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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.
The HOFFMAN DEFENDER series of positive displacement Lobe and Screw blower packages means reliability, extreme sturdiness, and compactness. In a competitive global market, our long history of supplying blower solutions to suit our customers' unique requirements sets us apart from the rest. Using modern machining systems and state-of-the-art production processes, our product range is constantly evolving. We offer local service capability, ensuring our advanced technology is backed by technical support.
Positive displacement blowers offer several features and benefits that make them suitable solutions for a wide range of industrial applications. Positive displacement blowers can carry out the toughest tasks with consistent quality and reliability. They provide convenient, reliable solutions that deliver optimal performance and maximum uptime. Some key features of the Hoffman DEFENDER™ Series of positive displacement blowers include:
High-Efficiency with patented rotors that reduce the number of revolutions and enhance the capacity pressure ratio.
Quiet Operation as a result of high-efficiency internal compression, silencers, and a noise-reducing enclosure.
Simple installation and configuration.
Flexible to ensure operation at the point of the best efficiency.
Ease of Maintenance thanks to its simple and robust construction
Our DEFENDER™ rotary lobe blower range has been redeveloped in line with our customers’ exacting requirements and is suitable with environmental conditions between 104° F to -13° F (40° C to -25° C).
Rotary screw positive displacement blowers are uniquely designed. The specialized capabilities of the new screw units create exciting economic opportunities, and various applications around the world are confirming very impressive results.
Screw blowers are volumetric. This means it simply moves the air. It is not a kinetic-energy or dynamic machine, so it does not have to convert different types of energies. A plant’s variable working pressure is easy to handle with volumetric screw technology.
Positive displacement blowers are used in various applications across different industries due to their flexibility and ability to provide a constant and reliable flow of air or gas. Common uses include wastewater treatment, pneumatic conveying, power generation, and chemical and pharmaceutical applications.
As a world leader in blowers and exhausters for different industries, Hoffman and Lamson are committed to playing a vital role by saving energy and protecting the environment. Our team of highly skilled and experienced engineers are focused on developing products that offer maximum benefits to our customers. Our equipment, systems, and services are dedicated to helping customers optimize performance.
