HOFFMAN & LAMSON’s Positive Displacement Blower Technology delivers reliable, energy-efficient solutions for demanding industrial and environmental applications. Our PD blowers, including rotary lobe and screw models, are engineered to provide consistent airflow with minimal energy consumption. The HOFFMAN DEFENDER™ Series is trusted worldwide for wastewater treatment, aeration, and gas conveyance. With advanced rotor designs and internal compression systems, our blowers reduce operational costs while maximizing uptime. Whether you're optimizing municipal infrastructure or industrial processes, our PD blower packages offer unmatched performance and durability. Discover why Hoffman & Lamson is the global leader in positive displacement blower technology.
What Are Positive Displacement Blowers?
A positive displacement blower, also known as PD blower or rotary air blower, operates by trapping a specific volume of air or gas in a chamber and then displacing it by using rotating elements such as lobes or screws. Positive displacement blowers are designed for applications that require consistent and reliable airflow at varying pressures.
Positive displacement blowers are designed for high-efficiency, they often feature low energy consumption and reduced operational costs. Constructed with robust materials, PD blowers are an ideal solution for demanding industrial environments such as Wastewater Treatment .
