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DOUBLE INLET BACKWARD CURVED IMPELLER – BELT DRIVE DFR Series

Description

DFR-N

Double inlet centrifugal fans. Manufactured from steel sheet protected with cataforesis primer + epoxy paint finish. Designed to continuously circulate air from -20ºC up to 40ºC (60ºC with C3 bearings).

Assembly systems
• ARRANGEMENT 6: Impeller mounted on shaft running in bearings on each side of casing and supported by the fan casing.
• ARRANGEMENT 18: Generally as arrangement 6 but with a fan and motor supported by common base frame.
• ARRANGEMENT 19: Generally as arrangement 6 but with the motor supported by the fan scroll.

Motors
2, 4 or 6 pole, IE 3* high efficiency (the rpm of each motor will be adapted according to the calculation for each drive), three-phase 230/400V 50Hz up to motor size 132 and 400/690V 50Hz for higher motors. IP55, Class F protection.
* From 0,75kW, motor can be IE 2 and controlled by VSD.

On request
• Manufactured from different materials.
• 2-speed motors.
• 60 Hz versions.
• Painted in different RAL colour.
• Inspection door, draining, weather seal on scroll and shaft access
• Thermal insulation lagging.

ATEX

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:
3G IIB T2-T3-T4, Motor ExnA (only for 3G zone)
3G IIB+H2 T2-T3-T4, Motor ExnA (only for 3G zone)

Attributes

  • 61-DFR-N-TRbdp506

    Backward curved impeller

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