Blowers provide a consistent and reliable flow of air in wastewater treatment. A variety of blower technologies exist, each with its own advantages in terms of efficiency, pressure output and maintenance requirements. Modern blowers often feature variable speed drives for optimized energy consumption and turndown ratios to match fluctuating demands. Designs emphasizing oil-free operation are crucial in many applications to prevent contamination. Noise reduction and compact footprints are also important considerations for operational environments. Take a look at some blower options below.
AERZEN Delta Hybrid Screw Blowers
Delta Hybrid Screw Blowers from AERZEN utilize a direct drive and provide options for an IE5 synchronous permanent magnet motor, NEMA or IEC motor, and an integrated VFD. They provide reliable, 100% oil-free process air while operating efficiently and economically. In addition, they provide an extended turndown ratio of up to 1-5. The blowers are designed for intake temperatures from minus 40 to 122 degrees F. The acoustic hood has an option for outdoor installation, allowing the machines to be used under direct weather conditions. 610-380-0244; www.aerzen.com
Atlas Copco Compressors ZB7 VSD Blower
The ZB7 Blower from Atlas Copco Compressors is a solution for industries requiring 100% oil-free air, such as wastewater treatment, food and beverage processing, and electronics manufacturing. Designed for efficiency and reliability, it features advanced magnetic bearing technology, eliminating mechanical contact to reduce energy losses, wear and maintenance needs. This results in exceptional durability and uptime, with lower operating costs. The blower’s high-efficiency impellers and integrated VSD ensure optimal airflow and energy savings by adapting to varying process demands. Its compact design fits seamlessly into tight spaces, while low noise and vibration levels make it suitable for noise-sensitive environments. Equipped with the Elektronikon control system, it offers real-time performance monitoring and remote access for enhanced operational control. Fully oil-free and certified to meet stringent Class 0 standards, it delivers sustainable performance. 866-546-3588; www.atlascopco.com
Continental Blower TC Series
The TC Series of single-stage integrally geared turbo blowers from Continental Blower are designed to provide a volumetric airflow range from 100% design to 40% design flow while maintaining the highest efficiency across the full performance window. Power is continuously minimized through the use of inlet guide vanes and discharge diffuser vanes. This ensures that the aeration process is receiving the right amount of air without excessive pressure. 315-451-5410; www.continentalblower.com
Eurus Blower ZZ Series
ZZ Series blowers from Eurus Blower are drop-in replacements for competitor blowers. They have heavy-duty cast housings, machined impellers, alloy steel shafts with oversized bearings, hardened/precision machined steel forged gears, oil-lubricated gear and/or grease- or oil-lubricated drive sides, plus keyless locking assemblies for easier timing gear maintenance. The blowers provide up to 15 psig pressure and 2,350 cfm flow. 918-361-0285; www.eurusblower.com
Hoffman & Lamson electric motor-driven multistage blowers
Electric motor-driven multistage blowers from Hoffman & Lamson excel at boosting air or gas pressure via centrifugal force. Features include balanced multistage shrouded impellers for minimal vibration and a flexible coupling for efficient power transfer and bearing longevity. The robust cast housing and steel rod assembly enhance durability. To address sealing demands, they offer carbon ring seals or the emission-reducing MAX Seal, which also heightens safety and lowers costs in hazardous gas applications. Components include multiple baffle rings, a balance piston, multistage shrouded impellers, flexible coupling, cast housing, labyrinth seal, carbon ring seal and MAX Seal. 724-239-1500; www.hoffmanandlamson.com
