Industrial and Lab Blowers, also known as Nalgene Blowers, are ordered by selecting the right capacity, type of drive, motor and combination of plastic materials for your application. The steps below outline proper blower selection.

Four Steps to Blower Selection

1. Determine CFM and Static Pressure
  • CFM is cubic feet per minute and represents the volume of the area to be ventilated.
  • Static pressure is measured in inches of water. It is the total resistance to incoming air flow from ducts, fittings, elbows, dampers, and other factors.
  • All blowers are 60Hz.
2. Select Direct or Belt Drive (if needed)
  • Some size blowers are only available in direct drive. Others can be belt driven as an option.

Direct Drive

Belt Drive

More compact Field adjustable to vary capacity

Single speed

Flexible to process changes
Fewer moving parts Reduces stress on motor bearings
No field adjustment Economical in changing environments
3. Motor Selection

Motor Type



Totally enclosed fan-cooled
Housings have no direct openings
Internal fan cools motor
Corrosive vapors
Dirty, damp or oily service
Explosion proof (XP) Ul-approved motor*
Forward curve blades

* UL and CSA for Class l, Group D or Class ll, Group F and G.

4. Material Selection of Wheel
  • The wheel's chemical resistance takes priority because it is under centrifugal stress.



Good chemical resistance Very good general chemical resistance
Best at room temperature Withstands higher temperatures, stresses
Low cost Potentially explosive fumes or dust

Note: Lab Blowers (size codes -0050 to -0150) have round inlets and outlets. Industrial blowers have round inlets and rectangular outlets. All blowers used outdoors must be protected against weather. Blowers are supplied in counter-clockwide up-blast position. Other positions may be requested.