Cabinet
It is made of PE or PPel (PP or PVC on request) as standard. Stainless steel screws are used for joints. The mounting base is made by casting PE, PEel and PPel. The pipe mounting bracket is made of steel sheet with primer coating.
Running wheel
is radial, made by casting PP (PPel or PVC on request).
Motor
4 or 6 pole single or three phase asynchronous motor, insulation class F, grease-filled ball bearings for life. Motor is located out of the air stream. Protection class IP55. Multi-speed design, explosion-proof or outdoor versions on request.
Clamping machine
is located on the motor.
Speed control
is performed by changing the voltage or frequency converters.
Mounting
is carried out on a base or on a bracket for horizontal mounting.
Noise
The sound pressure level at a distance of 1,5 m in the free acoustic field shall be read on the Lp scale of the power diagram from the intersection of the speed curve and the line of maximum efficiency. The sound power in the different octave bands for different speeds is given in the table below the diagram. The values are measured with a tolerance of ±3 dB.
Accessories
- VFVN frequency converter for three-phase motors
- VFTM, VFKB frequency converters
- bracket for horizontal mounting
- ON/OFF switch
- flexible coupling including inlet/outlet clamps
- base plate
Instructions
The design of the fans makes them suitable for long ducts in various process and air handling applications, in the chemical industry, petrochemicals and laboratories. They are not suitable for the extraction of wood dust and grit, or other flammable or explosive mixtures. Fans should only be started after connection to the pipe route to avoid overloading the motor.
Caution
Casing and wheel material can be selected within the specified range to suit the needs of the particular project and should be specified in the fan specification.