Tsurumi 32TRN21.5 Submersible Self-Aspirating Aerator – 32TRN21.5

The Tsurumi 32TRN21.5 is a submersible self-aspirating aerator designed for efficient aeration and mixing in sewage and wastewater treatment applications. Featuring Tsurumi’s special semi-open impeller, it draws air directly from above the water surface without requiring a separate blower for standard aeration duties. The air and water are mixed into fine bubbles and discharged evenly, increasing dissolved oxygen levels while providing powerful agitation throughout the tank.

Designed for continuous operation, the TRN series incorporates Tsurumi's exclusive Oil Lifter, dual silicon carbide mechanical seals, and an anti-wicking cable entry system for long service life and dependable performance in demanding wastewater environments.

Suitable Applications

• Mixing and holding tanks
• Sewage treatment plants and systems
• Equalization tanks
• Reaction tanks
• Batch reactors
• Abattoirs
• Fish tanks and water containment systems

Key Features

• Self-aspirating operation eliminates the need for a separate blower for standard aeration applications.
• Special semi-open impeller produces fine air bubbles for efficient oxygen transfer.
• Powerful radial agitation created by combined air-lift and convective flow.
• Suitable for deeper installations when used with an optional stand or draft tube.
• Tsurumi Oil Lifter continuously lubricates the mechanical seal for extended service life.
• Dual silicon carbide mechanical seals provide superior durability.
• Anti-wicking cable entry protects the motor from moisture ingress.
• Designed for continuous-duty wastewater treatment applications.

Key Specifications

Documentation & Downloads