We can offer a large range of types and products in the field of centrifugal fans. Please contact our sales department to find out the solution most suitable for you. In addition you find information to the following prodcuts here:
|type/similar types||performance curve||total pressure Pa||air volume m3/h||range of application|
|centrifugals fans type BC, RS, RL, PRC||curve||< 4.100 Pa||< 390.000 m3/h||centrifugal fan for low pressure and clean air|
|centrifugal fans type MB, TRU, RU, PHR, VTC||curve||< 7.600 Pa||< 280.000 m3/h||centrifugal fan for medium pressure and air with parts of dust|
|centrifugal fans type MD, TGR, GR, T10P7, T06P5||curve||< 17.300 Pa||< 220.000 m3/h||centrifugal fan for lmedium pressure and air with parts of dust|
|centrifugal fans type AB, TVP, VP, R||curve||< 22.000 Pa||< 46.000 m3/h||centrifugal fan for high pressure and air with parts of dust|
|centrifugal fans type W, APRD||curve||< 2 x 22.000 Pa||< 46.000 m3/h||centrifugal fan for high pressure and air with parts of dust|
Moreover we can offer you centrifugal fans as follows:
- centrifugals and axial fans for hot air
- centrifugal fans and axial fans made in stainless steel
- centrifugal fans for transportation
- double-sided suction centrifugal fans
- centrifugal fans of any performance data
- centrifugal fans and axial fans in heavy esecution
General information about centrifugal fans
In centrifugal fans the air is sucked horizontally and and blown out in radial direction. In the fan housing there is generated a pressure difference between intake and exhaust port. Fans are selected via the indication of air volume (m3/h or m3/s) and pressure (mbar, mmWS, Pa.). By using the indicated curves the appropriate centrifugal fan is defined, which is optimized for driving power (kW), efficiency (%), speed (min-1), sound (dBA) and size.
Areas of application
GTG Gebläsetechnik GmbH offers centrifugal fans for all current applications except for Subtag operation (“Mine fan”). While in the building services often still forward curved impellers (“Drum Runner”) are used, in industrial applications to get higher power ratings, the backward curved impeller is enforced.
Materials used for centrifugal fans are depending on the application and requirements: steel, wear-resistant steel, stainless steel, heat resistant steel, galvanized steel and plastic materials are available.
According to ATEX centrifugal fans for zones 1, 2, 21 and 22 are available.
Centrifugal fans are either directly driven, that means, that the impeller is mounted directly on the motor shaft, or driven via coupling or via belt. Small centrifugal fans at medium temperatures lower than 150 ° C are generally driven directly. This has several advantages: more compact construction, lower cost, reduced maintenance requirements, low power losses. The biggest disadvantage of direct driven centrifugal fans is that the fan speed is always equal to the engine speed. A change of control and operational data is therefore only possible if the centrifugal fan is used togehter with frequency inverter. Great performance data always needs coupling or belt drive. While the impeller is mounted overhung on a drive shaft, which is clamped by two bearings. Centrifugal fans with coupling build more longer in axial direction, which can occasionally be problematic in handling and installation. Well targeted, the centifugal fan driven by coupling needs less maintenance and causes fewer losses than the centrifugal fan driven by belts. The biggest advantage of fans with V-belt drive is that the performance can be changed later on by increasing or decreasing fans speed.