Flakt Woods

JM Aerofoil fans deliver high aerodynamic efficiencies (up to 77%) and low specific fan powers. These benefits are achieved using Aerofoil section impeller blades and aerodynamically optimized hub design, which deliver peak operating efficiencies

• High Efficiency impeller design reduces SFP values and running costs
• Adjustable pitch impeller delivers precise performance
• Short or Long cased options provide installation flexibility
• 315 – 1600 mm diameter
• Volumes up to 186,500 m3/h (51.8 m3/s)
• Static pressures up to 2400 Pa
• Fans tested to ISO5801 and BS848
• High energy efficiency
• Low installed noise levels
• Motor protection IP55
• • Air flow up to 20.9 m3/s
• Static pressures up to 1100 Pa
• Fans tested to ISO5801 and BS848
• High energy efficiency
• Low installed noise levels
• Motor protection and terminal block IP55
• Larger sizes available please enquire for more information
  

Impellers

A unique high efficiency aerofoil section blade with a smoothed hub and clamp plate for adjustable pitch angle availability. Woods impellers are all high pressure die cast to offer thin aerofoil sections for low generation of noise. Every cast aluminium component is X-ray examined using Real Time Radiography inspection prior to assembly. The maximum pitch angles shown allow for speed control by frequency inverter (3ph only).

Motors

All motors are totally enclosed air stream rated class F insulation.  Constructed from aluminium or cast iron as standard with special ‘T’ slot, or pad mounted fixings. Single speed motors are suitable for speed control by voltage regulation where indicated. Three phase motors are suitable for use with frequency inverters, suitable for turn down to 20% of maximum speed. Two speed motors are available on request. Suitable for horizontal or vertical shaft operation. Supplied IP55, with removable drain plugs. Sealed for life bearings lubricated with wide temperature range grease. The BT and CT frames are fitted with overheat protection thermostat as standard. 80-160 frame motors are fitted with Thermistor OHP. These motors are suitable for inverter/speed control down to 20% of full speed and where within scope incorporate IE2 compliant motors.

Casings

JM Aerofoil fans are available in either a long cased form, complete with an externally mounted pre-wired electrical terminal box, or short cased for duct or plate installation. Casings are spun from sheet steel with integral pre-drilled and radiused inlet flanges. The galvanised finish gives a high resistance to corrosion and is ideal for external as well as internal use.

Product codes

63 - denotes the fan impeller diameter in centimetres

JM - denotes fan type

20  - denotes impeller hub diameter in centimetres

4 - denotes a nominal 4 pole speed

6 - denotes the number of blades

36  - denotes the pitch angle for the required duty