Centrifugal backward curved impeller fans
FRP Series


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Direct drive, single inlet centrifugal fan. Manufactured from galvanised steel sheet. Fan supplied with inspection door and double flange included.
ExII2/-G (Non-Sparking standard ATEX motor). Backward curved impeller made of plated sheet steel or steel sheet protected with anti-corrosion polyester paint coating, dynamically balanced. Designed to continuously circulate air from -20ºC up to 60ºC. Maximum dust quantity 50 mg/m3. Suitable for transporting clean air.

4 pole, IE 2* high efficiency, threephase 230/400V 50Hz up to motor size 132 and 400/690V 50Hz for higher motors. IP55, Class F protection.
* From 0.75 kW the motor can be iE2 efficiency controlled by a frequency converter.

On request
- Manufactured from different materials.
- IE3 motors.
- 631 and 632 models with scroll type FR.
- 2-speed motors.
- 60 Hz versions.
- Painted in different RAL colour.
- High-temperature versions (up to 150ºC) (B versions: with cooling impeller).


ATEX versions
On request, explosion proof versions in accordance with ATEX directive for three phase models:
Ambient temperature -20°C to +60°C, ambient pressure (abs.) 0,8 bar to 1,1 bar according to EN 14986.
- Gas:
2G IIB T2-T3-T4, Motor Exd IIB or ExeII
2G IIB+H2 T2-T3-T4, Motor ExdIIc
3G IIB T2-T3-T4, Motor ExnA (only for 3G zone)
3G IIB+H2 T2-T3-T4, Motor ExnA (only for 3G zone)

- Non-conductive dust:
2D IIIB T125°C-T135°C-T195°CT295°C
3D IIIB T125°C-T135°C-T195°CT295°C

- Conductive dust (compulsory IP 65 motor):
2D IIIC T125°C-T135°C-T195°CT295°C
3D IIIC T125°C-T135°C-T195°CT295°C


  • CRRT-MBPbdp506

    Backward curved impeller

  • CRRT-MBPbdp487

    Inspection door

  • CRRT-MBPbdp481

    Inspection door

  • pdf_serie EN_FRP 547.86Kb

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