Mark’s team installed one of the Expel units before a dust extractor filter on the concrete mixer which they were having to unnecessarily replace on a regular basis because the damp compressed air was causing the dust particles to stick which causes clogging and then needs replacing. Expel completely eradicated the problem of water contaminating the compressed airlines. This means that Expel was able to effectively reduce both their expenditure on replacement dust filters costing around £700-£800 for a set of 8 filters, and the downtime costs associated with stopping production in order to replace the filters.
Due to the money saving and production boosting potential this single Expel unit had for the site, Mr Henderson took the initiative to contact our sales team so he could roll Expel out to all of his 19 sites where equipment was becoming damaged and/or not operating correctly because of damp and dirty air. In particular, Mark Henderson promptly had Expel installed across the newly acquired Euromix sites as they were very run down and in need of good reliable equipment to get them to a more productive standard and Expel fit the brief impeccably.
“My goal is to keep downtime low to ensure consistent production and meet all of our contract deadlines in a timely manner, Expel has been the perfect tool for the job” Mark Henderson, Maintenance Manager, Tarmac.
Mark Henderson was also aware that Expel has the capability of removing the need for a refrigerant dryer for aggregate sites. Although the Charlton site was operating without a dryer, Henderson was desperate to eliminate equipment downtime caused by water in compressed airlines and had considered a refrigerant dryer to try and help with the problem of water. Henderson was sceptical to install a dryer as sites with dryers still suffer issues.
“Even the sites that do have refrigerant dryers are still having problems with water in compressed airlines. For instance, solenoid valves on the bin doors have been sticking.” Mark Henderson, Maintenance Manager, Tarmac.
Most compressed airlines at aggregate sites are long and any water vapour present in the air, by the time it has reached the point of use, has had time to cool and condense to liquid water. Additionally, a refrigerant dryer doesn’t remove oil emulsion fluids or solid particulates which also cause problems to pneumatic equipment. Expel is a 3-stage compressed air filter that is capable of removing ALL of these liquids and particulates down to 1 micron all in one unit. Therefore, a dryer is no longer required because Expel does a better, more cost-effective job when installed correctly.
Expel has been incredibly successful, when placed correctly, more dryers can be switched off and the goal to eliminate water from compressed airlines is achieved.