High on Aggregate Industries’ priority list is to be a leading sustainable business. Plant Manager Dave Owen is exceptionally proactive in this matter and is very keen to reduce energy usage at every site under his management. Expel is the first ever compressed air filter which can improve the sustainability of compressed air usage.
Unlike standard compressed air filters, Expel does not require any replacement filter elements. This eradicates the wastage generated by traditional filters as well as saving the need for maintenance companies to come and service these filters. Additionally, as the internal elements of traditional filters become saturated, they gradually become more and more energy draining because a greater volume of compressed air is required to pass through the filter elements. In contrast, Expel has a consistently low pressure bar drop (it will never exceed 0.1 bar) because rather than retaining any liquids or solid particulates it will instantly pass these contaminants into an automatic drain. This means energy usage will also remain consistently low and will never increase over time.
In addition to the sustainability aspects of Expel, the Expel compressed air filter offers a far superior solution to the problem of liquid water, oil emulsion fluids and solid particulates in compressed air lines. This 3-in-1 solution has eradicated all problems the site was experiencing with the airlines. By installing one Expel unit at point of use in the bitumen area, the site no longer experiences issues with water freezing causing ice blockages. Another Expel unit was installed prior to the solenoid control panel to ensure they are adequately protected against damaging liquid water, oil emulsion fluids and solid particulates.