The FS Curtis BWV Series Oil-Free Screw Blowers are high-efficiency process air systems engineered for continuous low-pressure, high-volume air delivery in industrial aeration and pneumatic conveying applications. The series utilizes oil-free screw compression technology combined with Permanent Magnet Variable Frequency Drive (PM-VFD) motors to deliver superior energy efficiency and precise airflow control. The oil-free airend incorporates precision male–female screw rotors operating without lubrication inside the compression chamber, ensuring ISO 8573-1 Class 0 oil-free air quality. Labyrinth ring seals on the air loop and carbon ring seals on the discharge side minimize internal leakage while maintaining compression chamber cleanliness. Direct drive coupling between PM motor and screw airend ensures loss-free torque transmission and reduced maintenance. The integrated VFD enables real-time speed modulation, matching blower output to process demand and reducing energy consumption significantly compared to conventional Roots blowers. Advanced intake duct design and discharge mufflers ensure low pulsation and reduced noise levels. Modular packaged construction with soundproof canopy allows indoor installation with simplified maintenance access. The intelligent touchscreen control system supports multi-language interface, RS485 communication, CAN bus networking, remote start/stop, and multi-blower sequencing. Typical applications include wastewater treatment aeration, fermentation, pneumatic conveying, textile processing, chemical plants, food processing, and industrial oxidation processes requiring stable low-pressure airflow.
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