ERG supplied two packed tower scrubbers to give Seagate security of treatment through 100% equipment redundancy. The process air extraction system, provided by Seagate’s M&E contractor Total Engineering and Design, links the new wafer manufacturing facility to the scrubbers, where solvent fumes from the production process are removed from the air. Treated air can then be discharged to atmosphere, enabling Seagate to operate below the emission limit. The solvent used is NMP, which has a discharge limit of 2mg/m³.

Scrubber vessels, pipework and valves, recirculation pumps, and internal random packing are all made from stainless steel. The scrubbers were fully fitted out, and the pipework partially trial assembled prior to delivery. High specification instruments and a purpose-made control panel were included as part of ERG’s system.