EVT
AXIAL-FLOW FAN WITH LIGHT ALLOY DIE-CAST IMPELLER WITH WING-PROFILE BLADES
Fibreglass roof.
Base for securing to the roof.
Use: the exhaust asial towers are suitable for the suctin of vitiated air flue gases and vapour from the environment.They are very useful during the summer season in those environments where air changes are necessary in order to keep the room ventilated.
They are also used for the aeration of workshops, founderies, cement factories, tanneries, joineries, and for chemical mechanical and metallurgical industries where big air volumes have to be sucked at low pressure.
Minimum working temperature - 20 °C, maximum + 60 °C.
CONSTRUCTION FEATURES
Tower. The outside structures is of pressed steel sheet with double perforate flange for anchorage on the roof or at the end of a pipe, complete with bracket for placing the driving motor.
Diecast helical rotor in lighy alloy (spark-proof) with ring countour blades dynamically balanced, assembled caantilevered on the driving shaft. The rotor’s blade angle is adjustable when the fan is stopped for the types from 710 to 1000.
Rain shielding roof which can be disassembled, made of fiberglass-reinforced plastic (polyester resin). The air direction is from the motor to the rotor, (it is always prossible to invert the airflow, i.e. from the rotor to the motor, by inverting the rotation of the motor, by disassembling the rotor and reassembling it overturned).
Special executions on request. Painting of the outside structure with acid and rust-proof paint. Spark-proof unit with explosion-proof motor.
Accessories on request. Anchorage base. Automatic opening shutters with the passing of the airflow.
Characteristics: V = 8.000÷41.500 m3/h | Pt = 6÷35 kg/m2
ErP: these fans are covered by Directive 2009/125/EC
SPECIFICATIONS
| Model EVT |
Impeller ømm |
Installed Motor | Power KW |
Rotation Speed Rpm |
Volumetric Flow V = m³/min |
Discharge Pressure Pt = kg/m² (mm H2O) |
Inlet Flange Ømm |
Outlet Flange int. mm |
|---|---|---|---|---|---|---|---|---|
| 560/A | 560 | 80 B - 4 p | 0,75 | 1380 | 143 - 190 | 22 - 12 | 560 | 560x0 |
| 630/A | 630 | 80 A - 6 p | 0,37 | 930 | 112 - 165 | 12 - 5 | 630 | 630x0 |
| 630/B | 630 | 90 S - 4 p | 1,1 | 1400 | 170 - 250 | 28 - 12 | 630 | 630x0 |
| 710/A | 710 | 90 S - 6 p | 0,75 | 930 | 170 - 245 | 18 - 8 | 710 | 710x0 |
| 710/D | 710 | 100 L - 4 p | 2,2 | 1420 | 245 - 335 | 35 - 14 | 710 | 710x0 |
| 800/A | 800 | 90 L - 6 p | 1,1 | 930 | 230 - 350 | 20 - 8 | 800 | 800x0 |
| 800/D | 800 | 100 L - 4 p | 3 | 1420 | 370 - 470 | 35 - 16 | 800 | 800x0 |
| 900/A | 900 | 112 M - 6 p | 2,2 | 950 | 310 - 485 | 25 - 12 | 900 | 900x0 |
| 1000/A | 1000 | 132 S - 6 p | 3 | 950 | 400 - 600 | 28 - 12 | 1000 | 1000x0 |
ATTACHMENTS
A wonderful serenity has taken possession of my entire soul, like these sweet mornings of spring which I enjoy with my whole heart. I am alone, and feel the charm of existence in this spot, which was created for the bliss of souls like mine.
I am so happy, my dear friend, so absorbed in the exquisite sense of mere tranquil existence, that I neglect my talents. I should be incapable of drawing a single stroke at the present moment; and yet I feel that I never was a greater artist than now.
When, while the lovely valley teems with vapour around me, and the meridian sun strikes the upper surface of the impenetrable foliage of my trees, and but a few stray gleams steal into the inner sanctuary, I throw myself down among the tall grass by the trickling stream; and, as I lie close to the earth, a thousand unknown plants are noticed by me: when I hear the buzz of the little world among the stalks, and grow familiar with the countless indescribable forms of the insects and flies, then I feel the presence of the Almighty, who formed us in his own image.
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