The Charles Austen Enviro ET300 is a high-capacity, oil-free air blower designed to provide powerful, reliable airflow for large-scale aeration systems. Delivering up to 300 litres per minute at 0.20 bar, it is suited to demanding applications where a substantial and consistent supply of air is required.

Part of the Enviro ET Double Series, the ET300 is designed for applications including wastewater treatment, sewage treatment plants, large pond aeration systems and other installations requiring high-volume airflow. Its compact, weatherproof construction provides a practical alternative to larger or noisier rotary vane compressors.

High-capacity airflow for demanding applications

With a rated airflow of 300 L/min at 0.20 bar, the ET300 can supply air to suitably designed diffuser and manifold systems. It is particularly useful in larger installations where the airflow demand may otherwise require multiple smaller pumps.

The actual airflow delivered will depend on operating pressure, pipework, diffuser resistance and the configuration of the aeration system. For best results, ensure that the blower is correctly matched to the total system requirements.

Oil-free air supply

The ET300 uses a diaphragm-based pumping design to provide an oil-free air supply. This makes it suitable for applications where an oil-free source of air is preferred, including pond and wastewater aeration.

Robust construction and serviceability

Designed for demanding operating environments, the Enviro ET300 features a robust, weatherproof enclosure suitable for appropriate indoor or outdoor installations.

The pump is serviceable, with replacement service kits available to help maintain performance and extend its working life. Charles Austen recommends servicing Enviro pumps at least every 18 months.

Typical applications

• Large sewage treatment and wastewater aeration systems.

• Commercial pond aeration.

• Large fish ponds and aquatic installations.

• Aquaculture and fish-holding systems.

• Hydroponic systems requiring high-volume air supply.

• Replacement of suitable rotary vane compressors.

Technical specifications

Installation and maintenance

The ET300 has a 26mm outlet connection. Ensure that the connecting pipework, manifold and diffusers are appropriately sized for the required airflow and operating pressure.

For continued performance, follow the manufacturer's installation and maintenance guidance. Charles Austen recommends servicing Enviro pumps at least every 18 months, with service kits available for routine maintenance.

Choose the Charles Austen Enviro ET300 when your installation needs high-volume, oil-free airflow from a robust, serviceable air blower.