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Guides

Technical resources for fan selection, airflow, static pressure, motor configuration, and export documentation.

Fan Bearing Maintenance: Lubrication, Temperature and Early Warning Signs
⚙️ Technical Guide

Fan Bearing Maintenance: Lubrication, Temperature and Early Warning Signs

4 min read

Bearings are the part of an industrial fan most likely to fail, and most failures trace back to lubrication: too little, too much, the wrong grease, or contamination. A practical maintenance routine for belt-driven and direct-driven fans.

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Corrosion-Resistant Fans: Choosing Between PP, FRP, Stainless Steel and Coatings
⚙️ Technical Guide

Corrosion-Resistant Fans: Choosing Between PP, FRP, Stainless Steel and Coatings

3 min read

Acid fumes, chlorides and solvent vapours destroy an ordinary steel fan in months. How polypropylene, fibreglass-reinforced plastic, stainless steel and coated steel compare on chemistry, temperature and static electricity, and the questions that decide the material.

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Fan Selection at Altitude and Temperature: Correcting for Air Density
⚙️ Technical Guide

Fan Selection at Altitude and Temperature: Correcting for Air Density

5 min read

Fan curves are drawn for standard air at 1.2 kg/m³. At 2,000 m, or with gas at 200 °C, the same fan moves the same volume but develops less pressure and absorbs less power, and a hot-gas fan started cold can overload its motor. How to correct a selection properly.

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Commissioning: Measuring the Airflow You Actually Got
⚙️ Technical Guide

Commissioning: Measuring the Airflow You Actually Got

5 min read

Verify installed fan duty with a defined traverse, density and uncertainty; distinguish static and total pressure and use speed and power data for diagnosis.

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Controlling Fan Airflow: Four Methods Compared
⚙️ Technical Guide

Controlling Fan Airflow: Four Methods Compared

4 min read

Compare dampers, inlet vanes, variable speed and fan staging using actual fan and system curves, feasible duties, mains input and annual operating hours.

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Impeller Balancing Grades and Vibration Limits
⚙️ Technical Guide

Impeller Balancing Grades and Vibration Limits

3 min read

What a balance grade number actually permits, why the same grade means a tighter tolerance at higher speed, and the vibration reading that tells you a fan is destroying its own bearings.

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Fan Accessories That Change System Performance
⚙️ Technical Guide

Fan Accessories That Change System Performance

4 min read

Inlet cones, dampers, flexible connectors, guards and silencers each carry a pressure penalty, and fitting them badly costs more performance than most selection errors.

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Roof-Mounted Exhaust Fans: Discharge, Weather and Access
⚙️ Technical Guide

Roof-Mounted Exhaust Fans: Discharge, Weather and Access

3 min read

Vertical against horizontal discharge and what each does to re-entrainment, the curb and flashing details that decide whether the roof leaks, and the maintenance problem nobody plans for.

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Smoke Extract Fans and the 300°C Rating
⚙️ Technical Guide

Smoke Extract Fans and the 300°C Rating

3 min read

What a 300°C/2h marking commits the fan to, why the motor position decides whether the rating is achievable, and the fact that a smoke fan spends its whole life not being used.

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