Using the positive displacement principle, tri-lobe blowers have a number of low-pressure applications such as chemical processes, pneumatic transport and wastewater treatment.
Atlas Copco has reintroduced the ZL tri-lobe blower to its low-pressure portfolio, with the aim of strengthening its position as a supplier of low-pressure compressed air. The variable speed drive (VSD) blower is available in a variety of configurable models, with a choice between a purely mechanical unit using dial gauges for pressure reading or an integrated VSD inverter and Elektronikon controller.