NVSAIR | Ventilation For Life

OBR 140 – Single Inlet Forward Curved Radial Fan

The fan housing is made of electrostatic powder-coated cold-rolled steel sheet. Single-inlet radial fan with forward-curved blades; the impeller is made of corrosion-resistant, high-quality galvanised steel with an aerodynamic design for uniform airflow. As the motor is outside the airflow, higher air transfer is achieved. Thanks to its dense blade structure and efficient asynchronous motor, it produces high airflow and pressure for its size, runs quietly and requires little maintenance.

Applications: Used for ventilation of greenhouses, factories, warehouses, paint shops, shopping centres and workshops; also preferred by machine manufacturers for plastics and packaging machinery. Its compact size is an advantage where space is limited.

Speed control: Speed can be adjusted with a linear voltage regulator on single-phase models (optional).

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Description

Technical Specifications

HOUSING ELECTROSTATIC POWDER-COATED COLD-ROLLED STEEL SHEET
IMPELLER GALVANISED STEEL, FORWARD CURVED
INLET TYPE SINGLE INLET
MOTOR ASYNCHRONOUS, OUTSIDE THE AIRFLOW
MOTOR PROTECTION CLASS IP 44
MOTOR INSULATION CLASS CLASS B

Technical Data

MODEL VOLTAGE
(V)
FREQUENCY
(Hz)
POWER
(W)
CURRENT
(A)
CAPACITOR
(µF)
SPEED
(rpm)
AIRFLOW
(m³/h)
SOUND LEVEL
(dB(A))
OBR 140M-2K 230 50/60 200/285 1.1/1.25 8 2,930/3,460 1,100/1,300 53
OBR 140M-4K 230 50/60 175 1.05/0.83 8 1,480/1,720 550/640 45

Paired values are for 50 Hz / 60 Hz. Sound pressure level measured at 3 m. M: single-phase, T: three-phase; 2K: 2-pole, 4K: 4-pole motor.

Technical Drawings and Curves

OBR 140
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