The LTG axial fan type VAR with direct drive and impeller blades that can be adjusted when stationary is a high-performance axial fan with optimum aerodynamic properties. The standard version is equipped with 10 profiled, cast blades. Special versions with fewer blades are available for lower pressures. It can be individually adjusted to any desired operating point thanks to the adjustable blades.
This design is only available as a direct drive with an overhung bearing of the impeller on the shaft of the motor, which is mounted on a bearing block welded to the housing on the suction side. This drive method allows the fan to be operated at a speed that is determined by the choice of standard motor.
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Technical data
| Type | Max. Air Volume [m³/h] | Max stat. Pressure [Pa] | Impeller Diameter [mm] | Conveying Media Temperature [°C] | Pressure Range | Degree of Efficiency [%] |
|---|---|---|---|---|---|---|
| VAR 800 | 40 000 | 850 | 800 | -5 to +40 | Medium pressure | 83,5 |
| VAR 900 | 55 000 | 850 | 900 | -5 to +40 | Medium pressure | 83,5 |
| VAR 1000 | 80 000 | 1 450 | 1 000 | -5 to +40 | Medium pressure | 83,5 |
| VAR 1120 | 110 000 | 1 450 | 1 120 | -5 to +40 | Medium pressure | 83,5 |
| VAR 1250 | 150 000 | 2 200 | 1 250 | -5 to +40 | Medium pressure | 83,5 |
| VAR 1400 | 230 000 | 2 200 | 1 400 | -5 to +40 | Medium pressure | 83,5 |
- Quality class G 6.3 according to DIN ISO 1940
- Direct drive
- Impeller blades adjustable at standstill
- Special corrosion protection: sandblasting, hot-dip galvanising, rubber coating, stainless steel
- Hot gas version up to 200 °C
- Explosion-proof in accordance with ATEX
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