Products
Dampers & Flow Adjustment
When a duty change is required, and provided the fan is capable of it, there are several methods available to alter fan delivery. Pulley change, damper control, inlet guide vanes, variable speed drives.
Aspiration
Boiler and Kilns
Combustion Air
Cooling
Dust Collection / Bag Filters
Fluid Beds
Forced & Induction Draft
Fume Extraction
Pneumatic Conveying
Scrap Conveying
Scrubbers
Fan / Blower Repair
Fan Upgrades
Installations
Maintenance
Cement
Food / Milling
H/D Process
HVAC
Mining
Pollution Control
Steel
Wood
Pulley Changes
The simplest way to alter speeds when the fan is driven by a v-belt system. Increasing or decreasing the diameter of the drive pulley or the driven pulley, or even both pulleys, will bring about the desired change in fan volume/ pressure.
Damper Control
Allows users to alter air volumes by changing the system resistance, the fan flow / pressure & power are thus change. Adding or reducing resistance requires the fan to move up or down along its characteristic curve, which generates more or less air with no change to the fan speed. Their drawback is that their effect in airflow is limited and they are not energy efficient. it is a simple but energy in efficient way of changing the duty.
Inlet Vane Controls
Similar in function to a damper but a more efficient option. They alter the characteristics and the fan curve. At best, they provide only modest reductions in flow.
Variable Speed Drives
Provides the widest variety of speed control. A very efficient and effective way of changing fan delivery al but an expensive one.
