in terms of its design and flow technology
of the technique. Fan in welded design according to evaluation group DIN EN ISO 5817, general
Tolerances DIN EN ISO 13920.
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
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
Ground connection
Impeller dynamically balanced according to DIN ISO 1940 G2.5
suction on one side, with curved blades, tilted backwards
Shovel effective diameter Ø 577 mm
Housing seal at the shaft passage through a disc seal with PTFE disc
Protective device
Surface protection for indoor installation
Housing - external system 20 (max. 130°C), grease and rustproof;
Primer: 2K epoxy primer (130)/50 µm;
Top coat: 2K epoxy top coat (220)/ 40 µm, silver gray (RAL: 7001)
Total layer thickness: 90 µm
Housing - Inside System 20 (max. 130°C), grease and rustproof;
Primer: 2K epoxy primer (130)/50 µm;
Top coat: 2K epoxy top coat (220)/ 40 µm, silver gray (RAL: 7001)
Total layer thickness: 90 µm
Bock/GR/add-on parts System 20 (max. 130°C), grease and rustproof;
Primer: 2K epoxy primer (130)/50 µm;
Top coat: 2K epoxy top coat (220)/ 40 µm, silver gray (RAL: 7001)
Total layer thickness: 90 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
Accesories:
1 piece of housing heat/sound insulation to reduce the
Measuring surface sound pressure level to max. 71.6dB(A)/1m ±4dB, thickness: 100mm,
Outer skin made of galvanized steel, designed for outdoor installation
VENTAPP standard, approx. 43 kg. Expected surface temperature of the
Insulating sheet: 22°C (at 20°C ambient temperature. External influences,
e.g. solar radiation, are not taken into account)
1 set of compensator, pressure side, material: Hypalon polyester fabric (max. 120°C),
Installation length: 135mm (silicone-free, UV-resistant), pressure side with clamping flange
(S235, painted) and fastening material, pressure side with baffle
1 set of rubber vibration dampers (type: XII, galvanized), with base plates
Foundation screws
